From da4282c17d695b9311608aa63b3c633e649aadea Mon Sep 17 00:00:00 2001 From: Jiang Wang Date: Thu, 24 Dec 2020 01:12:42 +0000 Subject: selftests/bpf: Fix a compile error for BPF_F_BPRM_SECUREEXEC When CONFIG_BPF_LSM is not configured, running bpf selftesting will show BPF_F_BPRM_SECUREEXEC undefined error for bprm_opts.c. The problem is that bprm_opts.c includes vmliunx.h. The vmlinux.h is generated by "bpftool btf dump file ./vmlinux format c". On the other hand, BPF_F_BPRM_SECUREEXEC is defined in include/uapi/linux/bpf.h and used only in bpf_lsm.c. When CONFIG_BPF_LSM is not set, bpf_lsm will not be compiled, so vmlinux.h will not include definition of BPF_F_BPRM_SECUREEXEC. Ideally, we want to compile bpf selftest regardless of the configuration setting, so change the include file from vmlinux.h to bpf.h. Signed-off-by: Jiang Wang Signed-off-by: Daniel Borkmann Acked-by: Song Liu Acked-by: John Fastabend Link: https://lore.kernel.org/bpf/20201224011242.585967-1-jiang.wang@bytedance.com --- tools/testing/selftests/bpf/progs/bprm_opts.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/progs/bprm_opts.c b/tools/testing/selftests/bpf/progs/bprm_opts.c index 5bfef2887e70..418d9c6d4952 100644 --- a/tools/testing/selftests/bpf/progs/bprm_opts.c +++ b/tools/testing/selftests/bpf/progs/bprm_opts.c @@ -4,7 +4,7 @@ * Copyright 2020 Google LLC. */ -#include "vmlinux.h" +#include #include #include #include -- cgit v1.2.3 From 04901aab40ea3779f6fc6383ef74d8e130e817bf Mon Sep 17 00:00:00 2001 From: Yonghong Song Date: Wed, 30 Dec 2020 21:24:18 -0800 Subject: bpf: Fix a task_iter bug caused by a merge conflict resolution Latest bpf tree has a bug for bpf_iter selftest: $ ./test_progs -n 4/25 test_bpf_sk_storage_get:PASS:bpf_iter_bpf_sk_storage_helpers__open_and_load 0 nsec test_bpf_sk_storage_get:PASS:socket 0 nsec ... do_dummy_read:PASS:read 0 nsec test_bpf_sk_storage_get:FAIL:bpf_map_lookup_elem map value wasn't set correctly (expected 1792, got -1, err=0) #4/25 bpf_sk_storage_get:FAIL #4 bpf_iter:FAIL Summary: 0/0 PASSED, 0 SKIPPED, 2 FAILED When doing merge conflict resolution, Commit 4bfc4714849d missed to save curr_task to seq_file private data. The task pointer in seq_file private data is passed to bpf program. This caused NULL-pointer task passed to bpf program which will immediately return upon checking whether task pointer is NULL. This patch added back the assignment of curr_task to seq_file private data and fixed the issue. Fixes: 4bfc4714849d ("Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf") Signed-off-by: Yonghong Song Signed-off-by: Daniel Borkmann Acked-by: John Fastabend Link: https://lore.kernel.org/bpf/20201231052418.577024-1-yhs@fb.com --- kernel/bpf/task_iter.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/bpf/task_iter.c b/kernel/bpf/task_iter.c index 3efe38191d1c..175b7b42bfc4 100644 --- a/kernel/bpf/task_iter.c +++ b/kernel/bpf/task_iter.c @@ -159,6 +159,7 @@ again: } /* set info->task and info->tid */ + info->task = curr_task; if (curr_tid == info->tid) { curr_fd = info->fd; } else { -- cgit v1.2.3 From 2860d45a589818dd8ffd90cdc4bcf77f36a5a6be Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sun, 3 Jan 2021 22:36:17 +0100 Subject: qed: select CONFIG_CRC32 Without this, the driver fails to link: lpc_eth.c:(.text+0x1934): undefined reference to `crc32_le' arm-linux-gnueabi-ld: drivers/net/ethernet/qlogic/qed/qed_debug.o: in function `qed_grc_dump': qed_debug.c:(.text+0x4068): undefined reference to `crc32_le' arm-linux-gnueabi-ld: drivers/net/ethernet/qlogic/qed/qed_debug.o: in function `qed_idle_chk_dump': qed_debug.c:(.text+0x51fc): undefined reference to `crc32_le' arm-linux-gnueabi-ld: drivers/net/ethernet/qlogic/qed/qed_debug.o: in function `qed_mcp_trace_dump': qed_debug.c:(.text+0x6000): undefined reference to `crc32_le' arm-linux-gnueabi-ld: drivers/net/ethernet/qlogic/qed/qed_debug.o: in function `qed_dbg_reg_fifo_dump': qed_debug.c:(.text+0x66cc): undefined reference to `crc32_le' arm-linux-gnueabi-ld: drivers/net/ethernet/qlogic/qed/qed_debug.o:qed_debug.c:(.text+0x6aa4): more undefined references to `crc32_le' follow Fixes: 7a4b21b7d1f0 ("qed: Add nvram selftest") Signed-off-by: Arnd Bergmann Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/qlogic/Kconfig b/drivers/net/ethernet/qlogic/Kconfig index 4366c7a8de95..6b5ddb07ee83 100644 --- a/drivers/net/ethernet/qlogic/Kconfig +++ b/drivers/net/ethernet/qlogic/Kconfig @@ -78,6 +78,7 @@ config QED depends on PCI select ZLIB_INFLATE select CRC8 + select CRC32 select NET_DEVLINK help This enables the support for Marvell FastLinQ adapters family. -- cgit v1.2.3 From f9d6f94132f01d2a552dcbab54fa56496638186d Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sun, 3 Jan 2021 22:36:18 +0100 Subject: phy: dp83640: select CONFIG_CRC32 Without crc32, this driver fails to link: arm-linux-gnueabi-ld: drivers/net/phy/dp83640.o: in function `match': dp83640.c:(.text+0x476c): undefined reference to `crc32_le' Fixes: 539e44d26855 ("dp83640: Include hash in timestamp/packet matching") Signed-off-by: Arnd Bergmann Reviewed-by: Andrew Lunn Acked-by: Richard Cochran Signed-off-by: David S. Miller --- drivers/ptp/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/ptp/Kconfig b/drivers/ptp/Kconfig index 476d7c7fe70a..d2bf05ccbbe2 100644 --- a/drivers/ptp/Kconfig +++ b/drivers/ptp/Kconfig @@ -64,6 +64,7 @@ config DP83640_PHY depends on NETWORK_PHY_TIMESTAMPING depends on PHYLIB depends on PTP_1588_CLOCK + select CRC32 help Supports the DP83640 PHYTER with IEEE 1588 features. -- cgit v1.2.3 From 1d48595c786b1b9dc6be301e8d7f6fc74e9882aa Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sun, 3 Jan 2021 22:36:19 +0100 Subject: can: kvaser_pciefd: select CONFIG_CRC32 Without crc32, this driver fails to link: arm-linux-gnueabi-ld: drivers/net/can/kvaser_pciefd.o: in function `kvaser_pciefd_probe': kvaser_pciefd.c:(.text+0x2b0): undefined reference to `crc32_be' Fixes: 26ad340e582d ("can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices") Signed-off-by: Arnd Bergmann Acked-by: Marc Kleine-Budde Signed-off-by: David S. Miller --- drivers/net/can/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig index 424970939fd4..1c28eade6bec 100644 --- a/drivers/net/can/Kconfig +++ b/drivers/net/can/Kconfig @@ -123,6 +123,7 @@ config CAN_JANZ_ICAN3 config CAN_KVASER_PCIEFD depends on PCI tristate "Kvaser PCIe FD cards" + select CRC32 help This is a driver for the Kvaser PCI Express CAN FD family. -- cgit v1.2.3 From e186620d7bf11b274b985b839c38266d7918cc05 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sun, 3 Jan 2021 22:36:20 +0100 Subject: wil6210: select CONFIG_CRC32 Without crc32, the driver fails to link: arm-linux-gnueabi-ld: drivers/net/wireless/ath/wil6210/fw.o: in function `wil_fw_verify': fw.c:(.text+0x74c): undefined reference to `crc32_le' arm-linux-gnueabi-ld: drivers/net/wireless/ath/wil6210/fw.o:fw.c:(.text+0x758): more undefined references to `crc32_le' follow Fixes: 151a9706503f ("wil6210: firmware download") Signed-off-by: Arnd Bergmann Signed-off-by: David S. Miller --- drivers/net/wireless/ath/wil6210/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/ath/wil6210/Kconfig b/drivers/net/wireless/ath/wil6210/Kconfig index 6a95b199bf62..f074e9c31aa2 100644 --- a/drivers/net/wireless/ath/wil6210/Kconfig +++ b/drivers/net/wireless/ath/wil6210/Kconfig @@ -2,6 +2,7 @@ config WIL6210 tristate "Wilocity 60g WiFi card wil6210 support" select WANT_DEV_COREDUMP + select CRC32 depends on CFG80211 depends on PCI default n -- cgit v1.2.3 From 152a8a6c017bfdeda7f6d052fbc6e151891bd9b6 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sun, 3 Jan 2021 22:36:21 +0100 Subject: cfg80211: select CONFIG_CRC32 Without crc32 support, this fails to link: arm-linux-gnueabi-ld: net/wireless/scan.o: in function `cfg80211_scan_6ghz': scan.c:(.text+0x928): undefined reference to `crc32_le' Fixes: c8cb5b854b40 ("nl80211/cfg80211: support 6 GHz scanning") Signed-off-by: Arnd Bergmann Signed-off-by: David S. Miller --- net/wireless/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig index 27026f587fa6..f620acd2a0f5 100644 --- a/net/wireless/Kconfig +++ b/net/wireless/Kconfig @@ -21,6 +21,7 @@ config CFG80211 tristate "cfg80211 - wireless configuration API" depends on RFKILL || !RFKILL select FW_LOADER + select CRC32 # may need to update this when certificates are changed and are # using a different algorithm, though right now they shouldn't # (this is here rather than below to allow it to be a module) -- cgit v1.2.3 From 51049bd903a81307f751babe15a1df8d197884e8 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sun, 3 Jan 2021 22:36:22 +0100 Subject: misdn: dsp: select CONFIG_BITREVERSE Without this, we run into a link error arm-linux-gnueabi-ld: drivers/isdn/mISDN/dsp_audio.o: in function `dsp_audio_generate_law_tables': (.text+0x30c): undefined reference to `byte_rev_table' arm-linux-gnueabi-ld: drivers/isdn/mISDN/dsp_audio.o:(.text+0x5e4): more undefined references to `byte_rev_table' follow Signed-off-by: Arnd Bergmann Signed-off-by: David S. Miller --- drivers/isdn/mISDN/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/isdn/mISDN/Kconfig b/drivers/isdn/mISDN/Kconfig index 26cf0ac9c4ad..c9a53c222472 100644 --- a/drivers/isdn/mISDN/Kconfig +++ b/drivers/isdn/mISDN/Kconfig @@ -13,6 +13,7 @@ if MISDN != n config MISDN_DSP tristate "Digital Audio Processing of transparent data" depends on MISDN + select BITREVERSE help Enable support for digital audio processing capability. -- cgit v1.2.3 From 69931e11288520c250152180ecf9b6ac5e6e40ed Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sun, 3 Jan 2021 22:36:23 +0100 Subject: wan: ds26522: select CONFIG_BITREVERSE Without this, the driver runs into a link failure arm-linux-gnueabi-ld: drivers/net/wan/slic_ds26522.o: in function `slic_ds26522_probe': slic_ds26522.c:(.text+0x100c): undefined reference to `byte_rev_table' arm-linux-gnueabi-ld: slic_ds26522.c:(.text+0x1cdc): undefined reference to `byte_rev_table' arm-linux-gnueabi-ld: drivers/net/wan/slic_ds26522.o: in function `slic_write': slic_ds26522.c:(.text+0x1e4c): undefined reference to `byte_rev_table' Fixes: c37d4a0085c5 ("Maxim/driver: Add driver for maxim ds26522") Signed-off-by: Arnd Bergmann Signed-off-by: David S. Miller --- drivers/net/wan/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wan/Kconfig b/drivers/net/wan/Kconfig index 4029fde71a9e..83c9481995dd 100644 --- a/drivers/net/wan/Kconfig +++ b/drivers/net/wan/Kconfig @@ -282,6 +282,7 @@ config SLIC_DS26522 tristate "Slic Maxim ds26522 card support" depends on SPI depends on FSL_SOC || ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST + select BITREVERSE help This module initializes and configures the slic maxim card in T1 or E1 mode. -- cgit v1.2.3 From 0f7ba7bc46fa0b574ccacf5672991b321e028492 Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Sun, 3 Jan 2021 11:26:26 +1100 Subject: net/sonic: Fix some resource leaks in error handling paths A call to dma_alloc_coherent() is wrapped by sonic_alloc_descriptors(). This is correctly freed in the remove function, but not in the error handling path of the probe function. Fix this by adding the missing dma_free_coherent() call. While at it, rename a label in order to be slightly more informative. Cc: Christophe JAILLET Cc: Thomas Bogendoerfer Cc: Chris Zankel References: commit 10e3cc180e64 ("net/sonic: Fix a resource leak in an error handling path in 'jazz_sonic_probe()'") Fixes: 74f2a5f0ef64 ("xtensa: Add support for the Sonic Ethernet device for the XT2000 board.") Fixes: efcce839360f ("[PATCH] macsonic/jazzsonic network drivers update") Signed-off-by: Christophe JAILLET Signed-off-by: Finn Thain Signed-off-by: David S. Miller --- drivers/net/ethernet/natsemi/macsonic.c | 12 ++++++++++-- drivers/net/ethernet/natsemi/xtsonic.c | 7 +++++-- 2 files changed, 15 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/natsemi/macsonic.c b/drivers/net/ethernet/natsemi/macsonic.c index 776b7d264dc3..2289e1fe3741 100644 --- a/drivers/net/ethernet/natsemi/macsonic.c +++ b/drivers/net/ethernet/natsemi/macsonic.c @@ -506,10 +506,14 @@ static int mac_sonic_platform_probe(struct platform_device *pdev) err = register_netdev(dev); if (err) - goto out; + goto undo_probe; return 0; +undo_probe: + dma_free_coherent(lp->device, + SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode), + lp->descriptors, lp->descriptors_laddr); out: free_netdev(dev); @@ -584,12 +588,16 @@ static int mac_sonic_nubus_probe(struct nubus_board *board) err = register_netdev(ndev); if (err) - goto out; + goto undo_probe; nubus_set_drvdata(board, ndev); return 0; +undo_probe: + dma_free_coherent(lp->device, + SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode), + lp->descriptors, lp->descriptors_laddr); out: free_netdev(ndev); return err; diff --git a/drivers/net/ethernet/natsemi/xtsonic.c b/drivers/net/ethernet/natsemi/xtsonic.c index afa166ff7aef..28d9e98db81a 100644 --- a/drivers/net/ethernet/natsemi/xtsonic.c +++ b/drivers/net/ethernet/natsemi/xtsonic.c @@ -229,11 +229,14 @@ int xtsonic_probe(struct platform_device *pdev) sonic_msg_init(dev); if ((err = register_netdev(dev))) - goto out1; + goto undo_probe1; return 0; -out1: +undo_probe1: + dma_free_coherent(lp->device, + SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode), + lp->descriptors, lp->descriptors_laddr); release_region(dev->base_addr, SONIC_MEM_SIZE); out: free_netdev(dev); -- cgit v1.2.3 From cf0720697143f3eaa0779cca5a6602d8557d1c6f Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Wed, 30 Dec 2020 19:37:53 -0800 Subject: net: suggest L2 discards be counted towards rx_dropped From the existing definitions it's unclear which stat to use to report filtering based on L2 dst addr in old broadcast-medium Ethernet. Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller --- include/uapi/linux/if_link.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h index 874cc12a34d9..82708c6db432 100644 --- a/include/uapi/linux/if_link.h +++ b/include/uapi/linux/if_link.h @@ -75,8 +75,9 @@ struct rtnl_link_stats { * * @rx_dropped: Number of packets received but not processed, * e.g. due to lack of resources or unsupported protocol. - * For hardware interfaces this counter should not include packets - * dropped by the device which are counted separately in + * For hardware interfaces this counter may include packets discarded + * due to L2 address filtering but should not include packets dropped + * by the device due to buffer exhaustion which are counted separately in * @rx_missed_errors (since procfs folds those two counters together). * * @tx_dropped: Number of packets dropped on their way to transmission, -- cgit v1.2.3 From 55b7ab1178cbf41f979ff83236d3321ad35ed2ad Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Wed, 30 Dec 2020 19:40:27 -0800 Subject: net: vlan: avoid leaks on register_vlan_dev() failures VLAN checks for NETREG_UNINITIALIZED to distinguish between registration failure and unregistration in progress. Since commit cb626bf566eb ("net-sysfs: Fix reference count leak") registration failure may, however, result in NETREG_UNREGISTERED as well as NETREG_UNINITIALIZED. This fix is similer to cebb69754f37 ("rtnetlink: Fix memory(net_device) leak when ->newlink fails") Fixes: cb626bf566eb ("net-sysfs: Fix reference count leak") Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller --- net/8021q/vlan.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index f292e0267bb9..15bbfaf943fd 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -284,7 +284,8 @@ static int register_vlan_device(struct net_device *real_dev, u16 vlan_id) return 0; out_free_newdev: - if (new_dev->reg_state == NETREG_UNINITIALIZED) + if (new_dev->reg_state == NETREG_UNINITIALIZED || + new_dev->reg_state == NETREG_UNREGISTERED) free_netdev(new_dev); return err; } -- cgit v1.2.3 From 7eeecc4b1f480c7ba1932cb9a7693f8c452640f2 Mon Sep 17 00:00:00 2001 From: Samuel Holland Date: Sun, 3 Jan 2021 05:17:41 -0600 Subject: net: stmmac: dwmac-sun8i: Fix probe error handling stmmac_pltfr_remove does three things in one function, making it inapproprate for unwinding the steps in the probe function. Currently, a failure before the call to stmmac_dvr_probe would leak OF node references due to missing a call to stmmac_remove_config_dt. And an error in stmmac_dvr_probe would cause the driver to attempt to remove a netdevice that was never added. Fix these by reordering the init and splitting out the error handling steps. Fixes: 9f93ac8d4085 ("net-next: stmmac: Add dwmac-sun8i") Fixes: 40a1dcee2d18 ("net: ethernet: dwmac-sun8i: Use the correct function in exit path") Signed-off-by: Samuel Holland Reviewed-by: Chen-Yu Tsai Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 25 ++++++++++++++--------- 1 file changed, 15 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c index 58e0511badba..b20f261fce5b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c @@ -1134,10 +1134,6 @@ static int sun8i_dwmac_probe(struct platform_device *pdev) if (ret) return ret; - plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); - if (IS_ERR(plat_dat)) - return PTR_ERR(plat_dat); - gmac = devm_kzalloc(dev, sizeof(*gmac), GFP_KERNEL); if (!gmac) return -ENOMEM; @@ -1201,11 +1197,15 @@ static int sun8i_dwmac_probe(struct platform_device *pdev) ret = of_get_phy_mode(dev->of_node, &interface); if (ret) return -EINVAL; - plat_dat->interface = interface; + + plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); /* platform data specifying hardware features and callbacks. * hardware features were copied from Allwinner drivers. */ + plat_dat->interface = interface; plat_dat->rx_coe = STMMAC_RX_COE_TYPE2; plat_dat->tx_coe = 1; plat_dat->has_sun8i = true; @@ -1216,7 +1216,7 @@ static int sun8i_dwmac_probe(struct platform_device *pdev) ret = sun8i_dwmac_init(pdev, plat_dat->bsp_priv); if (ret) - return ret; + goto dwmac_deconfig; ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); if (ret) @@ -1230,7 +1230,7 @@ static int sun8i_dwmac_probe(struct platform_device *pdev) if (gmac->variant->soc_has_internal_phy) { ret = get_ephy_nodes(priv); if (ret) - goto dwmac_exit; + goto dwmac_remove; ret = sun8i_dwmac_register_mdio_mux(priv); if (ret) { dev_err(&pdev->dev, "Failed to register mux\n"); @@ -1239,15 +1239,20 @@ static int sun8i_dwmac_probe(struct platform_device *pdev) } else { ret = sun8i_dwmac_reset(priv); if (ret) - goto dwmac_exit; + goto dwmac_remove; } return ret; dwmac_mux: sun8i_dwmac_unset_syscon(gmac); +dwmac_remove: + stmmac_dvr_remove(&pdev->dev); dwmac_exit: - stmmac_pltfr_remove(pdev); -return ret; + sun8i_dwmac_exit(pdev, gmac); +dwmac_deconfig: + stmmac_remove_config_dt(pdev, plat_dat); + + return ret; } static const struct of_device_id sun8i_dwmac_match[] = { -- cgit v1.2.3 From 529254216773acd5039c07aa18cf06fd1f9fccdd Mon Sep 17 00:00:00 2001 From: Samuel Holland Date: Sun, 3 Jan 2021 05:17:42 -0600 Subject: net: stmmac: dwmac-sun8i: Balance internal PHY resource references While stmmac_pltfr_remove calls sun8i_dwmac_exit, the sun8i_dwmac_init and sun8i_dwmac_exit functions are also called by the stmmac_platform suspend/resume callbacks. They may be called many times during the device's lifetime and should not release resources used by the driver. Furthermore, there was no error handling in case registering the MDIO mux failed during probe, and the EPHY clock was never released at all. Fix all of these issues by moving the deinitialization code to a driver removal callback. Also ensure the EPHY is powered down before removal. Fixes: 634db83b8265 ("net: stmmac: dwmac-sun8i: Handle integrated/external MDIOs") Signed-off-by: Samuel Holland Reviewed-by: Chen-Yu Tsai Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 27 ++++++++++++++++++----- 1 file changed, 21 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c index b20f261fce5b..a05dee5d4584 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c @@ -1004,17 +1004,12 @@ static void sun8i_dwmac_exit(struct platform_device *pdev, void *priv) struct sunxi_priv_data *gmac = priv; if (gmac->variant->soc_has_internal_phy) { - /* sun8i_dwmac_exit could be called with mdiomux uninit */ - if (gmac->mux_handle) - mdio_mux_uninit(gmac->mux_handle); if (gmac->internal_phy_powered) sun8i_dwmac_unpower_internal_phy(gmac); } sun8i_dwmac_unset_syscon(gmac); - reset_control_put(gmac->rst_ephy); - clk_disable_unprepare(gmac->tx_clk); if (gmac->regulator) @@ -1244,6 +1239,8 @@ static int sun8i_dwmac_probe(struct platform_device *pdev) return ret; dwmac_mux: + reset_control_put(gmac->rst_ephy); + clk_put(gmac->ephy_clk); sun8i_dwmac_unset_syscon(gmac); dwmac_remove: stmmac_dvr_remove(&pdev->dev); @@ -1255,6 +1252,24 @@ dwmac_deconfig: return ret; } +static int sun8i_dwmac_remove(struct platform_device *pdev) +{ + struct net_device *ndev = platform_get_drvdata(pdev); + struct stmmac_priv *priv = netdev_priv(ndev); + struct sunxi_priv_data *gmac = priv->plat->bsp_priv; + + if (gmac->variant->soc_has_internal_phy) { + mdio_mux_uninit(gmac->mux_handle); + sun8i_dwmac_unpower_internal_phy(gmac); + reset_control_put(gmac->rst_ephy); + clk_put(gmac->ephy_clk); + } + + stmmac_pltfr_remove(pdev); + + return 0; +} + static const struct of_device_id sun8i_dwmac_match[] = { { .compatible = "allwinner,sun8i-h3-emac", .data = &emac_variant_h3 }, @@ -1274,7 +1289,7 @@ MODULE_DEVICE_TABLE(of, sun8i_dwmac_match); static struct platform_driver sun8i_dwmac_driver = { .probe = sun8i_dwmac_probe, - .remove = stmmac_pltfr_remove, + .remove = sun8i_dwmac_remove, .driver = { .name = "dwmac-sun8i", .pm = &stmmac_pltfr_pm_ops, -- cgit v1.2.3 From b8239638853e3e37b287e4bd4d57b41f14c78550 Mon Sep 17 00:00:00 2001 From: Samuel Holland Date: Sun, 3 Jan 2021 05:17:43 -0600 Subject: net: stmmac: dwmac-sun8i: Balance internal PHY power sun8i_dwmac_exit calls sun8i_dwmac_unpower_internal_phy, but sun8i_dwmac_init did not call sun8i_dwmac_power_internal_phy. This caused PHY power to remain off after a suspend/resume cycle. Fix this by recording if PHY power should be restored, and if so, restoring it. Fixes: 634db83b8265 ("net: stmmac: dwmac-sun8i: Handle integrated/external MDIOs") Signed-off-by: Samuel Holland Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 31 +++++++++++++++++------ 1 file changed, 23 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c index a05dee5d4584..e2c25c1c702a 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c @@ -64,6 +64,7 @@ struct emac_variant { * @variant: reference to the current board variant * @regmap: regmap for using the syscon * @internal_phy_powered: Does the internal PHY is enabled + * @use_internal_phy: Is the internal PHY selected for use * @mux_handle: Internal pointer used by mdio-mux lib */ struct sunxi_priv_data { @@ -74,6 +75,7 @@ struct sunxi_priv_data { const struct emac_variant *variant; struct regmap_field *regmap_field; bool internal_phy_powered; + bool use_internal_phy; void *mux_handle; }; @@ -539,8 +541,11 @@ static const struct stmmac_dma_ops sun8i_dwmac_dma_ops = { .dma_interrupt = sun8i_dwmac_dma_interrupt, }; +static int sun8i_dwmac_power_internal_phy(struct stmmac_priv *priv); + static int sun8i_dwmac_init(struct platform_device *pdev, void *priv) { + struct net_device *ndev = platform_get_drvdata(pdev); struct sunxi_priv_data *gmac = priv; int ret; @@ -554,13 +559,25 @@ static int sun8i_dwmac_init(struct platform_device *pdev, void *priv) ret = clk_prepare_enable(gmac->tx_clk); if (ret) { - if (gmac->regulator) - regulator_disable(gmac->regulator); dev_err(&pdev->dev, "Could not enable AHB clock\n"); - return ret; + goto err_disable_regulator; + } + + if (gmac->use_internal_phy) { + ret = sun8i_dwmac_power_internal_phy(netdev_priv(ndev)); + if (ret) + goto err_disable_clk; } return 0; + +err_disable_clk: + clk_disable_unprepare(gmac->tx_clk); +err_disable_regulator: + if (gmac->regulator) + regulator_disable(gmac->regulator); + + return ret; } static void sun8i_dwmac_core_init(struct mac_device_info *hw, @@ -831,7 +848,6 @@ static int mdio_mux_syscon_switch_fn(int current_child, int desired_child, struct sunxi_priv_data *gmac = priv->plat->bsp_priv; u32 reg, val; int ret = 0; - bool need_power_ephy = false; if (current_child ^ desired_child) { regmap_field_read(gmac->regmap_field, ®); @@ -839,13 +855,12 @@ static int mdio_mux_syscon_switch_fn(int current_child, int desired_child, case DWMAC_SUN8I_MDIO_MUX_INTERNAL_ID: dev_info(priv->device, "Switch mux to internal PHY"); val = (reg & ~H3_EPHY_MUX_MASK) | H3_EPHY_SELECT; - - need_power_ephy = true; + gmac->use_internal_phy = true; break; case DWMAC_SUN8I_MDIO_MUX_EXTERNAL_ID: dev_info(priv->device, "Switch mux to external PHY"); val = (reg & ~H3_EPHY_MUX_MASK) | H3_EPHY_SHUTDOWN; - need_power_ephy = false; + gmac->use_internal_phy = false; break; default: dev_err(priv->device, "Invalid child ID %x\n", @@ -853,7 +868,7 @@ static int mdio_mux_syscon_switch_fn(int current_child, int desired_child, return -EINVAL; } regmap_field_write(gmac->regmap_field, val); - if (need_power_ephy) { + if (gmac->use_internal_phy) { ret = sun8i_dwmac_power_internal_phy(priv); if (ret) return ret; -- cgit v1.2.3 From 9b1e39cf5dd81f33186cdb950fcf75a121f1a9a7 Mon Sep 17 00:00:00 2001 From: Samuel Holland Date: Sun, 3 Jan 2021 05:17:44 -0600 Subject: net: stmmac: dwmac-sun8i: Balance syscon (de)initialization Previously, sun8i_dwmac_set_syscon was called from a chain of functions in several different files: sun8i_dwmac_probe stmmac_dvr_probe stmmac_hw_init stmmac_hwif_init sun8i_dwmac_setup sun8i_dwmac_set_syscon which made the lifetime of the syscon values hard to reason about. Part of the problem is that there is no similar platform driver callback from stmmac_dvr_remove. As a result, the driver unset the syscon value in sun8i_dwmac_exit, but this leaves it uninitialized after a suspend/ resume cycle. It was also unset a second time (outside sun8i_dwmac_exit) in the probe error path. Move the init to the earliest available place in sun8i_dwmac_probe (after stmmac_probe_config_dt, which initializes plat_dat), and the deinit to the corresponding position in the cleanup order. Since priv is not filled in until stmmac_dvr_probe, this requires changing the sun8i_dwmac_set_syscon parameters to priv's two relevant members. Fixes: 9f93ac8d4085 ("net-next: stmmac: Add dwmac-sun8i") Fixes: 634db83b8265 ("net: stmmac: dwmac-sun8i: Handle integrated/external MDIOs") Signed-off-by: Samuel Holland Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 50 +++++++++++------------ 1 file changed, 25 insertions(+), 25 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c index e2c25c1c702a..a5e0eff4a387 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c @@ -898,22 +898,23 @@ static int sun8i_dwmac_register_mdio_mux(struct stmmac_priv *priv) return ret; } -static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv) +static int sun8i_dwmac_set_syscon(struct device *dev, + struct plat_stmmacenet_data *plat) { - struct sunxi_priv_data *gmac = priv->plat->bsp_priv; - struct device_node *node = priv->device->of_node; + struct sunxi_priv_data *gmac = plat->bsp_priv; + struct device_node *node = dev->of_node; int ret; u32 reg, val; ret = regmap_field_read(gmac->regmap_field, &val); if (ret) { - dev_err(priv->device, "Fail to read from regmap field.\n"); + dev_err(dev, "Fail to read from regmap field.\n"); return ret; } reg = gmac->variant->default_syscon_value; if (reg != val) - dev_warn(priv->device, + dev_warn(dev, "Current syscon value is not the default %x (expect %x)\n", val, reg); @@ -926,9 +927,9 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv) /* Force EPHY xtal frequency to 24MHz. */ reg |= H3_EPHY_CLK_SEL; - ret = of_mdio_parse_addr(priv->device, priv->plat->phy_node); + ret = of_mdio_parse_addr(dev, plat->phy_node); if (ret < 0) { - dev_err(priv->device, "Could not parse MDIO addr\n"); + dev_err(dev, "Could not parse MDIO addr\n"); return ret; } /* of_mdio_parse_addr returns a valid (0 ~ 31) PHY @@ -944,17 +945,17 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv) if (!of_property_read_u32(node, "allwinner,tx-delay-ps", &val)) { if (val % 100) { - dev_err(priv->device, "tx-delay must be a multiple of 100\n"); + dev_err(dev, "tx-delay must be a multiple of 100\n"); return -EINVAL; } val /= 100; - dev_dbg(priv->device, "set tx-delay to %x\n", val); + dev_dbg(dev, "set tx-delay to %x\n", val); if (val <= gmac->variant->tx_delay_max) { reg &= ~(gmac->variant->tx_delay_max << SYSCON_ETXDC_SHIFT); reg |= (val << SYSCON_ETXDC_SHIFT); } else { - dev_err(priv->device, "Invalid TX clock delay: %d\n", + dev_err(dev, "Invalid TX clock delay: %d\n", val); return -EINVAL; } @@ -962,17 +963,17 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv) if (!of_property_read_u32(node, "allwinner,rx-delay-ps", &val)) { if (val % 100) { - dev_err(priv->device, "rx-delay must be a multiple of 100\n"); + dev_err(dev, "rx-delay must be a multiple of 100\n"); return -EINVAL; } val /= 100; - dev_dbg(priv->device, "set rx-delay to %x\n", val); + dev_dbg(dev, "set rx-delay to %x\n", val); if (val <= gmac->variant->rx_delay_max) { reg &= ~(gmac->variant->rx_delay_max << SYSCON_ERXDC_SHIFT); reg |= (val << SYSCON_ERXDC_SHIFT); } else { - dev_err(priv->device, "Invalid RX clock delay: %d\n", + dev_err(dev, "Invalid RX clock delay: %d\n", val); return -EINVAL; } @@ -983,7 +984,7 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv) if (gmac->variant->support_rmii) reg &= ~SYSCON_RMII_EN; - switch (priv->plat->interface) { + switch (plat->interface) { case PHY_INTERFACE_MODE_MII: /* default */ break; @@ -997,8 +998,8 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv) reg |= SYSCON_RMII_EN | SYSCON_ETCS_EXT_GMII; break; default: - dev_err(priv->device, "Unsupported interface mode: %s", - phy_modes(priv->plat->interface)); + dev_err(dev, "Unsupported interface mode: %s", + phy_modes(plat->interface)); return -EINVAL; } @@ -1023,8 +1024,6 @@ static void sun8i_dwmac_exit(struct platform_device *pdev, void *priv) sun8i_dwmac_unpower_internal_phy(gmac); } - sun8i_dwmac_unset_syscon(gmac); - clk_disable_unprepare(gmac->tx_clk); if (gmac->regulator) @@ -1059,16 +1058,11 @@ static struct mac_device_info *sun8i_dwmac_setup(void *ppriv) { struct mac_device_info *mac; struct stmmac_priv *priv = ppriv; - int ret; mac = devm_kzalloc(priv->device, sizeof(*mac), GFP_KERNEL); if (!mac) return NULL; - ret = sun8i_dwmac_set_syscon(priv); - if (ret) - return NULL; - mac->pcsr = priv->ioaddr; mac->mac = &sun8i_dwmac_ops; mac->dma = &sun8i_dwmac_dma_ops; @@ -1224,10 +1218,14 @@ static int sun8i_dwmac_probe(struct platform_device *pdev) plat_dat->exit = sun8i_dwmac_exit; plat_dat->setup = sun8i_dwmac_setup; - ret = sun8i_dwmac_init(pdev, plat_dat->bsp_priv); + ret = sun8i_dwmac_set_syscon(&pdev->dev, plat_dat); if (ret) goto dwmac_deconfig; + ret = sun8i_dwmac_init(pdev, plat_dat->bsp_priv); + if (ret) + goto dwmac_syscon; + ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); if (ret) goto dwmac_exit; @@ -1256,11 +1254,12 @@ static int sun8i_dwmac_probe(struct platform_device *pdev) dwmac_mux: reset_control_put(gmac->rst_ephy); clk_put(gmac->ephy_clk); - sun8i_dwmac_unset_syscon(gmac); dwmac_remove: stmmac_dvr_remove(&pdev->dev); dwmac_exit: sun8i_dwmac_exit(pdev, gmac); +dwmac_syscon: + sun8i_dwmac_unset_syscon(gmac); dwmac_deconfig: stmmac_remove_config_dt(pdev, plat_dat); @@ -1281,6 +1280,7 @@ static int sun8i_dwmac_remove(struct platform_device *pdev) } stmmac_pltfr_remove(pdev); + sun8i_dwmac_unset_syscon(gmac); return 0; } -- cgit v1.2.3 From 9f9d41f03bb07069e6e83ff4720cfea74a63898d Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Mon, 4 Jan 2021 17:22:24 -0800 Subject: docs: net: fix documentation on .ndo_get_stats Fix calling context. Signed-off-by: Jakub Kicinski Reviewed-by: Vladimir Oltean Signed-off-by: David S. Miller --- Documentation/networking/netdevices.rst | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/networking/netdevices.rst b/Documentation/networking/netdevices.rst index 5a85fcc80c76..e65665c5ab50 100644 --- a/Documentation/networking/netdevices.rst +++ b/Documentation/networking/netdevices.rst @@ -64,8 +64,8 @@ ndo_do_ioctl: Context: process ndo_get_stats: - Synchronization: dev_base_lock rwlock. - Context: nominally process, but don't sleep inside an rwlock + Synchronization: rtnl_lock() semaphore, dev_base_lock rwlock, or RCU. + Context: atomic (can't sleep under rwlock or RCU) ndo_start_xmit: Synchronization: __netif_tx_lock spinlock. -- cgit v1.2.3 From f04bbcbf1e38d192e94bbfa126731a52332c40b1 Mon Sep 17 00:00:00 2001 From: Yonglong Liu Date: Tue, 5 Jan 2021 11:37:26 +0800 Subject: net: hns3: fix a phy loopback fail issue When phy driver does not implement the set_loopback interface, phy loopback test will return -EOPNOTSUPP, and the loopback test will fail. So when phy driver does not implement the set_loopback interface, don't do phy loopback test. Fixes: c9765a89d142 ("net: hns3: add phy selftest function") Signed-off-by: Yonglong Liu Signed-off-by: Huazhong Tan Signed-off-by: David S. Miller --- drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index e6f37f91c489..135bd0a0dcaf 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -752,7 +752,8 @@ static int hclge_get_sset_count(struct hnae3_handle *handle, int stringset) handle->flags |= HNAE3_SUPPORT_SERDES_SERIAL_LOOPBACK; handle->flags |= HNAE3_SUPPORT_SERDES_PARALLEL_LOOPBACK; - if (hdev->hw.mac.phydev) { + if (hdev->hw.mac.phydev && hdev->hw.mac.phydev->drv && + hdev->hw.mac.phydev->drv->set_loopback) { count += 1; handle->flags |= HNAE3_SUPPORT_PHY_LOOPBACK; } -- cgit v1.2.3 From 65e61e3c2a619c4d4b873885b2d5394025ed117b Mon Sep 17 00:00:00 2001 From: Yufeng Mo Date: Tue, 5 Jan 2021 11:37:27 +0800 Subject: net: hns3: fix the number of queues actually used by ARQ HCLGE_MBX_MAX_ARQ_MSG_NUM is used to apply memory for the number of queues used by ARQ(Asynchronous Receive Queue), so the head and tail pointers should also use this macro. Fixes: 07a0556a3a73 ("net: hns3: Changes to support ARQ(Asynchronous Receive Queue)") Signed-off-by: Yufeng Mo Signed-off-by: Huazhong Tan Signed-off-by: David S. Miller --- drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h b/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h index fb5e8842983c..33defa4c180a 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h +++ b/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h @@ -169,7 +169,7 @@ struct hclgevf_mbx_arq_ring { #define hclge_mbx_ring_ptr_move_crq(crq) \ (crq->next_to_use = (crq->next_to_use + 1) % crq->desc_num) #define hclge_mbx_tail_ptr_move_arq(arq) \ - (arq.tail = (arq.tail + 1) % HCLGE_MBX_MAX_ARQ_MSG_SIZE) + (arq.tail = (arq.tail + 1) % HCLGE_MBX_MAX_ARQ_MSG_NUM) #define hclge_mbx_head_ptr_move_arq(arq) \ - (arq.head = (arq.head + 1) % HCLGE_MBX_MAX_ARQ_MSG_SIZE) + (arq.head = (arq.head + 1) % HCLGE_MBX_MAX_ARQ_MSG_NUM) #endif -- cgit v1.2.3 From ab6e32d2913a594bc8f822ce4a75c400190b2ecc Mon Sep 17 00:00:00 2001 From: Jian Shen Date: Tue, 5 Jan 2021 11:37:28 +0800 Subject: net: hns3: fix incorrect handling of sctp6 rss tuple For DEVICE_VERSION_V2, the hardware only supports src-ip, dst-ip and verification-tag for rss tuple set of sctp6 packet. For DEVICE_VERSION_V3, the hardware supports src-port and dst-port as well. Currently, when user queries the sctp6 rss tuples info, some unsupported information will be showed on V2. So add a check for hardware version when initializing and queries sctp6 rss tuple to fix this issue. Fixes: 46a3df9f9718 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support") Signed-off-by: Jian Shen Signed-off-by: Huazhong Tan Signed-off-by: David S. Miller --- drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 6 ++++-- drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 2 ++ drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 9 ++++++--- drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h | 2 ++ 4 files changed, 14 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index 135bd0a0dcaf..c242883fea5d 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -4538,8 +4538,8 @@ static int hclge_set_rss_tuple(struct hnae3_handle *handle, req->ipv4_sctp_en = tuple_sets; break; case SCTP_V6_FLOW: - if ((nfc->data & RXH_L4_B_0_1) || - (nfc->data & RXH_L4_B_2_3)) + if (hdev->ae_dev->dev_version <= HNAE3_DEVICE_VERSION_V2 && + (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3))) return -EINVAL; req->ipv6_sctp_en = tuple_sets; @@ -4731,6 +4731,8 @@ static void hclge_rss_init_cfg(struct hclge_dev *hdev) vport[i].rss_tuple_sets.ipv6_udp_en = HCLGE_RSS_INPUT_TUPLE_OTHER; vport[i].rss_tuple_sets.ipv6_sctp_en = + hdev->ae_dev->dev_version <= HNAE3_DEVICE_VERSION_V2 ? + HCLGE_RSS_INPUT_TUPLE_SCTP_NO_PORT : HCLGE_RSS_INPUT_TUPLE_SCTP; vport[i].rss_tuple_sets.ipv6_fragment_en = HCLGE_RSS_INPUT_TUPLE_OTHER; diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h index 50a294dfaff5..ca46bc9110d7 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h @@ -107,6 +107,8 @@ #define HCLGE_D_IP_BIT BIT(2) #define HCLGE_S_IP_BIT BIT(3) #define HCLGE_V_TAG_BIT BIT(4) +#define HCLGE_RSS_INPUT_TUPLE_SCTP_NO_PORT \ + (HCLGE_D_IP_BIT | HCLGE_S_IP_BIT | HCLGE_V_TAG_BIT) #define HCLGE_RSS_TC_SIZE_0 1 #define HCLGE_RSS_TC_SIZE_1 2 diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c index 145757cb70f9..674b3a22e91f 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c @@ -917,8 +917,8 @@ static int hclgevf_set_rss_tuple(struct hnae3_handle *handle, req->ipv4_sctp_en = tuple_sets; break; case SCTP_V6_FLOW: - if ((nfc->data & RXH_L4_B_0_1) || - (nfc->data & RXH_L4_B_2_3)) + if (hdev->ae_dev->dev_version <= HNAE3_DEVICE_VERSION_V2 && + (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3))) return -EINVAL; req->ipv6_sctp_en = tuple_sets; @@ -2502,7 +2502,10 @@ static void hclgevf_rss_init_cfg(struct hclgevf_dev *hdev) tuple_sets->ipv4_fragment_en = HCLGEVF_RSS_INPUT_TUPLE_OTHER; tuple_sets->ipv6_tcp_en = HCLGEVF_RSS_INPUT_TUPLE_OTHER; tuple_sets->ipv6_udp_en = HCLGEVF_RSS_INPUT_TUPLE_OTHER; - tuple_sets->ipv6_sctp_en = HCLGEVF_RSS_INPUT_TUPLE_SCTP; + tuple_sets->ipv6_sctp_en = + hdev->ae_dev->dev_version <= HNAE3_DEVICE_VERSION_V2 ? + HCLGEVF_RSS_INPUT_TUPLE_SCTP_NO_PORT : + HCLGEVF_RSS_INPUT_TUPLE_SCTP; tuple_sets->ipv6_fragment_en = HCLGEVF_RSS_INPUT_TUPLE_OTHER; } diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h index 1b183bc35604..f6d817a3edcb 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h @@ -122,6 +122,8 @@ #define HCLGEVF_D_IP_BIT BIT(2) #define HCLGEVF_S_IP_BIT BIT(3) #define HCLGEVF_V_TAG_BIT BIT(4) +#define HCLGEVF_RSS_INPUT_TUPLE_SCTP_NO_PORT \ + (HCLGEVF_D_IP_BIT | HCLGEVF_S_IP_BIT | HCLGEVF_V_TAG_BIT) #define HCLGEVF_STATS_TIMER_INTERVAL 36U -- cgit v1.2.3 From 7a68d725e4ea384977445e0bcaed3d7de83ab5b3 Mon Sep 17 00:00:00 2001 From: "Jouni K. Seppänen" Date: Tue, 5 Jan 2021 06:52:49 +0200 Subject: net: cdc_ncm: correct overhead in delayed_ndp_size MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Aligning to tx_ndp_modulus is not sufficient because the next align call can be cdc_ncm_align_tail, which can add up to ctx->tx_modulus + ctx->tx_remainder - 1 bytes. This used to lead to occasional crashes on a Huawei 909s-120 LTE module as follows: - the condition marked /* if there is a remaining skb [...] */ is true so the swaps happen - skb_out is set from ctx->tx_curr_skb - skb_out->len is exactly 0x3f52 - ctx->tx_curr_size is 0x4000 and delayed_ndp_size is 0xac (note that the sum of skb_out->len and delayed_ndp_size is 0x3ffe) - the for loop over n is executed once - the cdc_ncm_align_tail call marked /* align beginning of next frame */ increases skb_out->len to 0x3f56 (the sum is now 0x4002) - the condition marked /* check if we had enough room left [...] */ is false so we break out of the loop - the condition marked /* If requested, put NDP at end of frame. */ is true so the NDP is written into skb_out - now skb_out->len is 0x4002, so padding_count is minus two interpreted as an unsigned number, which is used as the length argument to memset, leading to a crash with various symptoms but usually including > Call Trace: > > cdc_ncm_fill_tx_frame+0x83a/0x970 [cdc_ncm] > cdc_mbim_tx_fixup+0x1d9/0x240 [cdc_mbim] > usbnet_start_xmit+0x5d/0x720 [usbnet] The cdc_ncm_align_tail call first aligns on a ctx->tx_modulus boundary (adding at most ctx->tx_modulus-1 bytes), then adds ctx->tx_remainder bytes. Alternatively, the next alignment call can occur in cdc_ncm_ndp16 or cdc_ncm_ndp32, in which case at most ctx->tx_ndp_modulus-1 bytes are added. A similar problem has occurred before, and the code is nontrivial to reason about, so add a guard before the crashing call. By that time it is too late to prevent any memory corruption (we'll have written past the end of the buffer already) but we can at least try to get a warning written into an on-disk log by avoiding the hard crash caused by padding past the buffer with a huge number of zeros. Signed-off-by: Jouni K. Seppänen Fixes: 4a0e3e989d66 ("cdc_ncm: Add support for moving NDP to end of NCM frame") Link: https://bugzilla.kernel.org/show_bug.cgi?id=209407 Reported-by: kernel test robot Reviewed-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/cdc_ncm.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 3b816a4731f2..5a78848db93f 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -1199,7 +1199,10 @@ cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign) * accordingly. Otherwise, we should check here. */ if (ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END) - delayed_ndp_size = ALIGN(ctx->max_ndp_size, ctx->tx_ndp_modulus); + delayed_ndp_size = ctx->max_ndp_size + + max_t(u32, + ctx->tx_ndp_modulus, + ctx->tx_modulus + ctx->tx_remainder) - 1; else delayed_ndp_size = 0; @@ -1410,7 +1413,8 @@ cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign) if (!(dev->driver_info->flags & FLAG_SEND_ZLP) && skb_out->len > ctx->min_tx_pkt) { padding_count = ctx->tx_curr_size - skb_out->len; - skb_put_zero(skb_out, padding_count); + if (!WARN_ON(padding_count > ctx->tx_curr_size)) + skb_put_zero(skb_out, padding_count); } else if (skb_out->len < ctx->tx_curr_size && (skb_out->len % dev->maxpacket) == 0) { skb_put_u8(skb_out, 0); /* force short packet */ -- cgit v1.2.3 From 4beb17e553b49c3dd74505c9f361e756aaae653e Mon Sep 17 00:00:00 2001 From: Qinglang Miao Date: Tue, 5 Jan 2021 13:57:54 +0800 Subject: net: qrtr: fix null-ptr-deref in qrtr_ns_remove A null-ptr-deref bug is reported by Hulk Robot like this: -------------- KASAN: null-ptr-deref in range [0x0000000000000128-0x000000000000012f] Call Trace: qrtr_ns_remove+0x22/0x40 [ns] qrtr_proto_fini+0xa/0x31 [qrtr] __x64_sys_delete_module+0x337/0x4e0 do_syscall_64+0x34/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x468ded -------------- When qrtr_ns_init fails in qrtr_proto_init, qrtr_ns_remove which would be called later on would raise a null-ptr-deref because qrtr_ns.workqueue has been destroyed. Fix it by making qrtr_ns_init have a return value and adding a check in qrtr_proto_init. Reported-by: Hulk Robot Signed-off-by: Qinglang Miao Signed-off-by: David S. Miller --- net/qrtr/ns.c | 7 ++++--- net/qrtr/qrtr.c | 16 +++++++++++----- net/qrtr/qrtr.h | 2 +- 3 files changed, 16 insertions(+), 9 deletions(-) diff --git a/net/qrtr/ns.c b/net/qrtr/ns.c index 56aaf8cb6527..8d00dfe8139e 100644 --- a/net/qrtr/ns.c +++ b/net/qrtr/ns.c @@ -755,7 +755,7 @@ static void qrtr_ns_data_ready(struct sock *sk) queue_work(qrtr_ns.workqueue, &qrtr_ns.work); } -void qrtr_ns_init(void) +int qrtr_ns_init(void) { struct sockaddr_qrtr sq; int ret; @@ -766,7 +766,7 @@ void qrtr_ns_init(void) ret = sock_create_kern(&init_net, AF_QIPCRTR, SOCK_DGRAM, PF_QIPCRTR, &qrtr_ns.sock); if (ret < 0) - return; + return ret; ret = kernel_getsockname(qrtr_ns.sock, (struct sockaddr *)&sq); if (ret < 0) { @@ -797,12 +797,13 @@ void qrtr_ns_init(void) if (ret < 0) goto err_wq; - return; + return 0; err_wq: destroy_workqueue(qrtr_ns.workqueue); err_sock: sock_release(qrtr_ns.sock); + return ret; } EXPORT_SYMBOL_GPL(qrtr_ns_init); diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c index f4ab3ca6d73b..b34358282f37 100644 --- a/net/qrtr/qrtr.c +++ b/net/qrtr/qrtr.c @@ -1287,13 +1287,19 @@ static int __init qrtr_proto_init(void) return rc; rc = sock_register(&qrtr_family); - if (rc) { - proto_unregister(&qrtr_proto); - return rc; - } + if (rc) + goto err_proto; - qrtr_ns_init(); + rc = qrtr_ns_init(); + if (rc) + goto err_sock; + return 0; + +err_sock: + sock_unregister(qrtr_family.family); +err_proto: + proto_unregister(&qrtr_proto); return rc; } postcore_initcall(qrtr_proto_init); diff --git a/net/qrtr/qrtr.h b/net/qrtr/qrtr.h index dc2b67f17927..3f2d28696062 100644 --- a/net/qrtr/qrtr.h +++ b/net/qrtr/qrtr.h @@ -29,7 +29,7 @@ void qrtr_endpoint_unregister(struct qrtr_endpoint *ep); int qrtr_endpoint_post(struct qrtr_endpoint *ep, const void *data, size_t len); -void qrtr_ns_init(void); +int qrtr_ns_init(void); void qrtr_ns_remove(void); -- cgit v1.2.3 From 445c6198fe7be03b7d38e66fe8d4b3187bc251d4 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Tue, 5 Jan 2021 20:15:15 +1100 Subject: net: ethernet: fs_enet: Add missing MODULE_LICENSE Since commit 1d6cd3929360 ("modpost: turn missing MODULE_LICENSE() into error") the ppc32_allmodconfig build fails with: ERROR: modpost: missing MODULE_LICENSE() in drivers/net/ethernet/freescale/fs_enet/mii-fec.o ERROR: modpost: missing MODULE_LICENSE() in drivers/net/ethernet/freescale/fs_enet/mii-bitbang.o Add the missing MODULE_LICENSEs to fix the build. Both files include a copyright header indicating they are GPL v2. Signed-off-by: Michael Ellerman Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c | 1 + drivers/net/ethernet/freescale/fs_enet/mii-fec.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c b/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c index c8e5d889bd81..21de56345503 100644 --- a/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c +++ b/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c @@ -223,3 +223,4 @@ static struct platform_driver fs_enet_bb_mdio_driver = { }; module_platform_driver(fs_enet_bb_mdio_driver); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/ethernet/freescale/fs_enet/mii-fec.c b/drivers/net/ethernet/freescale/fs_enet/mii-fec.c index 8b51ee142fa3..152f4d83765a 100644 --- a/drivers/net/ethernet/freescale/fs_enet/mii-fec.c +++ b/drivers/net/ethernet/freescale/fs_enet/mii-fec.c @@ -224,3 +224,4 @@ static struct platform_driver fs_enet_fec_mdio_driver = { }; module_platform_driver(fs_enet_fec_mdio_driver); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 3503ee6c0bec5f173d606359e6384a5ef85492fb Mon Sep 17 00:00:00 2001 From: Po-Hsu Lin Date: Tue, 5 Jan 2021 18:17:40 +0800 Subject: selftests: fix the return value for UDP GRO test The udpgro.sh will always return 0 (unless the bpf selftest was not build first) even if there are some failed sub test-cases. Therefore the kselftest framework will report this case is OK. Check and return the exit status of each test to make it easier to spot real failures. Signed-off-by: Po-Hsu Lin Signed-off-by: David S. Miller --- tools/testing/selftests/net/udpgro.sh | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/tools/testing/selftests/net/udpgro.sh b/tools/testing/selftests/net/udpgro.sh index ac2a30be9b32..f8a19f548ae9 100755 --- a/tools/testing/selftests/net/udpgro.sh +++ b/tools/testing/selftests/net/udpgro.sh @@ -5,6 +5,14 @@ readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)" +# set global exit status, but never reset nonzero one. +check_err() +{ + if [ $ret -eq 0 ]; then + ret=$1 + fi +} + cleanup() { local -r jobs="$(jobs -p)" local -r ns="$(ip netns list|grep $PEER_NS)" @@ -44,7 +52,9 @@ run_one() { # Hack: let bg programs complete the startup sleep 0.1 ./udpgso_bench_tx ${tx_args} + ret=$? wait $(jobs -p) + return $ret } run_test() { @@ -87,8 +97,10 @@ run_one_nat() { sleep 0.1 ./udpgso_bench_tx ${tx_args} + ret=$? kill -INT $pid wait $(jobs -p) + return $ret } run_one_2sock() { @@ -110,7 +122,9 @@ run_one_2sock() { sleep 0.1 # first UDP GSO socket should be closed at this point ./udpgso_bench_tx ${tx_args} + ret=$? wait $(jobs -p) + return $ret } run_nat_test() { @@ -131,36 +145,54 @@ run_all() { local -r core_args="-l 4" local -r ipv4_args="${core_args} -4 -D 192.168.1.1" local -r ipv6_args="${core_args} -6 -D 2001:db8::1" + ret=0 echo "ipv4" run_test "no GRO" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400" + check_err $? # explicitly check we are not receiving UDP_SEGMENT cmsg (-S -1) # when GRO does not take place run_test "no GRO chk cmsg" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400 -S -1" + check_err $? # the GSO packets are aggregated because: # * veth schedule napi after each xmit # * segmentation happens in BH context, veth napi poll is delayed after # the transmission of the last segment run_test "GRO" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720" + check_err $? run_test "GRO chk cmsg" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472" + check_err $? run_test "GRO with custom segment size" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720" + check_err $? run_test "GRO with custom segment size cmsg" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720 -S 500" + check_err $? run_nat_test "bad GRO lookup" "${ipv4_args} -M 1 -s 14720 -S 0" "-n 10 -l 1472" + check_err $? run_2sock_test "multiple GRO socks" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472" + check_err $? echo "ipv6" run_test "no GRO" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400" + check_err $? run_test "no GRO chk cmsg" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400 -S -1" + check_err $? run_test "GRO" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520" + check_err $? run_test "GRO chk cmsg" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520 -S 1452" + check_err $? run_test "GRO with custom segment size" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520" + check_err $? run_test "GRO with custom segment size cmsg" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520 -S 500" + check_err $? run_nat_test "bad GRO lookup" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 10 -l 1452" + check_err $? run_2sock_test "multiple GRO socks" "${ipv6_args} -M 1 -s 14520 -S 0 " "-n 1 -l 14520 -S 1452" + check_err $? + return $ret } if [ ! -f ../bpf/xdp_dummy.o ]; then @@ -180,3 +212,5 @@ elif [[ $1 == "__subprocess_2sock" ]]; then shift run_one_2sock $@ fi + +exit $? -- cgit v1.2.3 From 67208692802ce3cacfa00fe586dc0cb1bef0a51c Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Wed, 6 Jan 2021 00:42:19 +0100 Subject: tools/resolve_btfids: Warn when having multiple IDs for single type The kernel image can contain multiple types (structs/unions) with the same name. This causes distinct type hierarchies in BTF data and makes resolve_btfids fail with error like: BTFIDS vmlinux FAILED unresolved symbol udp6_sock as reported by Qais Yousef [1]. This change adds warning when multiple types of the same name are detected: BTFIDS vmlinux WARN: multiple IDs found for 'file': 526, 113351 - using 526 WARN: multiple IDs found for 'sk_buff': 2744, 113958 - using 2744 We keep the lower ID for the given type instance and let the build continue. Also changing the 'nr' variable name to 'nr_types' to avoid confusion. [1] https://lore.kernel.org/lkml/20201229151352.6hzmjvu3qh6p2qgg@e107158-lin/ Signed-off-by: Jiri Olsa Signed-off-by: Alexei Starovoitov Acked-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20210105234219.970039-1-jolsa@kernel.org --- tools/bpf/resolve_btfids/main.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/tools/bpf/resolve_btfids/main.c b/tools/bpf/resolve_btfids/main.c index e3ea569ee125..7409d7860aa6 100644 --- a/tools/bpf/resolve_btfids/main.c +++ b/tools/bpf/resolve_btfids/main.c @@ -139,6 +139,8 @@ int eprintf(int level, int var, const char *fmt, ...) #define pr_debug2(fmt, ...) pr_debugN(2, pr_fmt(fmt), ##__VA_ARGS__) #define pr_err(fmt, ...) \ eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__) +#define pr_info(fmt, ...) \ + eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__) static bool is_btf_id(const char *name) { @@ -472,7 +474,7 @@ static int symbols_resolve(struct object *obj) int nr_funcs = obj->nr_funcs; int err, type_id; struct btf *btf; - __u32 nr; + __u32 nr_types; btf = btf__parse(obj->btf ?: obj->path, NULL); err = libbpf_get_error(btf); @@ -483,12 +485,12 @@ static int symbols_resolve(struct object *obj) } err = -1; - nr = btf__get_nr_types(btf); + nr_types = btf__get_nr_types(btf); /* * Iterate all the BTF types and search for collected symbol IDs. */ - for (type_id = 1; type_id <= nr; type_id++) { + for (type_id = 1; type_id <= nr_types; type_id++) { const struct btf_type *type; struct rb_root *root; struct btf_id *id; @@ -526,8 +528,13 @@ static int symbols_resolve(struct object *obj) id = btf_id__find(root, str); if (id) { - id->id = type_id; - (*nr)--; + if (id->id) { + pr_info("WARN: multiple IDs found for '%s': %d, %d - using %d\n", + str, id->id, type_id, id->id); + } else { + id->id = type_id; + (*nr)--; + } } } -- cgit v1.2.3 From 6f02b540d7597f357bc6ee711346761045d4e108 Mon Sep 17 00:00:00 2001 From: Alan Maguire Date: Wed, 6 Jan 2021 15:59:06 +0000 Subject: bpftool: Fix compilation failure for net.o with older glibc MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For older glibc ~2.17, #include'ing both linux/if.h and net/if.h fails due to complaints about redefinition of interface flags: CC net.o In file included from net.c:13:0: /usr/include/linux/if.h:71:2: error: redeclaration of enumerator ‘IFF_UP’ IFF_UP = 1<<0, /* sysfs */ ^ /usr/include/net/if.h:44:5: note: previous definition of ‘IFF_UP’ was here IFF_UP = 0x1, /* Interface is up. */ The issue was fixed in kernel headers in [1], but since compilation of net.c picks up system headers the problem can recur. Dropping #include resolves the issue and it is not needed for compilation anyhow. [1] https://lore.kernel.org/netdev/1461512707-23058-1-git-send-email-mikko.rapeli__34748.27880641$1462831734$gmane$org@iki.fi/ Fixes: f6f3bac08ff9 ("tools/bpf: bpftool: add net support") Signed-off-by: Alan Maguire Signed-off-by: Andrii Nakryiko Acked-by: Martin KaFai Lau Link: https://lore.kernel.org/bpf/1609948746-15369-1-git-send-email-alan.maguire@oracle.com --- tools/bpf/bpftool/net.c | 1 - 1 file changed, 1 deletion(-) diff --git a/tools/bpf/bpftool/net.c b/tools/bpf/bpftool/net.c index 3fae61ef6339..ff3aa0cf3997 100644 --- a/tools/bpf/bpftool/net.c +++ b/tools/bpf/bpftool/net.c @@ -11,7 +11,6 @@ #include #include #include -#include #include #include #include -- cgit v1.2.3 From 0d136f5cd9a7ba6ded7f8ff17e8b1ba680f37625 Mon Sep 17 00:00:00 2001 From: Marek Behún Date: Tue, 5 Jan 2021 18:23:33 +0100 Subject: net: mvneta: fix error message when MTU too large for XDP MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The error message says that "Jumbo frames are not supported on XDP", but the code checks for mtu > MVNETA_MAX_RX_BUF_SIZE, not mtu > 1500. Fix this error message. Signed-off-by: Marek Behún Fixes: 0db51da7a8e9 ("net: mvneta: add basic XDP support") Cc: Lorenzo Bianconi Cc: Thomas Petazzoni Link: https://lore.kernel.org/r/20210105172333.21613-1-kabel@kernel.org Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/marvell/mvneta.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 3369ec717a51..bc4d8d144401 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -4432,7 +4432,7 @@ static int mvneta_xdp_setup(struct net_device *dev, struct bpf_prog *prog, struct bpf_prog *old_prog; if (prog && dev->mtu > MVNETA_MAX_RX_BUF_SIZE) { - NL_SET_ERR_MSG_MOD(extack, "Jumbo frames not supported on XDP"); + NL_SET_ERR_MSG_MOD(extack, "MTU too large for XDP"); return -EOPNOTSUPP; } -- cgit v1.2.3 From 94bcfdbff0c210b17b27615f4952cc6ece7d5f5f Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Tue, 5 Jan 2021 11:07:25 -0800 Subject: net: bareudp: add missing error handling for bareudp_link_config() .dellink does not get called after .newlink fails, bareudp_newlink() must undo what bareudp_configure() has done if bareudp_link_config() fails. v2: call bareudp_dellink(), like bareudp_dev_create() does Fixes: 571912c69f0e ("net: UDP tunnel encapsulation module for tunnelling different protocols like MPLS, IP, NSH etc.") Link: https://lore.kernel.org/r/20210105190725.1736246-1-kuba@kernel.org Signed-off-by: Jakub Kicinski --- drivers/net/bareudp.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/drivers/net/bareudp.c b/drivers/net/bareudp.c index 708171c0d628..85de5f96c02b 100644 --- a/drivers/net/bareudp.c +++ b/drivers/net/bareudp.c @@ -645,11 +645,20 @@ static int bareudp_link_config(struct net_device *dev, return 0; } +static void bareudp_dellink(struct net_device *dev, struct list_head *head) +{ + struct bareudp_dev *bareudp = netdev_priv(dev); + + list_del(&bareudp->next); + unregister_netdevice_queue(dev, head); +} + static int bareudp_newlink(struct net *net, struct net_device *dev, struct nlattr *tb[], struct nlattr *data[], struct netlink_ext_ack *extack) { struct bareudp_conf conf; + LIST_HEAD(list_kill); int err; err = bareudp2info(data, &conf, extack); @@ -662,17 +671,14 @@ static int bareudp_newlink(struct net *net, struct net_device *dev, err = bareudp_link_config(dev, tb); if (err) - return err; + goto err_unconfig; return 0; -} - -static void bareudp_dellink(struct net_device *dev, struct list_head *head) -{ - struct bareudp_dev *bareudp = netdev_priv(dev); - list_del(&bareudp->next); - unregister_netdevice_queue(dev, head); +err_unconfig: + bareudp_dellink(dev, &list_kill); + unregister_netdevice_many(&list_kill); + return err; } static size_t bareudp_get_size(const struct net_device *dev) -- cgit v1.2.3 From 7f847db3040897f3ee25ce97265c545b5561f6c2 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 5 Jan 2021 18:18:15 -0800 Subject: net: dsa: fix led_classdev build errors Fix build errors when LEDS_CLASS=m and NET_DSA_HIRSCHMANN_HELLCREEK=y. This limits the latter to =m when LEDS_CLASS=m. microblaze-linux-ld: drivers/net/dsa/hirschmann/hellcreek_ptp.o: in function `hellcreek_ptp_setup': (.text+0xf80): undefined reference to `led_classdev_register_ext' microblaze-linux-ld: (.text+0xf94): undefined reference to `led_classdev_register_ext' microblaze-linux-ld: drivers/net/dsa/hirschmann/hellcreek_ptp.o: in function `hellcreek_ptp_free': (.text+0x1018): undefined reference to `led_classdev_unregister' microblaze-linux-ld: (.text+0x1024): undefined reference to `led_classdev_unregister' Signed-off-by: Randy Dunlap Reported-by: kernel test robot Link: lore.kernel.org/r/202101060655.iUvMJqS2-lkp@intel.com Cc: Kurt Kanzenbach Link: https://lore.kernel.org/r/20210106021815.31796-1-rdunlap@infradead.org Signed-off-by: Jakub Kicinski --- drivers/net/dsa/hirschmann/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/dsa/hirschmann/Kconfig b/drivers/net/dsa/hirschmann/Kconfig index 222dd35e2c9d..e01191107a4b 100644 --- a/drivers/net/dsa/hirschmann/Kconfig +++ b/drivers/net/dsa/hirschmann/Kconfig @@ -4,6 +4,7 @@ config NET_DSA_HIRSCHMANN_HELLCREEK depends on HAS_IOMEM depends on NET_DSA depends on PTP_1588_CLOCK + depends on LEDS_CLASS select NET_DSA_TAG_HELLCREEK help This driver adds support for Hirschmann Hellcreek TSN switches. -- cgit v1.2.3 From 1f685e6adbbe3c7b1bd9053be771b898d9efa655 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 5 Jan 2021 20:25:31 -0800 Subject: ptp: ptp_ines: prevent build when HAS_IOMEM is not set ptp_ines.c uses devm_platform_ioremap_resource(), which is only built/available when CONFIG_HAS_IOMEM is enabled. CONFIG_HAS_IOMEM is not enabled for arch/s390/, so builds on S390 have a build error: s390-linux-ld: drivers/ptp/ptp_ines.o: in function `ines_ptp_ctrl_probe': ptp_ines.c:(.text+0x17e6): undefined reference to `devm_platform_ioremap_resource' Prevent builds of ptp_ines.c when HAS_IOMEM is not set. Fixes: bad1eaa6ac31 ("ptp: Add a driver for InES time stamping IP core.") Signed-off-by: Randy Dunlap Reported-by: kernel test robot Link: lore.kernel.org/r/202101031125.ZEFCUiKi-lkp@intel.com Acked-by: Richard Cochran Link: https://lore.kernel.org/r/20210106042531.1351-1-rdunlap@infradead.org Signed-off-by: Jakub Kicinski --- drivers/ptp/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/ptp/Kconfig b/drivers/ptp/Kconfig index d2bf05ccbbe2..f2edef0df40f 100644 --- a/drivers/ptp/Kconfig +++ b/drivers/ptp/Kconfig @@ -79,6 +79,7 @@ config DP83640_PHY config PTP_1588_CLOCK_INES tristate "ZHAW InES PTP time stamping IP core" depends on NETWORK_PHY_TIMESTAMPING + depends on HAS_IOMEM depends on PHYLIB depends on PTP_1588_CLOCK help -- cgit v1.2.3 From c4aec381ab98c9189d47b935832541d520f1f67f Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Tue, 15 Dec 2020 11:32:37 +0100 Subject: can: m_can: m_can_class_unregister(): remove erroneous m_can_clk_stop() In m_can_class_register() the clock is started, but stopped on exit. When calling m_can_class_unregister(), the clock is stopped a second time. This patch removes the erroneous m_can_clk_stop() in m_can_class_unregister(). Fixes: f524f829b75a ("can: m_can: Create a m_can platform framework") Cc: Dan Murphy Cc: Sriram Dash Reviewed-by: Sean Nyekjaer Link: https://lore.kernel.org/r/20201215103238.524029-2-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde --- drivers/net/can/m_can/m_can.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index 2c9f12401276..da551fd0f502 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -1852,8 +1852,6 @@ EXPORT_SYMBOL_GPL(m_can_class_register); void m_can_class_unregister(struct m_can_classdev *cdev) { unregister_candev(cdev->net); - - m_can_clk_stop(cdev); } EXPORT_SYMBOL_GPL(m_can_class_unregister); -- cgit v1.2.3 From aee2b3ccc8a63d1cd7da6a8a153d1f3712d40826 Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Tue, 15 Dec 2020 11:32:38 +0100 Subject: can: tcan4x5x: fix bittiming const, use common bittiming from m_can driver According to the TCAN4550 datasheet "SLLSF91 - DECEMBER 2018" the tcan4x5x has the same bittiming constants as a m_can revision 3.2.x/3.3.0. The tcan4x5x chip I'm using identifies itself as m_can revision 3.2.1, so remove the tcan4x5x specific bittiming values and rely on the values in the m_can driver, which are selected according to core revision. Fixes: 5443c226ba91 ("can: tcan4x5x: Add tcan4x5x driver to the kernel") Cc: Dan Murphy Reviewed-by: Sean Nyekjaer Link: https://lore.kernel.org/r/20201215103238.524029-3-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde --- drivers/net/can/m_can/tcan4x5x.c | 26 -------------------------- 1 file changed, 26 deletions(-) diff --git a/drivers/net/can/m_can/tcan4x5x.c b/drivers/net/can/m_can/tcan4x5x.c index 24c737c4fc44..970f0e9d19bf 100644 --- a/drivers/net/can/m_can/tcan4x5x.c +++ b/drivers/net/can/m_can/tcan4x5x.c @@ -131,30 +131,6 @@ static inline struct tcan4x5x_priv *cdev_to_priv(struct m_can_classdev *cdev) } -static struct can_bittiming_const tcan4x5x_bittiming_const = { - .name = DEVICE_NAME, - .tseg1_min = 2, - .tseg1_max = 31, - .tseg2_min = 2, - .tseg2_max = 16, - .sjw_max = 16, - .brp_min = 1, - .brp_max = 32, - .brp_inc = 1, -}; - -static struct can_bittiming_const tcan4x5x_data_bittiming_const = { - .name = DEVICE_NAME, - .tseg1_min = 1, - .tseg1_max = 32, - .tseg2_min = 1, - .tseg2_max = 16, - .sjw_max = 16, - .brp_min = 1, - .brp_max = 32, - .brp_inc = 1, -}; - static void tcan4x5x_check_wake(struct tcan4x5x_priv *priv) { int wake_state = 0; @@ -469,8 +445,6 @@ static int tcan4x5x_can_probe(struct spi_device *spi) mcan_class->dev = &spi->dev; mcan_class->ops = &tcan4x5x_ops; mcan_class->is_peripheral = true; - mcan_class->bit_timing = &tcan4x5x_bittiming_const; - mcan_class->data_timing = &tcan4x5x_data_bittiming_const; mcan_class->net->irq = spi->irq; spi_set_drvdata(spi, priv); -- cgit v1.2.3 From 6086f02a18aeae795a61a3fc6566920891ea3b52 Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Tue, 5 Jan 2021 22:41:37 +0100 Subject: can: mcp251xfd: mcp251xfd_handle_tefif(): fix TEF vs. TX race condition The mcp251xfd driver uses a TX FIFO for sending CAN frames and a TX Event FIFO (TEF) for completed TX-requests. The TEF event handling in the mcp251xfd_handle_tefif() function has a race condition. It first increments the tx-ring's tail counter to signal that there's room in the TX and TEF FIFO, then it increments the TEF FIFO in hardware. A running mcp251xfd_start_xmit() on a different CPU might not stop the txqueue (as the tx-ring still shows free space). The next mcp251xfd_start_xmit() will push a message into the chip and the TX complete event might overflow the TEF FIFO. This patch changes the order to fix the problem. Fixes: 68c0c1c7f966 ("can: mcp251xfd: tef-path: reduce number of SPI core requests to set UINC bit") Link: https://lore.kernel.org/r/20210105214138.3150886-2-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde --- drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c index 77129d5f410b..85a1a8b7c0e7 100644 --- a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c +++ b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c @@ -1368,13 +1368,10 @@ static int mcp251xfd_handle_tefif(struct mcp251xfd_priv *priv) struct mcp251xfd_tx_ring *tx_ring = priv->tx; struct spi_transfer *last_xfer; - tx_ring->tail += len; - /* Increment the TEF FIFO tail pointer 'len' times in * a single SPI message. - */ - - /* Note: + * + * Note: * * "cs_change == 1" on the last transfer results in an * active chip select after the complete SPI @@ -1391,6 +1388,8 @@ static int mcp251xfd_handle_tefif(struct mcp251xfd_priv *priv) if (err) return err; + tx_ring->tail += len; + err = mcp251xfd_check_tef_tail(priv); if (err) return err; -- cgit v1.2.3 From 2fbb397f584077e3c90abd06829f5a1f66fdd5f4 Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Tue, 5 Jan 2021 22:41:38 +0100 Subject: can: mcp251xfd: mcp251xfd_handle_rxif_ring(): first increment RX tail pointer in HW, then in driver The previous patch fixes a TEF vs. TX race condition, by first updating the TEF tail pointer in hardware, and then updating the driver internal pointer. The same pattern exists in the RX-path, too. This should be no problem, as the driver accesses the RX-FIFO from the interrupt handler only, thus the access is properly serialized. Fix the order here, too, so that the TEF- and RX-path look similar. Fixes: 1f652bb6bae7 ("can: mcp25xxfd: rx-path: reduce number of SPI core requests to set UINC bit") Link: https://lore.kernel.org/r/20210105214138.3150886-3-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde --- drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c index 85a1a8b7c0e7..36235afb0bc6 100644 --- a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c +++ b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c @@ -1552,10 +1552,8 @@ mcp251xfd_handle_rxif_ring(struct mcp251xfd_priv *priv, /* Increment the RX FIFO tail pointer 'len' times in a * single SPI message. - */ - ring->tail += len; - - /* Note: + * + * Note: * * "cs_change == 1" on the last transfer results in an * active chip select after the complete SPI @@ -1571,6 +1569,8 @@ mcp251xfd_handle_rxif_ring(struct mcp251xfd_priv *priv, last_xfer->cs_change = 1; if (err) return err; + + ring->tail += len; } return 0; -- cgit v1.2.3 From 1169ec8f5d71044082a9898bbd1f1bf4a690c5a4 Mon Sep 17 00:00:00 2001 From: Lad Prabhakar Date: Mon, 4 Jan 2021 09:03:27 +0000 Subject: can: rcar: Kconfig: update help description for CAN_RCAR config The rcar_can driver also supports RZ/G SoC's, update the description to reflect this. Signed-off-by: Lad Prabhakar Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20210104090327.6547-1-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Marc Kleine-Budde --- drivers/net/can/rcar/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/can/rcar/Kconfig b/drivers/net/can/rcar/Kconfig index 8d36101b78e3..29cabc20109e 100644 --- a/drivers/net/can/rcar/Kconfig +++ b/drivers/net/can/rcar/Kconfig @@ -1,10 +1,10 @@ # SPDX-License-Identifier: GPL-2.0 config CAN_RCAR - tristate "Renesas R-Car CAN controller" + tristate "Renesas R-Car and RZ/G CAN controller" depends on ARCH_RENESAS || ARM help Say Y here if you want to use CAN controller found on Renesas R-Car - SoCs. + or RZ/G SoCs. To compile this driver as a module, choose M here: the module will be called rcar_can. -- cgit v1.2.3 From 6ee49118f87cf02b36f68812bc49855b7b627a2b Mon Sep 17 00:00:00 2001 From: Sriram Dash Date: Mon, 4 Jan 2021 18:01:34 +0530 Subject: MAINTAINERS: Update MCAN MMIO device driver maintainer Update Pankaj Sharma as maintainer for mcan mmio device driver as I will be moving to a different role. Signed-off-by: Sriram Dash Acked-by: Pankaj Sharma Link: https://lore.kernel.org/r/20210104123134.16930-1-sriram.dash@samsung.com Signed-off-by: Marc Kleine-Budde --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 7c1e45c416b1..b15514a770e3 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10847,7 +10847,7 @@ F: drivers/media/radio/radio-maxiradio* MCAN MMIO DEVICE DRIVER M: Dan Murphy -M: Sriram Dash +M: Pankaj Sharma L: linux-can@vger.kernel.org S: Maintained F: Documentation/devicetree/bindings/net/can/bosch,m_can.yaml -- cgit v1.2.3 From d8f5c29653c3f6995e8979be5623d263e92f6b86 Mon Sep 17 00:00:00 2001 From: Sean Tranchetti Date: Tue, 5 Jan 2021 16:22:25 -0800 Subject: net: ipv6: fib: flush exceptions when purging route Route removal is handled by two code paths. The main removal path is via fib6_del_route() which will handle purging any PMTU exceptions from the cache, removing all per-cpu copies of the DST entry used by the route, and releasing the fib6_info struct. The second removal location is during fib6_add_rt2node() during a route replacement operation. This path also calls fib6_purge_rt() to handle cleaning up the per-cpu copies of the DST entries and releasing the fib6_info associated with the older route, but it does not flush any PMTU exceptions that the older route had. Since the older route is removed from the tree during the replacement, we lose any way of accessing it again. As these lingering DSTs and the fib6_info struct are holding references to the underlying netdevice struct as well, unregistering that device from the kernel can never complete. Fixes: 2b760fcf5cfb3 ("ipv6: hook up exception table to store dst cache") Signed-off-by: Sean Tranchetti Reviewed-by: David Ahern Link: https://lore.kernel.org/r/1609892546-11389-1-git-send-email-stranche@quicinc.com Signed-off-by: Jakub Kicinski --- net/ipv6/ip6_fib.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 605cdd38a919..f43e27555725 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -1025,6 +1025,8 @@ static void fib6_purge_rt(struct fib6_info *rt, struct fib6_node *fn, { struct fib6_table *table = rt->fib6_table; + /* Flush all cached dst in exception table */ + rt6_flush_exceptions(rt); fib6_drop_pcpu_from(rt, table); if (rt->nh && !list_empty(&rt->nh_list)) @@ -1927,9 +1929,6 @@ static void fib6_del_route(struct fib6_table *table, struct fib6_node *fn, net->ipv6.rt6_stats->fib_rt_entries--; net->ipv6.rt6_stats->fib_discarded_routes++; - /* Flush all cached dst in exception table */ - rt6_flush_exceptions(rt); - /* Reset round-robin state, if necessary */ if (rcu_access_pointer(fn->rr_ptr) == rt) fn->rr_ptr = NULL; -- cgit v1.2.3 From 5316a7c0130acf09bfc8bb0092407006010fcccc Mon Sep 17 00:00:00 2001 From: Sean Tranchetti Date: Tue, 5 Jan 2021 16:22:26 -0800 Subject: tools: selftests: add test for changing routes with PTMU exceptions Adds new 2 new tests to the PTMU script: pmtu_ipv4/6_route_change. These tests explicitly test for a recently discovered problem in the IPv6 routing framework where PMTU exceptions were not properly released when replacing a route via "ip route change ...". After creating PMTU exceptions, the route from the device A to R1 will be replaced with a new route, then device A will be deleted. If the PMTU exceptions were properly cleaned up by the kernel, this device deletion will succeed. Otherwise, the unregistration of the device will stall, and messages such as the following will be logged in dmesg: unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 4 Signed-off-by: Sean Tranchetti Reviewed-by: David Ahern Link: https://lore.kernel.org/r/1609892546-11389-2-git-send-email-stranche@quicinc.com Signed-off-by: Jakub Kicinski --- tools/testing/selftests/net/pmtu.sh | 71 +++++++++++++++++++++++++++++++++++-- 1 file changed, 69 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh index 464e31eabc73..64cd2e23c568 100755 --- a/tools/testing/selftests/net/pmtu.sh +++ b/tools/testing/selftests/net/pmtu.sh @@ -162,7 +162,15 @@ # - list_flush_ipv6_exception # Using the same topology as in pmtu_ipv6, create exceptions, and check # they are shown when listing exception caches, gone after flushing them - +# +# - pmtu_ipv4_route_change +# Use the same topology as in pmtu_ipv4, but issue a route replacement +# command and delete the corresponding device afterward. This tests for +# proper cleanup of the PMTU exceptions by the route replacement path. +# Device unregistration should complete successfully +# +# - pmtu_ipv6_route_change +# Same as above but with IPv6 # Kselftest framework requirement - SKIP code is 4. ksft_skip=4 @@ -224,7 +232,9 @@ tests=" cleanup_ipv4_exception ipv4: cleanup of cached exceptions 1 cleanup_ipv6_exception ipv6: cleanup of cached exceptions 1 list_flush_ipv4_exception ipv4: list and flush cached exceptions 1 - list_flush_ipv6_exception ipv6: list and flush cached exceptions 1" + list_flush_ipv6_exception ipv6: list and flush cached exceptions 1 + pmtu_ipv4_route_change ipv4: PMTU exception w/route replace 1 + pmtu_ipv6_route_change ipv6: PMTU exception w/route replace 1" NS_A="ns-A" NS_B="ns-B" @@ -1782,6 +1792,63 @@ test_list_flush_ipv6_exception() { return ${fail} } +test_pmtu_ipvX_route_change() { + family=${1} + + setup namespaces routing || return 2 + trace "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \ + "${ns_r1}" veth_R1-B "${ns_b}" veth_B-R1 \ + "${ns_a}" veth_A-R2 "${ns_r2}" veth_R2-A \ + "${ns_r2}" veth_R2-B "${ns_b}" veth_B-R2 + + if [ ${family} -eq 4 ]; then + ping=ping + dst1="${prefix4}.${b_r1}.1" + dst2="${prefix4}.${b_r2}.1" + gw="${prefix4}.${a_r1}.2" + else + ping=${ping6} + dst1="${prefix6}:${b_r1}::1" + dst2="${prefix6}:${b_r2}::1" + gw="${prefix6}:${a_r1}::2" + fi + + # Set up initial MTU values + mtu "${ns_a}" veth_A-R1 2000 + mtu "${ns_r1}" veth_R1-A 2000 + mtu "${ns_r1}" veth_R1-B 1400 + mtu "${ns_b}" veth_B-R1 1400 + + mtu "${ns_a}" veth_A-R2 2000 + mtu "${ns_r2}" veth_R2-A 2000 + mtu "${ns_r2}" veth_R2-B 1500 + mtu "${ns_b}" veth_B-R2 1500 + + # Create route exceptions + run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s 1800 ${dst1} + run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s 1800 ${dst2} + + # Check that exceptions have been created with the correct PMTU + pmtu_1="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst1})" + check_pmtu_value "1400" "${pmtu_1}" "exceeding MTU" || return 1 + pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})" + check_pmtu_value "1500" "${pmtu_2}" "exceeding MTU" || return 1 + + # Replace the route from A to R1 + run_cmd ${ns_a} ip route change default via ${gw} + + # Delete the device in A + run_cmd ${ns_a} ip link del "veth_A-R1" +} + +test_pmtu_ipv4_route_change() { + test_pmtu_ipvX_route_change 4 +} + +test_pmtu_ipv6_route_change() { + test_pmtu_ipvX_route_change 6 +} + usage() { echo echo "$0 [OPTIONS] [TEST]..." -- cgit v1.2.3 From abf8ef953a43e74aac3c54a94975f21bd483199b Mon Sep 17 00:00:00 2001 From: Mark Zhang Date: Mon, 30 Nov 2020 04:38:11 +0200 Subject: net/mlx5: Check if lag is supported before creating one MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch fixes a memleak issue by preventing to create a lag and add PFs if lag is not supported. comm “python3”, pid 349349, jiffies 4296985507 (age 1446.976s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ……………. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ……………. backtrace: [<000000005b216ae7>] mlx5_lag_add+0x1d5/0×3f0 [mlx5_core] [<000000000445aa55>] mlx5e_nic_enable+0x66/0×1b0 [mlx5_core] [<00000000c56734c3>] mlx5e_attach_netdev+0x16e/0×200 [mlx5_core] [<0000000030439d1f>] mlx5e_attach+0x5c/0×90 [mlx5_core] [<0000000018fd8615>] mlx5e_add+0x1a4/0×410 [mlx5_core] [<0000000068bc504b>] mlx5_add_device+0x72/0×120 [mlx5_core] [<000000009fce51f9>] mlx5_register_device+0x77/0xb0 [mlx5_core] [<00000000d0d81ff3>] mlx5_load_one+0xc58/0×1eb0 [mlx5_core] [<0000000045077adc>] init_one+0x3ea/0×920 [mlx5_core] [<0000000043287674>] pci_device_probe+0xcd/0×150 [<00000000dafd3279>] really_probe+0x1c9/0×4b0 [<00000000f06bdd84>] driver_probe_device+0x5d/0×140 [<00000000e3d508b6>] device_driver_attach+0x4f/0×60 [<0000000084fba0f0>] bind_store+0xbf/0×120 [<00000000bf6622b3>] kernfs_fop_write+0x114/0×1b0 Fixes: 9b412cc35f00 ("net/mlx5e: Add LAG warning if bond slave is not lag master") Signed-off-by: Mark Zhang Reviewed-by: Leon Romanovsky Reviewed-by: Maor Gottlieb Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/lag.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag.c index f3d45ef082cd..83a05371e2aa 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c @@ -564,7 +564,9 @@ void mlx5_lag_add(struct mlx5_core_dev *dev, struct net_device *netdev) struct mlx5_core_dev *tmp_dev; int i, err; - if (!MLX5_CAP_GEN(dev, vport_group_manager)) + if (!MLX5_CAP_GEN(dev, vport_group_manager) || + !MLX5_CAP_GEN(dev, lag_master) || + MLX5_CAP_GEN(dev, num_lag_ports) != MLX5_MAX_PORTS) return; tmp_dev = mlx5_get_next_phys_dev(dev); @@ -582,12 +584,9 @@ void mlx5_lag_add(struct mlx5_core_dev *dev, struct net_device *netdev) if (mlx5_lag_dev_add_pf(ldev, dev, netdev) < 0) return; - for (i = 0; i < MLX5_MAX_PORTS; i++) { - tmp_dev = ldev->pf[i].dev; - if (!tmp_dev || !MLX5_CAP_GEN(tmp_dev, lag_master) || - MLX5_CAP_GEN(tmp_dev, num_lag_ports) != MLX5_MAX_PORTS) + for (i = 0; i < MLX5_MAX_PORTS; i++) + if (!ldev->pf[i].dev) break; - } if (i >= MLX5_MAX_PORTS) ldev->flags |= MLX5_LAG_FLAG_READY; -- cgit v1.2.3 From 9c9be85f6b59d80efe4705109c0396df18d4e11d Mon Sep 17 00:00:00 2001 From: Aya Levin Date: Tue, 24 Nov 2020 22:16:23 +0200 Subject: net/mlx5e: Add missing capability check for uplink follow Expose firmware indication that it supports setting eswitch uplink state to follow (follow the physical link). Condition setting the eswitch uplink admin-state with this capability bit. Older FW may not support the uplink state setting. Fixes: 7d0314b11cdd ("net/mlx5e: Modify uplink state on interface up/down") Signed-off-by: Aya Levin Reviewed-by: Moshe Shemesh Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 3 ++- include/linux/mlx5/mlx5_ifc.h | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 7a79d330c075..6a852b4901aa 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -3161,7 +3161,8 @@ static void mlx5e_modify_admin_state(struct mlx5_core_dev *mdev, mlx5_set_port_admin_status(mdev, state); - if (mlx5_eswitch_mode(mdev) != MLX5_ESWITCH_LEGACY) + if (mlx5_eswitch_mode(mdev) == MLX5_ESWITCH_OFFLOADS || + !MLX5_CAP_GEN(mdev, uplink_follow)) return; if (state == MLX5_PORT_UP) diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 8fbddec26eb8..442c0160caab 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -1280,7 +1280,8 @@ struct mlx5_ifc_cmd_hca_cap_bits { u8 ece_support[0x1]; u8 reserved_at_a4[0x7]; u8 log_max_srq[0x5]; - u8 reserved_at_b0[0x2]; + u8 reserved_at_b0[0x1]; + u8 uplink_follow[0x1]; u8 ts_cqe_to_dest_cqn[0x1]; u8 reserved_at_b3[0xd]; -- cgit v1.2.3 From 0f2dcade69f2af56b74bce432e48ff3957830ce2 Mon Sep 17 00:00:00 2001 From: Mark Zhang Date: Mon, 14 Dec 2020 03:38:40 +0200 Subject: net/mlx5: Use port_num 1 instead of 0 when delete a RoCE address In multi-port mode, FW reports syndrome 0x2ea48 (invalid vhca_port_number) if the port_num is not 1 or 2. Fixes: 80f09dfc237f ("net/mlx5: Eswitch, enable RoCE loopback traffic") Signed-off-by: Mark Zhang Reviewed-by: Maor Gottlieb Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/rdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/rdma.c b/drivers/net/ethernet/mellanox/mlx5/core/rdma.c index 0fc7de4aa572..8e0dddc6383f 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/rdma.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/rdma.c @@ -116,7 +116,7 @@ free: static void mlx5_rdma_del_roce_addr(struct mlx5_core_dev *dev) { mlx5_core_roce_gid_set(dev, 0, 0, 0, - NULL, NULL, false, 0, 0); + NULL, NULL, false, 0, 1); } static void mlx5_rdma_make_default_gid(struct mlx5_core_dev *dev, union ib_gid *gid) -- cgit v1.2.3 From eed38eeee734756596e2cc163bdc7dac3be501b1 Mon Sep 17 00:00:00 2001 From: Oz Shlomo Date: Mon, 7 Dec 2020 08:15:18 +0000 Subject: net/mlx5e: CT: Use per flow counter when CT flow accounting is enabled Connection counters may be shared for both directions when the counter is used for connection aging purposes. However, if TC flow accounting is enabled then a unique counter is required per direction. Instantiate a unique counter per direction if the conntrack accounting extension is enabled. Use a shared counter when the connection accounting extension is disabled. Fixes: 1edae2335adf ("net/mlx5e: CT: Use the same counter for both directions") Signed-off-by: Oz Shlomo Reported-by: Marcelo Ricardo Leitner Reviewed-by: Roi Dayan Reviewed-by: Paul Blakey Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c | 77 ++++++++++++++-------- 1 file changed, 49 insertions(+), 28 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c index e521254d886e..072363e73f1c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c @@ -118,16 +118,17 @@ struct mlx5_ct_tuple { u16 zone; }; -struct mlx5_ct_shared_counter { +struct mlx5_ct_counter { struct mlx5_fc *counter; refcount_t refcount; + bool is_shared; }; struct mlx5_ct_entry { struct rhash_head node; struct rhash_head tuple_node; struct rhash_head tuple_nat_node; - struct mlx5_ct_shared_counter *shared_counter; + struct mlx5_ct_counter *counter; unsigned long cookie; unsigned long restore_cookie; struct mlx5_ct_tuple tuple; @@ -394,13 +395,14 @@ mlx5_tc_ct_set_tuple_match(struct mlx5e_priv *priv, struct mlx5_flow_spec *spec, } static void -mlx5_tc_ct_shared_counter_put(struct mlx5_tc_ct_priv *ct_priv, struct mlx5_ct_entry *entry) +mlx5_tc_ct_counter_put(struct mlx5_tc_ct_priv *ct_priv, struct mlx5_ct_entry *entry) { - if (!refcount_dec_and_test(&entry->shared_counter->refcount)) + if (entry->counter->is_shared && + !refcount_dec_and_test(&entry->counter->refcount)) return; - mlx5_fc_destroy(ct_priv->dev, entry->shared_counter->counter); - kfree(entry->shared_counter); + mlx5_fc_destroy(ct_priv->dev, entry->counter->counter); + kfree(entry->counter); } static void @@ -699,7 +701,7 @@ mlx5_tc_ct_entry_add_rule(struct mlx5_tc_ct_priv *ct_priv, attr->dest_ft = ct_priv->post_ct; attr->ft = nat ? ct_priv->ct_nat : ct_priv->ct; attr->outer_match_level = MLX5_MATCH_L4; - attr->counter = entry->shared_counter->counter; + attr->counter = entry->counter->counter; attr->flags |= MLX5_ESW_ATTR_FLAG_NO_IN_PORT; mlx5_tc_ct_set_tuple_match(netdev_priv(ct_priv->netdev), spec, flow_rule); @@ -732,13 +734,34 @@ err_attr: return err; } -static struct mlx5_ct_shared_counter * +static struct mlx5_ct_counter * +mlx5_tc_ct_counter_create(struct mlx5_tc_ct_priv *ct_priv) +{ + struct mlx5_ct_counter *counter; + int ret; + + counter = kzalloc(sizeof(*counter), GFP_KERNEL); + if (!counter) + return ERR_PTR(-ENOMEM); + + counter->is_shared = false; + counter->counter = mlx5_fc_create(ct_priv->dev, true); + if (IS_ERR(counter->counter)) { + ct_dbg("Failed to create counter for ct entry"); + ret = PTR_ERR(counter->counter); + kfree(counter); + return ERR_PTR(ret); + } + + return counter; +} + +static struct mlx5_ct_counter * mlx5_tc_ct_shared_counter_get(struct mlx5_tc_ct_priv *ct_priv, struct mlx5_ct_entry *entry) { struct mlx5_ct_tuple rev_tuple = entry->tuple; - struct mlx5_ct_shared_counter *shared_counter; - struct mlx5_core_dev *dev = ct_priv->dev; + struct mlx5_ct_counter *shared_counter; struct mlx5_ct_entry *rev_entry; __be16 tmp_port; int ret; @@ -767,25 +790,20 @@ mlx5_tc_ct_shared_counter_get(struct mlx5_tc_ct_priv *ct_priv, rev_entry = rhashtable_lookup_fast(&ct_priv->ct_tuples_ht, &rev_tuple, tuples_ht_params); if (rev_entry) { - if (refcount_inc_not_zero(&rev_entry->shared_counter->refcount)) { + if (refcount_inc_not_zero(&rev_entry->counter->refcount)) { mutex_unlock(&ct_priv->shared_counter_lock); - return rev_entry->shared_counter; + return rev_entry->counter; } } mutex_unlock(&ct_priv->shared_counter_lock); - shared_counter = kzalloc(sizeof(*shared_counter), GFP_KERNEL); - if (!shared_counter) - return ERR_PTR(-ENOMEM); - - shared_counter->counter = mlx5_fc_create(dev, true); - if (IS_ERR(shared_counter->counter)) { - ct_dbg("Failed to create counter for ct entry"); - ret = PTR_ERR(shared_counter->counter); - kfree(shared_counter); + shared_counter = mlx5_tc_ct_counter_create(ct_priv); + if (IS_ERR(shared_counter)) { + ret = PTR_ERR(shared_counter); return ERR_PTR(ret); } + shared_counter->is_shared = true; refcount_set(&shared_counter->refcount, 1); return shared_counter; } @@ -798,10 +816,13 @@ mlx5_tc_ct_entry_add_rules(struct mlx5_tc_ct_priv *ct_priv, { int err; - entry->shared_counter = mlx5_tc_ct_shared_counter_get(ct_priv, entry); - if (IS_ERR(entry->shared_counter)) { - err = PTR_ERR(entry->shared_counter); - ct_dbg("Failed to create counter for ct entry"); + if (nf_ct_acct_enabled(dev_net(ct_priv->netdev))) + entry->counter = mlx5_tc_ct_counter_create(ct_priv); + else + entry->counter = mlx5_tc_ct_shared_counter_get(ct_priv, entry); + + if (IS_ERR(entry->counter)) { + err = PTR_ERR(entry->counter); return err; } @@ -820,7 +841,7 @@ mlx5_tc_ct_entry_add_rules(struct mlx5_tc_ct_priv *ct_priv, err_nat: mlx5_tc_ct_entry_del_rule(ct_priv, entry, false); err_orig: - mlx5_tc_ct_shared_counter_put(ct_priv, entry); + mlx5_tc_ct_counter_put(ct_priv, entry); return err; } @@ -918,7 +939,7 @@ mlx5_tc_ct_del_ft_entry(struct mlx5_tc_ct_priv *ct_priv, rhashtable_remove_fast(&ct_priv->ct_tuples_ht, &entry->tuple_node, tuples_ht_params); mutex_unlock(&ct_priv->shared_counter_lock); - mlx5_tc_ct_shared_counter_put(ct_priv, entry); + mlx5_tc_ct_counter_put(ct_priv, entry); } @@ -956,7 +977,7 @@ mlx5_tc_ct_block_flow_offload_stats(struct mlx5_ct_ft *ft, if (!entry) return -ENOENT; - mlx5_fc_query_cached(entry->shared_counter->counter, &bytes, &packets, &lastuse); + mlx5_fc_query_cached(entry->counter->counter, &bytes, &packets, &lastuse); flow_stats_update(&f->stats, bytes, packets, 0, lastuse, FLOW_ACTION_HW_STATS_DELAYED); -- cgit v1.2.3 From b544011f0e58ce43c40105468d6dc67f980a0c7a Mon Sep 17 00:00:00 2001 From: Moshe Shemesh Date: Fri, 13 Nov 2020 06:06:28 +0200 Subject: net/mlx5e: Fix SWP offsets when vlan inserted by driver In case WQE includes inline header the vlan is inserted by driver even if vlan offload is set. On geneve over vlan interface where software parser is used the SWP offsets should be updated according to the added vlan. Fixes: e3cfc7e6b7bd ("net/mlx5e: TX, Add geneve tunnel stateless offload support") Signed-off-by: Moshe Shemesh Reviewed-by: Tariq Toukan Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h | 9 +++++++++ drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h | 8 +++++--- drivers/net/ethernet/mellanox/mlx5/core/en_tx.c | 9 +++++---- 3 files changed, 19 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h b/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h index 7943eb30b837..4880f2179273 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h @@ -371,6 +371,15 @@ struct mlx5e_swp_spec { u8 tun_l4_proto; }; +static inline void mlx5e_eseg_swp_offsets_add_vlan(struct mlx5_wqe_eth_seg *eseg) +{ + /* SWP offsets are in 2-bytes words */ + eseg->swp_outer_l3_offset += VLAN_HLEN / 2; + eseg->swp_outer_l4_offset += VLAN_HLEN / 2; + eseg->swp_inner_l3_offset += VLAN_HLEN / 2; + eseg->swp_inner_l4_offset += VLAN_HLEN / 2; +} + static inline void mlx5e_set_eseg_swp(struct sk_buff *skb, struct mlx5_wqe_eth_seg *eseg, struct mlx5e_swp_spec *swp_spec) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h index 899b98aca0d3..1fae7fab8297 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h @@ -51,7 +51,7 @@ static inline bool mlx5_geneve_tx_allowed(struct mlx5_core_dev *mdev) } static inline void -mlx5e_tx_tunnel_accel(struct sk_buff *skb, struct mlx5_wqe_eth_seg *eseg) +mlx5e_tx_tunnel_accel(struct sk_buff *skb, struct mlx5_wqe_eth_seg *eseg, u16 ihs) { struct mlx5e_swp_spec swp_spec = {}; unsigned int offset = 0; @@ -85,6 +85,8 @@ mlx5e_tx_tunnel_accel(struct sk_buff *skb, struct mlx5_wqe_eth_seg *eseg) } mlx5e_set_eseg_swp(skb, eseg, &swp_spec); + if (skb_vlan_tag_present(skb) && ihs) + mlx5e_eseg_swp_offsets_add_vlan(eseg); } #else @@ -163,7 +165,7 @@ static inline unsigned int mlx5e_accel_tx_ids_len(struct mlx5e_txqsq *sq, static inline bool mlx5e_accel_tx_eseg(struct mlx5e_priv *priv, struct sk_buff *skb, - struct mlx5_wqe_eth_seg *eseg) + struct mlx5_wqe_eth_seg *eseg, u16 ihs) { #ifdef CONFIG_MLX5_EN_IPSEC if (xfrm_offload(skb)) @@ -172,7 +174,7 @@ static inline bool mlx5e_accel_tx_eseg(struct mlx5e_priv *priv, #if IS_ENABLED(CONFIG_GENEVE) if (skb->encapsulation) - mlx5e_tx_tunnel_accel(skb, eseg); + mlx5e_tx_tunnel_accel(skb, eseg, ihs); #endif return true; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c index e47e2a0059d0..61ed671fe741 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c @@ -682,9 +682,9 @@ void mlx5e_tx_mpwqe_ensure_complete(struct mlx5e_txqsq *sq) static bool mlx5e_txwqe_build_eseg(struct mlx5e_priv *priv, struct mlx5e_txqsq *sq, struct sk_buff *skb, struct mlx5e_accel_tx_state *accel, - struct mlx5_wqe_eth_seg *eseg) + struct mlx5_wqe_eth_seg *eseg, u16 ihs) { - if (unlikely(!mlx5e_accel_tx_eseg(priv, skb, eseg))) + if (unlikely(!mlx5e_accel_tx_eseg(priv, skb, eseg, ihs))) return false; mlx5e_txwqe_build_eseg_csum(sq, skb, accel, eseg); @@ -714,7 +714,8 @@ netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev) if (mlx5e_tx_skb_supports_mpwqe(skb, &attr)) { struct mlx5_wqe_eth_seg eseg = {}; - if (unlikely(!mlx5e_txwqe_build_eseg(priv, sq, skb, &accel, &eseg))) + if (unlikely(!mlx5e_txwqe_build_eseg(priv, sq, skb, &accel, &eseg, + attr.ihs))) return NETDEV_TX_OK; mlx5e_sq_xmit_mpwqe(sq, skb, &eseg, netdev_xmit_more()); @@ -731,7 +732,7 @@ netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev) /* May update the WQE, but may not post other WQEs. */ mlx5e_accel_tx_finish(sq, wqe, &accel, (struct mlx5_wqe_inline_seg *)(wqe->data + wqe_attr.ds_cnt_inl)); - if (unlikely(!mlx5e_txwqe_build_eseg(priv, sq, skb, &accel, &wqe->eth))) + if (unlikely(!mlx5e_txwqe_build_eseg(priv, sq, skb, &accel, &wqe->eth, attr.ihs))) return NETDEV_TX_OK; mlx5e_sq_xmit_wqe(sq, skb, &attr, &wqe_attr, wqe, pi, netdev_xmit_more()); -- cgit v1.2.3 From 25c904b59aaf4816337acd415514b0c47715f604 Mon Sep 17 00:00:00 2001 From: Alaa Hleihel Date: Mon, 4 Jan 2021 12:54:40 +0200 Subject: net/mlx5: E-Switch, fix changing vf VLANID Adding vf VLANID for the first time, or after having cleared previously defined VLANID works fine, however, attempting to change an existing vf VLANID clears the rules on the firmware, but does not add new rules for the new vf VLANID. Fix this by changing the logic in function esw_acl_egress_lgcy_setup() so that it will always configure egress rules. Fixes: ea651a86d468 ("net/mlx5: E-Switch, Refactor eswitch egress acl codes") Signed-off-by: Alaa Hleihel Signed-off-by: Saeed Mahameed --- .../mellanox/mlx5/core/esw/acl/egress_lgcy.c | 27 +++++++++++----------- 1 file changed, 13 insertions(+), 14 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/egress_lgcy.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/egress_lgcy.c index 2b85d4777303..3e19b1721303 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/egress_lgcy.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/egress_lgcy.c @@ -95,22 +95,21 @@ int esw_acl_egress_lgcy_setup(struct mlx5_eswitch *esw, return 0; } - if (!IS_ERR_OR_NULL(vport->egress.acl)) - return 0; - - vport->egress.acl = esw_acl_table_create(esw, vport->vport, - MLX5_FLOW_NAMESPACE_ESW_EGRESS, - table_size); - if (IS_ERR(vport->egress.acl)) { - err = PTR_ERR(vport->egress.acl); - vport->egress.acl = NULL; - goto out; + if (!vport->egress.acl) { + vport->egress.acl = esw_acl_table_create(esw, vport->vport, + MLX5_FLOW_NAMESPACE_ESW_EGRESS, + table_size); + if (IS_ERR(vport->egress.acl)) { + err = PTR_ERR(vport->egress.acl); + vport->egress.acl = NULL; + goto out; + } + + err = esw_acl_egress_lgcy_groups_create(esw, vport); + if (err) + goto out; } - err = esw_acl_egress_lgcy_groups_create(esw, vport); - if (err) - goto out; - esw_debug(esw->dev, "vport[%d] configure egress rules, vlan(%d) qos(%d)\n", vport->vport, vport->info.vlan, vport->info.qos); -- cgit v1.2.3 From e13ed0ac064dd6ee964155ba9fdc2f3c3785934c Mon Sep 17 00:00:00 2001 From: Maor Dickman Date: Mon, 14 Dec 2020 13:53:03 +0200 Subject: net/mlx5e: In skb build skip setting mark in switchdev mode sop_drop_qpn field in the cqe is used by two features, in SWITCHDEV mode to restore the chain id in case of a miss and in LEGACY mode to support skbedit mark action. In build RX skb, the skb mark field is set regardless of the configured mode which cause a corruption of the mark field in case of switchdev mode. Fix by overriding the mark value back to 0 in the representor tc update skb flow. Fixes: 8f1e0b97cc70 ("net/mlx5: E-Switch, Mark miss packets with new chain id mapping") Signed-off-by: Maor Dickman Reviewed-by: Raed Salem Reviewed-by: Oz Shlomo Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c index d29af7b9c695..76177f7c5ec2 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c @@ -626,6 +626,11 @@ bool mlx5e_rep_tc_update_skb(struct mlx5_cqe64 *cqe, if (!reg_c0) return true; + /* If reg_c0 is not equal to the default flow tag then skb->mark + * is not supported and must be reset back to 0. + */ + skb->mark = 0; + priv = netdev_priv(skb->dev); esw = priv->mdev->priv.eswitch; -- cgit v1.2.3 From b1c0aca3d3ddeebeec57ada9c2df9ed647939249 Mon Sep 17 00:00:00 2001 From: Aya Levin Date: Sun, 27 Dec 2020 16:33:19 +0200 Subject: net/mlx5e: ethtool, Fix restriction of autoneg with 56G Prior to this patch, configuring speed to 50G with autoneg off over devices supporting 50G per lane failed. Support for 50G per lane introduced a new set of link-modes, on which driver always performed a speed validation as if only legacy link-modes were configured. Fix driver speed validation to force setting autoneg over 56G only if in legacy link-mode. Fixes: 3d7cadae51f1 ("net/mlx5e: ethtool, Fix analysis of speed setting") Signed-off-by: Aya Levin Reviewed-by: Eran Ben Elisha Signed-off-by: Saeed Mahameed --- .../net/ethernet/mellanox/mlx5/core/en_ethtool.c | 24 ++++++++++++++++------ 1 file changed, 18 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index d9076d543104..2d37742a888c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -1010,6 +1010,22 @@ static int mlx5e_get_link_ksettings(struct net_device *netdev, return mlx5e_ethtool_get_link_ksettings(priv, link_ksettings); } +static int mlx5e_speed_validate(struct net_device *netdev, bool ext, + const unsigned long link_modes, u8 autoneg) +{ + /* Extended link-mode has no speed limitations. */ + if (ext) + return 0; + + if ((link_modes & MLX5E_PROT_MASK(MLX5E_56GBASE_R4)) && + autoneg != AUTONEG_ENABLE) { + netdev_err(netdev, "%s: 56G link speed requires autoneg enabled\n", + __func__); + return -EINVAL; + } + return 0; +} + static u32 mlx5e_ethtool2ptys_adver_link(const unsigned long *link_modes) { u32 i, ptys_modes = 0; @@ -1103,13 +1119,9 @@ int mlx5e_ethtool_set_link_ksettings(struct mlx5e_priv *priv, link_modes = autoneg == AUTONEG_ENABLE ? ethtool2ptys_adver_func(adver) : mlx5e_port_speed2linkmodes(mdev, speed, !ext); - if ((link_modes & MLX5E_PROT_MASK(MLX5E_56GBASE_R4)) && - autoneg != AUTONEG_ENABLE) { - netdev_err(priv->netdev, "%s: 56G link speed requires autoneg enabled\n", - __func__); - err = -EINVAL; + err = mlx5e_speed_validate(priv->netdev, ext, link_modes, autoneg); + if (err) goto out; - } link_modes = link_modes & eproto.cap; if (!link_modes) { -- cgit v1.2.3 From 4d8be21112f6fa2ac4b8a13f35866ad65b11d48c Mon Sep 17 00:00:00 2001 From: Leon Romanovsky Date: Mon, 4 Jan 2021 10:08:36 +0200 Subject: net/mlx5: Release devlink object if adev fails Add missed freeing previously allocated devlink object. Fixes: a925b5e309c9 ("net/mlx5: Register mlx5 devices to auxiliary virtual bus") Signed-off-by: Leon Romanovsky Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/main.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index c08315b51fd3..ca6f2fc39ea0 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -1368,8 +1368,10 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *id) MLX5_COREDEV_VF : MLX5_COREDEV_PF; dev->priv.adev_idx = mlx5_adev_idx_alloc(); - if (dev->priv.adev_idx < 0) - return dev->priv.adev_idx; + if (dev->priv.adev_idx < 0) { + err = dev->priv.adev_idx; + goto adev_init_err; + } err = mlx5_mdev_init(dev, prof_sel); if (err) @@ -1403,6 +1405,7 @@ pci_init_err: mlx5_mdev_uninit(dev); mdev_init_err: mlx5_adev_idx_free(dev->priv.adev_idx); +adev_init_err: mlx5_devlink_free(devlink); return err; -- cgit v1.2.3 From 7a6eb072a9548492ead086f3e820e9aac71c7138 Mon Sep 17 00:00:00 2001 From: Dinghao Liu Date: Mon, 28 Dec 2020 16:48:40 +0800 Subject: net/mlx5e: Fix two double free cases mlx5e_create_ttc_table_groups() frees ft->g on failure of kvzalloc(), but such failure will be caught by its caller in mlx5e_create_ttc_table() and ft->g will be freed again in mlx5e_destroy_flow_table(). The same issue also occurs in mlx5e_create_ttc_table_groups(). Set ft->g to NULL after kfree() to avoid double free. Fixes: 7b3722fa9ef6 ("net/mlx5e: Support RSS for GRE tunneled packets") Fixes: 33cfaaa8f36f ("net/mlx5e: Split the main flow steering table") Signed-off-by: Dinghao Liu Reviewed-by: Leon Romanovsky Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en_fs.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c index fa8149f6eb08..44a2dfbc3853 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c @@ -942,6 +942,7 @@ static int mlx5e_create_ttc_table_groups(struct mlx5e_ttc_table *ttc, in = kvzalloc(inlen, GFP_KERNEL); if (!in) { kfree(ft->g); + ft->g = NULL; return -ENOMEM; } @@ -1087,6 +1088,7 @@ static int mlx5e_create_inner_ttc_table_groups(struct mlx5e_ttc_table *ttc) in = kvzalloc(inlen, GFP_KERNEL); if (!in) { kfree(ft->g); + ft->g = NULL; return -ENOMEM; } -- cgit v1.2.3 From 5b0bb12c58ac7d22e05b5bfdaa30a116c8c32e32 Mon Sep 17 00:00:00 2001 From: Dinghao Liu Date: Mon, 21 Dec 2020 19:27:31 +0800 Subject: net/mlx5e: Fix memleak in mlx5e_create_l2_table_groups When mlx5_create_flow_group() fails, ft->g should be freed just like when kvzalloc() fails. The caller of mlx5e_create_l2_table_groups() does not catch this issue on failure, which leads to memleak. Fixes: 33cfaaa8f36f ("net/mlx5e: Split the main flow steering table") Signed-off-by: Dinghao Liu Reviewed-by: Leon Romanovsky Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en_fs.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c index 44a2dfbc3853..e02e5895703d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c @@ -1392,6 +1392,7 @@ err_destroy_groups: ft->g[ft->num_groups] = NULL; mlx5e_destroy_groups(ft); kvfree(in); + kfree(ft->g); return err; } -- cgit v1.2.3 From f3562f5e00bbae2a6b292941ec76a9140aa3b7dd Mon Sep 17 00:00:00 2001 From: Lukas Bulwahn Date: Wed, 6 Jan 2021 17:17:35 +0100 Subject: docs: octeontx2: tune rst markup Commit 80b9414832a1 ("docs: octeontx2: Add Documentation for NPA health reporters") added new documentation with improper formatting for rst, and caused a few new warnings for make htmldocs in octeontx2.rst:169--202. Tune markup and formatting for better presentation in the HTML view. Signed-off-by: Lukas Bulwahn Acked-by: Randy Dunlap Acked-by: George Cherian Link: https://lore.kernel.org/r/20210106161735.21751-1-lukas.bulwahn@gmail.com Signed-off-by: Jakub Kicinski --- .../device_drivers/ethernet/marvell/octeontx2.rst | 62 +++++++++++++--------- 1 file changed, 36 insertions(+), 26 deletions(-) diff --git a/Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst b/Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst index d3fcf536d14e..61e850460e18 100644 --- a/Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst +++ b/Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst @@ -164,46 +164,56 @@ Devlink health reporters NPA Reporters ------------- -The NPA reporters are responsible for reporting and recovering the following group of errors +The NPA reporters are responsible for reporting and recovering the following group of errors: + 1. GENERAL events + - Error due to operation of unmapped PF. - Error due to disabled alloc/free for other HW blocks (NIX, SSO, TIM, DPI and AURA). + 2. ERROR events + - Fault due to NPA_AQ_INST_S read or NPA_AQ_RES_S write. - AQ Doorbell Error. + 3. RAS events + - RAS Error Reporting for NPA_AQ_INST_S/NPA_AQ_RES_S. + 4. RVU events + - Error due to unmapped slot. -Sample Output -------------- -~# devlink health -pci/0002:01:00.0: - reporter hw_npa_intr - state healthy error 2872 recover 2872 last_dump_date 2020-12-10 last_dump_time 09:39:09 grace_period 0 auto_recover true auto_dump true - reporter hw_npa_gen - state healthy error 2872 recover 2872 last_dump_date 2020-12-11 last_dump_time 04:43:04 grace_period 0 auto_recover true auto_dump true - reporter hw_npa_err - state healthy error 2871 recover 2871 last_dump_date 2020-12-10 last_dump_time 09:39:17 grace_period 0 auto_recover true auto_dump true - reporter hw_npa_ras - state healthy error 0 recover 0 last_dump_date 2020-12-10 last_dump_time 09:32:40 grace_period 0 auto_recover true auto_dump true +Sample Output:: + + ~# devlink health + pci/0002:01:00.0: + reporter hw_npa_intr + state healthy error 2872 recover 2872 last_dump_date 2020-12-10 last_dump_time 09:39:09 grace_period 0 auto_recover true auto_dump true + reporter hw_npa_gen + state healthy error 2872 recover 2872 last_dump_date 2020-12-11 last_dump_time 04:43:04 grace_period 0 auto_recover true auto_dump true + reporter hw_npa_err + state healthy error 2871 recover 2871 last_dump_date 2020-12-10 last_dump_time 09:39:17 grace_period 0 auto_recover true auto_dump true + reporter hw_npa_ras + state healthy error 0 recover 0 last_dump_date 2020-12-10 last_dump_time 09:32:40 grace_period 0 auto_recover true auto_dump true Each reporter dumps the + - Error Type - Error Register value - Reason in words -For eg: -~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_gen - NPA_AF_GENERAL: - NPA General Interrupt Reg : 1 - NIX0: free disabled RX -~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_intr - NPA_AF_RVU: - NPA RVU Interrupt Reg : 1 - Unmap Slot Error -~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_err - NPA_AF_ERR: - NPA Error Interrupt Reg : 4096 - AQ Doorbell Error +For example:: + + ~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_gen + NPA_AF_GENERAL: + NPA General Interrupt Reg : 1 + NIX0: free disabled RX + ~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_intr + NPA_AF_RVU: + NPA RVU Interrupt Reg : 1 + Unmap Slot Error + ~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_err + NPA_AF_ERR: + NPA Error Interrupt Reg : 4096 + AQ Doorbell Error -- cgit v1.2.3 From 9e7a67dee27902fedab880b9af909bd4acd0fba9 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Wed, 6 Jan 2021 00:15:21 +0100 Subject: selftests: netfilter: add selftest for ipip pmtu discovery with enabled connection tracking Convert Christians bug description into a reproducer. Cc: Shuah Khan Reported-by: Christian Perle Signed-off-by: Florian Westphal Acked-by: Pablo Neira Ayuso Signed-off-by: Jakub Kicinski --- tools/testing/selftests/netfilter/Makefile | 3 +- .../selftests/netfilter/ipip-conntrack-mtu.sh | 206 +++++++++++++++++++++ 2 files changed, 208 insertions(+), 1 deletion(-) create mode 100755 tools/testing/selftests/netfilter/ipip-conntrack-mtu.sh diff --git a/tools/testing/selftests/netfilter/Makefile b/tools/testing/selftests/netfilter/Makefile index a374e10ef506..3006a8e5b41a 100644 --- a/tools/testing/selftests/netfilter/Makefile +++ b/tools/testing/selftests/netfilter/Makefile @@ -4,7 +4,8 @@ TEST_PROGS := nft_trans_stress.sh nft_nat.sh bridge_brouter.sh \ conntrack_icmp_related.sh nft_flowtable.sh ipvs.sh \ nft_concat_range.sh nft_conntrack_helper.sh \ - nft_queue.sh nft_meta.sh + nft_queue.sh nft_meta.sh \ + ipip-conntrack-mtu.sh LDLIBS = -lmnl TEST_GEN_FILES = nf-queue diff --git a/tools/testing/selftests/netfilter/ipip-conntrack-mtu.sh b/tools/testing/selftests/netfilter/ipip-conntrack-mtu.sh new file mode 100755 index 000000000000..4a6f5c3b3215 --- /dev/null +++ b/tools/testing/selftests/netfilter/ipip-conntrack-mtu.sh @@ -0,0 +1,206 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + +# Conntrack needs to reassemble fragments in order to have complete +# packets for rule matching. Reassembly can lead to packet loss. + +# Consider the following setup: +# +--------+ +---------+ +--------+ +# |Router A|-------|Wanrouter|-------|Router B| +# | |.IPIP..| |..IPIP.| | +# +--------+ +---------+ +--------+ +# / mtu 1400 \ +# / \ +#+--------+ +--------+ +#|Client A| |Client B| +#| | | | +#+--------+ +--------+ + +# Router A and Router B use IPIP tunnel interfaces to tunnel traffic +# between Client A and Client B over WAN. Wanrouter has MTU 1400 set +# on its interfaces. + +rnd=$(mktemp -u XXXXXXXX) +rx=$(mktemp) + +r_a="ns-ra-$rnd" +r_b="ns-rb-$rnd" +r_w="ns-rw-$rnd" +c_a="ns-ca-$rnd" +c_b="ns-cb-$rnd" + +checktool (){ + if ! $1 > /dev/null 2>&1; then + echo "SKIP: Could not $2" + exit $ksft_skip + fi +} + +checktool "iptables --version" "run test without iptables" +checktool "ip -Version" "run test without ip tool" +checktool "which nc" "run test without nc (netcat)" +checktool "ip netns add ${r_a}" "create net namespace" + +for n in ${r_b} ${r_w} ${c_a} ${c_b};do + ip netns add ${n} +done + +cleanup() { + for n in ${r_a} ${r_b} ${r_w} ${c_a} ${c_b};do + ip netns del ${n} + done + rm -f ${rx} +} + +trap cleanup EXIT + +test_path() { + msg="$1" + + ip netns exec ${c_b} nc -n -w 3 -q 3 -u -l -p 5000 > ${rx} < /dev/null & + + sleep 1 + for i in 1 2 3; do + head -c1400 /dev/zero | tr "\000" "a" | ip netns exec ${c_a} nc -n -w 1 -u 192.168.20.2 5000 + done + + wait + + bytes=$(wc -c < ${rx}) + + if [ $bytes -eq 1400 ];then + echo "OK: PMTU $msg connection tracking" + else + echo "FAIL: PMTU $msg connection tracking: got $bytes, expected 1400" + exit 1 + fi +} + +# Detailed setup for Router A +# --------------------------- +# Interfaces: +# eth0: 10.2.2.1/24 +# eth1: 192.168.10.1/24 +# ipip0: No IP address, local 10.2.2.1 remote 10.4.4.1 +# Routes: +# 192.168.20.0/24 dev ipip0 (192.168.20.0/24 is subnet of Client B) +# 10.4.4.1 via 10.2.2.254 (Router B via Wanrouter) +# No iptables rules at all. + +ip link add veth0 netns ${r_a} type veth peer name veth0 netns ${r_w} +ip link add veth1 netns ${r_a} type veth peer name veth0 netns ${c_a} + +l_addr="10.2.2.1" +r_addr="10.4.4.1" +ip netns exec ${r_a} ip link add ipip0 type ipip local ${l_addr} remote ${r_addr} mode ipip || exit $ksft_skip + +for dev in lo veth0 veth1 ipip0; do + ip -net ${r_a} link set $dev up +done + +ip -net ${r_a} addr add 10.2.2.1/24 dev veth0 +ip -net ${r_a} addr add 192.168.10.1/24 dev veth1 + +ip -net ${r_a} route add 192.168.20.0/24 dev ipip0 +ip -net ${r_a} route add 10.4.4.0/24 via 10.2.2.254 + +ip netns exec ${r_a} sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null + +# Detailed setup for Router B +# --------------------------- +# Interfaces: +# eth0: 10.4.4.1/24 +# eth1: 192.168.20.1/24 +# ipip0: No IP address, local 10.4.4.1 remote 10.2.2.1 +# Routes: +# 192.168.10.0/24 dev ipip0 (192.168.10.0/24 is subnet of Client A) +# 10.2.2.1 via 10.4.4.254 (Router A via Wanrouter) +# No iptables rules at all. + +ip link add veth0 netns ${r_b} type veth peer name veth1 netns ${r_w} +ip link add veth1 netns ${r_b} type veth peer name veth0 netns ${c_b} + +l_addr="10.4.4.1" +r_addr="10.2.2.1" + +ip netns exec ${r_b} ip link add ipip0 type ipip local ${l_addr} remote ${r_addr} mode ipip || exit $ksft_skip + +for dev in lo veth0 veth1 ipip0; do + ip -net ${r_b} link set $dev up +done + +ip -net ${r_b} addr add 10.4.4.1/24 dev veth0 +ip -net ${r_b} addr add 192.168.20.1/24 dev veth1 + +ip -net ${r_b} route add 192.168.10.0/24 dev ipip0 +ip -net ${r_b} route add 10.2.2.0/24 via 10.4.4.254 +ip netns exec ${r_b} sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null + +# Client A +ip -net ${c_a} addr add 192.168.10.2/24 dev veth0 +ip -net ${c_a} link set dev lo up +ip -net ${c_a} link set dev veth0 up +ip -net ${c_a} route add default via 192.168.10.1 + +# Client A +ip -net ${c_b} addr add 192.168.20.2/24 dev veth0 +ip -net ${c_b} link set dev veth0 up +ip -net ${c_b} link set dev lo up +ip -net ${c_b} route add default via 192.168.20.1 + +# Wan +ip -net ${r_w} addr add 10.2.2.254/24 dev veth0 +ip -net ${r_w} addr add 10.4.4.254/24 dev veth1 + +ip -net ${r_w} link set dev lo up +ip -net ${r_w} link set dev veth0 up mtu 1400 +ip -net ${r_w} link set dev veth1 up mtu 1400 + +ip -net ${r_a} link set dev veth0 mtu 1400 +ip -net ${r_b} link set dev veth0 mtu 1400 + +ip netns exec ${r_w} sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null + +# Path MTU discovery +# ------------------ +# Running tracepath from Client A to Client B shows PMTU discovery is working +# as expected: +# +# clienta:~# tracepath 192.168.20.2 +# 1?: [LOCALHOST] pmtu 1500 +# 1: 192.168.10.1 0.867ms +# 1: 192.168.10.1 0.302ms +# 2: 192.168.10.1 0.312ms pmtu 1480 +# 2: no reply +# 3: 192.168.10.1 0.510ms pmtu 1380 +# 3: 192.168.20.2 2.320ms reached +# Resume: pmtu 1380 hops 3 back 3 + +# ip netns exec ${c_a} traceroute --mtu 192.168.20.2 + +# Router A has learned PMTU (1400) to Router B from Wanrouter. +# Client A has learned PMTU (1400 - IPIP overhead = 1380) to Client B +# from Router A. + +#Send large UDP packet +#--------------------- +#Now we send a 1400 bytes UDP packet from Client A to Client B: + +# clienta:~# head -c1400 /dev/zero | tr "\000" "a" | nc -u 192.168.20.2 5000 +test_path "without" + +# The IPv4 stack on Client A already knows the PMTU to Client B, so the +# UDP packet is sent as two fragments (1380 + 20). Router A forwards the +# fragments between eth1 and ipip0. The fragments fit into the tunnel and +# reach their destination. + +#When sending the large UDP packet again, Router A now reassembles the +#fragments before routing the packet over ipip0. The resulting IPIP +#packet is too big (1400) for the tunnel PMTU (1380) to Router B, it is +#dropped on Router A before sending. + +ip netns exec ${r_a} iptables -A FORWARD -m conntrack --ctstate NEW +test_path "with" -- cgit v1.2.3 From 50c661670f6a3908c273503dfa206dfc7aa54c07 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Wed, 6 Jan 2021 00:15:22 +0100 Subject: net: fix pmtu check in nopmtudisc mode For some reason ip_tunnel insist on setting the DF bit anyway when the inner header has the DF bit set, EVEN if the tunnel was configured with 'nopmtudisc'. This means that the script added in the previous commit cannot be made to work by adding the 'nopmtudisc' flag to the ip tunnel configuration. Doing so breaks connectivity even for the without-conntrack/netfilter scenario. When nopmtudisc is set, the tunnel will skip the mtu check, so no icmp error is sent to client. Then, because inner header has DF set, the outer header gets added with DF bit set as well. IP stack then sends an error to itself because the packet exceeds the device MTU. Fixes: 23a3647bc4f93 ("ip_tunnels: Use skb-len to PMTU check.") Cc: Stefano Brivio Signed-off-by: Florian Westphal Acked-by: Pablo Neira Ayuso Signed-off-by: Jakub Kicinski --- net/ipv4/ip_tunnel.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c index ee65c9225178..64594aa755f0 100644 --- a/net/ipv4/ip_tunnel.c +++ b/net/ipv4/ip_tunnel.c @@ -759,8 +759,11 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev, goto tx_error; } - if (tnl_update_pmtu(dev, skb, rt, tnl_params->frag_off, inner_iph, - 0, 0, false)) { + df = tnl_params->frag_off; + if (skb->protocol == htons(ETH_P_IP) && !tunnel->ignore_df) + df |= (inner_iph->frag_off & htons(IP_DF)); + + if (tnl_update_pmtu(dev, skb, rt, df, inner_iph, 0, 0, false)) { ip_rt_put(rt); goto tx_error; } @@ -788,10 +791,6 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev, ttl = ip4_dst_hoplimit(&rt->dst); } - df = tnl_params->frag_off; - if (skb->protocol == htons(ETH_P_IP) && !tunnel->ignore_df) - df |= (inner_iph->frag_off&htons(IP_DF)); - max_headroom = LL_RESERVED_SPACE(rt->dst.dev) + sizeof(struct iphdr) + rt->dst.header_len + ip_encap_hlen(&tunnel->encap); if (max_headroom > dev->needed_headroom) -- cgit v1.2.3 From bb4cc1a18856a73f0ff5137df0c2a31f4c50f6cf Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Wed, 6 Jan 2021 00:15:23 +0100 Subject: net: ip: always refragment ip defragmented packets Conntrack reassembly records the largest fragment size seen in IPCB. However, when this gets forwarded/transmitted, fragmentation will only be forced if one of the fragmented packets had the DF bit set. In that case, a flag in IPCB will force fragmentation even if the MTU is large enough. This should work fine, but this breaks with ip tunnels. Consider client that sends a UDP datagram of size X to another host. The client fragments the datagram, so two packets, of size y and z, are sent. DF bit is not set on any of these packets. Middlebox netfilter reassembles those packets back to single size-X packet, before routing decision. packet-size-vs-mtu checks in ip_forward are irrelevant, because DF bit isn't set. At output time, ip refragmentation is skipped as well because x is still smaller than the mtu of the output device. If ttransmit device is an ip tunnel, the packet size increases to x+overhead. Also, tunnel might be configured to force DF bit on outer header. In this case, packet will be dropped (exceeds MTU) and an ICMP error is generated back to sender. But sender already respects the announced MTU, all the packets that it sent did fit the announced mtu. Force refragmentation as per original sizes unconditionally so ip tunnel will encapsulate the fragments instead. The only other solution I see is to place ip refragmentation in the ip_tunnel code to handle this case. Fixes: d6b915e29f4ad ("ip_fragment: don't forward defragmented DF packet") Reported-by: Christian Perle Signed-off-by: Florian Westphal Acked-by: Pablo Neira Ayuso Signed-off-by: Jakub Kicinski --- net/ipv4/ip_output.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 89fff5f59eea..2ed0b01f72f0 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -302,7 +302,7 @@ static int __ip_finish_output(struct net *net, struct sock *sk, struct sk_buff * if (skb_is_gso(skb)) return ip_finish_output_gso(net, sk, skb, mtu); - if (skb->len > mtu || (IPCB(skb)->flags & IPSKB_FRAG_PMTU)) + if (skb->len > mtu || IPCB(skb)->frag_max_size) return ip_fragment(net, sk, skb, mtu, ip_finish_output2); return ip_finish_output2(net, sk, skb); -- cgit v1.2.3 From 717df0f4cdc9044c415431a3522b3e9ccca5b4a3 Mon Sep 17 00:00:00 2001 From: Ayush Sawal Date: Wed, 6 Jan 2021 09:59:06 +0530 Subject: chtls: Fix hardware tid leak send_abort_rpl() is not calculating cpl_abort_req_rss offset and ends up sending wrong TID with abort_rpl WR causng tid leaks. Replaced send_abort_rpl() with chtls_send_abort_rpl() as it is redundant. Fixes: cc35c88ae4db ("crypto : chtls - CPL handler definition") Signed-off-by: Rohit Maheshwari Signed-off-by: Ayush Sawal Signed-off-by: Jakub Kicinski --- .../chelsio/inline_crypto/chtls/chtls_cm.c | 39 ++-------------------- 1 file changed, 3 insertions(+), 36 deletions(-) diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c index a0e0d8a83681..561b5f2273af 100644 --- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c +++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c @@ -1997,39 +1997,6 @@ static void t4_defer_reply(struct sk_buff *skb, struct chtls_dev *cdev, spin_unlock_bh(&cdev->deferq.lock); } -static void send_abort_rpl(struct sock *sk, struct sk_buff *skb, - struct chtls_dev *cdev, int status, int queue) -{ - struct cpl_abort_req_rss *req = cplhdr(skb); - struct sk_buff *reply_skb; - struct chtls_sock *csk; - - csk = rcu_dereference_sk_user_data(sk); - - reply_skb = alloc_skb(sizeof(struct cpl_abort_rpl), - GFP_KERNEL); - - if (!reply_skb) { - req->status = (queue << 1); - t4_defer_reply(skb, cdev, send_defer_abort_rpl); - return; - } - - set_abort_rpl_wr(reply_skb, GET_TID(req), status); - kfree_skb(skb); - - set_wr_txq(reply_skb, CPL_PRIORITY_DATA, queue); - if (csk_conn_inline(csk)) { - struct l2t_entry *e = csk->l2t_entry; - - if (e && sk->sk_state != TCP_SYN_RECV) { - cxgb4_l2t_send(csk->egress_dev, reply_skb, e); - return; - } - } - cxgb4_ofld_send(cdev->lldi->ports[0], reply_skb); -} - static void chtls_send_abort_rpl(struct sock *sk, struct sk_buff *skb, struct chtls_dev *cdev, int status, int queue) @@ -2079,8 +2046,8 @@ static void bl_abort_syn_rcv(struct sock *lsk, struct sk_buff *skb) skb->sk = NULL; do_abort_syn_rcv(child, lsk); - send_abort_rpl(child, skb, BLOG_SKB_CB(skb)->cdev, - CPL_ABORT_NO_RST, queue); + chtls_send_abort_rpl(child, skb, BLOG_SKB_CB(skb)->cdev, + CPL_ABORT_NO_RST, queue); } static int abort_syn_rcv(struct sock *sk, struct sk_buff *skb) @@ -2111,7 +2078,7 @@ static int abort_syn_rcv(struct sock *sk, struct sk_buff *skb) int queue = csk->txq_idx; do_abort_syn_rcv(sk, psk); - send_abort_rpl(sk, skb, cdev, CPL_ABORT_NO_RST, queue); + chtls_send_abort_rpl(sk, skb, cdev, CPL_ABORT_NO_RST, queue); } else { skb->sk = sk; BLOG_SKB_CB(skb)->backlog_rcv = bl_abort_syn_rcv; -- cgit v1.2.3 From 827d329105bfde6701f0077e34a09c4a86e27145 Mon Sep 17 00:00:00 2001 From: Ayush Sawal Date: Wed, 6 Jan 2021 09:59:07 +0530 Subject: chtls: Remove invalid set_tcb call At the time of SYN_RECV, connection information is not initialized at FW, updating tcb flag over uninitialized connection causes adapter crash. We don't need to update the flag during SYN_RECV state, so avoid this. Fixes: cc35c88ae4db ("crypto : chtls - CPL handler definition") Signed-off-by: Rohit Maheshwari Signed-off-by: Ayush Sawal Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c index 561b5f2273af..431d1e3844ab 100644 --- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c +++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c @@ -2096,9 +2096,6 @@ static void chtls_abort_req_rss(struct sock *sk, struct sk_buff *skb) int queue = csk->txq_idx; if (is_neg_adv(req->status)) { - if (sk->sk_state == TCP_SYN_RECV) - chtls_set_tcb_tflag(sk, 0, 0); - kfree_skb(skb); return; } -- cgit v1.2.3 From 5a5fac9966bb6d513198634b0b1357be7e8447d2 Mon Sep 17 00:00:00 2001 From: Ayush Sawal Date: Wed, 6 Jan 2021 09:59:08 +0530 Subject: chtls: Fix panic when route to peer not configured If route to peer is not configured, we might get non tls devices from dst_neigh_lookup() which is invalid, adding a check to avoid it. Fixes: cc35c88ae4db ("crypto : chtls - CPL handler definition") Signed-off-by: Rohit Maheshwari Signed-off-by: Ayush Sawal Signed-off-by: Jakub Kicinski --- .../net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c index 431d1e3844ab..04a8bd5af3b9 100644 --- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c +++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c @@ -1109,6 +1109,7 @@ static struct sock *chtls_recv_sock(struct sock *lsk, const struct cpl_pass_accept_req *req, struct chtls_dev *cdev) { + struct adapter *adap = pci_get_drvdata(cdev->pdev); struct neighbour *n = NULL; struct inet_sock *newinet; const struct iphdr *iph; @@ -1118,9 +1119,10 @@ static struct sock *chtls_recv_sock(struct sock *lsk, struct dst_entry *dst; struct tcp_sock *tp; struct sock *newsk; + bool found = false; u16 port_id; int rxq_idx; - int step; + int step, i; iph = (const struct iphdr *)network_hdr; newsk = tcp_create_openreq_child(lsk, oreq, cdev->askb); @@ -1152,7 +1154,7 @@ static struct sock *chtls_recv_sock(struct sock *lsk, n = dst_neigh_lookup(dst, &ip6h->saddr); #endif } - if (!n) + if (!n || !n->dev) goto free_sk; ndev = n->dev; @@ -1161,6 +1163,13 @@ static struct sock *chtls_recv_sock(struct sock *lsk, if (is_vlan_dev(ndev)) ndev = vlan_dev_real_dev(ndev); + for_each_port(adap, i) + if (cdev->ports[i] == ndev) + found = true; + + if (!found) + goto free_dst; + port_id = cxgb4_port_idx(ndev); csk = chtls_sock_create(cdev); @@ -1238,6 +1247,7 @@ static struct sock *chtls_recv_sock(struct sock *lsk, free_csk: chtls_sock_release(&csk->kref); free_dst: + neigh_release(n); dst_release(dst); free_sk: inet_csk_prepare_forced_close(newsk); -- cgit v1.2.3 From f8d15d29d6e6b32704c8fce9229716ca145a0de2 Mon Sep 17 00:00:00 2001 From: Ayush Sawal Date: Wed, 6 Jan 2021 09:59:09 +0530 Subject: chtls: Avoid unnecessary freeing of oreq pointer In chtls_pass_accept_request(), removing the chtls_reqsk_free() call to avoid oreq freeing twice. Here oreq is the pointer to struct request_sock. Fixes: cc35c88ae4db ("crypto : chtls - CPL handler definition") Signed-off-by: Rohit Maheshwari Signed-off-by: Ayush Sawal Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c index 04a8bd5af3b9..3022c802d09a 100644 --- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c +++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c @@ -1397,7 +1397,7 @@ static void chtls_pass_accept_request(struct sock *sk, newsk = chtls_recv_sock(sk, oreq, network_hdr, req, cdev); if (!newsk) - goto free_oreq; + goto reject; if (chtls_get_module(newsk)) goto reject; @@ -1413,8 +1413,6 @@ static void chtls_pass_accept_request(struct sock *sk, kfree_skb(skb); return; -free_oreq: - chtls_reqsk_free(oreq); reject: mk_tid_release(reply_skb, 0, tid); cxgb4_ofld_send(cdev->lldi->ports[0], reply_skb); -- cgit v1.2.3 From a84b2c0d5fa23da6d6c8c0d5f5c93184a2744d3e Mon Sep 17 00:00:00 2001 From: Ayush Sawal Date: Wed, 6 Jan 2021 09:59:10 +0530 Subject: chtls: Replace skb_dequeue with skb_peek The skb is unlinked twice, one in __skb_dequeue in function chtls_reset_synq() and another in cleanup_syn_rcv_conn(). So in this patch using skb_peek() instead of __skb_dequeue(), so that unlink will be handled only in cleanup_syn_rcv_conn(). Fixes: cc35c88ae4db ("crypto : chtls - CPL handler definition") Signed-off-by: Vinay Kumar Yadav Signed-off-by: Ayush Sawal Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c index 3022c802d09a..ff3969a24d74 100644 --- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c +++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c @@ -621,7 +621,7 @@ static void chtls_reset_synq(struct listen_ctx *listen_ctx) while (!skb_queue_empty(&listen_ctx->synq)) { struct chtls_sock *csk = - container_of((struct synq *)__skb_dequeue + container_of((struct synq *)skb_peek (&listen_ctx->synq), struct chtls_sock, synq); struct sock *child = csk->sk; -- cgit v1.2.3 From eade1e0a4fb31d48eeb1589d9bb859ae4dd6181d Mon Sep 17 00:00:00 2001 From: Ayush Sawal Date: Wed, 6 Jan 2021 09:59:11 +0530 Subject: chtls: Added a check to avoid NULL pointer dereference In case of server removal lookup_stid() may return NULL pointer, which is used as listen_ctx. So added a check before accessing this pointer. Fixes: cc35c88ae4db ("crypto : chtls - CPL handler definition") Signed-off-by: Vinay Kumar Yadav Signed-off-by: Ayush Sawal Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c index ff3969a24d74..1c6d3c93a0c8 100644 --- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c +++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c @@ -1597,6 +1597,11 @@ static int chtls_pass_establish(struct chtls_dev *cdev, struct sk_buff *skb) sk_wake_async(sk, 0, POLL_OUT); data = lookup_stid(cdev->tids, stid); + if (!data) { + /* listening server close */ + kfree_skb(skb); + goto unlock; + } lsk = ((struct listen_ctx *)data)->lsk; bh_lock_sock(lsk); -- cgit v1.2.3 From 15ef6b0e30b354253e2c10b3836bc59767eb162b Mon Sep 17 00:00:00 2001 From: Ayush Sawal Date: Wed, 6 Jan 2021 09:59:12 +0530 Subject: chtls: Fix chtls resources release sequence CPL_ABORT_RPL is sent after releasing the resources by calling chtls_release_resources(sk); and chtls_conn_done(sk); eventually causing kernel panic. Fixing it by calling release in appropriate order. Fixes: cc35c88ae4db ("crypto : chtls - CPL handler definition") Signed-off-by: Vinay Kumar Yadav Signed-off-by: Ayush Sawal Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c index 1c6d3c93a0c8..51dd030b3b36 100644 --- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c +++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c @@ -2058,9 +2058,9 @@ static void bl_abort_syn_rcv(struct sock *lsk, struct sk_buff *skb) queue = csk->txq_idx; skb->sk = NULL; - do_abort_syn_rcv(child, lsk); chtls_send_abort_rpl(child, skb, BLOG_SKB_CB(skb)->cdev, CPL_ABORT_NO_RST, queue); + do_abort_syn_rcv(child, lsk); } static int abort_syn_rcv(struct sock *sk, struct sk_buff *skb) @@ -2090,8 +2090,8 @@ static int abort_syn_rcv(struct sock *sk, struct sk_buff *skb) if (!sock_owned_by_user(psk)) { int queue = csk->txq_idx; - do_abort_syn_rcv(sk, psk); chtls_send_abort_rpl(sk, skb, cdev, CPL_ABORT_NO_RST, queue); + do_abort_syn_rcv(sk, psk); } else { skb->sk = sk; BLOG_SKB_CB(skb)->backlog_rcv = bl_abort_syn_rcv; @@ -2135,12 +2135,12 @@ static void chtls_abort_req_rss(struct sock *sk, struct sk_buff *skb) if (sk->sk_state == TCP_SYN_RECV && !abort_syn_rcv(sk, skb)) return; - chtls_release_resources(sk); - chtls_conn_done(sk); } chtls_send_abort_rpl(sk, skb, BLOG_SKB_CB(skb)->cdev, rst_status, queue); + chtls_release_resources(sk); + chtls_conn_done(sk); } static void chtls_abort_rpl_rss(struct sock *sk, struct sk_buff *skb) -- cgit v1.2.3 From ac7996d680d8b4a51bb99bbdcee3dc838b985498 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Thu, 7 Jan 2021 12:39:16 +0000 Subject: octeontx2-af: fix memory leak of lmac and lmac->name Currently the error return paths don't kfree lmac and lmac->name leading to some memory leaks. Fix this by adding two error return paths that kfree these objects Addresses-Coverity: ("Resource leak") Fixes: 1463f382f58d ("octeontx2-af: Add support for CGX link management") Signed-off-by: Colin Ian King Link: https://lore.kernel.org/r/20210107123916.189748-1-colin.king@canonical.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c index 7d0f96290943..1a8f5a039d50 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c @@ -871,8 +871,10 @@ static int cgx_lmac_init(struct cgx *cgx) if (!lmac) return -ENOMEM; lmac->name = kcalloc(1, sizeof("cgx_fwi_xxx_yyy"), GFP_KERNEL); - if (!lmac->name) - return -ENOMEM; + if (!lmac->name) { + err = -ENOMEM; + goto err_lmac_free; + } sprintf(lmac->name, "cgx_fwi_%d_%d", cgx->cgx_id, i); lmac->lmac_id = i; lmac->cgx = cgx; @@ -883,7 +885,7 @@ static int cgx_lmac_init(struct cgx *cgx) CGX_LMAC_FWI + i * 9), cgx_fwi_event_handler, 0, lmac->name, lmac); if (err) - return err; + goto err_irq; /* Enable interrupt */ cgx_write(cgx, lmac->lmac_id, CGXX_CMRX_INT_ENA_W1S, @@ -895,6 +897,12 @@ static int cgx_lmac_init(struct cgx *cgx) } return cgx_lmac_verify_fwi_version(cgx); + +err_irq: + kfree(lmac->name); +err_lmac_free: + kfree(lmac); + return err; } static int cgx_lmac_exit(struct cgx *cgx) -- cgit v1.2.3 From 07e61a979ca4dddb3661f59328b3cd109f6b0070 Mon Sep 17 00:00:00 2001 From: Ido Schimmel Date: Thu, 7 Jan 2021 16:48:21 +0200 Subject: nexthop: Fix off-by-one error in error path A reference was not taken for the current nexthop entry, so do not try to put it in the error path. Fixes: 430a049190de ("nexthop: Add support for nexthop groups") Signed-off-by: Ido Schimmel Reviewed-by: Petr Machata Reviewed-by: David Ahern Signed-off-by: Jakub Kicinski --- net/ipv4/nexthop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c index 5e1b22d4f939..f8035cfa9c20 100644 --- a/net/ipv4/nexthop.c +++ b/net/ipv4/nexthop.c @@ -1459,7 +1459,7 @@ static struct nexthop *nexthop_create_group(struct net *net, return nh; out_no_nh: - for (; i >= 0; --i) + for (i--; i >= 0; --i) nexthop_put(nhg->nh_entries[i].nh); kfree(nhg->spare); -- cgit v1.2.3 From 7b01e53eee6dce7a8a6736e06b99b68cd0cc7a27 Mon Sep 17 00:00:00 2001 From: Ido Schimmel Date: Thu, 7 Jan 2021 16:48:22 +0200 Subject: nexthop: Unlink nexthop group entry in error path In case of error, remove the nexthop group entry from the list to which it was previously added. Fixes: 430a049190de ("nexthop: Add support for nexthop groups") Signed-off-by: Ido Schimmel Reviewed-by: Petr Machata Reviewed-by: David Ahern Signed-off-by: Jakub Kicinski --- net/ipv4/nexthop.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c index f8035cfa9c20..712cdc061cde 100644 --- a/net/ipv4/nexthop.c +++ b/net/ipv4/nexthop.c @@ -1459,8 +1459,10 @@ static struct nexthop *nexthop_create_group(struct net *net, return nh; out_no_nh: - for (i--; i >= 0; --i) + for (i--; i >= 0; --i) { + list_del(&nhg->nh_entries[i].nh_list); nexthop_put(nhg->nh_entries[i].nh); + } kfree(nhg->spare); kfree(nhg); -- cgit v1.2.3 From b19218b27f3477316d296e8bcf4446aaf017aa69 Mon Sep 17 00:00:00 2001 From: Petr Machata Date: Thu, 7 Jan 2021 16:48:23 +0200 Subject: nexthop: Bounce NHA_GATEWAY in FDB nexthop groups The function nh_check_attr_group() is called to validate nexthop groups. The intention of that code seems to have been to bounce all attributes above NHA_GROUP_TYPE except for NHA_FDB. However instead it bounces all these attributes except when NHA_FDB attribute is present--then it accepts them. NHA_FDB validation that takes place before, in rtm_to_nh_config(), already bounces NHA_OIF, NHA_BLACKHOLE, NHA_ENCAP and NHA_ENCAP_TYPE. Yet further back, NHA_GROUPS and NHA_MASTER are bounced unconditionally. But that still leaves NHA_GATEWAY as an attribute that would be accepted in FDB nexthop groups (with no meaning), so long as it keeps the address family as unspecified: # ip nexthop add id 1 fdb via 127.0.0.1 # ip nexthop add id 10 fdb via default group 1 The nexthop code is still relatively new and likely not used very broadly, and the FDB bits are newer still. Even though there is a reproducer out there, it relies on an improbable gateway arguments "via default", "via all" or "via any". Given all this, I believe it is OK to reformulate the condition to do the right thing and bounce NHA_GATEWAY. Fixes: 38428d68719c ("nexthop: support for fdb ecmp nexthops") Signed-off-by: Petr Machata Signed-off-by: Ido Schimmel Reviewed-by: David Ahern Signed-off-by: Jakub Kicinski --- net/ipv4/nexthop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c index 712cdc061cde..e53e43aef785 100644 --- a/net/ipv4/nexthop.c +++ b/net/ipv4/nexthop.c @@ -627,7 +627,7 @@ static int nh_check_attr_group(struct net *net, struct nlattr *tb[], for (i = NHA_GROUP_TYPE + 1; i < __NHA_MAX; ++i) { if (!tb[i]) continue; - if (tb[NHA_FDB]) + if (i == NHA_FDB) continue; NL_SET_ERR_MSG(extack, "No other attributes can be set in nexthop groups"); -- cgit v1.2.3 From a5c9ca76a1c61fb5e4c35de8eb25aa925b03c9e4 Mon Sep 17 00:00:00 2001 From: Ido Schimmel Date: Thu, 7 Jan 2021 16:48:24 +0200 Subject: selftests: fib_nexthops: Fix wrong mausezahn invocation For IPv6 traffic, mausezahn needs to be invoked with '-6'. Otherwise an error is returned: # ip netns exec me mausezahn veth1 -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 -t tcp "dp=1-1023, flags=syn" Failed to set source IPv4 address. Please check if source is set to a valid IPv4 address. Invalid command line parameters! Fixes: 7c741868ceab ("selftests: Add torture tests to nexthop tests") Signed-off-by: Ido Schimmel Reviewed-by: Petr Machata Reviewed-by: David Ahern Signed-off-by: Jakub Kicinski --- tools/testing/selftests/net/fib_nexthops.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/fib_nexthops.sh b/tools/testing/selftests/net/fib_nexthops.sh index eb693a3b7b4a..4c7d33618437 100755 --- a/tools/testing/selftests/net/fib_nexthops.sh +++ b/tools/testing/selftests/net/fib_nexthops.sh @@ -869,7 +869,7 @@ ipv6_torture() pid3=$! ip netns exec me ping -f 2001:db8:101::2 >/dev/null 2>&1 & pid4=$! - ip netns exec me mausezahn veth1 -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 & + ip netns exec me mausezahn -6 veth1 -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 & pid5=$! sleep 300 -- cgit v1.2.3 From 0b9902c1fcc59ba75268386c0420a554f8844168 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Thu, 7 Jan 2021 18:24:40 +0100 Subject: s390/qeth: fix deadlock during recovery When qeth_dev_layer2_store() - holding the discipline_mutex - waits inside qeth_l*_remove_device() for a qeth_do_reset() thread to complete, we can hit a deadlock if qeth_do_reset() concurrently calls qeth_set_online() and thus tries to aquire the discipline_mutex. Move the discipline_mutex locking outside of qeth_set_online() and qeth_set_offline(), and turn the discipline into a parameter so that callers understand the dependency. To fix the deadlock, we can now relax the locking: As already established, qeth_l*_remove_device() waits for qeth_do_reset() to complete. So qeth_do_reset() itself is under no risk of having card->discipline ripped out while it's running, and thus doesn't need to take the discipline_mutex. Fixes: 9dc48ccc68b9 ("qeth: serialize sysfs-triggered device configurations") Signed-off-by: Julian Wiedmann Reviewed-by: Alexandra Winter Signed-off-by: Jakub Kicinski --- drivers/s390/net/qeth_core.h | 3 ++- drivers/s390/net/qeth_core_main.c | 35 ++++++++++++++++++++++------------- drivers/s390/net/qeth_l2_main.c | 7 +++++-- drivers/s390/net/qeth_l3_main.c | 7 +++++-- 4 files changed, 34 insertions(+), 18 deletions(-) diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index 6f5ddc3eab8c..28f637042d44 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -1079,7 +1079,8 @@ struct qeth_card *qeth_get_card_by_busid(char *bus_id); void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads, int clear_start_mask); int qeth_threads_running(struct qeth_card *, unsigned long); -int qeth_set_offline(struct qeth_card *card, bool resetting); +int qeth_set_offline(struct qeth_card *card, const struct qeth_discipline *disc, + bool resetting); int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, int (*reply_cb) diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index f4b60294a969..d45e223fc521 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -5507,12 +5507,12 @@ out: return rc; } -static int qeth_set_online(struct qeth_card *card) +static int qeth_set_online(struct qeth_card *card, + const struct qeth_discipline *disc) { bool carrier_ok; int rc; - mutex_lock(&card->discipline_mutex); mutex_lock(&card->conf_mutex); QETH_CARD_TEXT(card, 2, "setonlin"); @@ -5529,7 +5529,7 @@ static int qeth_set_online(struct qeth_card *card) /* no need for locking / error handling at this early stage: */ qeth_set_real_num_tx_queues(card, qeth_tx_actual_queues(card)); - rc = card->discipline->set_online(card, carrier_ok); + rc = disc->set_online(card, carrier_ok); if (rc) goto err_online; @@ -5537,7 +5537,6 @@ static int qeth_set_online(struct qeth_card *card) kobject_uevent(&card->gdev->dev.kobj, KOBJ_CHANGE); mutex_unlock(&card->conf_mutex); - mutex_unlock(&card->discipline_mutex); return 0; err_online: @@ -5552,15 +5551,14 @@ err_hardsetup: qdio_free(CARD_DDEV(card)); mutex_unlock(&card->conf_mutex); - mutex_unlock(&card->discipline_mutex); return rc; } -int qeth_set_offline(struct qeth_card *card, bool resetting) +int qeth_set_offline(struct qeth_card *card, const struct qeth_discipline *disc, + bool resetting) { int rc, rc2, rc3; - mutex_lock(&card->discipline_mutex); mutex_lock(&card->conf_mutex); QETH_CARD_TEXT(card, 3, "setoffl"); @@ -5581,7 +5579,7 @@ int qeth_set_offline(struct qeth_card *card, bool resetting) cancel_work_sync(&card->rx_mode_work); - card->discipline->set_offline(card); + disc->set_offline(card); qeth_qdio_clear_card(card, 0); qeth_drain_output_queues(card); @@ -5602,16 +5600,19 @@ int qeth_set_offline(struct qeth_card *card, bool resetting) kobject_uevent(&card->gdev->dev.kobj, KOBJ_CHANGE); mutex_unlock(&card->conf_mutex); - mutex_unlock(&card->discipline_mutex); return 0; } EXPORT_SYMBOL_GPL(qeth_set_offline); static int qeth_do_reset(void *data) { + const struct qeth_discipline *disc; struct qeth_card *card = data; int rc; + /* Lock-free, other users will block until we are done. */ + disc = card->discipline; + QETH_CARD_TEXT(card, 2, "recover1"); if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) return 0; @@ -5619,8 +5620,8 @@ static int qeth_do_reset(void *data) dev_warn(&card->gdev->dev, "A recovery process has been started for the device\n"); - qeth_set_offline(card, true); - rc = qeth_set_online(card); + qeth_set_offline(card, disc, true); + rc = qeth_set_online(card, disc); if (!rc) { dev_info(&card->gdev->dev, "Device successfully recovered!\n"); @@ -6647,7 +6648,10 @@ static int qeth_core_set_online(struct ccwgroup_device *gdev) } } - rc = qeth_set_online(card); + mutex_lock(&card->discipline_mutex); + rc = qeth_set_online(card, card->discipline); + mutex_unlock(&card->discipline_mutex); + err: return rc; } @@ -6655,8 +6659,13 @@ err: static int qeth_core_set_offline(struct ccwgroup_device *gdev) { struct qeth_card *card = dev_get_drvdata(&gdev->dev); + int rc; - return qeth_set_offline(card, false); + mutex_lock(&card->discipline_mutex); + rc = qeth_set_offline(card, card->discipline, false); + mutex_unlock(&card->discipline_mutex); + + return rc; } static void qeth_core_shutdown(struct ccwgroup_device *gdev) diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 4ed0fb0705a5..37279b1e29f6 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -2207,8 +2207,11 @@ static void qeth_l2_remove_device(struct ccwgroup_device *gdev) qeth_set_allowed_threads(card, 0, 1); wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); - if (gdev->state == CCWGROUP_ONLINE) - qeth_set_offline(card, false); + if (gdev->state == CCWGROUP_ONLINE) { + mutex_lock(&card->discipline_mutex); + qeth_set_offline(card, card->discipline, false); + mutex_unlock(&card->discipline_mutex); + } cancel_work_sync(&card->close_dev_work); if (card->dev->reg_state == NETREG_REGISTERED) diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index d138ac432d01..8d474179ce98 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -1970,8 +1970,11 @@ static void qeth_l3_remove_device(struct ccwgroup_device *cgdev) qeth_set_allowed_threads(card, 0, 1); wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); - if (cgdev->state == CCWGROUP_ONLINE) - qeth_set_offline(card, false); + if (cgdev->state == CCWGROUP_ONLINE) { + mutex_lock(&card->discipline_mutex); + qeth_set_offline(card, card->discipline, false); + mutex_unlock(&card->discipline_mutex); + } cancel_work_sync(&card->close_dev_work); if (card->dev->reg_state == NETREG_REGISTERED) -- cgit v1.2.3 From b41b554c1ee75070a14c02a88496b1f231c7eacc Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Thu, 7 Jan 2021 18:24:41 +0100 Subject: s390/qeth: fix locking for discipline setup / removal Due to insufficient locking, qeth_core_set_online() and qeth_dev_layer2_store() can run in parallel, both attempting to load & setup the discipline (and stepping on each other toes along the way). A similar race can also occur between qeth_core_remove_device() and qeth_dev_layer2_store(). Access to .discipline is meant to be protected by the discipline_mutex, so add/expand the locking in qeth_core_remove_device() and qeth_core_set_online(). Adjust the locking in qeth_l*_remove_device() accordingly, as it's now handled by the callers in a consistent manner. Based on an initial patch by Ursula Braun. Fixes: 9dc48ccc68b9 ("qeth: serialize sysfs-triggered device configurations") Signed-off-by: Julian Wiedmann Reviewed-by: Alexandra Winter Signed-off-by: Jakub Kicinski --- drivers/s390/net/qeth_core_main.c | 7 +++++-- drivers/s390/net/qeth_l2_main.c | 5 +---- drivers/s390/net/qeth_l3_main.c | 5 +---- 3 files changed, 7 insertions(+), 10 deletions(-) diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index d45e223fc521..cf18d87da41e 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -6585,6 +6585,7 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev) break; default: card->info.layer_enforced = true; + /* It's so early that we don't need the discipline_mutex yet. */ rc = qeth_core_load_discipline(card, enforced_disc); if (rc) goto err_load; @@ -6617,10 +6618,12 @@ static void qeth_core_remove_device(struct ccwgroup_device *gdev) QETH_CARD_TEXT(card, 2, "removedv"); + mutex_lock(&card->discipline_mutex); if (card->discipline) { card->discipline->remove(gdev); qeth_core_free_discipline(card); } + mutex_unlock(&card->discipline_mutex); qeth_free_qdio_queues(card); @@ -6635,6 +6638,7 @@ static int qeth_core_set_online(struct ccwgroup_device *gdev) int rc = 0; enum qeth_discipline_id def_discipline; + mutex_lock(&card->discipline_mutex); if (!card->discipline) { def_discipline = IS_IQD(card) ? QETH_DISCIPLINE_LAYER3 : QETH_DISCIPLINE_LAYER2; @@ -6648,11 +6652,10 @@ static int qeth_core_set_online(struct ccwgroup_device *gdev) } } - mutex_lock(&card->discipline_mutex); rc = qeth_set_online(card, card->discipline); - mutex_unlock(&card->discipline_mutex); err: + mutex_unlock(&card->discipline_mutex); return rc; } diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 37279b1e29f6..4254caf1d9b6 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -2207,11 +2207,8 @@ static void qeth_l2_remove_device(struct ccwgroup_device *gdev) qeth_set_allowed_threads(card, 0, 1); wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); - if (gdev->state == CCWGROUP_ONLINE) { - mutex_lock(&card->discipline_mutex); + if (gdev->state == CCWGROUP_ONLINE) qeth_set_offline(card, card->discipline, false); - mutex_unlock(&card->discipline_mutex); - } cancel_work_sync(&card->close_dev_work); if (card->dev->reg_state == NETREG_REGISTERED) diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 8d474179ce98..6970597bc885 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -1970,11 +1970,8 @@ static void qeth_l3_remove_device(struct ccwgroup_device *cgdev) qeth_set_allowed_threads(card, 0, 1); wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); - if (cgdev->state == CCWGROUP_ONLINE) { - mutex_lock(&card->discipline_mutex); + if (cgdev->state == CCWGROUP_ONLINE) qeth_set_offline(card, card->discipline, false); - mutex_unlock(&card->discipline_mutex); - } cancel_work_sync(&card->close_dev_work); if (card->dev->reg_state == NETREG_REGISTERED) -- cgit v1.2.3 From f9c4845385c8f6631ebd5dddfb019ea7a285fba4 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Thu, 7 Jan 2021 18:24:42 +0100 Subject: s390/qeth: fix L2 header access in qeth_l3_osa_features_check() ip_finish_output_gso() may call .ndo_features_check() even before the skb has a L2 header. This conflicts with qeth_get_ip_version()'s attempt to inspect the L2 header via vlan_eth_hdr(). Switch to vlan_get_protocol(), as already used further down in the common qeth_features_check() path. Fixes: f13ade199391 ("s390/qeth: run non-offload L3 traffic over common xmit path") Signed-off-by: Julian Wiedmann Signed-off-by: Jakub Kicinski --- drivers/s390/net/qeth_l3_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 6970597bc885..4c2cae7ae9a7 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -1813,7 +1813,7 @@ static netdev_features_t qeth_l3_osa_features_check(struct sk_buff *skb, struct net_device *dev, netdev_features_t features) { - if (qeth_get_ip_version(skb) != 4) + if (vlan_get_protocol(skb) != htons(ETH_P_IP)) features &= ~NETIF_F_HW_VLAN_CTAG_TX; return qeth_features_check(skb, dev, features); } -- cgit v1.2.3 From 3545454c7801e391b0d966f82c98614d45394770 Mon Sep 17 00:00:00 2001 From: Aleksander Jan Bajkowski Date: Thu, 7 Jan 2021 20:58:18 +0100 Subject: net: dsa: lantiq_gswip: Exclude RMII from modes that report 1 GbE Exclude RMII from modes that report 1 GbE support. Reduced MII supports up to 100 MbE. Fixes: 14fceff4771e ("net: dsa: Add Lantiq / Intel DSA driver for vrx200") Signed-off-by: Aleksander Jan Bajkowski Reviewed-by: Florian Fainelli Link: https://lore.kernel.org/r/20210107195818.3878-1-olek2@wp.pl Signed-off-by: Jakub Kicinski --- drivers/net/dsa/lantiq_gswip.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c index 4b36d89bec06..662e68a0e7e6 100644 --- a/drivers/net/dsa/lantiq_gswip.c +++ b/drivers/net/dsa/lantiq_gswip.c @@ -1436,11 +1436,12 @@ static void gswip_phylink_validate(struct dsa_switch *ds, int port, phylink_set(mask, Pause); phylink_set(mask, Asym_Pause); - /* With the exclusion of MII and Reverse MII, we support Gigabit, - * including Half duplex + /* With the exclusion of MII, Reverse MII and Reduced MII, we + * support Gigabit, including Half duplex */ if (state->interface != PHY_INTERFACE_MODE_MII && - state->interface != PHY_INTERFACE_MODE_REVMII) { + state->interface != PHY_INTERFACE_MODE_REVMII && + state->interface != PHY_INTERFACE_MODE_RMII) { phylink_set(mask, 1000baseT_Full); phylink_set(mask, 1000baseT_Half); } -- cgit v1.2.3