From f680f70adbeab28b35f849016b964dd645db6237 Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Tue, 3 Nov 2015 11:51:33 +0530 Subject: ath10k: fix invalid NSS for 4x4 devices The number of spatial streams that are derived from chain mask for 4x4 devices is using wrong bitmask and conditional check. This is affecting downlink throughput for QCA99x0 devices. Earlier cfg_tx_chainmask is not filled by default until user configured it and so get_nss_from_chainmask never be called. This issue is exposed by recent commit 166de3f1895d ("ath10k: remove supported chain mask"). By default maximum supported chain mask is filled in cfg_tx_chainmask. Cc: stable@vger.kernel.org Fixes: 5572a95b4b ("ath10k: apply chainmask settings to vdev on creation") Signed-off-by: Rajkumar Manoharan Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/mac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index a7411fe90cc4..95a55405ebf0 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -4225,7 +4225,7 @@ static int ath10k_config(struct ieee80211_hw *hw, u32 changed) static u32 get_nss_from_chainmask(u16 chain_mask) { - if ((chain_mask & 0x15) == 0x15) + if ((chain_mask & 0xf) == 0xf) return 4; else if ((chain_mask & 0x7) == 0x7) return 3; -- cgit v1.2.3 From 12551ced30bb4658496ba76b7998dc6930b45722 Mon Sep 17 00:00:00 2001 From: Bartosz Markowski Date: Thu, 5 Nov 2015 09:50:40 +0100 Subject: ath10k: fix the currently supported QCA9377 target version name When introducing the original QCA9377 support, the chip target version was wrongly picked. The chip advertising itself with bmi target value equal to 0x05020001 is in fact a 1.1 revision. I realized this once I got a real 1.1 hw to play with. Signed-off-by: Bartosz Markowski Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/core.c | 4 ++-- drivers/net/wireless/ath/ath10k/hw.h | 8 ++++++-- drivers/net/wireless/ath/ath10k/pci.c | 2 +- 3 files changed, 9 insertions(+), 5 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c index aa9bd92ac4ed..c8f6ca284b9d 100644 --- a/drivers/net/wireless/ath/ath10k/core.c +++ b/drivers/net/wireless/ath/ath10k/core.c @@ -138,8 +138,8 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { }, }, { - .id = QCA9377_HW_1_0_DEV_VERSION, - .name = "qca9377 hw1.0", + .id = QCA9377_HW_1_1_DEV_VERSION, + .name = "qca9377 hw1.1", .patch_load_addr = QCA9377_HW_1_0_PATCH_LOAD_ADDR, .uart_pin = 7, .otp_exe_param = 0, diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h index 39966a05c1cc..01bf2244f54c 100644 --- a/drivers/net/wireless/ath/ath10k/hw.h +++ b/drivers/net/wireless/ath/ath10k/hw.h @@ -42,6 +42,8 @@ #define QCA6174_HW_3_0_VERSION 0x05020000 #define QCA6174_HW_3_2_VERSION 0x05030000 +#define QCA9377_HW_1_1_DEV_VERSION 0x05020001 + enum qca6174_pci_rev { QCA6174_PCI_REV_1_1 = 0x11, QCA6174_PCI_REV_1_3 = 0x13, @@ -60,6 +62,10 @@ enum qca6174_chip_id_rev { QCA6174_HW_3_2_CHIP_ID_REV = 10, }; +enum qca9377_chip_id_rev { + QCA9377_HW_1_1_CHIP_ID_REV = 0x1, +}; + #define QCA6174_HW_2_1_FW_DIR "ath10k/QCA6174/hw2.1" #define QCA6174_HW_2_1_FW_FILE "firmware.bin" #define QCA6174_HW_2_1_OTP_FILE "otp.bin" @@ -85,8 +91,6 @@ enum qca6174_chip_id_rev { #define QCA99X0_HW_2_0_PATCH_LOAD_ADDR 0x1234 /* QCA9377 1.0 definitions */ -#define QCA9377_HW_1_0_DEV_VERSION 0x05020001 -#define QCA9377_HW_1_0_CHIP_ID_REV 0x1 #define QCA9377_HW_1_0_FW_DIR ATH10K_FW_DIR "/QCA9377/hw1.0" #define QCA9377_HW_1_0_FW_FILE "firmware.bin" #define QCA9377_HW_1_0_OTP_FILE "otp.bin" diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c index 3fca200b986c..c444b43f183d 100644 --- a/drivers/net/wireless/ath/ath10k/pci.c +++ b/drivers/net/wireless/ath/ath10k/pci.c @@ -92,7 +92,7 @@ static const struct ath10k_pci_supp_chip ath10k_pci_supp_chips[] = { { QCA6174_2_1_DEVICE_ID, QCA6174_HW_3_2_CHIP_ID_REV }, { QCA99X0_2_0_DEVICE_ID, QCA99X0_HW_2_0_CHIP_ID_REV }, - { QCA9377_1_0_DEVICE_ID, QCA9377_HW_1_0_CHIP_ID_REV }, + { QCA9377_1_0_DEVICE_ID, QCA9377_HW_1_1_CHIP_ID_REV }, }; static void ath10k_pci_buffer_cleanup(struct ath10k *ar); -- cgit v1.2.3 From 6cf213958299803c1166e63c1805a8b8cd135be5 Mon Sep 17 00:00:00 2001 From: Bartosz Markowski Date: Thu, 5 Nov 2015 09:50:41 +0100 Subject: ath10k: update missing hw_params of QCA9377 hw1.1 The uart_pin was incorrectly configured for QCA9377 and the recently added hw_params were omitted. Signed-off-by: Bartosz Markowski Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c index c8f6ca284b9d..a30d41559134 100644 --- a/drivers/net/wireless/ath/ath10k/core.c +++ b/drivers/net/wireless/ath/ath10k/core.c @@ -141,8 +141,10 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { .id = QCA9377_HW_1_1_DEV_VERSION, .name = "qca9377 hw1.1", .patch_load_addr = QCA9377_HW_1_0_PATCH_LOAD_ADDR, - .uart_pin = 7, + .uart_pin = 6, .otp_exe_param = 0, + .channel_counters_freq_hz = 88000, + .max_probe_resp_desc_thres = 0, .fw = { .dir = QCA9377_HW_1_0_FW_DIR, .fw = QCA9377_HW_1_0_FW_FILE, -- cgit v1.2.3 From 079a0490e207c5a88e4b40cefcc331f4bce562f4 Mon Sep 17 00:00:00 2001 From: Bartosz Markowski Date: Thu, 5 Nov 2015 09:50:42 +0100 Subject: ath10k: introduce dev_id to hw_params A follow up patch introducing a QCA9377 hw1.0 support will need this device identification helper for an explicit distinction of HWs, as apparently both QCA6174 hw3.0 and QCA9377 share the same BMI target version (0x0502000x). For the QCA9377 hw1.1 previously added we were just lucky we did not overlap with the same chip_id_rev. Signed-off-by: Bartosz Markowski Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/core.c | 27 ++++++++++++++++++++++++++- drivers/net/wireless/ath/ath10k/core.h | 1 + drivers/net/wireless/ath/ath10k/hw.h | 6 ++++++ drivers/net/wireless/ath/ath10k/pci.c | 6 ------ 4 files changed, 33 insertions(+), 7 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c index a30d41559134..b80b8f372354 100644 --- a/drivers/net/wireless/ath/ath10k/core.c +++ b/drivers/net/wireless/ath/ath10k/core.c @@ -51,6 +51,7 @@ MODULE_PARM_DESC(rawmode, "Use raw 802.11 frame datapath"); static const struct ath10k_hw_params ath10k_hw_params_list[] = { { .id = QCA988X_HW_2_0_VERSION, + .dev_id = QCA988X_2_0_DEVICE_ID, .name = "qca988x hw2.0", .patch_load_addr = QCA988X_HW_2_0_PATCH_LOAD_ADDR, .uart_pin = 7, @@ -69,6 +70,25 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { }, { .id = QCA6174_HW_2_1_VERSION, + .dev_id = QCA6164_2_1_DEVICE_ID, + .name = "qca6164 hw2.1", + .patch_load_addr = QCA6174_HW_2_1_PATCH_LOAD_ADDR, + .uart_pin = 6, + .otp_exe_param = 0, + .channel_counters_freq_hz = 88000, + .max_probe_resp_desc_thres = 0, + .fw = { + .dir = QCA6174_HW_2_1_FW_DIR, + .fw = QCA6174_HW_2_1_FW_FILE, + .otp = QCA6174_HW_2_1_OTP_FILE, + .board = QCA6174_HW_2_1_BOARD_DATA_FILE, + .board_size = QCA6174_BOARD_DATA_SZ, + .board_ext_size = QCA6174_BOARD_EXT_DATA_SZ, + }, + }, + { + .id = QCA6174_HW_2_1_VERSION, + .dev_id = QCA6174_2_1_DEVICE_ID, .name = "qca6174 hw2.1", .patch_load_addr = QCA6174_HW_2_1_PATCH_LOAD_ADDR, .uart_pin = 6, @@ -86,6 +106,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { }, { .id = QCA6174_HW_3_0_VERSION, + .dev_id = QCA6174_2_1_DEVICE_ID, .name = "qca6174 hw3.0", .patch_load_addr = QCA6174_HW_3_0_PATCH_LOAD_ADDR, .uart_pin = 6, @@ -103,6 +124,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { }, { .id = QCA6174_HW_3_2_VERSION, + .dev_id = QCA6174_2_1_DEVICE_ID, .name = "qca6174 hw3.2", .patch_load_addr = QCA6174_HW_3_0_PATCH_LOAD_ADDR, .uart_pin = 6, @@ -121,6 +143,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { }, { .id = QCA99X0_HW_2_0_DEV_VERSION, + .dev_id = QCA99X0_2_0_DEVICE_ID, .name = "qca99x0 hw2.0", .patch_load_addr = QCA99X0_HW_2_0_PATCH_LOAD_ADDR, .uart_pin = 7, @@ -139,6 +162,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { }, { .id = QCA9377_HW_1_1_DEV_VERSION, + .dev_id = QCA9377_1_0_DEVICE_ID, .name = "qca9377 hw1.1", .patch_load_addr = QCA9377_HW_1_0_PATCH_LOAD_ADDR, .uart_pin = 6, @@ -1265,7 +1289,8 @@ static int ath10k_init_hw_params(struct ath10k *ar) for (i = 0; i < ARRAY_SIZE(ath10k_hw_params_list); i++) { hw_params = &ath10k_hw_params_list[i]; - if (hw_params->id == ar->target_version) + if (hw_params->id == ar->target_version && + hw_params->dev_id == ar->dev_id) break; } diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h index 4a2301589902..622d3816eaf4 100644 --- a/drivers/net/wireless/ath/ath10k/core.h +++ b/drivers/net/wireless/ath/ath10k/core.h @@ -636,6 +636,7 @@ struct ath10k { struct ath10k_hw_params { u32 id; + u16 dev_id; const char *name; u32 patch_load_addr; int uart_pin; diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h index 01bf2244f54c..13aacbdc98e6 100644 --- a/drivers/net/wireless/ath/ath10k/hw.h +++ b/drivers/net/wireless/ath/ath10k/hw.h @@ -22,6 +22,12 @@ #define ATH10K_FW_DIR "ath10k" +#define QCA988X_2_0_DEVICE_ID (0x003c) +#define QCA6164_2_1_DEVICE_ID (0x0041) +#define QCA6174_2_1_DEVICE_ID (0x003e) +#define QCA99X0_2_0_DEVICE_ID (0x0040) +#define QCA9377_1_0_DEVICE_ID (0x0042) + /* QCA988X 1.0 definitions (unsupported) */ #define QCA988X_HW_1_0_CHIP_ID_REV 0x0 diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c index c444b43f183d..14dce2a1b39f 100644 --- a/drivers/net/wireless/ath/ath10k/pci.c +++ b/drivers/net/wireless/ath/ath10k/pci.c @@ -57,12 +57,6 @@ MODULE_PARM_DESC(reset_mode, "0: auto, 1: warm only (default: 0)"); #define ATH10K_PCI_TARGET_WAIT 3000 #define ATH10K_PCI_NUM_WARM_RESET_ATTEMPTS 3 -#define QCA988X_2_0_DEVICE_ID (0x003c) -#define QCA6164_2_1_DEVICE_ID (0x0041) -#define QCA6174_2_1_DEVICE_ID (0x003e) -#define QCA99X0_2_0_DEVICE_ID (0x0040) -#define QCA9377_1_0_DEVICE_ID (0x0042) - static const struct pci_device_id ath10k_pci_id_table[] = { { PCI_VDEVICE(ATHEROS, QCA988X_2_0_DEVICE_ID) }, /* PCI-E QCA988X V2 */ { PCI_VDEVICE(ATHEROS, QCA6164_2_1_DEVICE_ID) }, /* PCI-E QCA6164 V2.1 */ -- cgit v1.2.3 From 034074f3a889b69325326e612b7b37f3492a65ad Mon Sep 17 00:00:00 2001 From: Bartosz Markowski Date: Thu, 5 Nov 2015 09:50:43 +0100 Subject: ath10k: add QCA9377 hw1.0 support Add new BMI target version and chip id revision. Register it on supported chips list. Signed-off-by: Bartosz Markowski Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/core.c | 18 ++++++++++++++++++ drivers/net/wireless/ath/ath10k/hw.h | 3 +++ drivers/net/wireless/ath/ath10k/pci.c | 2 ++ 3 files changed, 23 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c index b80b8f372354..0947cc271e69 100644 --- a/drivers/net/wireless/ath/ath10k/core.c +++ b/drivers/net/wireless/ath/ath10k/core.c @@ -160,6 +160,24 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { .board_ext_size = QCA99X0_BOARD_EXT_DATA_SZ, }, }, + { + .id = QCA9377_HW_1_0_DEV_VERSION, + .dev_id = QCA9377_1_0_DEVICE_ID, + .name = "qca9377 hw1.0", + .patch_load_addr = QCA9377_HW_1_0_PATCH_LOAD_ADDR, + .uart_pin = 6, + .otp_exe_param = 0, + .channel_counters_freq_hz = 88000, + .max_probe_resp_desc_thres = 0, + .fw = { + .dir = QCA9377_HW_1_0_FW_DIR, + .fw = QCA9377_HW_1_0_FW_FILE, + .otp = QCA9377_HW_1_0_OTP_FILE, + .board = QCA9377_HW_1_0_BOARD_DATA_FILE, + .board_size = QCA9377_BOARD_DATA_SZ, + .board_ext_size = QCA9377_BOARD_EXT_DATA_SZ, + }, + }, { .id = QCA9377_HW_1_1_DEV_VERSION, .dev_id = QCA9377_1_0_DEVICE_ID, diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h index 13aacbdc98e6..713c2bcea178 100644 --- a/drivers/net/wireless/ath/ath10k/hw.h +++ b/drivers/net/wireless/ath/ath10k/hw.h @@ -48,6 +48,8 @@ #define QCA6174_HW_3_0_VERSION 0x05020000 #define QCA6174_HW_3_2_VERSION 0x05030000 +/* QCA9377 target BMI version signatures */ +#define QCA9377_HW_1_0_DEV_VERSION 0x05020000 #define QCA9377_HW_1_1_DEV_VERSION 0x05020001 enum qca6174_pci_rev { @@ -69,6 +71,7 @@ enum qca6174_chip_id_rev { }; enum qca9377_chip_id_rev { + QCA9377_HW_1_0_CHIP_ID_REV = 0x0, QCA9377_HW_1_1_CHIP_ID_REV = 0x1, }; diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c index 14dce2a1b39f..679a3ebb34af 100644 --- a/drivers/net/wireless/ath/ath10k/pci.c +++ b/drivers/net/wireless/ath/ath10k/pci.c @@ -86,6 +86,8 @@ static const struct ath10k_pci_supp_chip ath10k_pci_supp_chips[] = { { QCA6174_2_1_DEVICE_ID, QCA6174_HW_3_2_CHIP_ID_REV }, { QCA99X0_2_0_DEVICE_ID, QCA99X0_HW_2_0_CHIP_ID_REV }, + + { QCA9377_1_0_DEVICE_ID, QCA9377_HW_1_0_CHIP_ID_REV }, { QCA9377_1_0_DEVICE_ID, QCA9377_HW_1_1_CHIP_ID_REV }, }; -- cgit v1.2.3 From 2727a743e9eeb3d4063d4077afee3fd2a5e198ca Mon Sep 17 00:00:00 2001 From: Ryan Hsu Date: Thu, 5 Nov 2015 18:44:27 -0800 Subject: ath10k: override CE5 configuration for QCA6147 device Commit a70587b3389a ("ath10k: configure copy engine 5 for HTT messages") introduced to use the unused CE5 for target to host message. For the device like QCA6174, CE5 already assigned for other feature. So for QCA6174, override the CE5 configuration and use the CE1 instead. This patch is based on Rajkumar's earlier patch. Fixes: a70587b3389a ("ath10k: configure copy engine 5 for HTT messages") Signed-off-by: Ryan Hsu Signed-off-by: Rajkumar Manoharan Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/pci.c | 32 +++++++++++++++++++++++++++++--- 1 file changed, 29 insertions(+), 3 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c index 679a3ebb34af..0ad3dd139bf5 100644 --- a/drivers/net/wireless/ath/ath10k/pci.c +++ b/drivers/net/wireless/ath/ath10k/pci.c @@ -108,7 +108,7 @@ static void ath10k_pci_htc_rx_cb(struct ath10k_ce_pipe *ce_state); static void ath10k_pci_htt_tx_cb(struct ath10k_ce_pipe *ce_state); static void ath10k_pci_htt_rx_cb(struct ath10k_ce_pipe *ce_state); -static const struct ce_attr host_ce_config_wlan[] = { +static struct ce_attr host_ce_config_wlan[] = { /* CE0: host->target HTC control and raw streams */ { .flags = CE_ATTR_FLAGS, @@ -213,7 +213,7 @@ static const struct ce_attr host_ce_config_wlan[] = { }; /* Target firmware's Copy Engine configuration. */ -static const struct ce_pipe_config target_ce_config_wlan[] = { +static struct ce_pipe_config target_ce_config_wlan[] = { /* CE0: host->target HTC control and raw streams */ { .pipenum = __cpu_to_le32(0), @@ -326,7 +326,7 @@ static const struct ce_pipe_config target_ce_config_wlan[] = { * This table is derived from the CE_PCI TABLE, above. * It is passed to the Target at startup for use by firmware. */ -static const struct service_to_pipe target_service_to_ce_map_wlan[] = { +static struct service_to_pipe target_service_to_ce_map_wlan[] = { { __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_VO), __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */ @@ -2023,6 +2023,29 @@ static int ath10k_pci_init_config(struct ath10k *ar) return 0; } +static void ath10k_pci_override_ce_config(struct ath10k *ar) +{ + struct ce_attr *attr; + struct ce_pipe_config *config; + + /* For QCA6174 we're overriding the Copy Engine 5 configuration, + * since it is currently used for other feature. + */ + + /* Override Host's Copy Engine 5 configuration */ + attr = &host_ce_config_wlan[5]; + attr->src_sz_max = 0; + attr->dest_nentries = 0; + + /* Override Target firmware's Copy Engine configuration */ + config = &target_ce_config_wlan[5]; + config->pipedir = __cpu_to_le32(PIPEDIR_OUT); + config->nbytes_max = __cpu_to_le32(2048); + + /* Map from service/endpoint to Copy Engine */ + target_service_to_ce_map_wlan[15].pipenum = __cpu_to_le32(1); +} + static int ath10k_pci_alloc_pipes(struct ath10k *ar) { struct ath10k_pci *ar_pci = ath10k_pci_priv(ar); @@ -3016,6 +3039,9 @@ static int ath10k_pci_probe(struct pci_dev *pdev, goto err_core_destroy; } + if (QCA_REV_6174(ar)) + ath10k_pci_override_ce_config(ar); + ret = ath10k_pci_alloc_pipes(ar); if (ret) { ath10k_err(ar, "failed to allocate copy engine pipes: %d\n", -- cgit v1.2.3 From 4ab75944c4b324c1f5f01dbd4c4d122d2b9da187 Mon Sep 17 00:00:00 2001 From: Oren Givon Date: Wed, 28 Oct 2015 12:32:20 +0200 Subject: iwlwifi: Add new PCI IDs for the 8260 series Add some new PCI IDs for the 8260 series which were missing. The following sub-system IDs were added: 0x0130, 0x1130, 0x0132, 0x1132, 0x1150, 0x8110, 0x9110, 0x8130, 0x9130, 0x8132, 0x9132, 0x8150, 0x9150, 0x0044, 0x0930 CC: [4.1+] Signed-off-by: Oren Givon Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/pcie/drv.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c index 644b58bc5226..639761fb2bfb 100644 --- a/drivers/net/wireless/iwlwifi/pcie/drv.c +++ b/drivers/net/wireless/iwlwifi/pcie/drv.c @@ -423,14 +423,21 @@ static const struct pci_device_id iwl_hw_card_ids[] = { /* 8000 Series */ {IWL_PCI_DEVICE(0x24F3, 0x0010, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x1010, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x0130, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x1130, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x0132, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x1132, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x0110, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x01F0, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x0012, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x1012, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x1110, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x0050, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x0250, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x1050, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x0150, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x1150, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F4, 0x0030, iwl8260_2ac_cfg)}, - {IWL_PCI_DEVICE(0x24F4, 0x1130, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F4, 0x1030, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0xC010, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0xC110, iwl8260_2ac_cfg)}, @@ -438,18 +445,28 @@ static const struct pci_device_id iwl_hw_card_ids[] = { {IWL_PCI_DEVICE(0x24F3, 0xC050, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0xD050, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x8010, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x8110, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x9010, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x9110, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F4, 0x8030, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F4, 0x9030, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x8130, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x9130, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x8132, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x9132, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x8050, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x8150, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x9050, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x9150, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x0004, iwl8260_2n_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x0044, iwl8260_2n_cfg)}, {IWL_PCI_DEVICE(0x24F5, 0x0010, iwl4165_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F6, 0x0030, iwl4165_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x0810, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x0910, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x0850, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x0950, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x0930, iwl8260_2ac_cfg)}, #endif /* CONFIG_IWLMVM */ {0} -- cgit v1.2.3 From 5fd6705c366f885471b979de95ba14411e812395 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Sun, 15 Nov 2015 11:23:39 +0200 Subject: iwlwifi: bump firmware API to 19 This firmware will be the first firmware to support 3168. It hasn't been released yet. Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/iwl-7000.c | 2 +- drivers/net/wireless/iwlwifi/iwl-8000.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/iwlwifi/iwl-7000.c b/drivers/net/wireless/iwlwifi/iwl-7000.c index 1a73c7a1da77..bf88ec3a65fa 100644 --- a/drivers/net/wireless/iwlwifi/iwl-7000.c +++ b/drivers/net/wireless/iwlwifi/iwl-7000.c @@ -69,7 +69,7 @@ #include "iwl-agn-hw.h" /* Highest firmware API version supported */ -#define IWL7260_UCODE_API_MAX 17 +#define IWL7260_UCODE_API_MAX 19 /* Oldest version we won't warn about */ #define IWL7260_UCODE_API_OK 13 diff --git a/drivers/net/wireless/iwlwifi/iwl-8000.c b/drivers/net/wireless/iwlwifi/iwl-8000.c index 0116e5a4c393..9bcc0bf937d8 100644 --- a/drivers/net/wireless/iwlwifi/iwl-8000.c +++ b/drivers/net/wireless/iwlwifi/iwl-8000.c @@ -69,7 +69,7 @@ #include "iwl-agn-hw.h" /* Highest firmware API version supported */ -#define IWL8000_UCODE_API_MAX 17 +#define IWL8000_UCODE_API_MAX 19 /* Oldest version we won't warn about */ #define IWL8000_UCODE_API_OK 13 -- cgit v1.2.3 From d6ee54a9d7c807cdb8eb77d7f019cce344c2162c Mon Sep 17 00:00:00 2001 From: Luca Coelho Date: Tue, 10 Nov 2015 22:13:43 +0200 Subject: iwlwifi: mvm: don't overwrite the key indices in D3 entry When entering D3, we need to use hardcoded key indices because the firmware requires that. To do so, we are overwriting the HW key index in the keyconf structure, which makes it impossible to reuse the indices that were used before entering D3. Additionally, we overwrite all the non-PTK keys with index 1, because the firmware only allows one non-PTK key to be set. This is bad, because when we resume, we may try to set more than one key with index 1, which will obviously fail. To fix this, allow the callers to set a pre-defined index to use in iwl_mvm_set_sta_key() instead of relying on the hw_key_idx value from the keyconf struct (which requires overwriting it). In normal cases, the caller can pass STA_KEY_IDX_INVALID, which will cause a new key offset to be chosen. During HW_RESTART, we pass the offset that is in use. And during D3 entry, we pass the hardcoded indices we need to use. Additionally, don't clear the fw_key_table in D3 entry, so that the flags are still set with the pre-D3 values when exiting D3. fixes=I3165c22362483f0152d9ec1d2a987fb5529727c1 Fixes: b546dcd6b742 ("iwlwifi: mvm: don't reset key index on HW restart") Signed-off-by: Luca Coelho Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/d3.c | 8 ++---- drivers/net/wireless/iwlwifi/mvm/mac80211.c | 11 ++++++-- drivers/net/wireless/iwlwifi/mvm/sta.c | 44 ++++++++++++++++++----------- drivers/net/wireless/iwlwifi/mvm/sta.h | 4 +-- 4 files changed, 39 insertions(+), 28 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c index 85ae902df7c0..29ae58ebf223 100644 --- a/drivers/net/wireless/iwlwifi/mvm/d3.c +++ b/drivers/net/wireless/iwlwifi/mvm/d3.c @@ -309,9 +309,9 @@ static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw, * to transmit packets to the AP, i.e. the PTK. */ if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { - key->hw_key_idx = 0; mvm->ptk_ivlen = key->iv_len; mvm->ptk_icvlen = key->icv_len; + ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 0); } else { /* * firmware only supports TSC/RSC for a single key, @@ -319,12 +319,11 @@ static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw, * with new ones -- this relies on mac80211 doing * list_add_tail(). */ - key->hw_key_idx = 1; mvm->gtk_ivlen = key->iv_len; mvm->gtk_icvlen = key->icv_len; + ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 1); } - ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, true); data->error = ret != 0; out_unlock: mutex_unlock(&mvm->mutex); @@ -772,9 +771,6 @@ static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm) */ set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); - /* We reprogram keys and shouldn't allocate new key indices */ - memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); - mvm->ptk_ivlen = 0; mvm->ptk_icvlen = 0; mvm->ptk_ivlen = 0; diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c index 1fb684693040..e88afac51c5d 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c @@ -2941,6 +2941,7 @@ static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); int ret; + u8 key_offset; if (iwlwifi_mod_params.sw_crypto) { IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); @@ -3006,10 +3007,14 @@ static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, break; } + /* in HW restart reuse the index, otherwise request a new one */ + if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) + key_offset = key->hw_key_idx; + else + key_offset = STA_KEY_IDX_INVALID; + IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); - ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, - test_bit(IWL_MVM_STATUS_IN_HW_RESTART, - &mvm->status)); + ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); if (ret) { IWL_WARN(mvm, "set key failed\n"); /* diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c index 300a249486e4..4e260083b6a0 100644 --- a/drivers/net/wireless/iwlwifi/mvm/sta.c +++ b/drivers/net/wireless/iwlwifi/mvm/sta.c @@ -1227,7 +1227,8 @@ static u8 iwl_mvm_get_key_sta_id(struct ieee80211_vif *vif, static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvm_sta, struct ieee80211_key_conf *keyconf, bool mcast, - u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags) + u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags, + u8 key_offset) { struct iwl_mvm_add_sta_key_cmd cmd = {}; __le16 key_flags; @@ -1269,7 +1270,7 @@ static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, if (mcast) key_flags |= cpu_to_le16(STA_KEY_MULTICAST); - cmd.key_offset = keyconf->hw_key_idx; + cmd.key_offset = key_offset; cmd.key_flags = key_flags; cmd.sta_id = sta_id; @@ -1360,6 +1361,7 @@ static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct ieee80211_key_conf *keyconf, + u8 key_offset, bool mcast) { struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); @@ -1375,17 +1377,17 @@ static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm, ieee80211_get_key_rx_seq(keyconf, 0, &seq); ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); ret = iwl_mvm_send_sta_key(mvm, mvm_sta, keyconf, mcast, - seq.tkip.iv32, p1k, 0); + seq.tkip.iv32, p1k, 0, key_offset); break; case WLAN_CIPHER_SUITE_CCMP: case WLAN_CIPHER_SUITE_WEP40: case WLAN_CIPHER_SUITE_WEP104: ret = iwl_mvm_send_sta_key(mvm, mvm_sta, keyconf, mcast, - 0, NULL, 0); + 0, NULL, 0, key_offset); break; default: ret = iwl_mvm_send_sta_key(mvm, mvm_sta, keyconf, mcast, - 0, NULL, 0); + 0, NULL, 0, key_offset); } return ret; @@ -1433,7 +1435,7 @@ int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct ieee80211_key_conf *keyconf, - bool have_key_offset) + u8 key_offset) { bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); u8 sta_id; @@ -1470,18 +1472,25 @@ int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, if (WARN_ON_ONCE(iwl_mvm_sta_from_mac80211(sta)->vif != vif)) return -EINVAL; - if (!have_key_offset) { - /* - * The D3 firmware hardcodes the PTK offset to 0, so we have to - * configure it there. As a result, this workaround exists to - * let the caller set the key offset (hw_key_idx), see d3.c. - */ - keyconf->hw_key_idx = iwl_mvm_set_fw_key_idx(mvm); - if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) + /* If the key_offset is not pre-assigned, we need to find a + * new offset to use. In normal cases, the offset is not + * pre-assigned, but during HW_RESTART we want to reuse the + * same indices, so we pass them when this function is called. + * + * In D3 entry, we need to hardcoded the indices (because the + * firmware hardcodes the PTK offset to 0). In this case, we + * need to make sure we don't overwrite the hw_key_idx in the + * keyconf structure, because otherwise we cannot configure + * the original ones back when resuming. + */ + if (key_offset == STA_KEY_IDX_INVALID) { + key_offset = iwl_mvm_set_fw_key_idx(mvm); + if (key_offset == STA_KEY_IDX_INVALID) return -ENOSPC; + keyconf->hw_key_idx = key_offset; } - ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, mcast); + ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, key_offset, mcast); if (ret) { __clear_bit(keyconf->hw_key_idx, mvm->fw_key_table); goto end; @@ -1495,7 +1504,8 @@ int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, */ if (keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) { - ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, !mcast); + ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, + key_offset, !mcast); if (ret) { __clear_bit(keyconf->hw_key_idx, mvm->fw_key_table); __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); @@ -1602,7 +1612,7 @@ void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, mvm_sta = iwl_mvm_sta_from_mac80211(sta); iwl_mvm_send_sta_key(mvm, mvm_sta, keyconf, mcast, - iv32, phase1key, CMD_ASYNC); + iv32, phase1key, CMD_ASYNC, keyconf->hw_key_idx); rcu_read_unlock(); } diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.h b/drivers/net/wireless/iwlwifi/mvm/sta.h index eedb215eba3f..0631cc0a6d3c 100644 --- a/drivers/net/wireless/iwlwifi/mvm/sta.h +++ b/drivers/net/wireless/iwlwifi/mvm/sta.h @@ -365,8 +365,8 @@ int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct ieee80211_sta *sta, - struct ieee80211_key_conf *key, - bool have_key_offset); + struct ieee80211_key_conf *keyconf, + u8 key_offset); int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct ieee80211_sta *sta, -- cgit v1.2.3 From 9513c5e18a0dc55a1fc9c890715098ba2315830b Mon Sep 17 00:00:00 2001 From: Avri Altman Date: Mon, 19 Oct 2015 16:29:11 +0200 Subject: iwlwifi: mvm: Avoid dereferencing sta if it was already flushed Be a little bit more careful when dereferencing sta on key removal, As it might already get flushed on other thread. Signed-off-by: Avri Altman Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/sta.c | 44 ++++++++++++++++------------------ 1 file changed, 20 insertions(+), 24 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c index 4e260083b6a0..354acbde088e 100644 --- a/drivers/net/wireless/iwlwifi/mvm/sta.c +++ b/drivers/net/wireless/iwlwifi/mvm/sta.c @@ -1201,7 +1201,8 @@ static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm) return max_offs; } -static u8 iwl_mvm_get_key_sta_id(struct ieee80211_vif *vif, +static u8 iwl_mvm_get_key_sta_id(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, struct ieee80211_sta *sta) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); @@ -1218,8 +1219,21 @@ static u8 iwl_mvm_get_key_sta_id(struct ieee80211_vif *vif, * station ID, then use AP's station ID. */ if (vif->type == NL80211_IFTYPE_STATION && - mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) - return mvmvif->ap_sta_id; + mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { + u8 sta_id = mvmvif->ap_sta_id; + + sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], + lockdep_is_held(&mvm->mutex)); + /* + * It is possible that the 'sta' parameter is NULL, + * for example when a GTK is removed - the sta_id will then + * be the AP ID, and no station was passed by mac80211. + */ + if (IS_ERR_OR_NULL(sta)) + return IWL_MVM_STATION_COUNT; + + return sta_id; + } return IWL_MVM_STATION_COUNT; } @@ -1445,7 +1459,7 @@ int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, lockdep_assert_held(&mvm->mutex); /* Get the station id from the mvm local station table */ - sta_id = iwl_mvm_get_key_sta_id(vif, sta); + sta_id = iwl_mvm_get_key_sta_id(mvm, vif, sta); if (sta_id == IWL_MVM_STATION_COUNT) { IWL_ERR(mvm, "Failed to find station id\n"); return -EINVAL; @@ -1531,7 +1545,7 @@ int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, lockdep_assert_held(&mvm->mutex); /* Get the station id from the mvm local station table */ - sta_id = iwl_mvm_get_key_sta_id(vif, sta); + sta_id = iwl_mvm_get_key_sta_id(mvm, vif, sta); IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n", keyconf->keyidx, sta_id); @@ -1557,24 +1571,6 @@ int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, return 0; } - /* - * It is possible that the 'sta' parameter is NULL, and thus - * there is a need to retrieve the sta from the local station table, - * for example when a GTK is removed (where the sta_id will then be - * the AP ID, and no station was passed by mac80211.) - */ - if (!sta) { - sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], - lockdep_is_held(&mvm->mutex)); - if (!sta) { - IWL_ERR(mvm, "Invalid station id\n"); - return -EINVAL; - } - } - - if (WARN_ON_ONCE(iwl_mvm_sta_from_mac80211(sta)->vif != vif)) - return -EINVAL; - ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); if (ret) return ret; @@ -1594,7 +1590,7 @@ void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, u16 *phase1key) { struct iwl_mvm_sta *mvm_sta; - u8 sta_id = iwl_mvm_get_key_sta_id(vif, sta); + u8 sta_id = iwl_mvm_get_key_sta_id(mvm, vif, sta); bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); if (WARN_ON_ONCE(sta_id == IWL_MVM_STATION_COUNT)) -- cgit v1.2.3 From 6419fdbb6f90e147690f8833cba59d289d613da5 Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Wed, 11 Nov 2015 17:31:26 +0530 Subject: ath10k: poll HTT send completion when CE 5 is unused commit a70587b3389a ("ath10k: configure copy engine 5 for HTT messages") moved send completion polling under HTT Rx (CE 5) service routine. For QCA6174 based devices copy engine 1 (CE 1) is used for HTT Rx instead of CE 5. So send completion never be called. This is causing "failed to transmit packet, dropping: -105" errors. Fix this by processing send completion from CE 1 service routine instead of CE 5. Fixes: a70587b3389a ("ath10k: configure copy engine 5 for HTT messages") Tested-by: Ryan Hsu Signed-off-by: Rajkumar Manoharan Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/pci.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c index 0ad3dd139bf5..930785a724e1 100644 --- a/drivers/net/wireless/ath/ath10k/pci.c +++ b/drivers/net/wireless/ath/ath10k/pci.c @@ -107,6 +107,7 @@ static void ath10k_pci_htc_tx_cb(struct ath10k_ce_pipe *ce_state); static void ath10k_pci_htc_rx_cb(struct ath10k_ce_pipe *ce_state); static void ath10k_pci_htt_tx_cb(struct ath10k_ce_pipe *ce_state); static void ath10k_pci_htt_rx_cb(struct ath10k_ce_pipe *ce_state); +static void ath10k_pci_htt_htc_rx_cb(struct ath10k_ce_pipe *ce_state); static struct ce_attr host_ce_config_wlan[] = { /* CE0: host->target HTC control and raw streams */ @@ -124,7 +125,7 @@ static struct ce_attr host_ce_config_wlan[] = { .src_nentries = 0, .src_sz_max = 2048, .dest_nentries = 512, - .recv_cb = ath10k_pci_htc_rx_cb, + .recv_cb = ath10k_pci_htt_htc_rx_cb, }, /* CE2: target->host WMI */ @@ -1204,6 +1205,16 @@ static void ath10k_pci_htc_rx_cb(struct ath10k_ce_pipe *ce_state) ath10k_pci_process_rx_cb(ce_state, ath10k_htc_rx_completion_handler); } +static void ath10k_pci_htt_htc_rx_cb(struct ath10k_ce_pipe *ce_state) +{ + /* CE4 polling needs to be done whenever CE pipe which transports + * HTT Rx (target->host) is processed. + */ + ath10k_ce_per_engine_service(ce_state->ar, 4); + + ath10k_pci_process_rx_cb(ce_state, ath10k_htc_rx_completion_handler); +} + /* Called by lower (CE) layer when a send to HTT Target completes. */ static void ath10k_pci_htt_tx_cb(struct ath10k_ce_pipe *ce_state) { -- cgit v1.2.3 From eeec5d0ef7ee54a75e09e861c3cc44177b8752c7 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Tue, 10 Nov 2015 10:46:11 -0600 Subject: rtlwifi: rtl8821ae: Fix lockups on boot In commit 54328e64047a5 ("rtlwifi: rtl8821ae: Fix system lockups on boot"), an attempt was made to fix a regression introduced in commit 1277fa2ab2f9 ("rtlwifi: Remove the clear interrupt routine from all drivers"). Unfortunately, there were logic errors in that patch that prevented affected boxes from booting even after that patch was applied. The actual cause of the original problem is unknown as none of the developers have systems that are affected. Fixes: 54328e64047a ("rtlwifi: rtl8821ae: Fix system lockups on boot") Signed-off-by: Larry Finger Cc: Stable [V4.1+] Signed-off-by: Kalle Valo --- drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c | 2 +- drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c index 6e9418ed90c2..bbb789f8990b 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c @@ -2272,7 +2272,7 @@ void rtl8821ae_enable_interrupt(struct ieee80211_hw *hw) struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); - if (!rtlpci->int_clear) + if (rtlpci->int_clear) rtl8821ae_clear_interrupt(hw);/*clear it here first*/ rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] & 0xFFFFFFFF); diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c index 8ee141a55bc5..142bdff4ed60 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c @@ -448,7 +448,7 @@ MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 1)\n"); MODULE_PARM_DESC(msi, "Set to 1 to use MSI interrupts mode (default 1)\n"); MODULE_PARM_DESC(debug, "Set debug level (0-5) (default 0)"); MODULE_PARM_DESC(disable_watchdog, "Set to 1 to disable the watchdog (default 0)\n"); -MODULE_PARM_DESC(int_clear, "Set to 1 to disable interrupt clear before set (default 0)\n"); +MODULE_PARM_DESC(int_clear, "Set to 0 to disable interrupt clear before set (default 1)\n"); static SIMPLE_DEV_PM_OPS(rtlwifi_pm_ops, rtl_pci_suspend, rtl_pci_resume); -- cgit v1.2.3 From 6f97532ef05e49f1998a09f8359b83d00a7b3229 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Tue, 17 Nov 2015 14:24:27 -0800 Subject: fm10k: fix memory leak This was detected by Coverity. The function skb_cow_head leaves skb alone on failure, so caller needs to free. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/fm10k/fm10k_netdev.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c index 639263d5e833..7781e80896a6 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c @@ -627,8 +627,10 @@ static netdev_tx_t fm10k_xmit_frame(struct sk_buff *skb, struct net_device *dev) /* verify the skb head is not shared */ err = skb_cow_head(skb, 0); - if (err) + if (err) { + dev_kfree_skb(skb); return NETDEV_TX_OK; + } /* locate vlan header */ vhdr = (struct vlan_hdr *)(skb->data + ETH_HLEN); -- cgit v1.2.3 From 52d178516dcf61e7a59363a572458c830af6e520 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Tue, 17 Nov 2015 14:26:06 -0800 Subject: hdlc: fix null-deref on allocation failure If alloc_netdev() failed and return NULL, then the next instruction would dereference it. Found by Coverity. Compile tested only. Not sure if anyone still uses this driver (or the whole WAN subsystem). Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- drivers/net/wan/hdlc_fr.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wan/hdlc_fr.c b/drivers/net/wan/hdlc_fr.c index e92aaf615901..89541cc90e87 100644 --- a/drivers/net/wan/hdlc_fr.c +++ b/drivers/net/wan/hdlc_fr.c @@ -1075,11 +1075,10 @@ static int fr_add_pvc(struct net_device *frad, unsigned int dlci, int type) used = pvc_is_used(pvc); - if (type == ARPHRD_ETHER) { + if (type == ARPHRD_ETHER) dev = alloc_netdev(0, "pvceth%d", NET_NAME_UNKNOWN, ether_setup); - dev->priv_flags &= ~IFF_TX_SKB_SHARING; - } else + else dev = alloc_netdev(0, "pvc%d", NET_NAME_UNKNOWN, pvc_setup); if (!dev) { @@ -1088,9 +1087,10 @@ static int fr_add_pvc(struct net_device *frad, unsigned int dlci, int type) return -ENOBUFS; } - if (type == ARPHRD_ETHER) + if (type == ARPHRD_ETHER) { + dev->priv_flags &= ~IFF_TX_SKB_SHARING; eth_hw_addr_random(dev); - else { + } else { *(__be16*)dev->dev_addr = htons(dlci); dlci_to_q922(dev->broadcast, dlci); } -- cgit v1.2.3 From 0208e951d55c435137543e12d7ee795c3784713a Mon Sep 17 00:00:00 2001 From: Ben Pope Date: Tue, 17 Nov 2015 18:21:07 -0700 Subject: ethernet/atheros/alx: add Killer E2400 device ID This patch adds the PCI device ID (0xe0a1) and alx_pci_tbl entry for the Killer E2400 Ethernet controller, modeled after the Killer E2200 controller support (0xe091) already present in the alx driver. This patch was originally authored by Ben Pope, but it got held up by issues in the commit message, so I'm resubmitting it on his behalf. I've extensively used a kernel with this patch on a System76 serw9 laptop and am quite confident it works well (at least on the hardware I have available for testing). Note that as a favor to System76, Ubuntu has been carrying this as a sauce patch in their 4.2 based Wily kernel, which presumably has given it real-world testing on other E2400 equipped hardware (I don't know of any Ubuntu kernel bugs filed about it): https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1498633 Signed-off-by: Jason Gerard DeRose Signed-off-by: Ben Pope Signed-off-by: David S. Miller --- drivers/net/ethernet/atheros/alx/main.c | 2 ++ drivers/net/ethernet/atheros/alx/reg.h | 1 + 2 files changed, 3 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c index c8af3ce3ea38..bd377a6b067d 100644 --- a/drivers/net/ethernet/atheros/alx/main.c +++ b/drivers/net/ethernet/atheros/alx/main.c @@ -1534,6 +1534,8 @@ static const struct pci_device_id alx_pci_tbl[] = { .driver_data = ALX_DEV_QUIRK_MSI_INTX_DISABLE_BUG }, { PCI_VDEVICE(ATTANSIC, ALX_DEV_ID_E2200), .driver_data = ALX_DEV_QUIRK_MSI_INTX_DISABLE_BUG }, + { PCI_VDEVICE(ATTANSIC, ALX_DEV_ID_E2400), + .driver_data = ALX_DEV_QUIRK_MSI_INTX_DISABLE_BUG }, { PCI_VDEVICE(ATTANSIC, ALX_DEV_ID_AR8162), .driver_data = ALX_DEV_QUIRK_MSI_INTX_DISABLE_BUG }, { PCI_VDEVICE(ATTANSIC, ALX_DEV_ID_AR8171) }, diff --git a/drivers/net/ethernet/atheros/alx/reg.h b/drivers/net/ethernet/atheros/alx/reg.h index af006b44b2a6..0959e6824cb6 100644 --- a/drivers/net/ethernet/atheros/alx/reg.h +++ b/drivers/net/ethernet/atheros/alx/reg.h @@ -37,6 +37,7 @@ #define ALX_DEV_ID_AR8161 0x1091 #define ALX_DEV_ID_E2200 0xe091 +#define ALX_DEV_ID_E2400 0xe0a1 #define ALX_DEV_ID_AR8162 0x1090 #define ALX_DEV_ID_AR8171 0x10A1 #define ALX_DEV_ID_AR8172 0x10A0 -- cgit v1.2.3 From 022be25c2498e1baa82562aba9f3380b1ef70fa6 Mon Sep 17 00:00:00 2001 From: Punnaiah Choudary Kalluri Date: Wed, 18 Nov 2015 09:03:50 +0530 Subject: net: macb: Add support for sgmii phy interface This patch adds support for the sgmii phy interface. Signed-off-by: Punnaiah Choudary Kalluri Signed-off-by: David S. Miller --- drivers/net/ethernet/cadence/macb.c | 4 ++++ drivers/net/ethernet/cadence/macb.h | 5 +++++ 2 files changed, 9 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c index 88c1e1a834f8..169059c92f80 100644 --- a/drivers/net/ethernet/cadence/macb.c +++ b/drivers/net/ethernet/cadence/macb.c @@ -1682,6 +1682,8 @@ static void macb_init_hw(struct macb *bp) macb_set_hwaddr(bp); config = macb_mdc_clk_div(bp); + if (bp->phy_interface == PHY_INTERFACE_MODE_SGMII) + config |= GEM_BIT(SGMIIEN) | GEM_BIT(PCSSEL); config |= MACB_BF(RBOF, NET_IP_ALIGN); /* Make eth data aligned */ config |= MACB_BIT(PAE); /* PAuse Enable */ config |= MACB_BIT(DRFCS); /* Discard Rx FCS */ @@ -2416,6 +2418,8 @@ static int macb_init(struct platform_device *pdev) /* Set MII management clock divider */ val = macb_mdc_clk_div(bp); val |= macb_dbw(bp); + if (bp->phy_interface == PHY_INTERFACE_MODE_SGMII) + val |= GEM_BIT(SGMIIEN) | GEM_BIT(PCSSEL); macb_writel(bp, NCFGR, val); return 0; diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h index 6e1faea00ca8..d83b0db77821 100644 --- a/drivers/net/ethernet/cadence/macb.h +++ b/drivers/net/ethernet/cadence/macb.h @@ -215,12 +215,17 @@ /* GEM specific NCFGR bitfields. */ #define GEM_GBE_OFFSET 10 /* Gigabit mode enable */ #define GEM_GBE_SIZE 1 +#define GEM_PCSSEL_OFFSET 11 +#define GEM_PCSSEL_SIZE 1 #define GEM_CLK_OFFSET 18 /* MDC clock division */ #define GEM_CLK_SIZE 3 #define GEM_DBW_OFFSET 21 /* Data bus width */ #define GEM_DBW_SIZE 2 #define GEM_RXCOEN_OFFSET 24 #define GEM_RXCOEN_SIZE 1 +#define GEM_SGMIIEN_OFFSET 27 +#define GEM_SGMIIEN_SIZE 1 + /* Constants for data bus width. */ #define GEM_DBW32 0 /* 32 bit AMBA AHB data bus width */ -- cgit v1.2.3 From 508dc0648ca8a2d305faee472cea5e0be579014f Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Thu, 19 Nov 2015 01:39:51 +0300 Subject: ravb: fix WARNING in __free_irq() When the R8A7795 support was added to the driver, little attention was paid to the ravb_open() error path: free_irq() for the EMAC interrupt was called uncoditionally, unlike request_irq(), and in a wrong order as well... As a result, on the R-Car gen2 SoCs I started getting the following in case of a device opening error: WARNING: CPU: 0 PID: 1 at kernel/irq/manage.c:1448 __free_irq+0x8c/0x228() Trying to free already-free IRQ 0 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.4.0-rc1-dirty #1005 Hardware name: Generic R8A7791 (Flattened Device Tree) Backtrace: [] (dump_backtrace) from [] (show_stack+0x18/0x1c) r6:c063cdd6 r5:00000009 r4:00000000 r3:00204140 [] (show_stack) from [] (dump_stack+0x74/0x90) [] (dump_stack) from [] (warn_slowpath_common+0x8c/0xb8) r4:ef04fd38 r3:c0714770 [] (warn_slowpath_common) from [] (warn_slowpath_fmt+0x38/0x40) r8:ee8ad800 r7:ef0030a0 r6:00000000 r5:00000000 r4:ef003040 [] (warn_slowpath_fmt) from [] (__free_irq+0x8c/0x228) r3:00000000 r2:c063ce9f [] (__free_irq) from [] (free_irq+0x70/0xa4) r10:0000016b r8:00000000 r7:00000000 r6:ee8ad800 r5:00000000 r4:ef003040 [] (free_irq) from [] (ravb_open+0x224/0x274) r7:fffffffe r6:00000000 r5:fffffffe r4:ee8ad800 [] (ravb_open) from [] (__dev_open+0x84/0x104) r7:ee8ad830 r6:c0566334 r5:00000000 r4:ee8ad800 [] (__dev_open) from [] (__dev_change_flags+0x94/0x13c) r7:00001002 r6:00000001 r5:00001003 r4:ee8ad800 [] (__dev_change_flags) from [] (dev_change_flags+0x20/0x50) r7:c072e6e0 r6:00000138 r5:00001002 r4:ee8ad800 [] (dev_change_flags) from [] (ip_auto_config+0x174/0xfb8) r8:00001002 r7:c072e6e0 r6:c0703344 r5:00000001 r4:ee8ad800 r3:00000101 [] (ip_auto_config) from [] (do_one_initcall+0x100/0x1cc) r10:c06fb83c r9:00000000 r8:c06ebef8 r7:c0736000 r6:c0710918 r5:c0710918 r4:ef2f8f80 [] (do_one_initcall) from [] (kernel_init_freeable+0x11c/0x1 ec) r10:c06fb83c r9:00000000 r8:0000009a r7:c0736000 r6:c0706bf0 r5:c06fb834 r4:00000007 [] (kernel_init_freeable) from [] (kernel_init+0x14/0xec) r10:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0514c40 r4:c0736000 [] (kernel_init) from [] (ret_from_fork+0x14/0x3c) r4:00000000 r3:ef04e000 Fix up the free_irq() call order and add a new label on the error path. Fixes: 22d4df8ff3a3 ("ravb: Add support for r8a7795 SoC") Signed-off-by: Sergei Shtylyov Acked-by: Simon Horman Signed-off-by: David S. Miller --- drivers/net/ethernet/renesas/ravb_main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index ee8d1ec61fab..ed5da4d47668 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1225,7 +1225,7 @@ static int ravb_open(struct net_device *ndev) /* Device init */ error = ravb_dmac_init(ndev); if (error) - goto out_free_irq; + goto out_free_irq2; ravb_emac_init(ndev); /* Initialise PTP Clock driver */ @@ -1243,9 +1243,11 @@ static int ravb_open(struct net_device *ndev) out_ptp_stop: /* Stop PTP Clock driver */ ravb_ptp_stop(ndev); +out_free_irq2: + if (priv->chip_id == RCAR_GEN3) + free_irq(priv->emac_irq, ndev); out_free_irq: free_irq(ndev->irq, ndev); - free_irq(priv->emac_irq, ndev); out_napi_off: napi_disable(&priv->napi[RAVB_NC]); napi_disable(&priv->napi[RAVB_BE]); -- cgit v1.2.3 From 68242a5a1e2edce39b069385cbafb82304eac0f1 Mon Sep 17 00:00:00 2001 From: Bjørn Mork Date: Wed, 18 Nov 2015 21:13:07 +0100 Subject: net: qmi_wwan: add XS Stick W100-2 from 4G Systems MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Thomas reports " 4gsystems sells two total different LTE-surfsticks under the same name. .. The newer version of XS Stick W100 is from "omega" .. Under windows the driver switches to the same ID, and uses MI03\6 for network and MI01\6 for modem. .. echo "1c9e 9b01" > /sys/bus/usb/drivers/qmi_wwan/new_id echo "1c9e 9b01" > /sys/bus/usb-serial/drivers/option1/new_id T: Bus=01 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#= 4 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1c9e ProdID=9b01 Rev=02.32 S: Manufacturer=USB Modem S: Product=USB Modem S: SerialNumber= C: #Ifs= 5 Cfg#= 1 Atr=80 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option I: If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan I: If#= 4 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage Now all important things are there: wwp0s29f7u2i3 (net), ttyUSB2 (at), cdc-wdm0 (qmi), ttyUSB1 (at) There is also ttyUSB0, but it is not usable, at least not for at. The device works well with qmi and ModemManager-NetworkManager. " Reported-by: Thomas Schäfer Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/qmi_wwan.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net') diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 34799eaace41..9a5be8b85186 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -725,6 +725,7 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x2357, 0x9000, 4)}, /* TP-LINK MA260 */ {QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */ {QMI_FIXED_INTF(0x1bc7, 0x1201, 2)}, /* Telit LE920 */ + {QMI_FIXED_INTF(0x1c9e, 0x9b01, 3)}, /* XS Stick W100-2 from 4G Systems */ {QMI_FIXED_INTF(0x0b3c, 0xc000, 4)}, /* Olivetti Olicard 100 */ {QMI_FIXED_INTF(0x0b3c, 0xc001, 4)}, /* Olivetti Olicard 120 */ {QMI_FIXED_INTF(0x0b3c, 0xc002, 4)}, /* Olivetti Olicard 140 */ -- cgit v1.2.3 From 0db19b850468a24b70d8471f5ebe71f0a035bbab Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 18 Nov 2015 17:27:25 -0800 Subject: net: cpsw: Fix ethernet regression for dm814x Commit b6745f6e4e63 ("drivers: net: cpsw: davinci_emac: move reading mac id to common file") started using of_machine_is_compatible for detecting type but missed at dm8148 causing Ethernet to stop working. Let's fix the issue by adding handling for dm814x. Cc: Mugunthan V N Signed-off-by: Tony Lindgren Acked-by: Mugunthnan V N Signed-off-by: David S. Miller --- drivers/net/ethernet/ti/cpsw-common.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/ti/cpsw-common.c b/drivers/net/ethernet/ti/cpsw-common.c index c08be62bceba..1562ab4151e1 100644 --- a/drivers/net/ethernet/ti/cpsw-common.c +++ b/drivers/net/ethernet/ti/cpsw-common.c @@ -78,6 +78,9 @@ static int cpsw_am33xx_cm_get_macid(struct device *dev, u16 offset, int slave, int ti_cm_get_macid(struct device *dev, int slave, u8 *mac_addr) { + if (of_machine_is_compatible("ti,dm8148")) + return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr); + if (of_machine_is_compatible("ti,am33xx")) return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr); -- cgit v1.2.3 From 425d3d83707d378d97d1f7d460ce3083a1948c20 Mon Sep 17 00:00:00 2001 From: Yuval Mintz Date: Thu, 19 Nov 2015 11:56:51 +0200 Subject: bnx2x: Fix vxlan removal Commmit ac7eccd4d48fc "bnx2x: track vxlan port count" contains a bug - Instead of achieving the required goal, vxlan configuration would not be removed since we're decrementing the port instead of the counter. CC: Jiri Benc Signed-off-by: Yuval Mintz Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index c9b036789184..2e611dc5f162 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -10139,8 +10139,8 @@ static void __bnx2x_del_vxlan_port(struct bnx2x *bp, u16 port) DP(BNX2X_MSG_SP, "Invalid vxlan port\n"); return; } - bp->vxlan_dst_port--; - if (bp->vxlan_dst_port) + bp->vxlan_dst_port_count--; + if (bp->vxlan_dst_port_count) return; if (netif_running(bp->dev)) { -- cgit v1.2.3 From de92718883ddbcd11b738d36ffcf57617b97fa12 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 19 Nov 2015 11:42:26 +0100 Subject: net: tulip: turn compile-time warning into dev_warn() The tulip driver causes annoying build-time warnings for allmodconfig builds for all recent architectures: dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! This is the last remaining warning for arm64, and I'd like to get rid of it. We don't really know the cache line size, architecturally it would be at least 16 bytes, but all implementations I found have 64 or 128 bytes. Configuring tulip for 32-byte lines as we do on ARM32 seems to be the safe but slow default, and nobody who cares about performance these days would use a tulip chip anyway, so we can just use that. To save the next person the job of trying to find out what this is for and picking a default for their architecture just to kill off the warning, I'm now removing the preprocessor #warning and turning it into a pr_warn or dev_warn that prints the equivalent information when the driver gets loaded. Signed-off-by: Arnd Bergmann Acked-by: Grant Grundler Signed-off-by: David S. Miller --- drivers/net/ethernet/dec/tulip/tulip_core.c | 9 +++++++-- drivers/net/ethernet/dec/tulip/winbond-840.c | 2 +- 2 files changed, 8 insertions(+), 3 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/dec/tulip/tulip_core.c b/drivers/net/ethernet/dec/tulip/tulip_core.c index ed41559bae77..b553409e04ad 100644 --- a/drivers/net/ethernet/dec/tulip/tulip_core.c +++ b/drivers/net/ethernet/dec/tulip/tulip_core.c @@ -98,8 +98,7 @@ static int csr0 = 0x01A00000 | 0x4800; #elif defined(__mips__) static int csr0 = 0x00200000 | 0x4000; #else -#warning Processor architecture undefined! -static int csr0 = 0x00A00000 | 0x4800; +static int csr0; #endif /* Operational parameters that usually are not changed. */ @@ -1982,6 +1981,12 @@ static int __init tulip_init (void) pr_info("%s", version); #endif + if (!csr0) { + pr_warn("tulip: unknown CPU architecture, using default csr0\n"); + /* default to 8 longword cache line alignment */ + csr0 = 0x00A00000 | 0x4800; + } + /* copy module parms into globals */ tulip_rx_copybreak = rx_copybreak; tulip_max_interrupt_work = max_interrupt_work; diff --git a/drivers/net/ethernet/dec/tulip/winbond-840.c b/drivers/net/ethernet/dec/tulip/winbond-840.c index 9beb3d34d4ba..3c0e4d5c5fef 100644 --- a/drivers/net/ethernet/dec/tulip/winbond-840.c +++ b/drivers/net/ethernet/dec/tulip/winbond-840.c @@ -907,7 +907,7 @@ static void init_registers(struct net_device *dev) #elif defined(CONFIG_SPARC) || defined (CONFIG_PARISC) || defined(CONFIG_ARM) i |= 0x4800; #else -#warning Processor architecture undefined + dev_warn(&dev->dev, "unknown CPU architecture, using default csr0 setting\n"); i |= 0x4800; #endif iowrite32(i, ioaddr + PCIBusCfg); -- cgit v1.2.3 From 52dfc8301248f5008d64a680e832e2f99c55ec9a Mon Sep 17 00:00:00 2001 From: Måns Rullgård Date: Thu, 19 Nov 2015 13:02:59 +0000 Subject: net: ethernet: add driver for Aurora VLSI NB8800 Ethernet controller This adds a driver for the Aurora VLSI NB8800 Ethernet controller. It is an almost complete rewrite of a driver originally found in a Sigma Designs 2.6.22 tree. Signed-off-by: Mans Rullgard Signed-off-by: David S. Miller --- drivers/net/ethernet/Kconfig | 1 + drivers/net/ethernet/Makefile | 1 + drivers/net/ethernet/aurora/Kconfig | 20 + drivers/net/ethernet/aurora/Makefile | 1 + drivers/net/ethernet/aurora/nb8800.c | 1552 ++++++++++++++++++++++++++++++++++ drivers/net/ethernet/aurora/nb8800.h | 316 +++++++ 6 files changed, 1891 insertions(+) create mode 100644 drivers/net/ethernet/aurora/Kconfig create mode 100644 drivers/net/ethernet/aurora/Makefile create mode 100644 drivers/net/ethernet/aurora/nb8800.c create mode 100644 drivers/net/ethernet/aurora/nb8800.h (limited to 'drivers/net') diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig index 955d06b9cdba..31c5e476fd64 100644 --- a/drivers/net/ethernet/Kconfig +++ b/drivers/net/ethernet/Kconfig @@ -29,6 +29,7 @@ source "drivers/net/ethernet/apm/Kconfig" source "drivers/net/ethernet/apple/Kconfig" source "drivers/net/ethernet/arc/Kconfig" source "drivers/net/ethernet/atheros/Kconfig" +source "drivers/net/ethernet/aurora/Kconfig" source "drivers/net/ethernet/cadence/Kconfig" source "drivers/net/ethernet/adi/Kconfig" source "drivers/net/ethernet/broadcom/Kconfig" diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile index 4a2ee98738f0..071f84eb6f3f 100644 --- a/drivers/net/ethernet/Makefile +++ b/drivers/net/ethernet/Makefile @@ -15,6 +15,7 @@ obj-$(CONFIG_NET_XGENE) += apm/ obj-$(CONFIG_NET_VENDOR_APPLE) += apple/ obj-$(CONFIG_NET_VENDOR_ARC) += arc/ obj-$(CONFIG_NET_VENDOR_ATHEROS) += atheros/ +obj-$(CONFIG_NET_VENDOR_AURORA) += aurora/ obj-$(CONFIG_NET_CADENCE) += cadence/ obj-$(CONFIG_NET_BFIN) += adi/ obj-$(CONFIG_NET_VENDOR_BROADCOM) += broadcom/ diff --git a/drivers/net/ethernet/aurora/Kconfig b/drivers/net/ethernet/aurora/Kconfig new file mode 100644 index 000000000000..a3c7106fdf85 --- /dev/null +++ b/drivers/net/ethernet/aurora/Kconfig @@ -0,0 +1,20 @@ +config NET_VENDOR_AURORA + bool "Aurora VLSI devices" + help + If you have a network (Ethernet) device belonging to this class, + say Y. + + Note that the answer to this question doesn't directly affect the + kernel: saying N will just cause the configurator to skip all + questions about Aurora devices. If you say Y, you will be asked + for your specific device in the following questions. + +if NET_VENDOR_AURORA + +config AURORA_NB8800 + tristate "Aurora AU-NB8800 support" + select PHYLIB + help + Support for the AU-NB8800 gigabit Ethernet controller. + +endif diff --git a/drivers/net/ethernet/aurora/Makefile b/drivers/net/ethernet/aurora/Makefile new file mode 100644 index 000000000000..6cb528a2fc26 --- /dev/null +++ b/drivers/net/ethernet/aurora/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_AURORA_NB8800) += nb8800.o diff --git a/drivers/net/ethernet/aurora/nb8800.c b/drivers/net/ethernet/aurora/nb8800.c new file mode 100644 index 000000000000..ecc4a334c507 --- /dev/null +++ b/drivers/net/ethernet/aurora/nb8800.c @@ -0,0 +1,1552 @@ +/* + * Copyright (C) 2015 Mans Rullgard + * + * Mostly rewritten, based on driver from Sigma Designs. Original + * copyright notice below. + * + * + * Driver for tangox SMP864x/SMP865x/SMP867x/SMP868x builtin Ethernet Mac. + * + * Copyright (C) 2005 Maxime Bizon + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "nb8800.h" + +static void nb8800_tx_done(struct net_device *dev); +static int nb8800_dma_stop(struct net_device *dev); + +static inline u8 nb8800_readb(struct nb8800_priv *priv, int reg) +{ + return readb_relaxed(priv->base + reg); +} + +static inline u32 nb8800_readl(struct nb8800_priv *priv, int reg) +{ + return readl_relaxed(priv->base + reg); +} + +static inline void nb8800_writeb(struct nb8800_priv *priv, int reg, u8 val) +{ + writeb_relaxed(val, priv->base + reg); +} + +static inline void nb8800_writew(struct nb8800_priv *priv, int reg, u16 val) +{ + writew_relaxed(val, priv->base + reg); +} + +static inline void nb8800_writel(struct nb8800_priv *priv, int reg, u32 val) +{ + writel_relaxed(val, priv->base + reg); +} + +static inline void nb8800_maskb(struct nb8800_priv *priv, int reg, + u32 mask, u32 val) +{ + u32 old = nb8800_readb(priv, reg); + u32 new = (old & ~mask) | (val & mask); + + if (new != old) + nb8800_writeb(priv, reg, new); +} + +static inline void nb8800_maskl(struct nb8800_priv *priv, int reg, + u32 mask, u32 val) +{ + u32 old = nb8800_readl(priv, reg); + u32 new = (old & ~mask) | (val & mask); + + if (new != old) + nb8800_writel(priv, reg, new); +} + +static inline void nb8800_modb(struct nb8800_priv *priv, int reg, u8 bits, + bool set) +{ + nb8800_maskb(priv, reg, bits, set ? bits : 0); +} + +static inline void nb8800_setb(struct nb8800_priv *priv, int reg, u8 bits) +{ + nb8800_maskb(priv, reg, bits, bits); +} + +static inline void nb8800_clearb(struct nb8800_priv *priv, int reg, u8 bits) +{ + nb8800_maskb(priv, reg, bits, 0); +} + +static inline void nb8800_modl(struct nb8800_priv *priv, int reg, u32 bits, + bool set) +{ + nb8800_maskl(priv, reg, bits, set ? bits : 0); +} + +static inline void nb8800_setl(struct nb8800_priv *priv, int reg, u32 bits) +{ + nb8800_maskl(priv, reg, bits, bits); +} + +static inline void nb8800_clearl(struct nb8800_priv *priv, int reg, u32 bits) +{ + nb8800_maskl(priv, reg, bits, 0); +} + +static int nb8800_mdio_wait(struct mii_bus *bus) +{ + struct nb8800_priv *priv = bus->priv; + u32 val; + + return readl_poll_timeout_atomic(priv->base + NB8800_MDIO_CMD, + val, !(val & MDIO_CMD_GO), 1, 1000); +} + +static int nb8800_mdio_cmd(struct mii_bus *bus, u32 cmd) +{ + struct nb8800_priv *priv = bus->priv; + int err; + + err = nb8800_mdio_wait(bus); + if (err) + return err; + + nb8800_writel(priv, NB8800_MDIO_CMD, cmd); + udelay(10); + nb8800_writel(priv, NB8800_MDIO_CMD, cmd | MDIO_CMD_GO); + + return nb8800_mdio_wait(bus); +} + +static int nb8800_mdio_read(struct mii_bus *bus, int phy_id, int reg) +{ + struct nb8800_priv *priv = bus->priv; + u32 val; + int err; + + err = nb8800_mdio_cmd(bus, MDIO_CMD_ADDR(phy_id) | MDIO_CMD_REG(reg)); + if (err) + return err; + + val = nb8800_readl(priv, NB8800_MDIO_STS); + if (val & MDIO_STS_ERR) + return 0xffff; + + return val & 0xffff; +} + +static int nb8800_mdio_write(struct mii_bus *bus, int phy_id, int reg, u16 val) +{ + u32 cmd = MDIO_CMD_ADDR(phy_id) | MDIO_CMD_REG(reg) | + MDIO_CMD_DATA(val) | MDIO_CMD_WR; + + return nb8800_mdio_cmd(bus, cmd); +} + +static void nb8800_mac_tx(struct net_device *dev, bool enable) +{ + struct nb8800_priv *priv = netdev_priv(dev); + + while (nb8800_readl(priv, NB8800_TXC_CR) & TCR_EN) + cpu_relax(); + + nb8800_modb(priv, NB8800_TX_CTL1, TX_EN, enable); +} + +static void nb8800_mac_rx(struct net_device *dev, bool enable) +{ + nb8800_modb(netdev_priv(dev), NB8800_RX_CTL, RX_EN, enable); +} + +static void nb8800_mac_af(struct net_device *dev, bool enable) +{ + nb8800_modb(netdev_priv(dev), NB8800_RX_CTL, RX_AF_EN, enable); +} + +static void nb8800_start_rx(struct net_device *dev) +{ + nb8800_setl(netdev_priv(dev), NB8800_RXC_CR, RCR_EN); +} + +static int nb8800_alloc_rx(struct net_device *dev, unsigned int i, bool napi) +{ + struct nb8800_priv *priv = netdev_priv(dev); + struct nb8800_rx_desc *rxd = &priv->rx_descs[i]; + struct nb8800_rx_buf *rxb = &priv->rx_bufs[i]; + int size = L1_CACHE_ALIGN(RX_BUF_SIZE); + dma_addr_t dma_addr; + struct page *page; + unsigned long offset; + void *data; + + data = napi ? napi_alloc_frag(size) : netdev_alloc_frag(size); + if (!data) + return -ENOMEM; + + page = virt_to_head_page(data); + offset = data - page_address(page); + + dma_addr = dma_map_page(&dev->dev, page, offset, RX_BUF_SIZE, + DMA_FROM_DEVICE); + + if (dma_mapping_error(&dev->dev, dma_addr)) { + skb_free_frag(data); + return -ENOMEM; + } + + rxb->page = page; + rxb->offset = offset; + rxd->desc.s_addr = dma_addr; + + return 0; +} + +static void nb8800_receive(struct net_device *dev, unsigned int i, + unsigned int len) +{ + struct nb8800_priv *priv = netdev_priv(dev); + struct nb8800_rx_desc *rxd = &priv->rx_descs[i]; + struct page *page = priv->rx_bufs[i].page; + int offset = priv->rx_bufs[i].offset; + void *data = page_address(page) + offset; + dma_addr_t dma = rxd->desc.s_addr; + struct sk_buff *skb; + unsigned int size; + int err; + + size = len <= RX_COPYBREAK ? len : RX_COPYHDR; + + skb = napi_alloc_skb(&priv->napi, size); + if (!skb) { + netdev_err(dev, "rx skb allocation failed\n"); + dev->stats.rx_dropped++; + return; + } + + if (len <= RX_COPYBREAK) { + dma_sync_single_for_cpu(&dev->dev, dma, len, DMA_FROM_DEVICE); + memcpy(skb_put(skb, len), data, len); + dma_sync_single_for_device(&dev->dev, dma, len, + DMA_FROM_DEVICE); + } else { + err = nb8800_alloc_rx(dev, i, true); + if (err) { + netdev_err(dev, "rx buffer allocation failed\n"); + dev->stats.rx_dropped++; + return; + } + + dma_unmap_page(&dev->dev, dma, RX_BUF_SIZE, DMA_FROM_DEVICE); + memcpy(skb_put(skb, RX_COPYHDR), data, RX_COPYHDR); + skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, + offset + RX_COPYHDR, len - RX_COPYHDR, + RX_BUF_SIZE); + } + + skb->protocol = eth_type_trans(skb, dev); + napi_gro_receive(&priv->napi, skb); +} + +static void nb8800_rx_error(struct net_device *dev, u32 report) +{ + if (report & RX_LENGTH_ERR) + dev->stats.rx_length_errors++; + + if (report & RX_FCS_ERR) + dev->stats.rx_crc_errors++; + + if (report & RX_FIFO_OVERRUN) + dev->stats.rx_fifo_errors++; + + if (report & RX_ALIGNMENT_ERROR) + dev->stats.rx_frame_errors++; + + dev->stats.rx_errors++; +} + +static int nb8800_poll(struct napi_struct *napi, int budget) +{ + struct net_device *dev = napi->dev; + struct nb8800_priv *priv = netdev_priv(dev); + struct nb8800_rx_desc *rxd; + unsigned int last = priv->rx_eoc; + unsigned int next; + int work = 0; + + nb8800_tx_done(dev); + +again: + while (work < budget) { + struct nb8800_rx_buf *rxb; + unsigned int len; + + next = (last + 1) % RX_DESC_COUNT; + + rxb = &priv->rx_bufs[next]; + rxd = &priv->rx_descs[next]; + + if (!rxd->report) + break; + + len = RX_BYTES_TRANSFERRED(rxd->report); + + if (IS_RX_ERROR(rxd->report)) + nb8800_rx_error(dev, rxd->report); + else + nb8800_receive(dev, next, len); + + dev->stats.rx_packets++; + dev->stats.rx_bytes += len; + + if (rxd->report & RX_MULTICAST_PKT) + dev->stats.multicast++; + + rxd->report = 0; + last = next; + work++; + } + + if (work) { + priv->rx_descs[last].desc.config |= DESC_EOC; + wmb(); /* ensure new EOC is written before clearing old */ + priv->rx_descs[priv->rx_eoc].desc.config &= ~DESC_EOC; + priv->rx_eoc = last; + nb8800_start_rx(dev); + } + + if (work < budget) { + nb8800_writel(priv, NB8800_RX_ITR, priv->rx_itr_irq); + + /* If a packet arrived after we last checked but + * before writing RX_ITR, the interrupt will be + * delayed, so we retrieve it now. + */ + if (priv->rx_descs[next].report) + goto again; + + napi_complete_done(napi, work); + } + + return work; +} + +static void __nb8800_tx_dma_start(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + struct nb8800_tx_buf *txb; + u32 txc_cr; + + txb = &priv->tx_bufs[priv->tx_queue]; + if (!txb->ready) + return; + + txc_cr = nb8800_readl(priv, NB8800_TXC_CR); + if (txc_cr & TCR_EN) + return; + + nb8800_writel(priv, NB8800_TX_DESC_ADDR, txb->dma_desc); + wmb(); /* ensure desc addr is written before starting DMA */ + nb8800_writel(priv, NB8800_TXC_CR, txc_cr | TCR_EN); + + priv->tx_queue = (priv->tx_queue + txb->chain_len) % TX_DESC_COUNT; +} + +static void nb8800_tx_dma_start(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + + spin_lock_irq(&priv->tx_lock); + __nb8800_tx_dma_start(dev); + spin_unlock_irq(&priv->tx_lock); +} + +static void nb8800_tx_dma_start_irq(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + + spin_lock(&priv->tx_lock); + __nb8800_tx_dma_start(dev); + spin_unlock(&priv->tx_lock); +} + +static int nb8800_xmit(struct sk_buff *skb, struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + struct nb8800_tx_desc *txd; + struct nb8800_tx_buf *txb; + struct nb8800_dma_desc *desc; + dma_addr_t dma_addr; + unsigned int dma_len; + unsigned int align; + unsigned int next; + + if (atomic_read(&priv->tx_free) <= NB8800_DESC_LOW) { + netif_stop_queue(dev); + return NETDEV_TX_BUSY; + } + + align = (8 - (uintptr_t)skb->data) & 7; + + dma_len = skb->len - align; + dma_addr = dma_map_single(&dev->dev, skb->data + align, + dma_len, DMA_TO_DEVICE); + + if (dma_mapping_error(&dev->dev, dma_addr)) { + netdev_err(dev, "tx dma mapping error\n"); + kfree_skb(skb); + dev->stats.tx_dropped++; + return NETDEV_TX_OK; + } + + if (atomic_dec_return(&priv->tx_free) <= NB8800_DESC_LOW) { + netif_stop_queue(dev); + skb->xmit_more = 0; + } + + next = priv->tx_next; + txb = &priv->tx_bufs[next]; + txd = &priv->tx_descs[next]; + desc = &txd->desc[0]; + + next = (next + 1) % TX_DESC_COUNT; + + if (align) { + memcpy(txd->buf, skb->data, align); + + desc->s_addr = + txb->dma_desc + offsetof(struct nb8800_tx_desc, buf); + desc->n_addr = txb->dma_desc + sizeof(txd->desc[0]); + desc->config = DESC_BTS(2) | DESC_DS | align; + + desc++; + } + + desc->s_addr = dma_addr; + desc->n_addr = priv->tx_bufs[next].dma_desc; + desc->config = DESC_BTS(2) | DESC_DS | DESC_EOF | dma_len; + + if (!skb->xmit_more) + desc->config |= DESC_EOC; + + txb->skb = skb; + txb->dma_addr = dma_addr; + txb->dma_len = dma_len; + + if (!priv->tx_chain) { + txb->chain_len = 1; + priv->tx_chain = txb; + } else { + priv->tx_chain->chain_len++; + } + + netdev_sent_queue(dev, skb->len); + + priv->tx_next = next; + + if (!skb->xmit_more) { + smp_wmb(); + priv->tx_chain->ready = true; + priv->tx_chain = NULL; + nb8800_tx_dma_start(dev); + } + + return NETDEV_TX_OK; +} + +static void nb8800_tx_error(struct net_device *dev, u32 report) +{ + if (report & TX_LATE_COLLISION) + dev->stats.collisions++; + + if (report & TX_PACKET_DROPPED) + dev->stats.tx_dropped++; + + if (report & TX_FIFO_UNDERRUN) + dev->stats.tx_fifo_errors++; + + dev->stats.tx_errors++; +} + +static void nb8800_tx_done(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + unsigned int limit = priv->tx_next; + unsigned int done = priv->tx_done; + unsigned int packets = 0; + unsigned int len = 0; + + while (done != limit) { + struct nb8800_tx_desc *txd = &priv->tx_descs[done]; + struct nb8800_tx_buf *txb = &priv->tx_bufs[done]; + struct sk_buff *skb; + + if (!txd->report) + break; + + skb = txb->skb; + len += skb->len; + + dma_unmap_single(&dev->dev, txb->dma_addr, txb->dma_len, + DMA_TO_DEVICE); + + if (IS_TX_ERROR(txd->report)) { + nb8800_tx_error(dev, txd->report); + kfree_skb(skb); + } else { + consume_skb(skb); + } + + dev->stats.tx_packets++; + dev->stats.tx_bytes += TX_BYTES_TRANSFERRED(txd->report); + dev->stats.collisions += TX_EARLY_COLLISIONS(txd->report); + + txb->skb = NULL; + txb->ready = false; + txd->report = 0; + + done = (done + 1) % TX_DESC_COUNT; + packets++; + } + + if (packets) { + smp_mb__before_atomic(); + atomic_add(packets, &priv->tx_free); + netdev_completed_queue(dev, packets, len); + netif_wake_queue(dev); + priv->tx_done = done; + } +} + +static irqreturn_t nb8800_irq(int irq, void *dev_id) +{ + struct net_device *dev = dev_id; + struct nb8800_priv *priv = netdev_priv(dev); + irqreturn_t ret = IRQ_NONE; + u32 val; + + /* tx interrupt */ + val = nb8800_readl(priv, NB8800_TXC_SR); + if (val) { + nb8800_writel(priv, NB8800_TXC_SR, val); + + if (val & TSR_DI) + nb8800_tx_dma_start_irq(dev); + + if (val & TSR_TI) + napi_schedule_irqoff(&priv->napi); + + if (unlikely(val & TSR_DE)) + netdev_err(dev, "TX DMA error\n"); + + /* should never happen with automatic status retrieval */ + if (unlikely(val & TSR_TO)) + netdev_err(dev, "TX Status FIFO overflow\n"); + + ret = IRQ_HANDLED; + } + + /* rx interrupt */ + val = nb8800_readl(priv, NB8800_RXC_SR); + if (val) { + nb8800_writel(priv, NB8800_RXC_SR, val); + + if (likely(val & (RSR_RI | RSR_DI))) { + nb8800_writel(priv, NB8800_RX_ITR, priv->rx_itr_poll); + napi_schedule_irqoff(&priv->napi); + } + + if (unlikely(val & RSR_DE)) + netdev_err(dev, "RX DMA error\n"); + + /* should never happen with automatic status retrieval */ + if (unlikely(val & RSR_RO)) + netdev_err(dev, "RX Status FIFO overflow\n"); + + ret = IRQ_HANDLED; + } + + return ret; +} + +static void nb8800_mac_config(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + bool gigabit = priv->speed == SPEED_1000; + u32 mac_mode_mask = RGMII_MODE | HALF_DUPLEX | GMAC_MODE; + u32 mac_mode = 0; + u32 slot_time; + u32 phy_clk; + u32 ict; + + if (!priv->duplex) + mac_mode |= HALF_DUPLEX; + + if (gigabit) { + if (priv->phy_mode == PHY_INTERFACE_MODE_RGMII) + mac_mode |= RGMII_MODE; + + mac_mode |= GMAC_MODE; + phy_clk = 125000000; + + /* Should be 512 but register is only 8 bits */ + slot_time = 255; + } else { + phy_clk = 25000000; + slot_time = 128; + } + + ict = DIV_ROUND_UP(phy_clk, clk_get_rate(priv->clk)); + + nb8800_writeb(priv, NB8800_IC_THRESHOLD, ict); + nb8800_writeb(priv, NB8800_SLOT_TIME, slot_time); + nb8800_maskb(priv, NB8800_MAC_MODE, mac_mode_mask, mac_mode); +} + +static void nb8800_pause_config(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + struct phy_device *phydev = priv->phydev; + u32 rxcr; + + if (priv->pause_aneg) { + if (!phydev || !phydev->link) + return; + + priv->pause_rx = phydev->pause; + priv->pause_tx = phydev->pause ^ phydev->asym_pause; + } + + nb8800_modb(priv, NB8800_RX_CTL, RX_PAUSE_EN, priv->pause_rx); + + rxcr = nb8800_readl(priv, NB8800_RXC_CR); + if (!!(rxcr & RCR_FL) == priv->pause_tx) + return; + + if (netif_running(dev)) { + napi_disable(&priv->napi); + netif_tx_lock_bh(dev); + nb8800_dma_stop(dev); + nb8800_modl(priv, NB8800_RXC_CR, RCR_FL, priv->pause_tx); + nb8800_start_rx(dev); + netif_tx_unlock_bh(dev); + napi_enable(&priv->napi); + } else { + nb8800_modl(priv, NB8800_RXC_CR, RCR_FL, priv->pause_tx); + } +} + +static void nb8800_link_reconfigure(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + struct phy_device *phydev = priv->phydev; + int change = 0; + + if (phydev->link) { + if (phydev->speed != priv->speed) { + priv->speed = phydev->speed; + change = 1; + } + + if (phydev->duplex != priv->duplex) { + priv->duplex = phydev->duplex; + change = 1; + } + + if (change) + nb8800_mac_config(dev); + + nb8800_pause_config(dev); + } + + if (phydev->link != priv->link) { + priv->link = phydev->link; + change = 1; + } + + if (change) + phy_print_status(priv->phydev); +} + +static void nb8800_update_mac_addr(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + int i; + + for (i = 0; i < ETH_ALEN; i++) + nb8800_writeb(priv, NB8800_SRC_ADDR(i), dev->dev_addr[i]); + + for (i = 0; i < ETH_ALEN; i++) + nb8800_writeb(priv, NB8800_UC_ADDR(i), dev->dev_addr[i]); +} + +static int nb8800_set_mac_address(struct net_device *dev, void *addr) +{ + struct sockaddr *sock = addr; + + if (netif_running(dev)) + return -EBUSY; + + ether_addr_copy(dev->dev_addr, sock->sa_data); + nb8800_update_mac_addr(dev); + + return 0; +} + +static void nb8800_mc_init(struct net_device *dev, int val) +{ + struct nb8800_priv *priv = netdev_priv(dev); + + nb8800_writeb(priv, NB8800_MC_INIT, val); + readb_poll_timeout_atomic(priv->base + NB8800_MC_INIT, val, !val, + 1, 1000); +} + +static void nb8800_set_rx_mode(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + struct netdev_hw_addr *ha; + int i; + + if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) { + nb8800_mac_af(dev, false); + return; + } + + nb8800_mac_af(dev, true); + nb8800_mc_init(dev, 0); + + netdev_for_each_mc_addr(ha, dev) { + for (i = 0; i < ETH_ALEN; i++) + nb8800_writeb(priv, NB8800_MC_ADDR(i), ha->addr[i]); + + nb8800_mc_init(dev, 0xff); + } +} + +#define RX_DESC_SIZE (RX_DESC_COUNT * sizeof(struct nb8800_rx_desc)) +#define TX_DESC_SIZE (TX_DESC_COUNT * sizeof(struct nb8800_tx_desc)) + +static void nb8800_dma_free(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + unsigned int i; + + if (priv->rx_bufs) { + for (i = 0; i < RX_DESC_COUNT; i++) + if (priv->rx_bufs[i].page) + put_page(priv->rx_bufs[i].page); + + kfree(priv->rx_bufs); + priv->rx_bufs = NULL; + } + + if (priv->tx_bufs) { + for (i = 0; i < TX_DESC_COUNT; i++) + kfree_skb(priv->tx_bufs[i].skb); + + kfree(priv->tx_bufs); + priv->tx_bufs = NULL; + } + + if (priv->rx_descs) { + dma_free_coherent(dev->dev.parent, RX_DESC_SIZE, priv->rx_descs, + priv->rx_desc_dma); + priv->rx_descs = NULL; + } + + if (priv->tx_descs) { + dma_free_coherent(dev->dev.parent, TX_DESC_SIZE, priv->tx_descs, + priv->tx_desc_dma); + priv->tx_descs = NULL; + } +} + +static void nb8800_dma_reset(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + struct nb8800_rx_desc *rxd; + struct nb8800_tx_desc *txd; + unsigned int i; + + for (i = 0; i < RX_DESC_COUNT; i++) { + dma_addr_t rx_dma = priv->rx_desc_dma + i * sizeof(*rxd); + + rxd = &priv->rx_descs[i]; + rxd->desc.n_addr = rx_dma + sizeof(*rxd); + rxd->desc.r_addr = + rx_dma + offsetof(struct nb8800_rx_desc, report); + rxd->desc.config = priv->rx_dma_config; + rxd->report = 0; + } + + rxd->desc.n_addr = priv->rx_desc_dma; + rxd->desc.config |= DESC_EOC; + + priv->rx_eoc = RX_DESC_COUNT - 1; + + for (i = 0; i < TX_DESC_COUNT; i++) { + struct nb8800_tx_buf *txb = &priv->tx_bufs[i]; + dma_addr_t r_dma = txb->dma_desc + + offsetof(struct nb8800_tx_desc, report); + + txd = &priv->tx_descs[i]; + txd->desc[0].r_addr = r_dma; + txd->desc[1].r_addr = r_dma; + txd->report = 0; + } + + priv->tx_next = 0; + priv->tx_queue = 0; + priv->tx_done = 0; + atomic_set(&priv->tx_free, TX_DESC_COUNT); + + nb8800_writel(priv, NB8800_RX_DESC_ADDR, priv->rx_desc_dma); + + wmb(); /* ensure all setup is written before starting */ +} + +static int nb8800_dma_init(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + unsigned int n_rx = RX_DESC_COUNT; + unsigned int n_tx = TX_DESC_COUNT; + unsigned int i; + int err; + + priv->rx_descs = dma_alloc_coherent(dev->dev.parent, RX_DESC_SIZE, + &priv->rx_desc_dma, GFP_KERNEL); + if (!priv->rx_descs) + goto err_out; + + priv->rx_bufs = kcalloc(n_rx, sizeof(*priv->rx_bufs), GFP_KERNEL); + if (!priv->rx_bufs) + goto err_out; + + for (i = 0; i < n_rx; i++) { + err = nb8800_alloc_rx(dev, i, false); + if (err) + goto err_out; + } + + priv->tx_descs = dma_alloc_coherent(dev->dev.parent, TX_DESC_SIZE, + &priv->tx_desc_dma, GFP_KERNEL); + if (!priv->tx_descs) + goto err_out; + + priv->tx_bufs = kcalloc(n_tx, sizeof(*priv->tx_bufs), GFP_KERNEL); + if (!priv->tx_bufs) + goto err_out; + + for (i = 0; i < n_tx; i++) + priv->tx_bufs[i].dma_desc = + priv->tx_desc_dma + i * sizeof(struct nb8800_tx_desc); + + nb8800_dma_reset(dev); + + return 0; + +err_out: + nb8800_dma_free(dev); + + return -ENOMEM; +} + +static int nb8800_dma_stop(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + struct nb8800_tx_buf *txb = &priv->tx_bufs[0]; + struct nb8800_tx_desc *txd = &priv->tx_descs[0]; + int retry = 5; + u32 txcr; + u32 rxcr; + int err; + unsigned int i; + + /* wait for tx to finish */ + err = readl_poll_timeout_atomic(priv->base + NB8800_TXC_CR, txcr, + !(txcr & TCR_EN) && + priv->tx_done == priv->tx_next, + 1000, 1000000); + if (err) + return err; + + /* The rx DMA only stops if it reaches the end of chain. + * To make this happen, we set the EOC flag on all rx + * descriptors, put the device in loopback mode, and send + * a few dummy frames. The interrupt handler will ignore + * these since NAPI is disabled and no real frames are in + * the tx queue. + */ + + for (i = 0; i < RX_DESC_COUNT; i++) + priv->rx_descs[i].desc.config |= DESC_EOC; + + txd->desc[0].s_addr = + txb->dma_desc + offsetof(struct nb8800_tx_desc, buf); + txd->desc[0].config = DESC_BTS(2) | DESC_DS | DESC_EOF | DESC_EOC | 8; + memset(txd->buf, 0, sizeof(txd->buf)); + + nb8800_mac_af(dev, false); + nb8800_setb(priv, NB8800_MAC_MODE, LOOPBACK_EN); + + do { + nb8800_writel(priv, NB8800_TX_DESC_ADDR, txb->dma_desc); + wmb(); + nb8800_writel(priv, NB8800_TXC_CR, txcr | TCR_EN); + + err = readl_poll_timeout_atomic(priv->base + NB8800_RXC_CR, + rxcr, !(rxcr & RCR_EN), + 1000, 100000); + } while (err && --retry); + + nb8800_mac_af(dev, true); + nb8800_clearb(priv, NB8800_MAC_MODE, LOOPBACK_EN); + nb8800_dma_reset(dev); + + return retry ? 0 : -ETIMEDOUT; +} + +static void nb8800_pause_adv(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + u32 adv = 0; + + if (!priv->phydev) + return; + + if (priv->pause_rx) + adv |= ADVERTISED_Pause | ADVERTISED_Asym_Pause; + if (priv->pause_tx) + adv ^= ADVERTISED_Asym_Pause; + + priv->phydev->supported |= adv; + priv->phydev->advertising |= adv; +} + +static int nb8800_open(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + int err; + + /* clear any pending interrupts */ + nb8800_writel(priv, NB8800_RXC_SR, 0xf); + nb8800_writel(priv, NB8800_TXC_SR, 0xf); + + err = nb8800_dma_init(dev); + if (err) + return err; + + err = request_irq(dev->irq, nb8800_irq, 0, dev_name(&dev->dev), dev); + if (err) + goto err_free_dma; + + nb8800_mac_rx(dev, true); + nb8800_mac_tx(dev, true); + + priv->phydev = of_phy_connect(dev, priv->phy_node, + nb8800_link_reconfigure, 0, + priv->phy_mode); + if (!priv->phydev) + goto err_free_irq; + + nb8800_pause_adv(dev); + + netdev_reset_queue(dev); + napi_enable(&priv->napi); + netif_start_queue(dev); + + nb8800_start_rx(dev); + phy_start(priv->phydev); + + return 0; + +err_free_irq: + free_irq(dev->irq, dev); +err_free_dma: + nb8800_dma_free(dev); + + return err; +} + +static int nb8800_stop(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + + phy_stop(priv->phydev); + + netif_stop_queue(dev); + napi_disable(&priv->napi); + + nb8800_dma_stop(dev); + nb8800_mac_rx(dev, false); + nb8800_mac_tx(dev, false); + + phy_disconnect(priv->phydev); + priv->phydev = NULL; + + free_irq(dev->irq, dev); + + nb8800_dma_free(dev); + + return 0; +} + +static int nb8800_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) +{ + struct nb8800_priv *priv = netdev_priv(dev); + + return phy_mii_ioctl(priv->phydev, rq, cmd); +} + +static const struct net_device_ops nb8800_netdev_ops = { + .ndo_open = nb8800_open, + .ndo_stop = nb8800_stop, + .ndo_start_xmit = nb8800_xmit, + .ndo_set_mac_address = nb8800_set_mac_address, + .ndo_set_rx_mode = nb8800_set_rx_mode, + .ndo_do_ioctl = nb8800_ioctl, + .ndo_change_mtu = eth_change_mtu, + .ndo_validate_addr = eth_validate_addr, +}; + +static int nb8800_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct nb8800_priv *priv = netdev_priv(dev); + + if (!priv->phydev) + return -ENODEV; + + return phy_ethtool_gset(priv->phydev, cmd); +} + +static int nb8800_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct nb8800_priv *priv = netdev_priv(dev); + + if (!priv->phydev) + return -ENODEV; + + return phy_ethtool_sset(priv->phydev, cmd); +} + +static int nb8800_nway_reset(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + + if (!priv->phydev) + return -ENODEV; + + return genphy_restart_aneg(priv->phydev); +} + +static void nb8800_get_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *pp) +{ + struct nb8800_priv *priv = netdev_priv(dev); + + pp->autoneg = priv->pause_aneg; + pp->rx_pause = priv->pause_rx; + pp->tx_pause = priv->pause_tx; +} + +static int nb8800_set_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *pp) +{ + struct nb8800_priv *priv = netdev_priv(dev); + + priv->pause_aneg = pp->autoneg; + priv->pause_rx = pp->rx_pause; + priv->pause_tx = pp->tx_pause; + + nb8800_pause_adv(dev); + + if (!priv->pause_aneg) + nb8800_pause_config(dev); + else if (priv->phydev) + phy_start_aneg(priv->phydev); + + return 0; +} + +static const char nb8800_stats_names[][ETH_GSTRING_LEN] = { + "rx_bytes_ok", + "rx_frames_ok", + "rx_undersize_frames", + "rx_fragment_frames", + "rx_64_byte_frames", + "rx_127_byte_frames", + "rx_255_byte_frames", + "rx_511_byte_frames", + "rx_1023_byte_frames", + "rx_max_size_frames", + "rx_oversize_frames", + "rx_bad_fcs_frames", + "rx_broadcast_frames", + "rx_multicast_frames", + "rx_control_frames", + "rx_pause_frames", + "rx_unsup_control_frames", + "rx_align_error_frames", + "rx_overrun_frames", + "rx_jabber_frames", + "rx_bytes", + "rx_frames", + + "tx_bytes_ok", + "tx_frames_ok", + "tx_64_byte_frames", + "tx_127_byte_frames", + "tx_255_byte_frames", + "tx_511_byte_frames", + "tx_1023_byte_frames", + "tx_max_size_frames", + "tx_oversize_frames", + "tx_broadcast_frames", + "tx_multicast_frames", + "tx_control_frames", + "tx_pause_frames", + "tx_underrun_frames", + "tx_single_collision_frames", + "tx_multi_collision_frames", + "tx_deferred_collision_frames", + "tx_late_collision_frames", + "tx_excessive_collision_frames", + "tx_bytes", + "tx_frames", + "tx_collisions", +}; + +#define NB8800_NUM_STATS ARRAY_SIZE(nb8800_stats_names) + +static int nb8800_get_sset_count(struct net_device *dev, int sset) +{ + if (sset == ETH_SS_STATS) + return NB8800_NUM_STATS; + + return -EOPNOTSUPP; +} + +static void nb8800_get_strings(struct net_device *dev, u32 sset, u8 *buf) +{ + if (sset == ETH_SS_STATS) + memcpy(buf, &nb8800_stats_names, sizeof(nb8800_stats_names)); +} + +static u32 nb8800_read_stat(struct net_device *dev, int index) +{ + struct nb8800_priv *priv = netdev_priv(dev); + + nb8800_writeb(priv, NB8800_STAT_INDEX, index); + + return nb8800_readl(priv, NB8800_STAT_DATA); +} + +static void nb8800_get_ethtool_stats(struct net_device *dev, + struct ethtool_stats *estats, u64 *st) +{ + unsigned int i; + u32 rx, tx; + + for (i = 0; i < NB8800_NUM_STATS / 2; i++) { + rx = nb8800_read_stat(dev, i); + tx = nb8800_read_stat(dev, i | 0x80); + st[i] = rx; + st[i + NB8800_NUM_STATS / 2] = tx; + } +} + +static const struct ethtool_ops nb8800_ethtool_ops = { + .get_settings = nb8800_get_settings, + .set_settings = nb8800_set_settings, + .nway_reset = nb8800_nway_reset, + .get_link = ethtool_op_get_link, + .get_pauseparam = nb8800_get_pauseparam, + .set_pauseparam = nb8800_set_pauseparam, + .get_sset_count = nb8800_get_sset_count, + .get_strings = nb8800_get_strings, + .get_ethtool_stats = nb8800_get_ethtool_stats, +}; + +static int nb8800_hw_init(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + u32 val; + + val = TX_RETRY_EN | TX_PAD_EN | TX_APPEND_FCS; + nb8800_writeb(priv, NB8800_TX_CTL1, val); + + /* Collision retry count */ + nb8800_writeb(priv, NB8800_TX_CTL2, 5); + + val = RX_PAD_STRIP | RX_AF_EN; + nb8800_writeb(priv, NB8800_RX_CTL, val); + + /* Chosen by fair dice roll */ + nb8800_writeb(priv, NB8800_RANDOM_SEED, 4); + + /* TX cycles per deferral period */ + nb8800_writeb(priv, NB8800_TX_SDP, 12); + + /* The following three threshold values have been + * experimentally determined for good results. + */ + + /* RX/TX FIFO threshold for partial empty (64-bit entries) */ + nb8800_writeb(priv, NB8800_PE_THRESHOLD, 0); + + /* RX/TX FIFO threshold for partial full (64-bit entries) */ + nb8800_writeb(priv, NB8800_PF_THRESHOLD, 255); + + /* Buffer size for transmit (64-bit entries) */ + nb8800_writeb(priv, NB8800_TX_BUFSIZE, 64); + + /* Configure tx DMA */ + + val = nb8800_readl(priv, NB8800_TXC_CR); + val &= TCR_LE; /* keep endian setting */ + val |= TCR_DM; /* DMA descriptor mode */ + val |= TCR_RS; /* automatically store tx status */ + val |= TCR_DIE; /* interrupt on DMA chain completion */ + val |= TCR_TFI(7); /* interrupt after 7 frames transmitted */ + val |= TCR_BTS(2); /* 32-byte bus transaction size */ + nb8800_writel(priv, NB8800_TXC_CR, val); + + /* TX complete interrupt after 10 ms or 7 frames (see above) */ + val = clk_get_rate(priv->clk) / 100; + nb8800_writel(priv, NB8800_TX_ITR, val); + + /* Configure rx DMA */ + + val = nb8800_readl(priv, NB8800_RXC_CR); + val &= RCR_LE; /* keep endian setting */ + val |= RCR_DM; /* DMA descriptor mode */ + val |= RCR_RS; /* automatically store rx status */ + val |= RCR_DIE; /* interrupt at end of DMA chain */ + val |= RCR_RFI(7); /* interrupt after 7 frames received */ + val |= RCR_BTS(2); /* 32-byte bus transaction size */ + nb8800_writel(priv, NB8800_RXC_CR, val); + + /* The rx interrupt can fire before the DMA has completed + * unless a small delay is added. 50 us is hopefully enough. + */ + priv->rx_itr_irq = clk_get_rate(priv->clk) / 20000; + + /* In NAPI poll mode we want to disable interrupts, but the + * hardware does not permit this. Delay 10 ms instead. + */ + priv->rx_itr_poll = clk_get_rate(priv->clk) / 100; + + nb8800_writel(priv, NB8800_RX_ITR, priv->rx_itr_irq); + + priv->rx_dma_config = RX_BUF_SIZE | DESC_BTS(2) | DESC_DS | DESC_EOF; + + /* Flow control settings */ + + /* Pause time of 0.1 ms */ + val = 100000 / 512; + nb8800_writeb(priv, NB8800_PQ1, val >> 8); + nb8800_writeb(priv, NB8800_PQ2, val & 0xff); + + /* Auto-negotiate by default */ + priv->pause_aneg = true; + priv->pause_rx = true; + priv->pause_tx = true; + + nb8800_mc_init(dev, 0); + + return 0; +} + +static int nb8800_tangox_init(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + u32 pad_mode = PAD_MODE_MII; + + switch (priv->phy_mode) { + case PHY_INTERFACE_MODE_MII: + case PHY_INTERFACE_MODE_GMII: + pad_mode = PAD_MODE_MII; + break; + + case PHY_INTERFACE_MODE_RGMII: + pad_mode = PAD_MODE_RGMII; + break; + + case PHY_INTERFACE_MODE_RGMII_TXID: + pad_mode = PAD_MODE_RGMII | PAD_MODE_GTX_CLK_DELAY; + break; + + default: + dev_err(dev->dev.parent, "unsupported phy mode %s\n", + phy_modes(priv->phy_mode)); + return -EINVAL; + } + + nb8800_writeb(priv, NB8800_TANGOX_PAD_MODE, pad_mode); + + return 0; +} + +static int nb8800_tangox_reset(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + int clk_div; + + nb8800_writeb(priv, NB8800_TANGOX_RESET, 0); + usleep_range(1000, 10000); + nb8800_writeb(priv, NB8800_TANGOX_RESET, 1); + + wmb(); /* ensure reset is cleared before proceeding */ + + clk_div = DIV_ROUND_UP(clk_get_rate(priv->clk), 2 * MAX_MDC_CLOCK); + nb8800_writew(priv, NB8800_TANGOX_MDIO_CLKDIV, clk_div); + + return 0; +} + +static const struct nb8800_ops nb8800_tangox_ops = { + .init = nb8800_tangox_init, + .reset = nb8800_tangox_reset, +}; + +static int nb8800_tango4_init(struct net_device *dev) +{ + struct nb8800_priv *priv = netdev_priv(dev); + int err; + + err = nb8800_tangox_init(dev); + if (err) + return err; + + /* On tango4 interrupt on DMA completion per frame works and gives + * better performance despite generating more rx interrupts. + */ + + /* Disable unnecessary interrupt on rx completion */ + nb8800_clearl(priv, NB8800_RXC_CR, RCR_RFI(7)); + + /* Request interrupt on descriptor DMA completion */ + priv->rx_dma_config |= DESC_ID; + + return 0; +} + +static const struct nb8800_ops nb8800_tango4_ops = { + .init = nb8800_tango4_init, + .reset = nb8800_tangox_reset, +}; + +static const struct of_device_id nb8800_dt_ids[] = { + { + .compatible = "aurora,nb8800", + }, + { + .compatible = "sigma,smp8642-ethernet", + .data = &nb8800_tangox_ops, + }, + { + .compatible = "sigma,smp8734-ethernet", + .data = &nb8800_tango4_ops, + }, + { } +}; + +static int nb8800_probe(struct platform_device *pdev) +{ + const struct of_device_id *match; + const struct nb8800_ops *ops = NULL; + struct nb8800_priv *priv; + struct resource *res; + struct net_device *dev; + struct mii_bus *bus; + const unsigned char *mac; + void __iomem *base; + int irq; + int ret; + + match = of_match_device(nb8800_dt_ids, &pdev->dev); + if (match) + ops = match->data; + + irq = platform_get_irq(pdev, 0); + if (irq <= 0) { + dev_err(&pdev->dev, "No IRQ\n"); + return -EINVAL; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(base)) + return PTR_ERR(base); + + dev_dbg(&pdev->dev, "AU-NB8800 Ethernet at %pa\n", &res->start); + + dev = alloc_etherdev(sizeof(*priv)); + if (!dev) + return -ENOMEM; + + platform_set_drvdata(pdev, dev); + SET_NETDEV_DEV(dev, &pdev->dev); + + priv = netdev_priv(dev); + priv->base = base; + + priv->phy_mode = of_get_phy_mode(pdev->dev.of_node); + if (priv->phy_mode < 0) + priv->phy_mode = PHY_INTERFACE_MODE_RGMII; + + priv->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(priv->clk)) { + dev_err(&pdev->dev, "failed to get clock\n"); + ret = PTR_ERR(priv->clk); + goto err_free_dev; + } + + ret = clk_prepare_enable(priv->clk); + if (ret) + goto err_free_dev; + + spin_lock_init(&priv->tx_lock); + + if (ops && ops->reset) { + ret = ops->reset(dev); + if (ret) + goto err_free_dev; + } + + bus = devm_mdiobus_alloc(&pdev->dev); + if (!bus) { + ret = -ENOMEM; + goto err_disable_clk; + } + + bus->name = "nb8800-mii"; + bus->read = nb8800_mdio_read; + bus->write = nb8800_mdio_write; + bus->parent = &pdev->dev; + snprintf(bus->id, MII_BUS_ID_SIZE, "%lx.nb8800-mii", + (unsigned long)res->start); + bus->priv = priv; + + ret = of_mdiobus_register(bus, pdev->dev.of_node); + if (ret) { + dev_err(&pdev->dev, "failed to register MII bus\n"); + goto err_disable_clk; + } + + priv->phy_node = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0); + if (!priv->phy_node) { + dev_err(&pdev->dev, "no PHY specified\n"); + ret = -ENODEV; + goto err_free_bus; + } + + priv->mii_bus = bus; + + ret = nb8800_hw_init(dev); + if (ret) + goto err_free_bus; + + if (ops && ops->init) { + ret = ops->init(dev); + if (ret) + goto err_free_bus; + } + + dev->netdev_ops = &nb8800_netdev_ops; + dev->ethtool_ops = &nb8800_ethtool_ops; + dev->flags |= IFF_MULTICAST; + dev->irq = irq; + + mac = of_get_mac_address(pdev->dev.of_node); + if (mac) + ether_addr_copy(dev->dev_addr, mac); + + if (!is_valid_ether_addr(dev->dev_addr)) + eth_hw_addr_random(dev); + + nb8800_update_mac_addr(dev); + + netif_carrier_off(dev); + + ret = register_netdev(dev); + if (ret) { + netdev_err(dev, "failed to register netdev\n"); + goto err_free_dma; + } + + netif_napi_add(dev, &priv->napi, nb8800_poll, NAPI_POLL_WEIGHT); + + netdev_info(dev, "MAC address %pM\n", dev->dev_addr); + + return 0; + +err_free_dma: + nb8800_dma_free(dev); +err_free_bus: + mdiobus_unregister(bus); +err_disable_clk: + clk_disable_unprepare(priv->clk); +err_free_dev: + free_netdev(dev); + + return ret; +} + +static int nb8800_remove(struct platform_device *pdev) +{ + struct net_device *ndev = platform_get_drvdata(pdev); + struct nb8800_priv *priv = netdev_priv(ndev); + + unregister_netdev(ndev); + + mdiobus_unregister(priv->mii_bus); + + clk_disable_unprepare(priv->clk); + + nb8800_dma_free(ndev); + free_netdev(ndev); + + return 0; +} + +static struct platform_driver nb8800_driver = { + .driver = { + .name = "nb8800", + .of_match_table = nb8800_dt_ids, + }, + .probe = nb8800_probe, + .remove = nb8800_remove, +}; + +module_platform_driver(nb8800_driver); + +MODULE_DESCRIPTION("Aurora AU-NB8800 Ethernet driver"); +MODULE_AUTHOR("Mans Rullgard "); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/ethernet/aurora/nb8800.h b/drivers/net/ethernet/aurora/nb8800.h new file mode 100644 index 000000000000..e5adbc2aac9f --- /dev/null +++ b/drivers/net/ethernet/aurora/nb8800.h @@ -0,0 +1,316 @@ +#ifndef _NB8800_H_ +#define _NB8800_H_ + +#include +#include +#include +#include +#include + +#define RX_DESC_COUNT 256 +#define TX_DESC_COUNT 256 + +#define NB8800_DESC_LOW 4 + +#define RX_BUF_SIZE 1552 + +#define RX_COPYBREAK 256 +#define RX_COPYHDR 128 + +#define MAX_MDC_CLOCK 2500000 + +/* Stargate Solutions SSN8800 core registers */ +#define NB8800_TX_CTL1 0x000 +#define TX_TPD BIT(5) +#define TX_APPEND_FCS BIT(4) +#define TX_PAD_EN BIT(3) +#define TX_RETRY_EN BIT(2) +#define TX_EN BIT(0) + +#define NB8800_TX_CTL2 0x001 + +#define NB8800_RX_CTL 0x004 +#define RX_BC_DISABLE BIT(7) +#define RX_RUNT BIT(6) +#define RX_AF_EN BIT(5) +#define RX_PAUSE_EN BIT(3) +#define RX_SEND_CRC BIT(2) +#define RX_PAD_STRIP BIT(1) +#define RX_EN BIT(0) + +#define NB8800_RANDOM_SEED 0x008 +#define NB8800_TX_SDP 0x14 +#define NB8800_TX_TPDP1 0x18 +#define NB8800_TX_TPDP2 0x19 +#define NB8800_SLOT_TIME 0x1c + +#define NB8800_MDIO_CMD 0x020 +#define MDIO_CMD_GO BIT(31) +#define MDIO_CMD_WR BIT(26) +#define MDIO_CMD_ADDR(x) ((x) << 21) +#define MDIO_CMD_REG(x) ((x) << 16) +#define MDIO_CMD_DATA(x) ((x) << 0) + +#define NB8800_MDIO_STS 0x024 +#define MDIO_STS_ERR BIT(31) + +#define NB8800_MC_ADDR(i) (0x028 + (i)) +#define NB8800_MC_INIT 0x02e +#define NB8800_UC_ADDR(i) (0x03c + (i)) + +#define NB8800_MAC_MODE 0x044 +#define RGMII_MODE BIT(7) +#define HALF_DUPLEX BIT(4) +#define BURST_EN BIT(3) +#define LOOPBACK_EN BIT(2) +#define GMAC_MODE BIT(0) + +#define NB8800_IC_THRESHOLD 0x050 +#define NB8800_PE_THRESHOLD 0x051 +#define NB8800_PF_THRESHOLD 0x052 +#define NB8800_TX_BUFSIZE 0x054 +#define NB8800_FIFO_CTL 0x056 +#define NB8800_PQ1 0x060 +#define NB8800_PQ2 0x061 +#define NB8800_SRC_ADDR(i) (0x06a + (i)) +#define NB8800_STAT_DATA 0x078 +#define NB8800_STAT_INDEX 0x07c +#define NB8800_STAT_CLEAR 0x07d + +#define NB8800_SLEEP_MODE 0x07e +#define SLEEP_MODE BIT(0) + +#define NB8800_WAKEUP 0x07f +#define WAKEUP BIT(0) + +/* Aurora NB8800 host interface registers */ +#define NB8800_TXC_CR 0x100 +#define TCR_LK BIT(12) +#define TCR_DS BIT(11) +#define TCR_BTS(x) (((x) & 0x7) << 8) +#define TCR_DIE BIT(7) +#define TCR_TFI(x) (((x) & 0x7) << 4) +#define TCR_LE BIT(3) +#define TCR_RS BIT(2) +#define TCR_DM BIT(1) +#define TCR_EN BIT(0) + +#define NB8800_TXC_SR 0x104 +#define TSR_DE BIT(3) +#define TSR_DI BIT(2) +#define TSR_TO BIT(1) +#define TSR_TI BIT(0) + +#define NB8800_TX_SAR 0x108 +#define NB8800_TX_DESC_ADDR 0x10c + +#define NB8800_TX_REPORT_ADDR 0x110 +#define TX_BYTES_TRANSFERRED(x) (((x) >> 16) & 0xffff) +#define TX_FIRST_DEFERRAL BIT(7) +#define TX_EARLY_COLLISIONS(x) (((x) >> 3) & 0xf) +#define TX_LATE_COLLISION BIT(2) +#define TX_PACKET_DROPPED BIT(1) +#define TX_FIFO_UNDERRUN BIT(0) +#define IS_TX_ERROR(r) ((r) & 0x07) + +#define NB8800_TX_FIFO_SR 0x114 +#define NB8800_TX_ITR 0x118 + +#define NB8800_RXC_CR 0x200 +#define RCR_FL BIT(13) +#define RCR_LK BIT(12) +#define RCR_DS BIT(11) +#define RCR_BTS(x) (((x) & 7) << 8) +#define RCR_DIE BIT(7) +#define RCR_RFI(x) (((x) & 7) << 4) +#define RCR_LE BIT(3) +#define RCR_RS BIT(2) +#define RCR_DM BIT(1) +#define RCR_EN BIT(0) + +#define NB8800_RXC_SR 0x204 +#define RSR_DE BIT(3) +#define RSR_DI BIT(2) +#define RSR_RO BIT(1) +#define RSR_RI BIT(0) + +#define NB8800_RX_SAR 0x208 +#define NB8800_RX_DESC_ADDR 0x20c + +#define NB8800_RX_REPORT_ADDR 0x210 +#define RX_BYTES_TRANSFERRED(x) (((x) >> 16) & 0xFFFF) +#define RX_MULTICAST_PKT BIT(9) +#define RX_BROADCAST_PKT BIT(8) +#define RX_LENGTH_ERR BIT(7) +#define RX_FCS_ERR BIT(6) +#define RX_RUNT_PKT BIT(5) +#define RX_FIFO_OVERRUN BIT(4) +#define RX_LATE_COLLISION BIT(3) +#define RX_ALIGNMENT_ERROR BIT(2) +#define RX_ERROR_MASK 0xfc +#define IS_RX_ERROR(r) ((r) & RX_ERROR_MASK) + +#define NB8800_RX_FIFO_SR 0x214 +#define NB8800_RX_ITR 0x218 + +/* Sigma Designs SMP86xx additional registers */ +#define NB8800_TANGOX_PAD_MODE 0x400 +#define PAD_MODE_MASK 0x7 +#define PAD_MODE_MII 0x0 +#define PAD_MODE_RGMII 0x1 +#define PAD_MODE_GTX_CLK_INV BIT(3) +#define PAD_MODE_GTX_CLK_DELAY BIT(4) + +#define NB8800_TANGOX_MDIO_CLKDIV 0x420 +#define NB8800_TANGOX_RESET 0x424 + +/* Hardware DMA descriptor */ +struct nb8800_dma_desc { + u32 s_addr; /* start address */ + u32 n_addr; /* next descriptor address */ + u32 r_addr; /* report address */ + u32 config; +} __aligned(8); + +#define DESC_ID BIT(23) +#define DESC_EOC BIT(22) +#define DESC_EOF BIT(21) +#define DESC_LK BIT(20) +#define DESC_DS BIT(19) +#define DESC_BTS(x) (((x) & 0x7) << 16) + +/* DMA descriptor and associated data for rx. + * Allocated from coherent memory. + */ +struct nb8800_rx_desc { + /* DMA descriptor */ + struct nb8800_dma_desc desc; + + /* Status report filled in by hardware */ + u32 report; +}; + +/* Address of buffer on rx ring */ +struct nb8800_rx_buf { + struct page *page; + unsigned long offset; +}; + +/* DMA descriptors and associated data for tx. + * Allocated from coherent memory. + */ +struct nb8800_tx_desc { + /* DMA descriptor. The second descriptor is used if packet + * data is unaligned. + */ + struct nb8800_dma_desc desc[2]; + + /* Status report filled in by hardware */ + u32 report; + + /* Bounce buffer for initial unaligned part of packet */ + u8 buf[8] __aligned(8); +}; + +/* Packet in tx queue */ +struct nb8800_tx_buf { + /* Currently queued skb */ + struct sk_buff *skb; + + /* DMA address of the first descriptor */ + dma_addr_t dma_desc; + + /* DMA address of packet data */ + dma_addr_t dma_addr; + + /* Length of DMA mapping, less than skb->len if alignment + * buffer is used. + */ + unsigned int dma_len; + + /* Number of packets in chain starting here */ + unsigned int chain_len; + + /* Packet chain ready to be submitted to hardware */ + bool ready; +}; + +struct nb8800_priv { + struct napi_struct napi; + + void __iomem *base; + + /* RX DMA descriptors */ + struct nb8800_rx_desc *rx_descs; + + /* RX buffers referenced by DMA descriptors */ + struct nb8800_rx_buf *rx_bufs; + + /* Current end of chain */ + u32 rx_eoc; + + /* Value for rx interrupt time register in NAPI interrupt mode */ + u32 rx_itr_irq; + + /* Value for rx interrupt time register in NAPI poll mode */ + u32 rx_itr_poll; + + /* Value for config field of rx DMA descriptors */ + u32 rx_dma_config; + + /* TX DMA descriptors */ + struct nb8800_tx_desc *tx_descs; + + /* TX packet queue */ + struct nb8800_tx_buf *tx_bufs; + + /* Number of free tx queue entries */ + atomic_t tx_free; + + /* First free tx queue entry */ + u32 tx_next; + + /* Next buffer to transmit */ + u32 tx_queue; + + /* Start of current packet chain */ + struct nb8800_tx_buf *tx_chain; + + /* Next buffer to reclaim */ + u32 tx_done; + + /* Lock for DMA activation */ + spinlock_t tx_lock; + + struct mii_bus *mii_bus; + struct device_node *phy_node; + struct phy_device *phydev; + + /* PHY connection type from DT */ + int phy_mode; + + /* Current link status */ + int speed; + int duplex; + int link; + + /* Pause settings */ + bool pause_aneg; + bool pause_rx; + bool pause_tx; + + /* DMA base address of rx descriptors, see rx_descs above */ + dma_addr_t rx_desc_dma; + + /* DMA base address of tx descriptors, see tx_descs above */ + dma_addr_t tx_desc_dma; + + struct clk *clk; +}; + +struct nb8800_ops { + int (*init)(struct net_device *dev); + int (*reset)(struct net_device *dev); +}; + +#endif /* _NB8800_H_ */ -- cgit v1.2.3 From 1a47de6e4a8dc2aaf3c3fb544b60730b74abe0f1 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 20 Nov 2015 15:57:07 -0800 Subject: various: fix pci_set_dma_mask return value checking pci_set_dma_mask returns a negative errno value, not a bool like pci_dma_supported. This of course was just a giant test for attention :) Signed-off-by: Christoph Hellwig Reported-by: Jongman Heo Tested-by: Jongman Heo [pcnet32] Acked-by: Mauro Carvalho Chehab Cc: Hans Verkuil Cc: Antti Palosaari Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/media/pci/cx23885/cx23885-core.c | 4 ++-- drivers/media/pci/cx25821/cx25821-core.c | 3 ++- drivers/media/pci/cx88/cx88-alsa.c | 4 ++-- drivers/media/pci/cx88/cx88-mpeg.c | 3 ++- drivers/media/pci/cx88/cx88-video.c | 4 ++-- drivers/media/pci/netup_unidvb/netup_unidvb_core.c | 2 +- drivers/media/pci/saa7134/saa7134-core.c | 4 ++-- drivers/media/pci/saa7164/saa7164-core.c | 4 ++-- drivers/media/pci/tw68/tw68-core.c | 4 ++-- drivers/net/ethernet/amd/pcnet32.c | 5 +++-- 10 files changed, 20 insertions(+), 17 deletions(-) (limited to 'drivers/net') diff --git a/drivers/media/pci/cx23885/cx23885-core.c b/drivers/media/pci/cx23885/cx23885-core.c index 35759a91d47d..e8f847226a19 100644 --- a/drivers/media/pci/cx23885/cx23885-core.c +++ b/drivers/media/pci/cx23885/cx23885-core.c @@ -1992,9 +1992,9 @@ static int cx23885_initdev(struct pci_dev *pci_dev, (unsigned long long)pci_resource_start(pci_dev, 0)); pci_set_master(pci_dev); - if (!pci_set_dma_mask(pci_dev, 0xffffffff)) { + err = pci_set_dma_mask(pci_dev, 0xffffffff); + if (err) { printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name); - err = -EIO; goto fail_context; } diff --git a/drivers/media/pci/cx25821/cx25821-core.c b/drivers/media/pci/cx25821/cx25821-core.c index dbc695f32760..0042803a9de7 100644 --- a/drivers/media/pci/cx25821/cx25821-core.c +++ b/drivers/media/pci/cx25821/cx25821-core.c @@ -1319,7 +1319,8 @@ static int cx25821_initdev(struct pci_dev *pci_dev, dev->pci_lat, (unsigned long long)dev->base_io_addr); pci_set_master(pci_dev); - if (!pci_set_dma_mask(pci_dev, 0xffffffff)) { + err = pci_set_dma_mask(pci_dev, 0xffffffff); + if (err) { pr_err("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name); err = -EIO; goto fail_irq; diff --git a/drivers/media/pci/cx88/cx88-alsa.c b/drivers/media/pci/cx88/cx88-alsa.c index 0ed1b6530374..1b5268f9bb24 100644 --- a/drivers/media/pci/cx88/cx88-alsa.c +++ b/drivers/media/pci/cx88/cx88-alsa.c @@ -890,9 +890,9 @@ static int snd_cx88_create(struct snd_card *card, struct pci_dev *pci, return err; } - if (!pci_set_dma_mask(pci,DMA_BIT_MASK(32))) { + err = pci_set_dma_mask(pci,DMA_BIT_MASK(32)); + if (err) { dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name); - err = -EIO; cx88_core_put(core, pci); return err; } diff --git a/drivers/media/pci/cx88/cx88-mpeg.c b/drivers/media/pci/cx88/cx88-mpeg.c index 9db7767d1fe0..f34c229f9b37 100644 --- a/drivers/media/pci/cx88/cx88-mpeg.c +++ b/drivers/media/pci/cx88/cx88-mpeg.c @@ -393,7 +393,8 @@ static int cx8802_init_common(struct cx8802_dev *dev) if (pci_enable_device(dev->pci)) return -EIO; pci_set_master(dev->pci); - if (!pci_set_dma_mask(dev->pci,DMA_BIT_MASK(32))) { + err = pci_set_dma_mask(dev->pci,DMA_BIT_MASK(32)); + if (err) { printk("%s/2: Oops: no 32bit PCI DMA ???\n",dev->core->name); return -EIO; } diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c index 0de1ad5a977d..aef9acf351f6 100644 --- a/drivers/media/pci/cx88/cx88-video.c +++ b/drivers/media/pci/cx88/cx88-video.c @@ -1314,9 +1314,9 @@ static int cx8800_initdev(struct pci_dev *pci_dev, dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0)); pci_set_master(pci_dev); - if (!pci_set_dma_mask(pci_dev,DMA_BIT_MASK(32))) { + err = pci_set_dma_mask(pci_dev,DMA_BIT_MASK(32)); + if (err) { printk("%s/0: Oops: no 32bit PCI DMA ???\n",core->name); - err = -EIO; goto fail_core; } dev->alloc_ctx = vb2_dma_sg_init_ctx(&pci_dev->dev); diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c index 60b2d462f98d..3fdbd81b5580 100644 --- a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c +++ b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c @@ -810,7 +810,7 @@ static int netup_unidvb_initdev(struct pci_dev *pci_dev, "%s(): board vendor 0x%x, revision 0x%x\n", __func__, board_vendor, board_revision); pci_set_master(pci_dev); - if (!pci_set_dma_mask(pci_dev, 0xffffffff)) { + if (pci_set_dma_mask(pci_dev, 0xffffffff) < 0) { dev_err(&pci_dev->dev, "%s(): 32bit PCI DMA is not supported\n", __func__); goto pci_detect_err; diff --git a/drivers/media/pci/saa7134/saa7134-core.c b/drivers/media/pci/saa7134/saa7134-core.c index e79d63eb774e..f720cea80e28 100644 --- a/drivers/media/pci/saa7134/saa7134-core.c +++ b/drivers/media/pci/saa7134/saa7134-core.c @@ -951,9 +951,9 @@ static int saa7134_initdev(struct pci_dev *pci_dev, pci_name(pci_dev), dev->pci_rev, pci_dev->irq, dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0)); pci_set_master(pci_dev); - if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) { + err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32)); + if (err) { pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name); - err = -EIO; goto fail1; } diff --git a/drivers/media/pci/saa7164/saa7164-core.c b/drivers/media/pci/saa7164/saa7164-core.c index 8f36b48ef733..8bbd092fbe1d 100644 --- a/drivers/media/pci/saa7164/saa7164-core.c +++ b/drivers/media/pci/saa7164/saa7164-core.c @@ -1264,9 +1264,9 @@ static int saa7164_initdev(struct pci_dev *pci_dev, pci_set_master(pci_dev); /* TODO */ - if (!pci_set_dma_mask(pci_dev, 0xffffffff)) { + err = pci_set_dma_mask(pci_dev, 0xffffffff); + if (err) { printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name); - err = -EIO; goto fail_irq; } diff --git a/drivers/media/pci/tw68/tw68-core.c b/drivers/media/pci/tw68/tw68-core.c index 8c5655d351d3..4e77618fbb2b 100644 --- a/drivers/media/pci/tw68/tw68-core.c +++ b/drivers/media/pci/tw68/tw68-core.c @@ -257,9 +257,9 @@ static int tw68_initdev(struct pci_dev *pci_dev, dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq, dev->pci_lat, (u64)pci_resource_start(pci_dev, 0)); pci_set_master(pci_dev); - if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) { + err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32)); + if (err) { pr_info("%s: Oops: no 32bit PCI DMA ???\n", dev->name); - err = -EIO; goto fail1; } diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c index e2afabf3a465..7ccebae9cb48 100644 --- a/drivers/net/ethernet/amd/pcnet32.c +++ b/drivers/net/ethernet/amd/pcnet32.c @@ -1500,10 +1500,11 @@ pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent) return -ENODEV; } - if (!pci_set_dma_mask(pdev, PCNET32_DMA_MASK)) { + err = pci_set_dma_mask(pdev, PCNET32_DMA_MASK); + if (err) { if (pcnet32_debug & NETIF_MSG_PROBE) pr_err("architecture does not support 32bit PCI busmaster DMA\n"); - return -ENODEV; + return err; } if (!request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci")) { if (pcnet32_debug & NETIF_MSG_PROBE) -- cgit v1.2.3 From 7cecd9ab80f43972c056dc068338f7bcc407b71c Mon Sep 17 00:00:00 2001 From: Mirza Krak Date: Tue, 10 Nov 2015 14:59:34 +0100 Subject: can: sja1000: clear interrupts on start According to SJA1000 data sheet error-warning (EI) interrupt is not cleared by setting the controller in to reset-mode. Then if we have the following case: - system is suspended (echo mem > /sys/power/state) and SJA1000 is left in operating state - A bus error condition occurs which activates EI interrupt, system is still suspended which means EI interrupt will be not be handled nor cleared. If the above two events occur, on resume there is no way to return the SJA1000 to operating state, except to cycle power to it. By simply reading the IR register on start we will clear any previous conditions that could be present. Signed-off-by: Mirza Krak Reported-by: Christian Magnusson Cc: linux-stable Signed-off-by: Marc Kleine-Budde --- drivers/net/can/sja1000/sja1000.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index 7b92e911a616..f10834be48a5 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -218,6 +218,9 @@ static void sja1000_start(struct net_device *dev) priv->write_reg(priv, SJA1000_RXERR, 0x0); priv->read_reg(priv, SJA1000_ECC); + /* clear interrupt flags */ + priv->read_reg(priv, SJA1000_IR); + /* leave reset mode */ set_normal_mode(dev); } -- cgit v1.2.3 From ffd461f80d536336811d573f197f3e6d9872d054 Mon Sep 17 00:00:00 2001 From: Oliver Hartkopp Date: Sat, 21 Nov 2015 18:41:20 +0100 Subject: can: fix assignment of error location in CAN error messages As Dan Carpenter reported in http://marc.info/?l=linux-can&m=144793696016187 the assignment of the error location in CAN error messages had some bit wise overlaps. Indeed the value to be assigned in data[3] is no bitfield but defines a single value which points to a location inside the CAN frame on the wire. This patch fixes the assignments for the error locations in error messages. Reported-by: Dan Carpenter Signed-off-by: Oliver Hartkopp Signed-off-by: Marc Kleine-Budde --- drivers/net/can/c_can/c_can.c | 6 ++---- drivers/net/can/cc770/cc770.c | 2 +- drivers/net/can/flexcan.c | 4 ++-- drivers/net/can/m_can/m_can.c | 6 ++---- drivers/net/can/pch_can.c | 3 +-- drivers/net/can/rcar_can.c | 6 +++--- drivers/net/can/ti_hecc.c | 6 ++---- drivers/net/can/usb/kvaser_usb.c | 5 ++--- drivers/net/can/usb/usb_8dev.c | 3 +-- drivers/net/can/xilinx_can.c | 5 ++--- 10 files changed, 18 insertions(+), 28 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c index 5d214d135332..7c9892ab0a6a 100644 --- a/drivers/net/can/c_can/c_can.c +++ b/drivers/net/can/c_can/c_can.c @@ -975,8 +975,7 @@ static int c_can_handle_bus_err(struct net_device *dev, break; case LEC_ACK_ERROR: netdev_dbg(dev, "ack error\n"); - cf->data[3] |= (CAN_ERR_PROT_LOC_ACK | - CAN_ERR_PROT_LOC_ACK_DEL); + cf->data[3] = CAN_ERR_PROT_LOC_ACK; break; case LEC_BIT1_ERROR: netdev_dbg(dev, "bit1 error\n"); @@ -988,8 +987,7 @@ static int c_can_handle_bus_err(struct net_device *dev, break; case LEC_CRC_ERROR: netdev_dbg(dev, "CRC error\n"); - cf->data[3] |= (CAN_ERR_PROT_LOC_CRC_SEQ | - CAN_ERR_PROT_LOC_CRC_DEL); + cf->data[3] = CAN_ERR_PROT_LOC_CRC_SEQ; break; default: break; diff --git a/drivers/net/can/cc770/cc770.c b/drivers/net/can/cc770/cc770.c index 70a8cbb29e75..1e37313054f3 100644 --- a/drivers/net/can/cc770/cc770.c +++ b/drivers/net/can/cc770/cc770.c @@ -578,7 +578,7 @@ static int cc770_err(struct net_device *dev, u8 status) cf->data[2] |= CAN_ERR_PROT_BIT0; break; case STAT_LEC_CRC: - cf->data[3] |= CAN_ERR_PROT_LOC_CRC_SEQ; + cf->data[3] = CAN_ERR_PROT_LOC_CRC_SEQ; break; } } diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 868fe945e35a..41c0fc9f3b14 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -535,13 +535,13 @@ static void do_bus_err(struct net_device *dev, if (reg_esr & FLEXCAN_ESR_ACK_ERR) { netdev_dbg(dev, "ACK_ERR irq\n"); cf->can_id |= CAN_ERR_ACK; - cf->data[3] |= CAN_ERR_PROT_LOC_ACK; + cf->data[3] = CAN_ERR_PROT_LOC_ACK; tx_errors = 1; } if (reg_esr & FLEXCAN_ESR_CRC_ERR) { netdev_dbg(dev, "CRC_ERR irq\n"); cf->data[2] |= CAN_ERR_PROT_BIT; - cf->data[3] |= CAN_ERR_PROT_LOC_CRC_SEQ; + cf->data[3] = CAN_ERR_PROT_LOC_CRC_SEQ; rx_errors = 1; } if (reg_esr & FLEXCAN_ESR_FRM_ERR) { diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index ef655177bb5e..9dd3ca7a73aa 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -500,8 +500,7 @@ static int m_can_handle_lec_err(struct net_device *dev, break; case LEC_ACK_ERROR: netdev_dbg(dev, "ack error\n"); - cf->data[3] |= (CAN_ERR_PROT_LOC_ACK | - CAN_ERR_PROT_LOC_ACK_DEL); + cf->data[3] = CAN_ERR_PROT_LOC_ACK; break; case LEC_BIT1_ERROR: netdev_dbg(dev, "bit1 error\n"); @@ -513,8 +512,7 @@ static int m_can_handle_lec_err(struct net_device *dev, break; case LEC_CRC_ERROR: netdev_dbg(dev, "CRC error\n"); - cf->data[3] |= (CAN_ERR_PROT_LOC_CRC_SEQ | - CAN_ERR_PROT_LOC_CRC_DEL); + cf->data[3] = CAN_ERR_PROT_LOC_CRC_SEQ; break; default: break; diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index e187ca783da0..c1317889d3d8 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -559,8 +559,7 @@ static void pch_can_error(struct net_device *ndev, u32 status) stats->rx_errors++; break; case PCH_CRC_ERR: - cf->data[3] |= CAN_ERR_PROT_LOC_CRC_SEQ | - CAN_ERR_PROT_LOC_CRC_DEL; + cf->data[3] = CAN_ERR_PROT_LOC_CRC_SEQ; priv->can.can_stats.bus_error++; stats->rx_errors++; break; diff --git a/drivers/net/can/rcar_can.c b/drivers/net/can/rcar_can.c index 7bd54191f962..9161f045d44c 100644 --- a/drivers/net/can/rcar_can.c +++ b/drivers/net/can/rcar_can.c @@ -251,7 +251,7 @@ static void rcar_can_error(struct net_device *ndev) tx_errors++; writeb(~RCAR_CAN_ECSR_ADEF, &priv->regs->ecsr); if (skb) - cf->data[3] |= CAN_ERR_PROT_LOC_ACK_DEL; + cf->data[3] = CAN_ERR_PROT_LOC_ACK_DEL; } if (ecsr & RCAR_CAN_ECSR_BE0F) { netdev_dbg(priv->ndev, "Bit Error (dominant)\n"); @@ -272,7 +272,7 @@ static void rcar_can_error(struct net_device *ndev) rx_errors++; writeb(~RCAR_CAN_ECSR_CEF, &priv->regs->ecsr); if (skb) - cf->data[3] |= CAN_ERR_PROT_LOC_CRC_SEQ; + cf->data[3] = CAN_ERR_PROT_LOC_CRC_SEQ; } if (ecsr & RCAR_CAN_ECSR_AEF) { netdev_dbg(priv->ndev, "ACK Error\n"); @@ -280,7 +280,7 @@ static void rcar_can_error(struct net_device *ndev) writeb(~RCAR_CAN_ECSR_AEF, &priv->regs->ecsr); if (skb) { cf->can_id |= CAN_ERR_ACK; - cf->data[3] |= CAN_ERR_PROT_LOC_ACK; + cf->data[3] = CAN_ERR_PROT_LOC_ACK; } } if (ecsr & RCAR_CAN_ECSR_FEF) { diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index cf345cbfe819..6eab4fe7e872 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -737,13 +737,11 @@ static int ti_hecc_error(struct net_device *ndev, int int_status, } if (err_status & HECC_CANES_CRCE) { hecc_set_bit(priv, HECC_CANES, HECC_CANES_CRCE); - cf->data[3] |= CAN_ERR_PROT_LOC_CRC_SEQ | - CAN_ERR_PROT_LOC_CRC_DEL; + cf->data[3] = CAN_ERR_PROT_LOC_CRC_SEQ; } if (err_status & HECC_CANES_ACKE) { hecc_set_bit(priv, HECC_CANES, HECC_CANES_ACKE); - cf->data[3] |= CAN_ERR_PROT_LOC_ACK | - CAN_ERR_PROT_LOC_ACK_DEL; + cf->data[3] = CAN_ERR_PROT_LOC_ACK; } } diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c index 8b17a9065b0b..022bfa13ebfa 100644 --- a/drivers/net/can/usb/kvaser_usb.c +++ b/drivers/net/can/usb/kvaser_usb.c @@ -944,10 +944,9 @@ static void kvaser_usb_rx_error(const struct kvaser_usb *dev, cf->can_id |= CAN_ERR_BUSERROR | CAN_ERR_PROT; if (es->leaf.error_factor & M16C_EF_ACKE) - cf->data[3] |= (CAN_ERR_PROT_LOC_ACK); + cf->data[3] = CAN_ERR_PROT_LOC_ACK; if (es->leaf.error_factor & M16C_EF_CRCE) - cf->data[3] |= (CAN_ERR_PROT_LOC_CRC_SEQ | - CAN_ERR_PROT_LOC_CRC_DEL); + cf->data[3] = CAN_ERR_PROT_LOC_CRC_SEQ; if (es->leaf.error_factor & M16C_EF_FORME) cf->data[2] |= CAN_ERR_PROT_FORM; if (es->leaf.error_factor & M16C_EF_STFE) diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c index de95b1ccba3e..017ae5002169 100644 --- a/drivers/net/can/usb/usb_8dev.c +++ b/drivers/net/can/usb/usb_8dev.c @@ -402,8 +402,7 @@ static void usb_8dev_rx_err_msg(struct usb_8dev_priv *priv, break; case USB_8DEV_STATUSMSG_CRC: cf->data[2] |= CAN_ERR_PROT_UNSPEC; - cf->data[3] |= CAN_ERR_PROT_LOC_CRC_SEQ | - CAN_ERR_PROT_LOC_CRC_DEL; + cf->data[3] = CAN_ERR_PROT_LOC_CRC_SEQ; rx_errors = 1; break; case USB_8DEV_STATUSMSG_BIT0: diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c index fc55e8e0351d..4c57ddf12684 100644 --- a/drivers/net/can/xilinx_can.c +++ b/drivers/net/can/xilinx_can.c @@ -618,7 +618,7 @@ static void xcan_err_interrupt(struct net_device *ndev, u32 isr) stats->tx_errors++; if (skb) { cf->can_id |= CAN_ERR_ACK; - cf->data[3] |= CAN_ERR_PROT_LOC_ACK; + cf->data[3] = CAN_ERR_PROT_LOC_ACK; } } @@ -654,8 +654,7 @@ static void xcan_err_interrupt(struct net_device *ndev, u32 isr) stats->rx_errors++; if (skb) { cf->can_id |= CAN_ERR_PROT; - cf->data[3] = CAN_ERR_PROT_LOC_CRC_SEQ | - CAN_ERR_PROT_LOC_CRC_DEL; + cf->data[3] = CAN_ERR_PROT_LOC_CRC_SEQ; } } priv->can.can_stats.bus_error++; -- cgit v1.2.3 From a2ec19f888f1fb06e2424486423a16f86ad1fcc4 Mon Sep 17 00:00:00 2001 From: Oliver Hartkopp Date: Sat, 21 Nov 2015 18:41:21 +0100 Subject: can: remove obsolete assignment for CAN protocol error type The assignment 'cf->data[2] |= CAN_ERR_PROT_UNSPEC' used at CAN error message creation time is obsolete as CAN_ERR_PROT_UNSPEC is zero and cf->data[2] is initialized with zero in alloc_can_err_skb() anyway. So we could either assign 'cf->data[2] = CAN_ERR_PROT_UNSPEC' correctly or we can remove the obsolete OR operation entirely. Signed-off-by: Oliver Hartkopp Signed-off-by: Marc Kleine-Budde --- drivers/net/can/bfin_can.c | 2 -- drivers/net/can/c_can/c_can.c | 1 - drivers/net/can/janz-ican3.c | 1 - drivers/net/can/m_can/m_can.c | 1 - drivers/net/can/rcar_can.c | 5 ++--- drivers/net/can/sja1000/sja1000.c | 1 - drivers/net/can/sun4i_can.c | 1 - drivers/net/can/ti_hecc.c | 1 - drivers/net/can/usb/ems_usb.c | 1 - drivers/net/can/usb/esd_usb2.c | 1 - drivers/net/can/usb/usb_8dev.c | 1 - drivers/net/can/xilinx_can.c | 4 +--- 12 files changed, 3 insertions(+), 17 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/can/bfin_can.c b/drivers/net/can/bfin_can.c index 57dadd52b428..1deb8ff90a89 100644 --- a/drivers/net/can/bfin_can.c +++ b/drivers/net/can/bfin_can.c @@ -501,8 +501,6 @@ static int bfin_can_err(struct net_device *dev, u16 isrc, u16 status) cf->data[2] |= CAN_ERR_PROT_FORM; else if (status & SER) cf->data[2] |= CAN_ERR_PROT_STUFF; - else - cf->data[2] |= CAN_ERR_PROT_UNSPEC; } priv->can.state = state; diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c index 7c9892ab0a6a..f91b094288da 100644 --- a/drivers/net/can/c_can/c_can.c +++ b/drivers/net/can/c_can/c_can.c @@ -962,7 +962,6 @@ static int c_can_handle_bus_err(struct net_device *dev, * type of the last error to occur on the CAN bus */ cf->can_id |= CAN_ERR_PROT | CAN_ERR_BUSERROR; - cf->data[2] |= CAN_ERR_PROT_UNSPEC; switch (lec_type) { case LEC_STUFF_ERROR: diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c index c1e85368a198..5d04f5464faf 100644 --- a/drivers/net/can/janz-ican3.c +++ b/drivers/net/can/janz-ican3.c @@ -1096,7 +1096,6 @@ static int ican3_handle_cevtind(struct ican3_dev *mod, struct ican3_msg *msg) cf->data[2] |= CAN_ERR_PROT_STUFF; break; default: - cf->data[2] |= CAN_ERR_PROT_UNSPEC; cf->data[3] = ecc & ECC_SEG; break; } diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index 9dd3ca7a73aa..39cf911f7a1e 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -487,7 +487,6 @@ static int m_can_handle_lec_err(struct net_device *dev, * type of the last error to occur on the CAN bus */ cf->can_id |= CAN_ERR_PROT | CAN_ERR_BUSERROR; - cf->data[2] |= CAN_ERR_PROT_UNSPEC; switch (lec_type) { case LEC_STUFF_ERROR: diff --git a/drivers/net/can/rcar_can.c b/drivers/net/can/rcar_can.c index 9161f045d44c..bc46be39549d 100644 --- a/drivers/net/can/rcar_can.c +++ b/drivers/net/can/rcar_can.c @@ -241,10 +241,9 @@ static void rcar_can_error(struct net_device *ndev) u8 ecsr; netdev_dbg(priv->ndev, "Bus error interrupt:\n"); - if (skb) { + if (skb) cf->can_id |= CAN_ERR_BUSERROR | CAN_ERR_PROT; - cf->data[2] = CAN_ERR_PROT_UNSPEC; - } + ecsr = readb(&priv->regs->ecsr); if (ecsr & RCAR_CAN_ECSR_ADEF) { netdev_dbg(priv->ndev, "ACK Delimiter Error\n"); diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index f10834be48a5..8dda3b703d39 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -449,7 +449,6 @@ static int sja1000_err(struct net_device *dev, uint8_t isrc, uint8_t status) cf->data[2] |= CAN_ERR_PROT_STUFF; break; default: - cf->data[2] |= CAN_ERR_PROT_UNSPEC; cf->data[3] = ecc & ECC_SEG; break; } diff --git a/drivers/net/can/sun4i_can.c b/drivers/net/can/sun4i_can.c index d9a42c646783..68ef0a4cd821 100644 --- a/drivers/net/can/sun4i_can.c +++ b/drivers/net/can/sun4i_can.c @@ -575,7 +575,6 @@ static int sun4i_can_err(struct net_device *dev, u8 isrc, u8 status) cf->data[2] |= CAN_ERR_PROT_STUFF; break; default: - cf->data[2] |= CAN_ERR_PROT_UNSPEC; cf->data[3] = (ecc & SUN4I_STA_ERR_SEG_CODE) >> 16; break; diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index 6eab4fe7e872..680d1ff07a55 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -722,7 +722,6 @@ static int ti_hecc_error(struct net_device *ndev, int int_status, if (err_status & HECC_BUS_ERROR) { ++priv->can.can_stats.bus_error; cf->can_id |= CAN_ERR_BUSERROR | CAN_ERR_PROT; - cf->data[2] |= CAN_ERR_PROT_UNSPEC; if (err_status & HECC_CANES_FE) { hecc_set_bit(priv, HECC_CANES, HECC_CANES_FE); cf->data[2] |= CAN_ERR_PROT_FORM; diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index 2d390384ef3b..fc5b75675cd8 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -377,7 +377,6 @@ static void ems_usb_rx_err(struct ems_usb *dev, struct ems_cpc_msg *msg) cf->data[2] |= CAN_ERR_PROT_STUFF; break; default: - cf->data[2] |= CAN_ERR_PROT_UNSPEC; cf->data[3] = ecc & SJA1000_ECC_SEG; break; } diff --git a/drivers/net/can/usb/esd_usb2.c b/drivers/net/can/usb/esd_usb2.c index 0e5a4493ba4f..113e64fcd73b 100644 --- a/drivers/net/can/usb/esd_usb2.c +++ b/drivers/net/can/usb/esd_usb2.c @@ -282,7 +282,6 @@ static void esd_usb2_rx_event(struct esd_usb2_net_priv *priv, cf->data[2] |= CAN_ERR_PROT_STUFF; break; default: - cf->data[2] |= CAN_ERR_PROT_UNSPEC; cf->data[3] = ecc & SJA1000_ECC_SEG; break; } diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c index 017ae5002169..a731720f1d13 100644 --- a/drivers/net/can/usb/usb_8dev.c +++ b/drivers/net/can/usb/usb_8dev.c @@ -401,7 +401,6 @@ static void usb_8dev_rx_err_msg(struct usb_8dev_priv *priv, tx_errors = 1; break; case USB_8DEV_STATUSMSG_CRC: - cf->data[2] |= CAN_ERR_PROT_UNSPEC; cf->data[3] = CAN_ERR_PROT_LOC_CRC_SEQ; rx_errors = 1; break; diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c index 4c57ddf12684..51670b322409 100644 --- a/drivers/net/can/xilinx_can.c +++ b/drivers/net/can/xilinx_can.c @@ -608,10 +608,8 @@ static void xcan_err_interrupt(struct net_device *ndev, u32 isr) /* Check for error interrupt */ if (isr & XCAN_IXR_ERROR_MASK) { - if (skb) { + if (skb) cf->can_id |= CAN_ERR_PROT | CAN_ERR_BUSERROR; - cf->data[2] |= CAN_ERR_PROT_UNSPEC; - } /* Check for Ack error interrupt */ if (err_status & XCAN_ESR_ACKER_MASK) { -- cgit v1.2.3 From fe761bcb9046029dbdb277de41e40c1c5ad0cf8c Mon Sep 17 00:00:00 2001 From: Shaohui Xie Date: Fri, 20 Nov 2015 11:54:08 +0800 Subject: net: fsl: expands dependencies of NET_VENDOR_FREESCALE Freescale hosts some ARMv8 based SoCs, and a generic convention ARCH_LAYERSCAPE is used to cover such SoCs. Adding ARCH_LAYERSCAPE to dependencies of NET_VENDOR_FREESCALE to support networking on those SoCs. The ARCH_LAYERSCAPE is introduced by: commit: 53a5fde05 arm64: Use generic Layerscape SoC family naming Signed-off-by: Shaohui Xie Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/freescale/Kconfig b/drivers/net/ethernet/freescale/Kconfig index ff76d4e9dc1b..bee32a9d9876 100644 --- a/drivers/net/ethernet/freescale/Kconfig +++ b/drivers/net/ethernet/freescale/Kconfig @@ -7,7 +7,8 @@ config NET_VENDOR_FREESCALE default y depends on FSL_SOC || QUICC_ENGINE || CPM1 || CPM2 || PPC_MPC512x || \ M523x || M527x || M5272 || M528x || M520x || M532x || \ - ARCH_MXC || ARCH_MXS || (PPC_MPC52xx && PPC_BESTCOMM) + ARCH_MXC || ARCH_MXS || (PPC_MPC52xx && PPC_BESTCOMM) || \ + ARCH_LAYERSCAPE ---help--- If you have a network (Ethernet) card belonging to this class, say Y. -- cgit v1.2.3 From 7f109f7cc37108cba7243bc832988525b0d85909 Mon Sep 17 00:00:00 2001 From: Nikolay Aleksandrov Date: Sat, 21 Nov 2015 19:46:19 +0100 Subject: vrf: fix double free and memory corruption on register_netdevice failure When vrf's ->newlink is called, if register_netdevice() fails then it does free_netdev(), but that's also done by rtnl_newlink() so a second free happens and memory gets corrupted, to reproduce execute the following line a couple of times (1 - 5 usually is enough): $ for i in `seq 1 5`; do ip link add vrf: type vrf table 1; done; This works because we fail in register_netdevice() because of the wrong name "vrf:". And here's a trace of one crash: [ 28.792157] ------------[ cut here ]------------ [ 28.792407] kernel BUG at fs/namei.c:246! [ 28.792608] invalid opcode: 0000 [#1] SMP [ 28.793240] Modules linked in: vrf nfsd auth_rpcgss oid_registry nfs_acl nfs lockd grace sunrpc crct10dif_pclmul crc32_pclmul crc32c_intel qxl drm_kms_helper ttm drm aesni_intel aes_x86_64 psmouse glue_helper lrw evdev gf128mul i2c_piix4 ablk_helper cryptd ppdev parport_pc parport serio_raw pcspkr virtio_balloon virtio_console i2c_core acpi_cpufreq button 9pnet_virtio 9p 9pnet fscache ipv6 autofs4 ext4 crc16 mbcache jbd2 virtio_blk virtio_net sg sr_mod cdrom ata_generic ehci_pci uhci_hcd ehci_hcd e1000 usbcore usb_common ata_piix libata virtio_pci virtio_ring virtio scsi_mod floppy [ 28.796016] CPU: 0 PID: 1148 Comm: ld-linux-x86-64 Not tainted 4.4.0-rc1+ #24 [ 28.796016] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.1-20150318_183358- 04/01/2014 [ 28.796016] task: ffff8800352561c0 ti: ffff88003592c000 task.ti: ffff88003592c000 [ 28.796016] RIP: 0010:[] [] putname+0x43/0x60 [ 28.796016] RSP: 0018:ffff88003592fe88 EFLAGS: 00010246 [ 28.796016] RAX: 0000000000000000 RBX: ffff8800352561c0 RCX: 0000000000000001 [ 28.796016] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88003784f000 [ 28.796016] RBP: ffff88003592ff08 R08: 0000000000000001 R09: 0000000000000000 [ 28.796016] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 [ 28.796016] R13: 000000000000047c R14: ffff88003784f000 R15: ffff8800358c4a00 [ 28.796016] FS: 0000000000000000(0000) GS:ffff88003fc00000(0000) knlGS:0000000000000000 [ 28.796016] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.796016] CR2: 00007ffd583bc2d9 CR3: 0000000035a99000 CR4: 00000000000406f0 [ 28.796016] Stack: [ 28.796016] ffffffff8121045d ffffffff812102d3 ffff8800352561c0 ffff880035a91660 [ 28.796016] ffff8800008a9880 0000000000000000 ffffffff81a49940 00ffffff81218684 [ 28.796016] ffff8800352561c0 000000000000047c 0000000000000000 ffff880035b36d80 [ 28.796016] Call Trace: [ 28.796016] [] ? do_execveat_common.isra.34+0x74d/0x930 [ 28.796016] [] ? do_execveat_common.isra.34+0x5c3/0x930 [ 28.796016] [] do_execve+0x2c/0x30 [ 28.796016] [] call_usermodehelper_exec_async+0xf0/0x140 [ 28.796016] [] ? umh_complete+0x40/0x40 [ 28.796016] [] ret_from_fork+0x3f/0x70 [ 28.796016] Code: 48 8d 47 1c 48 89 e5 53 48 8b 37 48 89 fb 48 39 c6 74 1a 48 8b 3d 7e e9 8f 00 e8 49 fa fc ff 48 89 df e8 f1 01 fd ff 5b 5d f3 c3 <0f> 0b 48 89 fe 48 8b 3d 61 e9 8f 00 e8 2c fa fc ff 5b 5d eb e9 [ 28.796016] RIP [] putname+0x43/0x60 [ 28.796016] RSP Fixes: 193125dbd8eb ("net: Introduce VRF device driver") Signed-off-by: Nikolay Aleksandrov Acked-by: David Ahern Signed-off-by: David S. Miller --- drivers/net/vrf.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c index 92fa3e1ea65c..4f9748457f5a 100644 --- a/drivers/net/vrf.c +++ b/drivers/net/vrf.c @@ -907,7 +907,6 @@ static int vrf_newlink(struct net *src_net, struct net_device *dev, struct nlattr *tb[], struct nlattr *data[]) { struct net_vrf *vrf = netdev_priv(dev); - int err; if (!data || !data[IFLA_VRF_TABLE]) return -EINVAL; @@ -916,15 +915,7 @@ static int vrf_newlink(struct net *src_net, struct net_device *dev, dev->priv_flags |= IFF_L3MDEV_MASTER; - err = register_netdevice(dev); - if (err < 0) - goto out_fail; - - return 0; - -out_fail: - free_netdev(dev); - return err; + return register_netdevice(dev); } static size_t vrf_nl_getsize(const struct net_device *dev) -- cgit v1.2.3 From 3c25a860d17b7378822f35d8c9141db9507e3beb Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Sun, 22 Nov 2015 01:08:54 +0200 Subject: broadcom: fix PHY_ID_BCM5481 entry in the id table Commit fcb26ec5b18d ("broadcom: move all PHY_ID's to header") updated broadcom_tbl to use PHY_IDs, but incorrectly replaced 0x0143bca0 with PHY_ID_BCM5482 (making a duplicate entry, and completely omitting the original). Fix that. Fixes: fcb26ec5b18d ("broadcom: move all PHY_ID's to header") Signed-off-by: Aaro Koskinen Signed-off-by: David S. Miller --- drivers/net/phy/broadcom.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c index 07a6119121c3..3ce5d9514623 100644 --- a/drivers/net/phy/broadcom.c +++ b/drivers/net/phy/broadcom.c @@ -614,7 +614,7 @@ static struct mdio_device_id __maybe_unused broadcom_tbl[] = { { PHY_ID_BCM5461, 0xfffffff0 }, { PHY_ID_BCM54616S, 0xfffffff0 }, { PHY_ID_BCM5464, 0xfffffff0 }, - { PHY_ID_BCM5482, 0xfffffff0 }, + { PHY_ID_BCM5481, 0xfffffff0 }, { PHY_ID_BCM5482, 0xfffffff0 }, { PHY_ID_BCM50610, 0xfffffff0 }, { PHY_ID_BCM50610M, 0xfffffff0 }, -- cgit v1.2.3 From 6527f833bf3fa34ed53e10b8010760fff42169f0 Mon Sep 17 00:00:00 2001 From: Bjørn Mork Date: Mon, 23 Nov 2015 14:32:10 +0100 Subject: net: cdc_ncm: fix NULL pointer deref in cdc_ncm_bind_common MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 77b0a099674a ("cdc-ncm: use common parser") added a dangerous new trust in the CDC functional descriptors presented by the device, unconditionally assuming that any device handled by the driver has a CDC Union descriptor. This descriptor is required by the NCM and MBIM specs, but crashing on non-compliant devices is still unacceptable. Not only will that allow malicious devices to crash the kernel, but in this case it is also well known that there are non-compliant real devices on the market - as shown by the comment accompanying the IAD workaround in the same function. The Sierra Wireless EM7305 is an example of such device, having a CDC header and a CDC MBIM descriptor but no CDC Union: Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 12 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 2 Communications bInterfaceSubClass 14 bInterfaceProtocol 0 iInterface 0 CDC Header: bcdCDC 1.10 CDC MBIM: bcdMBIMVersion 1.00 wMaxControlMessage 4096 bNumberFilters 16 bMaxFilterSize 128 wMaxSegmentSize 4064 bmNetworkCapabilities 0x20 8-byte ntb input size Endpoint Descriptor: .. The conversion to a common parser also left the local cdc_union variable untouched. This caused the IAD workaround code to be applied to all devices with an IAD descriptor, which was never intended. Finish the conversion by testing for hdr.usb_cdc_union_desc instead. Cc: Oliver Neukum Fixes: 77b0a099674a ("cdc-ncm: use common parser") Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/cdc_ncm.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index a187f08113ec..3b1ba8237768 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -691,7 +691,6 @@ static void cdc_ncm_free(struct cdc_ncm_ctx *ctx) int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting, int drvflags) { - const struct usb_cdc_union_desc *union_desc = NULL; struct cdc_ncm_ctx *ctx; struct usb_driver *driver; u8 *buf; @@ -725,15 +724,16 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_ /* parse through descriptors associated with control interface */ cdc_parse_cdc_header(&hdr, intf, buf, len); - ctx->data = usb_ifnum_to_if(dev->udev, - hdr.usb_cdc_union_desc->bSlaveInterface0); + if (hdr.usb_cdc_union_desc) + ctx->data = usb_ifnum_to_if(dev->udev, + hdr.usb_cdc_union_desc->bSlaveInterface0); ctx->ether_desc = hdr.usb_cdc_ether_desc; ctx->func_desc = hdr.usb_cdc_ncm_desc; ctx->mbim_desc = hdr.usb_cdc_mbim_desc; ctx->mbim_extended_desc = hdr.usb_cdc_mbim_extended_desc; /* some buggy devices have an IAD but no CDC Union */ - if (!union_desc && intf->intf_assoc && intf->intf_assoc->bInterfaceCount == 2) { + if (!hdr.usb_cdc_union_desc && intf->intf_assoc && intf->intf_assoc->bInterfaceCount == 2) { ctx->data = usb_ifnum_to_if(dev->udev, intf->cur_altsetting->desc.bInterfaceNumber + 1); dev_dbg(&intf->dev, "CDC Union missing - got slave from IAD\n"); } -- cgit v1.2.3 From aeb20b6b3f4e1f88ce6a2802dabc667b607412ef Mon Sep 17 00:00:00 2001 From: Iyappan Subramanian Date: Mon, 23 Nov 2015 12:04:52 -0800 Subject: drivers: net: xgene: fix: ifconfig up/down crash Fixing kernel crash when doing ifconfig down and up in a loop, [ 124.028237] Call trace: [ 124.030670] [] memcpy+0x20/0x180 [ 124.035436] [] skb_clone+0x3c/0xa8 [ 124.040374] [] __skb_tstamp_tx+0xc0/0x118 [ 124.045918] [] skb_tstamp_tx+0x10/0x1c [ 124.051203] [] xgene_enet_start_xmit+0x2e4/0x33c [ 124.057352] [] dev_hard_start_xmit+0x2e8/0x400 [ 124.063327] [] sch_direct_xmit+0x90/0x1d4 [ 124.068870] [] __dev_queue_xmit+0x28c/0x498 [ 124.074585] [] dev_queue_xmit_sk+0x10/0x1c [ 124.080216] [] ip_finish_output2+0x3d0/0x438 [ 124.086017] [] ip_finish_output+0x198/0x1ac [ 124.091732] [] ip_output+0xec/0x164 [ 124.096755] [] ip_local_out_sk+0x38/0x48 [ 124.102211] [] ip_queue_xmit+0x288/0x330 [ 124.107668] [] tcp_transmit_skb+0x908/0x964 [ 124.113383] [] tcp_send_ack+0x128/0x138 [ 124.118753] [] __tcp_ack_snd_check+0x5c/0x94 [ 124.124555] [] tcp_rcv_established+0x554/0x68c [ 124.130530] [] tcp_v4_do_rcv+0xa4/0x37c [ 124.135900] [] release_sock+0xb4/0x150 [ 124.141184] [] tcp_recvmsg+0x448/0x9e0 [ 124.146468] [] inet_recvmsg+0xa0/0xc0 [ 124.151666] [] sock_recvmsg+0x10/0x1c [ 124.156863] [] SyS_recvfrom+0xa4/0xf8 [ 124.162061] Code: f2400c84 540001c0 cb040042 36000064 (38401423) [ 124.168133] ---[ end trace 7ab2550372e8a65b ]--- The fix was to reorder napi_enable, napi_disable, request_irq and free_irq calls, move register_netdev after dma_coerce_mask_and_coherent. Signed-off-by: Iyappan Subramanian Tested-by: Khuong Dinh Signed-off-by: David S. Miller --- drivers/net/ethernet/apm/xgene/xgene_enet_main.c | 29 +++++++++++++----------- 1 file changed, 16 insertions(+), 13 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c index 991412ce6f48..1adfe7036843 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c @@ -688,10 +688,10 @@ static int xgene_enet_open(struct net_device *ndev) mac_ops->tx_enable(pdata); mac_ops->rx_enable(pdata); + xgene_enet_napi_enable(pdata); ret = xgene_enet_register_irq(ndev); if (ret) return ret; - xgene_enet_napi_enable(pdata); if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII) phy_start(pdata->phy_dev); @@ -715,13 +715,13 @@ static int xgene_enet_close(struct net_device *ndev) else cancel_delayed_work_sync(&pdata->link_work); - xgene_enet_napi_disable(pdata); - xgene_enet_free_irq(ndev); - xgene_enet_process_ring(pdata->rx_ring, -1); - mac_ops->tx_disable(pdata); mac_ops->rx_disable(pdata); + xgene_enet_free_irq(ndev); + xgene_enet_napi_disable(pdata); + xgene_enet_process_ring(pdata->rx_ring, -1); + return 0; } @@ -1474,15 +1474,15 @@ static int xgene_enet_probe(struct platform_device *pdev) } ndev->hw_features = ndev->features; - ret = register_netdev(ndev); + ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(64)); if (ret) { - netdev_err(ndev, "Failed to register netdev\n"); + netdev_err(ndev, "No usable DMA configuration\n"); goto err; } - ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(64)); + ret = register_netdev(ndev); if (ret) { - netdev_err(ndev, "No usable DMA configuration\n"); + netdev_err(ndev, "Failed to register netdev\n"); goto err; } @@ -1490,14 +1490,17 @@ static int xgene_enet_probe(struct platform_device *pdev) if (ret) goto err; - xgene_enet_napi_add(pdata); mac_ops = pdata->mac_ops; - if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII) + if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII) { ret = xgene_enet_mdio_config(pdata); - else + if (ret) + goto err; + } else { INIT_DELAYED_WORK(&pdata->link_work, mac_ops->link_state); + } - return ret; + xgene_enet_napi_add(pdata); + return 0; err: unregister_netdev(ndev); free_netdev(ndev); -- cgit v1.2.3 From 9ffad80a9c65d7c2ab5ad6cb8b4b0559b9ed8b8c Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 25 Nov 2015 09:02:10 -0800 Subject: drivers: net: xgene: fix possible use after free Once TX has been enabled on a NIC, it is illegal to access skb, as this skb might have been freed by another cpu, from TX completion handler. Signed-off-by: Eric Dumazet Reported-by: Mark Rutland Tested-by: Mark Rutland Cc: Iyappan Subramanian Acked-by: Iyappan Subramanian Signed-off-by: David S. Miller --- drivers/net/ethernet/apm/xgene/xgene_enet_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c index 1adfe7036843..9147a0107c44 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c @@ -450,12 +450,12 @@ static netdev_tx_t xgene_enet_start_xmit(struct sk_buff *skb, return NETDEV_TX_OK; } - pdata->ring_ops->wr_cmd(tx_ring, count); skb_tx_timestamp(skb); pdata->stats.tx_packets++; pdata->stats.tx_bytes += skb->len; + pdata->ring_ops->wr_cmd(tx_ring, count); return NETDEV_TX_OK; } -- cgit v1.2.3 From ac316c783d5bef4240db3de000c1bc74481df88e Mon Sep 17 00:00:00 2001 From: Giuseppe CAVALLARO Date: Thu, 26 Nov 2015 08:35:41 +0100 Subject: stmmac: fix a filter problem after resuming. When resume the HW is re-configured but some settings can be lost. For example, the MAC Address_X High/Low Registers used for VLAN tagging.. So, while resuming, the set_filter callback needs to be invoked to re-program perfect and hash-table registers. Signed-off-by: Giuseppe Cavallaro Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 64d8aa4e0cad..e3d96f2cc4f8 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -3102,6 +3102,7 @@ int stmmac_resume(struct net_device *ndev) init_dma_desc_rings(ndev, GFP_ATOMIC); stmmac_hw_setup(ndev, false); stmmac_init_tx_coalesce(priv); + stmmac_set_rx_mode(ndev); napi_enable(&priv->napi); -- cgit v1.2.3 From 61adcc03bd010a494664dc46049dc8da245bc277 Mon Sep 17 00:00:00 2001 From: Giuseppe CAVALLARO Date: Thu, 26 Nov 2015 08:35:42 +0100 Subject: stmmac: fix csr clock divisor for 300MHz This patch is to fix the csr clock in case of 300MHz is provided. Reported-by: Kent Borg Signed-off-by: Giuseppe Cavallaro Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index e3d96f2cc4f8..6256b32cec37 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -185,7 +185,7 @@ static void stmmac_clk_csr_set(struct stmmac_priv *priv) priv->clk_csr = STMMAC_CSR_100_150M; else if ((clk_rate >= CSR_F_150M) && (clk_rate < CSR_F_250M)) priv->clk_csr = STMMAC_CSR_150_250M; - else if ((clk_rate >= CSR_F_250M) && (clk_rate < CSR_F_300M)) + else if ((clk_rate >= CSR_F_250M) && (clk_rate <= CSR_F_300M)) priv->clk_csr = STMMAC_CSR_250_300M; } } -- cgit v1.2.3 From 22407e13172e9d5257ad3548a4f69bff8ed20111 Mon Sep 17 00:00:00 2001 From: Giuseppe CAVALLARO Date: Thu, 26 Nov 2015 08:35:43 +0100 Subject: stmmac: dwmac-sti: fix st,tx-retime-src check In case of the st,tx-retime-src is missing from device-tree (it's an optional field) the driver will invoke the strcasecmp to check which clock has been selected and this is a bug; the else condition is needed. In the dwmac_setup, the "rs" variable, passed to the strcasecmp, was not initialized and the compiler, depending on the options adopted, could take it in some different part of the stack generating the hang in such configuration. Signed-off-by: Giuseppe Cavallaro Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c index 7f6f4a4fcc70..58c05acc2aab 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c @@ -299,16 +299,17 @@ static int sti_dwmac_parse_data(struct sti_dwmac *dwmac, if (IS_PHY_IF_MODE_GBIT(dwmac->interface)) { const char *rs; + dwmac->tx_retime_src = TX_RETIME_SRC_CLKGEN; + err = of_property_read_string(np, "st,tx-retime-src", &rs); if (err < 0) { dev_warn(dev, "Use internal clock source\n"); - dwmac->tx_retime_src = TX_RETIME_SRC_CLKGEN; - } else if (!strcasecmp(rs, "clk_125")) { - dwmac->tx_retime_src = TX_RETIME_SRC_CLK_125; - } else if (!strcasecmp(rs, "txclk")) { - dwmac->tx_retime_src = TX_RETIME_SRC_TXCLK; + } else { + if (!strcasecmp(rs, "clk_125")) + dwmac->tx_retime_src = TX_RETIME_SRC_CLK_125; + else if (!strcasecmp(rs, "txclk")) + dwmac->tx_retime_src = TX_RETIME_SRC_TXCLK; } - dwmac->speed = SPEED_1000; } -- cgit v1.2.3 From ae26c1c6cb9bd5ad6fa1dbfdf1fe430ac09b0d28 Mon Sep 17 00:00:00 2001 From: Giuseppe CAVALLARO Date: Thu, 26 Nov 2015 08:35:44 +0100 Subject: stmmac: fix PHY reset during resume When stmmac_mdio_reset, was called from stmmac_resume, it was not resetting the PHY due to which MAC was not getting reset properly and hence ethernet interface not was resumed properly. The issue was currently only reproducible on stih301-b2204. Signed-off-by: Pankaj Dev Signed-off-by: Giuseppe Cavallaro Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c | 28 +++++++++++------------ 1 file changed, 13 insertions(+), 15 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c index ebf6abc4853f..bba670c42e37 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c @@ -138,7 +138,6 @@ int stmmac_mdio_reset(struct mii_bus *bus) #ifdef CONFIG_OF if (priv->device->of_node) { - int reset_gpio, active_low; if (data->reset_gpio < 0) { struct device_node *np = priv->device->of_node; @@ -154,24 +153,23 @@ int stmmac_mdio_reset(struct mii_bus *bus) "snps,reset-active-low"); of_property_read_u32_array(np, "snps,reset-delays-us", data->delays, 3); - } - reset_gpio = data->reset_gpio; - active_low = data->active_low; + if (gpio_request(data->reset_gpio, "mdio-reset")) + return 0; + } - if (!gpio_request(reset_gpio, "mdio-reset")) { - gpio_direction_output(reset_gpio, active_low ? 1 : 0); - if (data->delays[0]) - msleep(DIV_ROUND_UP(data->delays[0], 1000)); + gpio_direction_output(data->reset_gpio, + data->active_low ? 1 : 0); + if (data->delays[0]) + msleep(DIV_ROUND_UP(data->delays[0], 1000)); - gpio_set_value(reset_gpio, active_low ? 0 : 1); - if (data->delays[1]) - msleep(DIV_ROUND_UP(data->delays[1], 1000)); + gpio_set_value(data->reset_gpio, data->active_low ? 0 : 1); + if (data->delays[1]) + msleep(DIV_ROUND_UP(data->delays[1], 1000)); - gpio_set_value(reset_gpio, active_low ? 1 : 0); - if (data->delays[2]) - msleep(DIV_ROUND_UP(data->delays[2], 1000)); - } + gpio_set_value(data->reset_gpio, data->active_low ? 1 : 0); + if (data->delays[2]) + msleep(DIV_ROUND_UP(data->delays[2], 1000)); } #endif -- cgit v1.2.3 From e527c4a769d375ac0472450c52bde29087f49cd9 Mon Sep 17 00:00:00 2001 From: Giuseppe CAVALLARO Date: Thu, 26 Nov 2015 08:35:45 +0100 Subject: stmmac: fix oversized frame reception The receive skb buffers can be preallocated when the link is opened according to mtu size. While testing on a network environment with not standard MTU (e.g. 3000), a panic occurred if an incoming packet had a length greater than rx skb buffer size. This is because the HW is programmed to copy, from the DMA, an Jumbo frame and the Sw must check if the allocated buffer is enough to store the frame. Signed-off-by: Alexandre TORGUE Signed-off-by: Giuseppe Cavallaro Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 6256b32cec37..3c6549aee11d 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -2232,6 +2232,12 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit) frame_len = priv->hw->desc->get_rx_frame_len(p, coe); + /* check if frame_len fits the preallocated memory */ + if (frame_len > priv->dma_buf_sz) { + priv->dev->stats.rx_length_errors++; + break; + } + /* ACS is set; GMAC core strips PAD/FCS for IEEE 802.3 * Type frames (LLC/LLC-SNAP) */ -- cgit v1.2.3 From fea0f6650979a4fddd3f3fe255563ed15a2fc318 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 26 Nov 2015 11:59:45 +0000 Subject: net: fsl: Don't use NO_IRQ to check return value of irq_of_parse_and_map() This driver can be built on arm64 but relies on NO_IRQ to check the return value of irq_of_parse_and_map() which fails to build on arm64 because the architecture does not provide a NO_IRQ. Fix this to correctly check the return value of irq_of_parse_and_map(). Even on ARM systems where the driver was previously used the check was broken since on ARM NO_IRQ is -1 but irq_of_parse_and_map() returns 0 on error. Signed-off-by: Mark Brown Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/gianfar.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index 3e6b9b437497..7cf898455e60 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -647,9 +647,9 @@ static int gfar_parse_group(struct device_node *np, if (model && strcasecmp(model, "FEC")) { gfar_irq(grp, RX)->irq = irq_of_parse_and_map(np, 1); gfar_irq(grp, ER)->irq = irq_of_parse_and_map(np, 2); - if (gfar_irq(grp, TX)->irq == NO_IRQ || - gfar_irq(grp, RX)->irq == NO_IRQ || - gfar_irq(grp, ER)->irq == NO_IRQ) + if (!gfar_irq(grp, TX)->irq || + !gfar_irq(grp, RX)->irq || + !gfar_irq(grp, ER)->irq) return -EINVAL; } -- cgit v1.2.3 From 0f2c0d32e6536ad39c3e9589d42c53d0ee3bfa08 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 26 Nov 2015 11:59:46 +0000 Subject: net: fsl: Fix error checking for platform_get_irq() The gianfar driver has recently been enabled on arm64 but fails to build since it check the return value of platform_get_irq() against NO_IRQ. Fix this by instead checking for a negative error code. Even on ARM where this code was previously being built this check was incorrect since platform_get_irq() returns a negative error code which may not be exactly the (unsigned int)(-1) that NO_IRQ is defined to be. Signed-off-by: Mark Brown Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/gianfar_ptp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/freescale/gianfar_ptp.c b/drivers/net/ethernet/freescale/gianfar_ptp.c index 664d0c261269..b40fba929d65 100644 --- a/drivers/net/ethernet/freescale/gianfar_ptp.c +++ b/drivers/net/ethernet/freescale/gianfar_ptp.c @@ -467,7 +467,7 @@ static int gianfar_ptp_probe(struct platform_device *dev) etsects->irq = platform_get_irq(dev, 0); - if (etsects->irq == NO_IRQ) { + if (etsects->irq < 0) { pr_err("irq not in device tree\n"); goto no_node; } -- cgit v1.2.3 From ee9159ddce14bc1dec9435ae4e3bd3153e783706 Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Fri, 27 Nov 2015 14:18:39 -0500 Subject: wan/x25: Fix use-after-free in x25_asy_open_tty() The N_X25 line discipline may access the previous line discipline's closed and already-freed private data on open [1]. The tty->disc_data field _never_ refers to valid data on entry to the line discipline's open() method. Rather, the ldisc is expected to initialize that field for its own use for the lifetime of the instance (ie. from open() to close() only). [1] [ 634.336761] ================================================================== [ 634.338226] BUG: KASAN: use-after-free in x25_asy_open_tty+0x13d/0x490 at addr ffff8800a743efd0 [ 634.339558] Read of size 4 by task syzkaller_execu/8981 [ 634.340359] ============================================================================= [ 634.341598] BUG kmalloc-512 (Not tainted): kasan: bad access detected ... [ 634.405018] Call Trace: [ 634.405277] dump_stack (lib/dump_stack.c:52) [ 634.405775] print_trailer (mm/slub.c:655) [ 634.406361] object_err (mm/slub.c:662) [ 634.406824] kasan_report_error (mm/kasan/report.c:138 mm/kasan/report.c:236) [ 634.409581] __asan_report_load4_noabort (mm/kasan/report.c:279) [ 634.411355] x25_asy_open_tty (drivers/net/wan/x25_asy.c:559 (discriminator 1)) [ 634.413997] tty_ldisc_open.isra.2 (drivers/tty/tty_ldisc.c:447) [ 634.414549] tty_set_ldisc (drivers/tty/tty_ldisc.c:567) [ 634.415057] tty_ioctl (drivers/tty/tty_io.c:2646 drivers/tty/tty_io.c:2879) [ 634.423524] do_vfs_ioctl (fs/ioctl.c:43 fs/ioctl.c:607) [ 634.427491] SyS_ioctl (fs/ioctl.c:622 fs/ioctl.c:613) [ 634.427945] entry_SYSCALL_64_fastpath (arch/x86/entry/entry_64.S:188) Reported-and-tested-by: Sasha Levin Cc: Signed-off-by: Peter Hurley Signed-off-by: David S. Miller --- drivers/net/wan/x25_asy.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wan/x25_asy.c b/drivers/net/wan/x25_asy.c index 5c47b011a9d7..cd39025d2abf 100644 --- a/drivers/net/wan/x25_asy.c +++ b/drivers/net/wan/x25_asy.c @@ -549,16 +549,12 @@ static void x25_asy_receive_buf(struct tty_struct *tty, static int x25_asy_open_tty(struct tty_struct *tty) { - struct x25_asy *sl = tty->disc_data; + struct x25_asy *sl; int err; if (tty->ops->write == NULL) return -EOPNOTSUPP; - /* First make sure we're not already connected. */ - if (sl && sl->magic == X25_ASY_MAGIC) - return -EEXIST; - /* OK. Find a free X.25 channel to use. */ sl = x25_asy_alloc(); if (sl == NULL) -- cgit v1.2.3 From 5738a09d58d5ad2871f1f9a42bf6a3aa9ece5b3c Mon Sep 17 00:00:00 2001 From: Alexey Khoroshilov Date: Sat, 28 Nov 2015 01:29:30 +0300 Subject: vmxnet3: fix checks for dma mapping errors vmxnet3_drv does not check dma_addr with dma_mapping_error() after mapping dma memory. The patch adds the checks and tries to handle failures. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Acked-by: Shrikrishna Khare Signed-off-by: David S. Miller --- drivers/net/vmxnet3/vmxnet3_drv.c | 71 +++++++++++++++++++++++++++++++++------ 1 file changed, 60 insertions(+), 11 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index 899ea4288197..417903715437 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -587,6 +587,12 @@ vmxnet3_rq_alloc_rx_buf(struct vmxnet3_rx_queue *rq, u32 ring_idx, &adapter->pdev->dev, rbi->skb->data, rbi->len, PCI_DMA_FROMDEVICE); + if (dma_mapping_error(&adapter->pdev->dev, + rbi->dma_addr)) { + dev_kfree_skb_any(rbi->skb); + rq->stats.rx_buf_alloc_failure++; + break; + } } else { /* rx buffer skipped by the device */ } @@ -605,13 +611,18 @@ vmxnet3_rq_alloc_rx_buf(struct vmxnet3_rx_queue *rq, u32 ring_idx, &adapter->pdev->dev, rbi->page, 0, PAGE_SIZE, PCI_DMA_FROMDEVICE); + if (dma_mapping_error(&adapter->pdev->dev, + rbi->dma_addr)) { + put_page(rbi->page); + rq->stats.rx_buf_alloc_failure++; + break; + } } else { /* rx buffers skipped by the device */ } val = VMXNET3_RXD_BTYPE_BODY << VMXNET3_RXD_BTYPE_SHIFT; } - BUG_ON(rbi->dma_addr == 0); gd->rxd.addr = cpu_to_le64(rbi->dma_addr); gd->dword[2] = cpu_to_le32((!ring->gen << VMXNET3_RXD_GEN_SHIFT) | val | rbi->len); @@ -655,7 +666,7 @@ vmxnet3_append_frag(struct sk_buff *skb, struct Vmxnet3_RxCompDesc *rcd, } -static void +static int vmxnet3_map_pkt(struct sk_buff *skb, struct vmxnet3_tx_ctx *ctx, struct vmxnet3_tx_queue *tq, struct pci_dev *pdev, struct vmxnet3_adapter *adapter) @@ -715,6 +726,8 @@ vmxnet3_map_pkt(struct sk_buff *skb, struct vmxnet3_tx_ctx *ctx, tbi->dma_addr = dma_map_single(&adapter->pdev->dev, skb->data + buf_offset, buf_size, PCI_DMA_TODEVICE); + if (dma_mapping_error(&adapter->pdev->dev, tbi->dma_addr)) + return -EFAULT; tbi->len = buf_size; @@ -755,6 +768,8 @@ vmxnet3_map_pkt(struct sk_buff *skb, struct vmxnet3_tx_ctx *ctx, tbi->dma_addr = skb_frag_dma_map(&adapter->pdev->dev, frag, buf_offset, buf_size, DMA_TO_DEVICE); + if (dma_mapping_error(&adapter->pdev->dev, tbi->dma_addr)) + return -EFAULT; tbi->len = buf_size; @@ -782,6 +797,8 @@ vmxnet3_map_pkt(struct sk_buff *skb, struct vmxnet3_tx_ctx *ctx, /* set the last buf_info for the pkt */ tbi->skb = skb; tbi->sop_idx = ctx->sop_txd - tq->tx_ring.base; + + return 0; } @@ -1020,7 +1037,8 @@ vmxnet3_tq_xmit(struct sk_buff *skb, struct vmxnet3_tx_queue *tq, } /* fill tx descs related to addr & len */ - vmxnet3_map_pkt(skb, &ctx, tq, adapter->pdev, adapter); + if (vmxnet3_map_pkt(skb, &ctx, tq, adapter->pdev, adapter)) + goto unlock_drop_pkt; /* setup the EOP desc */ ctx.eop_txd->dword[3] = cpu_to_le32(VMXNET3_TXD_CQ | VMXNET3_TXD_EOP); @@ -1231,6 +1249,7 @@ vmxnet3_rq_rx_complete(struct vmxnet3_rx_queue *rq, struct vmxnet3_rx_buf_info *rbi; struct sk_buff *skb, *new_skb = NULL; struct page *new_page = NULL; + dma_addr_t new_dma_addr; int num_to_alloc; struct Vmxnet3_RxDesc *rxd; u32 idx, ring_idx; @@ -1287,6 +1306,21 @@ vmxnet3_rq_rx_complete(struct vmxnet3_rx_queue *rq, skip_page_frags = true; goto rcd_done; } + new_dma_addr = dma_map_single(&adapter->pdev->dev, + new_skb->data, rbi->len, + PCI_DMA_FROMDEVICE); + if (dma_mapping_error(&adapter->pdev->dev, + new_dma_addr)) { + dev_kfree_skb(new_skb); + /* Skb allocation failed, do not handover this + * skb to stack. Reuse it. Drop the existing pkt + */ + rq->stats.rx_buf_alloc_failure++; + ctx->skb = NULL; + rq->stats.drop_total++; + skip_page_frags = true; + goto rcd_done; + } dma_unmap_single(&adapter->pdev->dev, rbi->dma_addr, rbi->len, @@ -1303,9 +1337,7 @@ vmxnet3_rq_rx_complete(struct vmxnet3_rx_queue *rq, /* Immediate refill */ rbi->skb = new_skb; - rbi->dma_addr = dma_map_single(&adapter->pdev->dev, - rbi->skb->data, rbi->len, - PCI_DMA_FROMDEVICE); + rbi->dma_addr = new_dma_addr; rxd->addr = cpu_to_le64(rbi->dma_addr); rxd->len = rbi->len; if (adapter->version == 2 && @@ -1348,6 +1380,19 @@ vmxnet3_rq_rx_complete(struct vmxnet3_rx_queue *rq, skip_page_frags = true; goto rcd_done; } + new_dma_addr = dma_map_page(&adapter->pdev->dev + , rbi->page, + 0, PAGE_SIZE, + PCI_DMA_FROMDEVICE); + if (dma_mapping_error(&adapter->pdev->dev, + new_dma_addr)) { + put_page(new_page); + rq->stats.rx_buf_alloc_failure++; + dev_kfree_skb(ctx->skb); + ctx->skb = NULL; + skip_page_frags = true; + goto rcd_done; + } dma_unmap_page(&adapter->pdev->dev, rbi->dma_addr, rbi->len, @@ -1357,10 +1402,7 @@ vmxnet3_rq_rx_complete(struct vmxnet3_rx_queue *rq, /* Immediate refill */ rbi->page = new_page; - rbi->dma_addr = dma_map_page(&adapter->pdev->dev - , rbi->page, - 0, PAGE_SIZE, - PCI_DMA_FROMDEVICE); + rbi->dma_addr = new_dma_addr; rxd->addr = cpu_to_le64(rbi->dma_addr); rxd->len = rbi->len; } @@ -2167,7 +2209,8 @@ vmxnet3_set_mc(struct net_device *netdev) PCI_DMA_TODEVICE); } - if (new_table_pa) { + if (!dma_mapping_error(&adapter->pdev->dev, + new_table_pa)) { new_mode |= VMXNET3_RXM_MCAST; rxConf->mfTablePA = cpu_to_le64(new_table_pa); } else { @@ -3075,6 +3118,11 @@ vmxnet3_probe_device(struct pci_dev *pdev, adapter->adapter_pa = dma_map_single(&adapter->pdev->dev, adapter, sizeof(struct vmxnet3_adapter), PCI_DMA_TODEVICE); + if (dma_mapping_error(&adapter->pdev->dev, adapter->adapter_pa)) { + dev_err(&pdev->dev, "Failed to map dma\n"); + err = -EFAULT; + goto err_dma_map; + } adapter->shared = dma_alloc_coherent( &adapter->pdev->dev, sizeof(struct Vmxnet3_DriverShared), @@ -3233,6 +3281,7 @@ err_alloc_queue_desc: err_alloc_shared: dma_unmap_single(&adapter->pdev->dev, adapter->adapter_pa, sizeof(struct vmxnet3_adapter), PCI_DMA_TODEVICE); +err_dma_map: free_netdev(netdev); return err; } -- cgit v1.2.3 From 9cd3e072b0be17446e37d7414eac8a3499e0601e Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 29 Nov 2015 20:03:10 -0800 Subject: net: rename SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA This patch is a cleanup to make following patch easier to review. Goal is to move SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA from (struct socket)->flags to a (struct socket_wq)->flags to benefit from RCU protection in sock_wake_async() To ease backports, we rename both constants. Two new helpers, sk_set_bit(int nr, struct sock *sk) and sk_clear_bit(int net, struct sock *sk) are added so that following patch can change their implementation. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- crypto/algif_aead.c | 4 ++-- crypto/algif_skcipher.c | 6 +++--- drivers/net/macvtap.c | 4 ++-- drivers/net/tun.c | 4 ++-- fs/dlm/lowcomms.c | 4 ++-- include/linux/net.h | 6 +++--- include/net/sock.h | 10 ++++++++++ net/bluetooth/af_bluetooth.c | 6 +++--- net/caif/caif_socket.c | 4 ++-- net/core/datagram.c | 2 +- net/core/sock.c | 8 ++++---- net/core/stream.c | 4 ++-- net/dccp/proto.c | 3 +-- net/decnet/af_decnet.c | 8 ++++---- net/ipv4/tcp.c | 7 +++---- net/iucv/af_iucv.c | 2 +- net/nfc/llcp_sock.c | 2 +- net/rxrpc/ar-output.c | 2 +- net/sctp/socket.c | 2 +- net/socket.c | 4 ++-- net/sunrpc/xprtsock.c | 14 +++++++------- net/unix/af_unix.c | 6 +++--- 22 files changed, 60 insertions(+), 52 deletions(-) (limited to 'drivers/net') diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c index 0aa6fdfb448a..6d4d4569447e 100644 --- a/crypto/algif_aead.c +++ b/crypto/algif_aead.c @@ -125,7 +125,7 @@ static int aead_wait_for_data(struct sock *sk, unsigned flags) if (flags & MSG_DONTWAIT) return -EAGAIN; - set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk); for (;;) { if (signal_pending(current)) @@ -139,7 +139,7 @@ static int aead_wait_for_data(struct sock *sk, unsigned flags) } finish_wait(sk_sleep(sk), &wait); - clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); + sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk); return err; } diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c index af31a0ee4057..ca9efe17db1a 100644 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@ -212,7 +212,7 @@ static int skcipher_wait_for_wmem(struct sock *sk, unsigned flags) if (flags & MSG_DONTWAIT) return -EAGAIN; - set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk); for (;;) { if (signal_pending(current)) @@ -258,7 +258,7 @@ static int skcipher_wait_for_data(struct sock *sk, unsigned flags) return -EAGAIN; } - set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk); for (;;) { if (signal_pending(current)) @@ -272,7 +272,7 @@ static int skcipher_wait_for_data(struct sock *sk, unsigned flags) } finish_wait(sk_sleep(sk), &wait); - clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); + sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk); return err; } diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c index 54036ae0a388..0fc521941c71 100644 --- a/drivers/net/macvtap.c +++ b/drivers/net/macvtap.c @@ -498,7 +498,7 @@ static void macvtap_sock_write_space(struct sock *sk) wait_queue_head_t *wqueue; if (!sock_writeable(sk) || - !test_and_clear_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags)) + !test_and_clear_bit(SOCKWQ_ASYNC_NOSPACE, &sk->sk_socket->flags)) return; wqueue = sk_sleep(sk); @@ -585,7 +585,7 @@ static unsigned int macvtap_poll(struct file *file, poll_table * wait) mask |= POLLIN | POLLRDNORM; if (sock_writeable(&q->sk) || - (!test_and_set_bit(SOCK_ASYNC_NOSPACE, &q->sock.flags) && + (!test_and_set_bit(SOCKWQ_ASYNC_NOSPACE, &q->sock.flags) && sock_writeable(&q->sk))) mask |= POLLOUT | POLLWRNORM; diff --git a/drivers/net/tun.c b/drivers/net/tun.c index b1878faea397..f0db770e8b2f 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1040,7 +1040,7 @@ static unsigned int tun_chr_poll(struct file *file, poll_table *wait) mask |= POLLIN | POLLRDNORM; if (sock_writeable(sk) || - (!test_and_set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags) && + (!test_and_set_bit(SOCKWQ_ASYNC_NOSPACE, &sk->sk_socket->flags) && sock_writeable(sk))) mask |= POLLOUT | POLLWRNORM; @@ -1488,7 +1488,7 @@ static void tun_sock_write_space(struct sock *sk) if (!sock_writeable(sk)) return; - if (!test_and_clear_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags)) + if (!test_and_clear_bit(SOCKWQ_ASYNC_NOSPACE, &sk->sk_socket->flags)) return; wqueue = sk_sleep(sk); diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c index 87e9d796cf7d..3a37bd3f9637 100644 --- a/fs/dlm/lowcomms.c +++ b/fs/dlm/lowcomms.c @@ -421,7 +421,7 @@ static void lowcomms_write_space(struct sock *sk) if (test_and_clear_bit(CF_APP_LIMITED, &con->flags)) { con->sock->sk->sk_write_pending--; - clear_bit(SOCK_ASYNC_NOSPACE, &con->sock->flags); + clear_bit(SOCKWQ_ASYNC_NOSPACE, &con->sock->flags); } if (!test_and_set_bit(CF_WRITE_PENDING, &con->flags)) @@ -1448,7 +1448,7 @@ static void send_to_sock(struct connection *con) msg_flags); if (ret == -EAGAIN || ret == 0) { if (ret == -EAGAIN && - test_bit(SOCK_ASYNC_NOSPACE, &con->sock->flags) && + test_bit(SOCKWQ_ASYNC_NOSPACE, &con->sock->flags) && !test_and_set_bit(CF_APP_LIMITED, &con->flags)) { /* Notify TCP that we're limited by the * application window size. diff --git a/include/linux/net.h b/include/linux/net.h index 70ac5e28e6b7..f514e4dd5521 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -34,8 +34,8 @@ struct inode; struct file; struct net; -#define SOCK_ASYNC_NOSPACE 0 -#define SOCK_ASYNC_WAITDATA 1 +#define SOCKWQ_ASYNC_NOSPACE 0 +#define SOCKWQ_ASYNC_WAITDATA 1 #define SOCK_NOSPACE 2 #define SOCK_PASSCRED 3 #define SOCK_PASSSEC 4 @@ -96,7 +96,7 @@ struct socket_wq { * struct socket - general BSD socket * @state: socket state (%SS_CONNECTED, etc) * @type: socket type (%SOCK_STREAM, etc) - * @flags: socket flags (%SOCK_ASYNC_NOSPACE, etc) + * @flags: socket flags (%SOCK_NOSPACE, etc) * @ops: protocol specific socket operations * @file: File back pointer for gc * @sk: internal networking protocol agnostic socket representation diff --git a/include/net/sock.h b/include/net/sock.h index 7f89e4ba18d1..c155d09d8af4 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -2005,6 +2005,16 @@ static inline unsigned long sock_wspace(struct sock *sk) return amt; } +static inline void sk_set_bit(int nr, struct sock *sk) +{ + set_bit(nr, &sk->sk_socket->flags); +} + +static inline void sk_clear_bit(int nr, struct sock *sk) +{ + clear_bit(nr, &sk->sk_socket->flags); +} + static inline void sk_wake_async(struct sock *sk, int how, int band) { if (sock_flag(sk, SOCK_FASYNC)) diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c index a3bffd1ec2b4..70306cc9d814 100644 --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@ -271,11 +271,11 @@ static long bt_sock_data_wait(struct sock *sk, long timeo) if (signal_pending(current) || !timeo) break; - set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk); release_sock(sk); timeo = schedule_timeout(timeo); lock_sock(sk); - clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); + sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk); } __set_current_state(TASK_RUNNING); @@ -441,7 +441,7 @@ unsigned int bt_sock_poll(struct file *file, struct socket *sock, if (!test_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags) && sock_writeable(sk)) mask |= POLLOUT | POLLWRNORM | POLLWRBAND; else - set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk); return mask; } diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c index cc858919108e..aa209b1066c9 100644 --- a/net/caif/caif_socket.c +++ b/net/caif/caif_socket.c @@ -323,7 +323,7 @@ static long caif_stream_data_wait(struct sock *sk, long timeo) !timeo) break; - set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk); release_sock(sk); timeo = schedule_timeout(timeo); lock_sock(sk); @@ -331,7 +331,7 @@ static long caif_stream_data_wait(struct sock *sk, long timeo) if (sock_flag(sk, SOCK_DEAD)) break; - clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); + sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk); } finish_wait(sk_sleep(sk), &wait); diff --git a/net/core/datagram.c b/net/core/datagram.c index 617088aee21d..d62af69ad844 100644 --- a/net/core/datagram.c +++ b/net/core/datagram.c @@ -785,7 +785,7 @@ unsigned int datagram_poll(struct file *file, struct socket *sock, if (sock_writeable(sk)) mask |= POLLOUT | POLLWRNORM | POLLWRBAND; else - set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk); return mask; } diff --git a/net/core/sock.c b/net/core/sock.c index 1e4dd54bfb5a..9d79569935a3 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1815,7 +1815,7 @@ static long sock_wait_for_wmem(struct sock *sk, long timeo) { DEFINE_WAIT(wait); - clear_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); + sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk); for (;;) { if (!timeo) break; @@ -1861,7 +1861,7 @@ struct sk_buff *sock_alloc_send_pskb(struct sock *sk, unsigned long header_len, if (sk_wmem_alloc_get(sk) < sk->sk_sndbuf) break; - set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk); set_bit(SOCK_NOSPACE, &sk->sk_socket->flags); err = -EAGAIN; if (!timeo) @@ -2048,9 +2048,9 @@ int sk_wait_data(struct sock *sk, long *timeo, const struct sk_buff *skb) DEFINE_WAIT(wait); prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); - set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk); rc = sk_wait_event(sk, timeo, skb_peek_tail(&sk->sk_receive_queue) != skb); - clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); + sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk); finish_wait(sk_sleep(sk), &wait); return rc; } diff --git a/net/core/stream.c b/net/core/stream.c index d70f77a0c889..43309428644d 100644 --- a/net/core/stream.c +++ b/net/core/stream.c @@ -126,7 +126,7 @@ int sk_stream_wait_memory(struct sock *sk, long *timeo_p) current_timeo = vm_wait = (prandom_u32() % (HZ / 5)) + 2; while (1) { - set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk); prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); @@ -139,7 +139,7 @@ int sk_stream_wait_memory(struct sock *sk, long *timeo_p) } if (signal_pending(current)) goto do_interrupted; - clear_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); + sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk); if (sk_stream_memory_free(sk) && !vm_wait) break; diff --git a/net/dccp/proto.c b/net/dccp/proto.c index b5cf13a28009..41e65804ddf5 100644 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@ -339,8 +339,7 @@ unsigned int dccp_poll(struct file *file, struct socket *sock, if (sk_stream_is_writeable(sk)) { mask |= POLLOUT | POLLWRNORM; } else { /* send SIGIO later */ - set_bit(SOCK_ASYNC_NOSPACE, - &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk); set_bit(SOCK_NOSPACE, &sk->sk_socket->flags); /* Race breaker. If space is freed after diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c index 675cf94e04f8..eebf5ac8ce18 100644 --- a/net/decnet/af_decnet.c +++ b/net/decnet/af_decnet.c @@ -1747,9 +1747,9 @@ static int dn_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, } prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); - set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk); sk_wait_event(sk, &timeo, dn_data_ready(sk, queue, flags, target)); - clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); + sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk); finish_wait(sk_sleep(sk), &wait); } @@ -2004,10 +2004,10 @@ static int dn_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) } prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); - set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk); sk_wait_event(sk, &timeo, !dn_queue_too_long(scp, queue, flags)); - clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); + sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk); finish_wait(sk_sleep(sk), &wait); continue; } diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index c1728771cf89..c82cca18c90f 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -517,8 +517,7 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait) if (sk_stream_is_writeable(sk)) { mask |= POLLOUT | POLLWRNORM; } else { /* send SIGIO later */ - set_bit(SOCK_ASYNC_NOSPACE, - &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk); set_bit(SOCK_NOSPACE, &sk->sk_socket->flags); /* Race breaker. If space is freed after @@ -906,7 +905,7 @@ static ssize_t do_tcp_sendpages(struct sock *sk, struct page *page, int offset, goto out_err; } - clear_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); + sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk); mss_now = tcp_send_mss(sk, &size_goal, flags); copied = 0; @@ -1134,7 +1133,7 @@ int tcp_sendmsg(struct sock *sk, struct msghdr *msg, size_t size) } /* This should be in poll */ - clear_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); + sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk); mss_now = tcp_send_mss(sk, &size_goal, flags); diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c index fcb2752419c6..435608c4306d 100644 --- a/net/iucv/af_iucv.c +++ b/net/iucv/af_iucv.c @@ -1483,7 +1483,7 @@ unsigned int iucv_sock_poll(struct file *file, struct socket *sock, if (sock_writeable(sk) && iucv_below_msglim(sk)) mask |= POLLOUT | POLLWRNORM | POLLWRBAND; else - set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk); return mask; } diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c index b7de0da46acd..ecf0a0196f18 100644 --- a/net/nfc/llcp_sock.c +++ b/net/nfc/llcp_sock.c @@ -572,7 +572,7 @@ static unsigned int llcp_sock_poll(struct file *file, struct socket *sock, if (sock_writeable(sk) && sk->sk_state == LLCP_CONNECTED) mask |= POLLOUT | POLLWRNORM | POLLWRBAND; else - set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk); pr_debug("mask 0x%x\n", mask); diff --git a/net/rxrpc/ar-output.c b/net/rxrpc/ar-output.c index a40d3afe93b7..14c4e12c47b0 100644 --- a/net/rxrpc/ar-output.c +++ b/net/rxrpc/ar-output.c @@ -531,7 +531,7 @@ static int rxrpc_send_data(struct rxrpc_sock *rx, timeo = sock_sndtimeo(sk, msg->msg_flags & MSG_DONTWAIT); /* this should be in poll */ - clear_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); + sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk); if (sk->sk_err || (sk->sk_shutdown & SEND_SHUTDOWN)) return -EPIPE; diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 897c01c029ca..2353985d689c 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -6458,7 +6458,7 @@ unsigned int sctp_poll(struct file *file, struct socket *sock, poll_table *wait) if (sctp_writeable(sk)) { mask |= POLLOUT | POLLWRNORM; } else { - set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk); /* * Since the socket is not locked, the buffer * might be made available after the writeable check and diff --git a/net/socket.c b/net/socket.c index dd2c247c99e3..16be908205fc 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1072,11 +1072,11 @@ int sock_wake_async(struct socket *sock, int how, int band) } switch (how) { case SOCK_WAKE_WAITD: - if (test_bit(SOCK_ASYNC_WAITDATA, &sock->flags)) + if (test_bit(SOCKWQ_ASYNC_WAITDATA, &sock->flags)) break; goto call_kill; case SOCK_WAKE_SPACE: - if (!test_and_clear_bit(SOCK_ASYNC_NOSPACE, &sock->flags)) + if (!test_and_clear_bit(SOCKWQ_ASYNC_NOSPACE, &sock->flags)) break; /* fall through */ case SOCK_WAKE_IO: diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 1d1a70498910..2ffaf6a79499 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -398,7 +398,7 @@ static int xs_sendpages(struct socket *sock, struct sockaddr *addr, int addrlen, if (unlikely(!sock)) return -ENOTSOCK; - clear_bit(SOCK_ASYNC_NOSPACE, &sock->flags); + clear_bit(SOCKWQ_ASYNC_NOSPACE, &sock->flags); if (base != 0) { addr = NULL; addrlen = 0; @@ -442,7 +442,7 @@ static void xs_nospace_callback(struct rpc_task *task) struct sock_xprt *transport = container_of(task->tk_rqstp->rq_xprt, struct sock_xprt, xprt); transport->inet->sk_write_pending--; - clear_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags); + clear_bit(SOCKWQ_ASYNC_NOSPACE, &transport->sock->flags); } /** @@ -467,7 +467,7 @@ static int xs_nospace(struct rpc_task *task) /* Don't race with disconnect */ if (xprt_connected(xprt)) { - if (test_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags)) { + if (test_bit(SOCKWQ_ASYNC_NOSPACE, &transport->sock->flags)) { /* * Notify TCP that we're limited by the application * window size @@ -478,7 +478,7 @@ static int xs_nospace(struct rpc_task *task) xprt_wait_for_buffer_space(task, xs_nospace_callback); } } else { - clear_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags); + clear_bit(SOCKWQ_ASYNC_NOSPACE, &transport->sock->flags); ret = -ENOTCONN; } @@ -626,7 +626,7 @@ process_status: case -EPERM: /* When the server has died, an ICMP port unreachable message * prompts ECONNREFUSED. */ - clear_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags); + clear_bit(SOCKWQ_ASYNC_NOSPACE, &transport->sock->flags); } return status; @@ -715,7 +715,7 @@ static int xs_tcp_send_request(struct rpc_task *task) case -EADDRINUSE: case -ENOBUFS: case -EPIPE: - clear_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags); + clear_bit(SOCKWQ_ASYNC_NOSPACE, &transport->sock->flags); } return status; @@ -1618,7 +1618,7 @@ static void xs_write_space(struct sock *sk) if (unlikely(!(xprt = xprt_from_sock(sk)))) return; - if (test_and_clear_bit(SOCK_ASYNC_NOSPACE, &sock->flags) == 0) + if (test_and_clear_bit(SOCKWQ_ASYNC_NOSPACE, &sock->flags) == 0) return; xprt_write_space(xprt); diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 6ced74690eee..45aebd966978 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -2191,7 +2191,7 @@ static long unix_stream_data_wait(struct sock *sk, long timeo, !timeo) break; - set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk); unix_state_unlock(sk); timeo = freezable_schedule_timeout(timeo); unix_state_lock(sk); @@ -2199,7 +2199,7 @@ static long unix_stream_data_wait(struct sock *sk, long timeo, if (sock_flag(sk, SOCK_DEAD)) break; - clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); + sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk); } finish_wait(sk_sleep(sk), &wait); @@ -2683,7 +2683,7 @@ static unsigned int unix_dgram_poll(struct file *file, struct socket *sock, if (writable) mask |= POLLOUT | POLLWRNORM | POLLWRBAND; else - set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); + sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk); return mask; } -- cgit v1.2.3 From 723cda5b055851f5e8bf61aacd8008c43c99e801 Mon Sep 17 00:00:00 2001 From: Thanneeru Srinivasulu Date: Wed, 2 Dec 2015 15:36:13 +0530 Subject: net: thunderx: Force to load octeon-mdio before bgx driver. Signed-off-by: Thanneeru Srinivasulu Signed-off-by: Sunil Goutham Signed-off-by: David S. Miller --- drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 3 +++ drivers/net/ethernet/cavium/thunder/thunder_bgx.h | 1 + 2 files changed, 4 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c index 180aa9fabf48..2574a7ea1c0e 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c @@ -1009,6 +1009,9 @@ static int bgx_probe(struct pci_dev *pdev, const struct pci_device_id *ent) struct bgx *bgx = NULL; u8 lmac; + /* Load octeon mdio driver */ + octeon_mdiobus_force_mod_depencency(); + bgx = devm_kzalloc(dev, sizeof(*bgx), GFP_KERNEL); if (!bgx) return -ENOMEM; diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.h b/drivers/net/ethernet/cavium/thunder/thunder_bgx.h index 07b7ec66c60d..89a02fa26f79 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.h +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.h @@ -182,6 +182,7 @@ enum MCAST_MODE { #define BCAST_ACCEPT 1 #define CAM_ACCEPT 1 +void octeon_mdiobus_force_mod_depencency(void); void bgx_add_dmac_addr(u64 dmac, int node, int bgx_idx, int lmac); unsigned bgx_get_map(int node); int bgx_get_lmac_count(int node, int bgx); -- cgit v1.2.3 From a7b1f535a8d45816cfe25c0fd900fc726ba5acce Mon Sep 17 00:00:00 2001 From: Thanneeru Srinivasulu Date: Wed, 2 Dec 2015 15:36:14 +0530 Subject: net: thunderx: Wait for delayed work to finish before destroying it While VNIC or BGX driver teardown, wait for already scheduled delayed work to finish before destroying it. Signed-off-by: Thanneeru Srinivasulu Signed-off-by: Sunil Goutham Signed-off-by: David S. Miller --- drivers/net/ethernet/cavium/thunder/nic_main.c | 3 +-- drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/cavium/thunder/nic_main.c b/drivers/net/ethernet/cavium/thunder/nic_main.c index c561fdcb79a7..cfc24a1daff1 100644 --- a/drivers/net/ethernet/cavium/thunder/nic_main.c +++ b/drivers/net/ethernet/cavium/thunder/nic_main.c @@ -1074,8 +1074,7 @@ static void nic_remove(struct pci_dev *pdev) if (nic->check_link) { /* Destroy work Queue */ - cancel_delayed_work(&nic->dwork); - flush_workqueue(nic->check_link); + cancel_delayed_work_sync(&nic->dwork); destroy_workqueue(nic->check_link); } diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c index 2574a7ea1c0e..6534b7362091 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c @@ -695,8 +695,7 @@ static void bgx_lmac_disable(struct bgx *bgx, u8 lmacid) lmac = &bgx->lmac[lmacid]; if (lmac->check_link) { /* Destroy work queue */ - cancel_delayed_work(&lmac->dwork); - flush_workqueue(lmac->check_link); + cancel_delayed_work_sync(&lmac->dwork); destroy_workqueue(lmac->check_link); } -- cgit v1.2.3 From 006394a7cb20559418c602b8433ec1839b6fc1d3 Mon Sep 17 00:00:00 2001 From: Sunil Goutham Date: Wed, 2 Dec 2015 15:36:15 +0530 Subject: net: thunderx: Set CQ timer threshold properly Properly set CQ timer threshold and also set it to 2us. With previous incorrect settings it was set to 0.5us which is too less. Signed-off-by: Sunil Goutham Signed-off-by: David S. Miller --- drivers/net/ethernet/cavium/thunder/nic.h | 5 ++--- drivers/net/ethernet/cavium/thunder/nicvf_queues.c | 2 +- drivers/net/ethernet/cavium/thunder/nicvf_queues.h | 2 +- 3 files changed, 4 insertions(+), 5 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/cavium/thunder/nic.h b/drivers/net/ethernet/cavium/thunder/nic.h index d3950b20feb9..39ca6744a4e6 100644 --- a/drivers/net/ethernet/cavium/thunder/nic.h +++ b/drivers/net/ethernet/cavium/thunder/nic.h @@ -120,10 +120,9 @@ * Calculated for SCLK of 700Mhz * value written should be a 1/16th of what is expected * - * 1 tick per 0.05usec = value of 2.2 - * This 10% would be covered in CQ timer thresh value + * 1 tick per 0.025usec */ -#define NICPF_CLK_PER_INT_TICK 2 +#define NICPF_CLK_PER_INT_TICK 1 /* Time to wait before we decide that a SQ is stuck. * diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c index e404ea837727..206b6a71a545 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c +++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c @@ -592,7 +592,7 @@ void nicvf_cmp_queue_config(struct nicvf *nic, struct queue_set *qs, /* Set threshold value for interrupt generation */ nicvf_queue_reg_write(nic, NIC_QSET_CQ_0_7_THRESH, qidx, cq->thresh); nicvf_queue_reg_write(nic, NIC_QSET_CQ_0_7_CFG2, - qidx, nic->cq_coalesce_usecs); + qidx, CMP_QUEUE_TIMER_THRESH); } /* Configures transmit queue */ diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.h b/drivers/net/ethernet/cavium/thunder/nicvf_queues.h index fb4957d09914..033e8306e91c 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.h +++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.h @@ -76,7 +76,7 @@ #define CMP_QSIZE CMP_QUEUE_SIZE2 #define CMP_QUEUE_LEN (1ULL << (CMP_QSIZE + 10)) #define CMP_QUEUE_CQE_THRESH 0 -#define CMP_QUEUE_TIMER_THRESH 220 /* 10usec */ +#define CMP_QUEUE_TIMER_THRESH 80 /* ~2usec */ #define RBDR_SIZE RBDR_SIZE0 #define RCV_BUF_COUNT (1ULL << (RBDR_SIZE + 13)) -- cgit v1.2.3 From 0b72a9a1060e7547e71e7f600849a2d3006bf63a Mon Sep 17 00:00:00 2001 From: Sunil Goutham Date: Wed, 2 Dec 2015 15:36:16 +0530 Subject: net: thunderx: Switchon carrier only upon interface link up Call netif_carrier_on() only if interface's link is up. Switching this on upon IFF_UP by default, is causing issues with ethernet channel bonding in LACP mode. Initial NETDEV_CHANGE notification was being skipped. Also fixed some issues with link/speed/duplex reporting via ethtool. Signed-off-by: Sunil Goutham Signed-off-by: David S. Miller --- drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c | 16 +++++++++++++++- drivers/net/ethernet/cavium/thunder/nicvf_main.c | 4 +--- drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 2 ++ 3 files changed, 18 insertions(+), 4 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c b/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c index af54c10945c2..a12b2e38cf61 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c +++ b/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c @@ -112,6 +112,13 @@ static int nicvf_get_settings(struct net_device *netdev, cmd->supported = 0; cmd->transceiver = XCVR_EXTERNAL; + + if (!nic->link_up) { + cmd->duplex = DUPLEX_UNKNOWN; + ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN); + return 0; + } + if (nic->speed <= 1000) { cmd->port = PORT_MII; cmd->autoneg = AUTONEG_ENABLE; @@ -125,6 +132,13 @@ static int nicvf_get_settings(struct net_device *netdev, return 0; } +static u32 nicvf_get_link(struct net_device *netdev) +{ + struct nicvf *nic = netdev_priv(netdev); + + return nic->link_up; +} + static void nicvf_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *info) { @@ -660,7 +674,7 @@ static int nicvf_set_channels(struct net_device *dev, static const struct ethtool_ops nicvf_ethtool_ops = { .get_settings = nicvf_get_settings, - .get_link = ethtool_op_get_link, + .get_link = nicvf_get_link, .get_drvinfo = nicvf_get_drvinfo, .get_msglevel = nicvf_get_msglevel, .set_msglevel = nicvf_set_msglevel, diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c index 7f709cbdcd87..dde8dc720cd3 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c +++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c @@ -1057,6 +1057,7 @@ int nicvf_stop(struct net_device *netdev) netif_carrier_off(netdev); netif_tx_stop_all_queues(nic->netdev); + nic->link_up = false; /* Teardown secondary qsets first */ if (!nic->sqs_mode) { @@ -1211,9 +1212,6 @@ int nicvf_open(struct net_device *netdev) nic->drv_stats.txq_stop = 0; nic->drv_stats.txq_wake = 0; - netif_carrier_on(netdev); - netif_tx_start_all_queues(netdev); - return 0; cleanup: nicvf_disable_intr(nic, NICVF_INTR_MBOX, 0); diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c index 6534b7362091..d77e41a459b9 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c @@ -612,6 +612,8 @@ static void bgx_poll_for_link(struct work_struct *work) lmac->last_duplex = 1; } else { lmac->link_up = 0; + lmac->last_speed = SPEED_UNKNOWN; + lmac->last_duplex = DUPLEX_UNKNOWN; } if (lmac->last_link != lmac->link_up) { -- cgit v1.2.3 From bc69fdfc6c13b7350be9bcb48328d8f231ed98bb Mon Sep 17 00:00:00 2001 From: Sunil Goutham Date: Wed, 2 Dec 2015 15:36:17 +0530 Subject: net: thunderx: Enable BGX LMAC's RX/TX only after VF is up Enable or disable BGX LMAC's RX/TX based on corresponding VF's status. If otherwise, when multiple LMAC's physical link is up then packets from all LMAC's whose corresponding VF is not yet initialized will get forwarded to VF0. This is due to VNIC's default configuration where CPI, RSSI e.t.c point to VF0/QSET0/RQ0. This patch will prevent multiple copies of packets on VF0. Signed-off-by: Sunil Goutham Signed-off-by: David S. Miller --- drivers/net/ethernet/cavium/thunder/nic_main.c | 20 +++++++++++++++++++- drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 20 ++++++++++++++++++-- drivers/net/ethernet/cavium/thunder/thunder_bgx.h | 1 + 3 files changed, 38 insertions(+), 3 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/cavium/thunder/nic_main.c b/drivers/net/ethernet/cavium/thunder/nic_main.c index cfc24a1daff1..4b7fd63ae57c 100644 --- a/drivers/net/ethernet/cavium/thunder/nic_main.c +++ b/drivers/net/ethernet/cavium/thunder/nic_main.c @@ -37,6 +37,7 @@ struct nicpf { #define NIC_GET_BGX_FROM_VF_LMAC_MAP(map) ((map >> 4) & 0xF) #define NIC_GET_LMAC_FROM_VF_LMAC_MAP(map) (map & 0xF) u8 vf_lmac_map[MAX_LMAC]; + u8 lmac_cnt; struct delayed_work dwork; struct workqueue_struct *check_link; u8 link[MAX_LMAC]; @@ -279,6 +280,7 @@ static void nic_set_lmac_vf_mapping(struct nicpf *nic) u64 lmac_credit; nic->num_vf_en = 0; + nic->lmac_cnt = 0; for (bgx = 0; bgx < NIC_MAX_BGX; bgx++) { if (!(bgx_map & (1 << bgx))) @@ -288,6 +290,7 @@ static void nic_set_lmac_vf_mapping(struct nicpf *nic) nic->vf_lmac_map[next_bgx_lmac++] = NIC_SET_VF_LMAC_MAP(bgx, lmac); nic->num_vf_en += lmac_cnt; + nic->lmac_cnt += lmac_cnt; /* Program LMAC credits */ lmac_credit = (1ull << 1); /* channel credit enable */ @@ -715,6 +718,13 @@ static void nic_handle_mbx_intr(struct nicpf *nic, int vf) case NIC_MBOX_MSG_CFG_DONE: /* Last message of VF config msg sequence */ nic->vf_enabled[vf] = true; + if (vf >= nic->lmac_cnt) + goto unlock; + + bgx = NIC_GET_BGX_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]); + lmac = NIC_GET_LMAC_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]); + + bgx_lmac_rx_tx_enable(nic->node, bgx, lmac, true); goto unlock; case NIC_MBOX_MSG_SHUTDOWN: /* First msg in VF teardown sequence */ @@ -722,6 +732,14 @@ static void nic_handle_mbx_intr(struct nicpf *nic, int vf) if (vf >= nic->num_vf_en) nic->sqs_used[vf - nic->num_vf_en] = false; nic->pqs_vf[vf] = 0; + + if (vf >= nic->lmac_cnt) + break; + + bgx = NIC_GET_BGX_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]); + lmac = NIC_GET_LMAC_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]); + + bgx_lmac_rx_tx_enable(nic->node, bgx, lmac, false); break; case NIC_MBOX_MSG_ALLOC_SQS: nic_alloc_sqs(nic, &mbx.sqs_alloc); @@ -940,7 +958,7 @@ static void nic_poll_for_link(struct work_struct *work) mbx.link_status.msg = NIC_MBOX_MSG_BGX_LINK_CHANGE; - for (vf = 0; vf < nic->num_vf_en; vf++) { + for (vf = 0; vf < nic->lmac_cnt; vf++) { /* Poll only if VF is UP */ if (!nic->vf_enabled[vf]) continue; diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c index d77e41a459b9..9df26c2263bc 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c @@ -186,6 +186,23 @@ void bgx_set_lmac_mac(int node, int bgx_idx, int lmacid, const u8 *mac) } EXPORT_SYMBOL(bgx_set_lmac_mac); +void bgx_lmac_rx_tx_enable(int node, int bgx_idx, int lmacid, bool enable) +{ + struct bgx *bgx = bgx_vnic[(node * MAX_BGX_PER_CN88XX) + bgx_idx]; + u64 cfg; + + if (!bgx) + return; + + cfg = bgx_reg_read(bgx, lmacid, BGX_CMRX_CFG); + if (enable) + cfg |= CMR_PKT_RX_EN | CMR_PKT_TX_EN; + else + cfg &= ~(CMR_PKT_RX_EN | CMR_PKT_TX_EN); + bgx_reg_write(bgx, lmacid, BGX_CMRX_CFG, cfg); +} +EXPORT_SYMBOL(bgx_lmac_rx_tx_enable); + static void bgx_sgmii_change_link_state(struct lmac *lmac) { struct bgx *bgx = lmac->bgx; @@ -656,8 +673,7 @@ static int bgx_lmac_enable(struct bgx *bgx, u8 lmacid) } /* Enable lmac */ - bgx_reg_modify(bgx, lmacid, BGX_CMRX_CFG, - CMR_EN | CMR_PKT_RX_EN | CMR_PKT_TX_EN); + bgx_reg_modify(bgx, lmacid, BGX_CMRX_CFG, CMR_EN); /* Restore default cfg, incase low level firmware changed it */ bgx_reg_write(bgx, lmacid, BGX_CMRX_RX_DMAC_CTL, 0x03); diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.h b/drivers/net/ethernet/cavium/thunder/thunder_bgx.h index 89a02fa26f79..149e179363a1 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.h +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.h @@ -183,6 +183,7 @@ enum MCAST_MODE { #define CAM_ACCEPT 1 void octeon_mdiobus_force_mod_depencency(void); +void bgx_lmac_rx_tx_enable(int node, int bgx_idx, int lmacid, bool enable); void bgx_add_dmac_addr(u64 dmac, int node, int bgx_idx, int lmac); unsigned bgx_get_map(int node); int bgx_get_lmac_count(int node, int bgx); -- cgit v1.2.3 From db6ba9a5371f173489df126739d0a1c2a50f347b Mon Sep 17 00:00:00 2001 From: Marcin Wojtas Date: Mon, 30 Nov 2015 13:27:41 +0100 Subject: net: mvneta: add configuration for MBUS windows access protection This commit adds missing configuration of MBUS windows access protection in mvneta_conf_mbus_windows function - a dedicated variable for that purpose remained there unused since v3.8 initial mvneta support. Because of that the register contents were inherited from the bootloader. Signed-off-by: Marcin Wojtas Reviewed-by: Gregory CLEMENT Fixes: c5aff18204da ("net: mvneta: driver for Marvell Armada 370/XP network unit") Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/mvneta.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index e84c7f2634d3..2d8025603329 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -62,6 +62,7 @@ #define MVNETA_WIN_SIZE(w) (0x2204 + ((w) << 3)) #define MVNETA_WIN_REMAP(w) (0x2280 + ((w) << 2)) #define MVNETA_BASE_ADDR_ENABLE 0x2290 +#define MVNETA_ACCESS_PROTECT_ENABLE 0x2294 #define MVNETA_PORT_CONFIG 0x2400 #define MVNETA_UNI_PROMISC_MODE BIT(0) #define MVNETA_DEF_RXQ(q) ((q) << 1) @@ -3191,6 +3192,7 @@ static void mvneta_conf_mbus_windows(struct mvneta_port *pp, } mvreg_write(pp, MVNETA_BASE_ADDR_ENABLE, win_enable); + mvreg_write(pp, MVNETA_ACCESS_PROTECT_ENABLE, win_protect); } /* Power up the port */ -- cgit v1.2.3 From e5bdf689d32fcf3aaf548c71e715b303ba20b5d1 Mon Sep 17 00:00:00 2001 From: Marcin Wojtas Date: Mon, 30 Nov 2015 13:27:42 +0100 Subject: net: mvneta: fix bit assignment in MVNETA_RXQ_CONFIG_REG MVNETA_RXQ_HW_BUF_ALLOC bit which controls enabling hardware buffer allocation was mistakenly set as BIT(1). This commit fixes the assignment. Signed-off-by: Marcin Wojtas Reviewed-by: Gregory CLEMENT Fixes: c5aff18204da ("net: mvneta: driver for Marvell Armada 370/XP network unit") Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/mvneta.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 2d8025603329..64c46f03978c 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -36,7 +36,7 @@ /* Registers */ #define MVNETA_RXQ_CONFIG_REG(q) (0x1400 + ((q) << 2)) -#define MVNETA_RXQ_HW_BUF_ALLOC BIT(1) +#define MVNETA_RXQ_HW_BUF_ALLOC BIT(0) #define MVNETA_RXQ_PKT_OFFSET_ALL_MASK (0xf << 8) #define MVNETA_RXQ_PKT_OFFSET_MASK(offs) ((offs) << 8) #define MVNETA_RXQ_THRESHOLD_REG(q) (0x14c0 + ((q) << 2)) -- cgit v1.2.3 From dc1aadf6f1e7609590fadf7a0252413732289b2e Mon Sep 17 00:00:00 2001 From: Marcin Wojtas Date: Mon, 30 Nov 2015 13:27:43 +0100 Subject: net: mvneta: fix bit assignment for RX packet irq enable A value originally defined in the driver was inappropriate. Even though the ingress was somehow working, writing MVNETA_RXQ_INTR_ENABLE_ALL_MASK to MVNETA_INTR_ENABLE didn't make any effect, because the bits [31:16] are reserved and read-only. This commit updates MVNETA_RXQ_INTR_ENABLE_ALL_MASK to be compliant with the controller's documentation. Signed-off-by: Marcin Wojtas Fixes: c5aff18204da ("net: mvneta: driver for Marvell Armada 370/XP network unit") Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/mvneta.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 64c46f03978c..5dffb6831236 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -160,7 +160,7 @@ #define MVNETA_INTR_ENABLE 0x25b8 #define MVNETA_TXQ_INTR_ENABLE_ALL_MASK 0x0000ff00 -#define MVNETA_RXQ_INTR_ENABLE_ALL_MASK 0xff000000 // note: neta says it's 0x000000FF +#define MVNETA_RXQ_INTR_ENABLE_ALL_MASK 0x000000ff #define MVNETA_RXQ_CMD 0x2680 #define MVNETA_RXQ_DISABLE_SHIFT 8 -- cgit v1.2.3 From 26c17a179f3f64f92de6e837c14279a6431a7ab6 Mon Sep 17 00:00:00 2001 From: Marcin Wojtas Date: Mon, 30 Nov 2015 13:27:44 +0100 Subject: net: mvneta: fix error path for building skb In the actual RX processing, there is same error path for both descriptor ring refilling and building skb fails. This is not correct, because after successful refill, the ring is already updated with newly allocated buffer. Then, in case of build_skb() fail, hitherto code left the original buffer unmapped. This patch fixes above situation by swapping error check of skb build with DMA-unmap of original buffer. Signed-off-by: Marcin Wojtas Acked-by: Simon Guinot Cc: # v4.2+ Fixes a84e32894191 ("net: mvneta: fix refilling for Rx DMA buffers") Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/mvneta.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 5dffb6831236..5a98c5d61a2b 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -1580,12 +1580,16 @@ static int mvneta_rx(struct mvneta_port *pp, int rx_todo, } skb = build_skb(data, pp->frag_size > PAGE_SIZE ? 0 : pp->frag_size); - if (!skb) - goto err_drop_frame; + /* After refill old buffer has to be unmapped regardless + * the skb is successfully built or not. + */ dma_unmap_single(dev->dev.parent, phys_addr, MVNETA_RX_BUF_SIZE(pp->pkt_size), DMA_FROM_DEVICE); + if (!skb) + goto err_drop_frame; + rcvd_pkts++; rcvd_bytes += rx_bytes; -- cgit v1.2.3 From 9110ee07762a8f04835878863be2449362c63508 Mon Sep 17 00:00:00 2001 From: Marcin Wojtas Date: Mon, 30 Nov 2015 13:27:45 +0100 Subject: net: mvneta: enable setting custom TX IP checksum limit Since Armada 38x SoC can support IP checksum for jumbo frames only on a single port, it means that this feature should be enabled per-port, rather than for the whole SoC. This patch enables setting custom TX IP checksum limit by adding new optional property to the mvneta device tree node. If not used, by default 1600B is set for "marvell,armada-370-neta" and 9800B for other strings, which ensures backward compatibility. Binding documentation is updated accordingly. Signed-off-by: Marcin Wojtas Signed-off-by: David S. Miller --- .../bindings/net/marvell-armada-370-neta.txt | 6 ++++++ drivers/net/ethernet/marvell/mvneta.c | 19 +++++++++++++++++-- 2 files changed, 23 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt b/Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt index f5a8ca29aff0..aeea50c84e92 100644 --- a/Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt +++ b/Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt @@ -8,6 +8,11 @@ Required properties: - phy-mode: See ethernet.txt file in the same directory - clocks: a pointer to the reference clock for this device. +Optional properties: +- tx-csum-limit: maximum mtu supported by port that allow TX checksum. + Value is presented in bytes. If not used, by default 1600B is set for + "marvell,armada-370-neta" and 9800B for others. + Example: ethernet@d0070000 { @@ -15,6 +20,7 @@ ethernet@d0070000 { reg = <0xd0070000 0x2500>; interrupts = <8>; clocks = <&gate_clk 4>; + tx-csum-limit = <9800> status = "okay"; phy = <&phy0>; phy-mode = "rgmii-id"; diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 5a98c5d61a2b..ed622fa29dfa 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -243,6 +243,7 @@ #define MVNETA_VLAN_TAG_LEN 4 #define MVNETA_CPU_D_CACHE_LINE_SIZE 32 +#define MVNETA_TX_CSUM_DEF_SIZE 1600 #define MVNETA_TX_CSUM_MAX_SIZE 9800 #define MVNETA_ACC_MODE_EXT 1 @@ -3256,6 +3257,7 @@ static int mvneta_probe(struct platform_device *pdev) char hw_mac_addr[ETH_ALEN]; const char *mac_from; const char *managed; + int tx_csum_limit; int phy_mode; int err; int cpu; @@ -3356,8 +3358,21 @@ static int mvneta_probe(struct platform_device *pdev) } } - if (of_device_is_compatible(dn, "marvell,armada-370-neta")) - pp->tx_csum_limit = 1600; + if (!of_property_read_u32(dn, "tx-csum-limit", &tx_csum_limit)) { + if (tx_csum_limit < 0 || + tx_csum_limit > MVNETA_TX_CSUM_MAX_SIZE) { + tx_csum_limit = MVNETA_TX_CSUM_DEF_SIZE; + dev_info(&pdev->dev, + "Wrong TX csum limit in DT, set to %dB\n", + MVNETA_TX_CSUM_DEF_SIZE); + } + } else if (of_device_is_compatible(dn, "marvell,armada-370-neta")) { + tx_csum_limit = MVNETA_TX_CSUM_DEF_SIZE; + } else { + tx_csum_limit = MVNETA_TX_CSUM_MAX_SIZE; + } + + pp->tx_csum_limit = tx_csum_limit; pp->tx_ring_size = MVNETA_MAX_TXD; pp->rx_ring_size = MVNETA_MAX_RXD; -- cgit v1.2.3 From 39198ec98751477313f30569b935503b216f85d0 Mon Sep 17 00:00:00 2001 From: Vladimir Zapolskiy Date: Wed, 2 Dec 2015 08:12:13 +0200 Subject: net: lpc_eth: remove irq > NR_IRQS check from probe() If the driver is used on an ARM platform with SPARSE_IRQ defined, semantics of NR_IRQS is different (minimal value of virtual irqs) and by default it is set to 16, see arch/arm/include/asm/irq.h. This value may be less than the actual number of virtual irqs, which may break the driver initialization. The check removal allows to use the driver on such a platform, and, if irq controller driver works correctly, the check is not needed on legacy platforms. Fixes a runtime problem: lpc-eth 31060000.ethernet: error getting resources. lpc_eth: lpc-eth: not found (-6). Signed-off-by: Vladimir Zapolskiy Signed-off-by: David S. Miller --- drivers/net/ethernet/nxp/lpc_eth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c index b159ef8303cc..057665180f13 100644 --- a/drivers/net/ethernet/nxp/lpc_eth.c +++ b/drivers/net/ethernet/nxp/lpc_eth.c @@ -1326,7 +1326,7 @@ static int lpc_eth_drv_probe(struct platform_device *pdev) /* Get platform resources */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); irq = platform_get_irq(pdev, 0); - if ((!res) || (irq < 0) || (irq >= NR_IRQS)) { + if (!res || irq < 0) { dev_err(&pdev->dev, "error getting resources.\n"); ret = -ENXIO; goto err_exit; -- cgit v1.2.3 From 1fc2cfd03bbf8f1f8b6b90f0858faba8bd6631c4 Mon Sep 17 00:00:00 2001 From: Jeffrey Huang Date: Wed, 2 Dec 2015 01:54:06 -0500 Subject: bnxt_en: Fixed incorrect implementation of ndo_set_mac_address The existing ndo_set_mac_address only copies the new MAC addr and didn't set the new MAC addr to the HW. The correct way is to delete the existing default MAC filter from HW and add the new one. Because of RFS filters are also dependent on the default mac filter l2 context, the driver must go thru close_nic() to delete the default MAC and RFS filters, then open_nic() to set the default MAC address to HW. Signed-off-by: Jeffrey Huang Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index db15c5ee09c5..651b5878eba1 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -5212,13 +5212,22 @@ init_err: static int bnxt_change_mac_addr(struct net_device *dev, void *p) { struct sockaddr *addr = p; + struct bnxt *bp = netdev_priv(dev); + int rc = 0; if (!is_valid_ether_addr(addr->sa_data)) return -EADDRNOTAVAIL; + if (ether_addr_equal(addr->sa_data, dev->dev_addr)) + return 0; + memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); + if (netif_running(dev)) { + bnxt_close_nic(bp, false, false); + rc = bnxt_open_nic(bp, false, false); + } - return 0; + return rc; } /* rtnl_lock held */ -- cgit v1.2.3 From bdd4347b33f480187b44699cf1caac9400496d6d Mon Sep 17 00:00:00 2001 From: Jeffrey Huang Date: Wed, 2 Dec 2015 01:54:07 -0500 Subject: bnxt_en: enforce proper storing of MAC address For PF, the bp->pf.mac_addr always holds the permanent MAC addr assigned by the HW. For VF, the bp->vf.mac_addr always holds the administrator assigned VF MAC addr. The random generated VF MAC addr should never get stored to bp->vf.mac_addr. This way, when the VF wants to change the MAC address, we can tell if the adminstrator has already set it and disallow the VF from changing it. v2: Fix compile error if CONFIG_BNXT_SRIOV is not set. Signed-off-by: Jeffrey Huang Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 20 +++++++++++++------- drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c | 7 +++---- 2 files changed, 16 insertions(+), 11 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 651b5878eba1..f0481dc97ea0 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -3625,6 +3625,7 @@ static int bnxt_hwrm_func_qcaps(struct bnxt *bp) pf->fw_fid = le16_to_cpu(resp->fid); pf->port_id = le16_to_cpu(resp->port_id); memcpy(pf->mac_addr, resp->perm_mac_address, ETH_ALEN); + memcpy(bp->dev->dev_addr, pf->mac_addr, ETH_ALEN); pf->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx); pf->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings); pf->max_tx_rings = le16_to_cpu(resp->max_tx_rings); @@ -3648,8 +3649,11 @@ static int bnxt_hwrm_func_qcaps(struct bnxt *bp) vf->fw_fid = le16_to_cpu(resp->fid); memcpy(vf->mac_addr, resp->perm_mac_address, ETH_ALEN); - if (!is_valid_ether_addr(vf->mac_addr)) - random_ether_addr(vf->mac_addr); + if (is_valid_ether_addr(vf->mac_addr)) + /* overwrite netdev dev_adr with admin VF MAC */ + memcpy(bp->dev->dev_addr, vf->mac_addr, ETH_ALEN); + else + random_ether_addr(bp->dev->dev_addr); vf->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx); vf->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings); @@ -5218,6 +5222,11 @@ static int bnxt_change_mac_addr(struct net_device *dev, void *p) if (!is_valid_ether_addr(addr->sa_data)) return -EADDRNOTAVAIL; +#ifdef CONFIG_BNXT_SRIOV + if (BNXT_VF(bp) && is_valid_ether_addr(bp->vf.mac_addr)) + return -EADDRNOTAVAIL; +#endif + if (ether_addr_equal(addr->sa_data, dev->dev_addr)) return 0; @@ -5695,15 +5704,12 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) bnxt_set_tpa_flags(bp); bnxt_set_ring_params(bp); dflt_rings = netif_get_num_default_rss_queues(); - if (BNXT_PF(bp)) { - memcpy(dev->dev_addr, bp->pf.mac_addr, ETH_ALEN); + if (BNXT_PF(bp)) bp->pf.max_irqs = max_irqs; - } else { #if defined(CONFIG_BNXT_SRIOV) - memcpy(dev->dev_addr, bp->vf.mac_addr, ETH_ALEN); + else bp->vf.max_irqs = max_irqs; #endif - } bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings); bp->rx_nr_rings = min_t(int, dflt_rings, max_rx_rings); bp->tx_nr_rings_per_tc = min_t(int, dflt_rings, max_tx_rings); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c index f4cf68861069..7a9af2887d8e 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c @@ -804,10 +804,9 @@ void bnxt_update_vf_mac(struct bnxt *bp) if (!is_valid_ether_addr(resp->perm_mac_address)) goto update_vf_mac_exit; - if (ether_addr_equal(resp->perm_mac_address, bp->vf.mac_addr)) - goto update_vf_mac_exit; - - memcpy(bp->vf.mac_addr, resp->perm_mac_address, ETH_ALEN); + if (!ether_addr_equal(resp->perm_mac_address, bp->vf.mac_addr)) + memcpy(bp->vf.mac_addr, resp->perm_mac_address, ETH_ALEN); + /* overwrite netdev dev_adr with admin VF MAC */ memcpy(bp->dev->dev_addr, bp->vf.mac_addr, ETH_ALEN); update_vf_mac_exit: mutex_unlock(&bp->hwrm_cmd_lock); -- cgit v1.2.3 From b664f008b0d885db1d5617ed1c51d29a8c04da93 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Wed, 2 Dec 2015 01:54:08 -0500 Subject: bnxt_en: Setup uc_list mac filters after resetting the chip. Call bnxt_cfg_rx_mode() in bnxt_init_chip() to setup uc_list and mc_list mac address filters. Before the patch, uc_list is not setup again after chip reset (such as ethtool ring size change) and macvlans don't work any more after that. Modify bnxt_cfg_rx_mode() to return error codes appropriately so that the init chip sequence can detect any failures. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index f0481dc97ea0..bdf094fb6ef9 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -3884,6 +3884,8 @@ static int bnxt_alloc_rfs_vnics(struct bnxt *bp) #endif } +static int bnxt_cfg_rx_mode(struct bnxt *); + static int bnxt_init_chip(struct bnxt *bp, bool irq_re_init) { int rc = 0; @@ -3950,11 +3952,9 @@ static int bnxt_init_chip(struct bnxt *bp, bool irq_re_init) bp->vnic_info[0].rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS; - rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, 0); - if (rc) { - netdev_err(bp->dev, "HWRM cfa l2 rx mask failure rc: %x\n", rc); + rc = bnxt_cfg_rx_mode(bp); + if (rc) goto err_out; - } rc = bnxt_hwrm_set_coal(bp); if (rc) @@ -4869,7 +4869,7 @@ static void bnxt_set_rx_mode(struct net_device *dev) } } -static void bnxt_cfg_rx_mode(struct bnxt *bp) +static int bnxt_cfg_rx_mode(struct bnxt *bp) { struct net_device *dev = bp->dev; struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; @@ -4918,6 +4918,7 @@ static void bnxt_cfg_rx_mode(struct bnxt *bp) netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", rc); vnic->uc_filter_count = i; + return rc; } } @@ -4926,6 +4927,8 @@ skip_uc: if (rc) netdev_err(bp->dev, "HWRM cfa l2 rx mask failure rc: %x\n", rc); + + return rc; } static netdev_features_t bnxt_fix_features(struct net_device *dev, -- cgit v1.2.3 From cf18b7788fe1bf99e9c2ab580b065bf2d3cb1a34 Mon Sep 17 00:00:00 2001 From: Jérôme Pouiller Date: Thu, 3 Dec 2015 10:02:35 +0100 Subject: net: phy: reset only targeted phy MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It is possible to address another chip on same MDIO bus. The case is correctly handled for media advertising. It is taken into account only if mii_data->phy_id == phydev->addr. However, this condition was missing for reset case. Signed-off-by: Jérôme Pouiller Signed-off-by: David S. Miller --- drivers/net/phy/phy.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 48ce6ef400fe..47cd306dbb3c 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -448,7 +448,8 @@ int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd) mdiobus_write(phydev->bus, mii_data->phy_id, mii_data->reg_num, val); - if (mii_data->reg_num == MII_BMCR && + if (mii_data->phy_id == phydev->addr && + mii_data->reg_num == MII_BMCR && val & BMCR_RESET) return phy_init_hw(phydev); -- cgit v1.2.3