From 78f94dc7b10d98cf4cf8498d98581500d910c6b7 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Fri, 4 Nov 2011 09:14:58 +0000 Subject: tg3: Fix APE mutex init and use APE mutex register blocks are shared by all ports of multiport devices. For some mutexing purposes, each function is assigned their own register. For other cases, each function is assigned its own request and grant bits of a single register. For the latter cases, the tg3 driver is incorrectly allowing each function to use the same set of grant / request bits. This patch fixes the code so that each function uses the appropriate bitset. Signed-off-by: Matt Carlson Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 44 +++++++++++++++++++------------------ drivers/net/ethernet/broadcom/tg3.h | 10 ++++++--- 2 files changed, 30 insertions(+), 24 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 161cbbb4814a..35901630a65c 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -628,19 +628,23 @@ static void tg3_ape_lock_init(struct tg3 *tp) regbase = TG3_APE_PER_LOCK_GRANT; /* Make sure the driver hasn't any stale locks. */ - for (i = 0; i < 8; i++) { - if (i == TG3_APE_LOCK_GPIO) - continue; - tg3_ape_write32(tp, regbase + 4 * i, APE_LOCK_GRANT_DRIVER); + for (i = TG3_APE_LOCK_PHY0; i <= TG3_APE_LOCK_GPIO; i++) { + switch (i) { + case TG3_APE_LOCK_PHY0: + case TG3_APE_LOCK_PHY1: + case TG3_APE_LOCK_PHY2: + case TG3_APE_LOCK_PHY3: + bit = APE_LOCK_GRANT_DRIVER; + break; + default: + if (!tp->pci_fn) + bit = APE_LOCK_GRANT_DRIVER; + else + bit = 1 << tp->pci_fn; + } + tg3_ape_write32(tp, regbase + 4 * i, bit); } - /* Clear the correct bit of the GPIO lock too. */ - if (!tp->pci_fn) - bit = APE_LOCK_GRANT_DRIVER; - else - bit = 1 << tp->pci_fn; - - tg3_ape_write32(tp, regbase + 4 * TG3_APE_LOCK_GPIO, bit); } static int tg3_ape_lock(struct tg3 *tp, int locknum) @@ -658,6 +662,10 @@ static int tg3_ape_lock(struct tg3 *tp, int locknum) return 0; case TG3_APE_LOCK_GRC: case TG3_APE_LOCK_MEM: + if (!tp->pci_fn) + bit = APE_LOCK_REQ_DRIVER; + else + bit = 1 << tp->pci_fn; break; default: return -EINVAL; @@ -673,11 +681,6 @@ static int tg3_ape_lock(struct tg3 *tp, int locknum) off = 4 * locknum; - if (locknum != TG3_APE_LOCK_GPIO || !tp->pci_fn) - bit = APE_LOCK_REQ_DRIVER; - else - bit = 1 << tp->pci_fn; - tg3_ape_write32(tp, req + off, bit); /* Wait for up to 1 millisecond to acquire lock. */ @@ -710,6 +713,10 @@ static void tg3_ape_unlock(struct tg3 *tp, int locknum) return; case TG3_APE_LOCK_GRC: case TG3_APE_LOCK_MEM: + if (!tp->pci_fn) + bit = APE_LOCK_GRANT_DRIVER; + else + bit = 1 << tp->pci_fn; break; default: return; @@ -720,11 +727,6 @@ static void tg3_ape_unlock(struct tg3 *tp, int locknum) else gnt = TG3_APE_PER_LOCK_GRANT; - if (locknum != TG3_APE_LOCK_GPIO || !tp->pci_fn) - bit = APE_LOCK_GRANT_DRIVER; - else - bit = 1 << tp->pci_fn; - tg3_ape_write32(tp, gnt + 4 * locknum, bit); } diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h index f32f288134c7..03fab8cadd86 100644 --- a/drivers/net/ethernet/broadcom/tg3.h +++ b/drivers/net/ethernet/broadcom/tg3.h @@ -2344,9 +2344,13 @@ #define APE_PER_LOCK_GRANT_DRIVER 0x00001000 /* APE convenience enumerations. */ -#define TG3_APE_LOCK_GRC 1 -#define TG3_APE_LOCK_MEM 4 -#define TG3_APE_LOCK_GPIO 7 +#define TG3_APE_LOCK_PHY0 0 +#define TG3_APE_LOCK_GRC 1 +#define TG3_APE_LOCK_PHY1 2 +#define TG3_APE_LOCK_PHY2 3 +#define TG3_APE_LOCK_MEM 4 +#define TG3_APE_LOCK_PHY3 5 +#define TG3_APE_LOCK_GPIO 7 #define TG3_EEPROM_SB_F1R2_MBA_OFF 0x10 -- cgit v1.2.3 From b9e454826f22e17d1945bd282834c87aef8d0f95 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Fri, 4 Nov 2011 09:14:59 +0000 Subject: tg3: Fix 4k tx bd segmentation code The new 4k tx bd segmentation code had a bug in the error cleanup path. If the driver did not map all the physical fragments, the abort path would wind up advancing the producer index beyond the point where the setup code stopped. This would ultimately turn into a tx recovery error where the driver would expect the skb pointer to be set when it isn't. This patch fixes the problem, and then makes the code a little easier to understand. Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 47 +++++++++++++++++++------------------ 1 file changed, 24 insertions(+), 23 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 35901630a65c..507b73b979fe 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -6444,31 +6444,26 @@ static bool tg3_tx_frag_set(struct tg3_napi *tnapi, u32 *entry, u32 *budget, hwbug = 1; if (tg3_flag(tp, 4K_FIFO_LIMIT)) { + u32 prvidx = *entry; u32 tmp_flag = flags & ~TXD_FLAG_END; - while (len > TG3_TX_BD_DMA_MAX) { + while (len > TG3_TX_BD_DMA_MAX && *budget) { u32 frag_len = TG3_TX_BD_DMA_MAX; len -= TG3_TX_BD_DMA_MAX; - if (len) { - tnapi->tx_buffers[*entry].fragmented = true; - /* Avoid the 8byte DMA problem */ - if (len <= 8) { - len += TG3_TX_BD_DMA_MAX / 2; - frag_len = TG3_TX_BD_DMA_MAX / 2; - } - } else - tmp_flag = flags; - - if (*budget) { - tg3_tx_set_bd(&tnapi->tx_ring[*entry], map, - frag_len, tmp_flag, mss, vlan); - (*budget)--; - *entry = NEXT_TX(*entry); - } else { - hwbug = 1; - break; + /* Avoid the 8byte DMA problem */ + if (len <= 8) { + len += TG3_TX_BD_DMA_MAX / 2; + frag_len = TG3_TX_BD_DMA_MAX / 2; } + tnapi->tx_buffers[*entry].fragmented = true; + + tg3_tx_set_bd(&tnapi->tx_ring[*entry], map, + frag_len, tmp_flag, mss, vlan); + *budget -= 1; + prvidx = *entry; + *entry = NEXT_TX(*entry); + map += frag_len; } @@ -6476,10 +6471,11 @@ static bool tg3_tx_frag_set(struct tg3_napi *tnapi, u32 *entry, u32 *budget, if (*budget) { tg3_tx_set_bd(&tnapi->tx_ring[*entry], map, len, flags, mss, vlan); - (*budget)--; + *budget -= 1; *entry = NEXT_TX(*entry); } else { hwbug = 1; + tnapi->tx_buffers[prvidx].fragmented = false; } } } else { @@ -6561,6 +6557,8 @@ static int tigon3_dma_hwbug_workaround(struct tg3_napi *tnapi, dev_kfree_skb(new_skb); ret = -1; } else { + u32 save_entry = *entry; + base_flags |= TXD_FLAG_END; tnapi->tx_buffers[*entry].skb = new_skb; @@ -6570,7 +6568,7 @@ static int tigon3_dma_hwbug_workaround(struct tg3_napi *tnapi, if (tg3_tx_frag_set(tnapi, entry, budget, new_addr, new_skb->len, base_flags, mss, vlan)) { - tg3_tx_skb_unmap(tnapi, *entry, 0); + tg3_tx_skb_unmap(tnapi, save_entry, 0); dev_kfree_skb(new_skb); ret = -1; } @@ -6786,11 +6784,14 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev) if (dma_mapping_error(&tp->pdev->dev, mapping)) goto dma_error; - if (tg3_tx_frag_set(tnapi, &entry, &budget, mapping, + if (!budget || + tg3_tx_frag_set(tnapi, &entry, &budget, mapping, len, base_flags | ((i == last) ? TXD_FLAG_END : 0), - tmp_mss, vlan)) + tmp_mss, vlan)) { would_hit_hwbug = 1; + break; + } } } -- cgit v1.2.3 From ba1142e4fb291c7bf124d93596351dca8d226a0f Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Fri, 4 Nov 2011 09:15:00 +0000 Subject: tg3: Fix 4k skb error recovery path On the error recovery resource unwind path, it is possible for the driver to attempt to unmap a fragment that hadn't been mapped. This patch fixes the problem by correcting the "last" parameter supplied. Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 507b73b979fe..3a7517910eed 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -6507,7 +6507,7 @@ static void tg3_tx_skb_unmap(struct tg3_napi *tnapi, u32 entry, int last) txb = &tnapi->tx_buffers[entry]; } - for (i = 0; i < last; i++) { + for (i = 0; i <= last; i++) { const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; entry = NEXT_TX(entry); @@ -6568,7 +6568,7 @@ static int tigon3_dma_hwbug_workaround(struct tg3_napi *tnapi, if (tg3_tx_frag_set(tnapi, entry, budget, new_addr, new_skb->len, base_flags, mss, vlan)) { - tg3_tx_skb_unmap(tnapi, save_entry, 0); + tg3_tx_skb_unmap(tnapi, save_entry, -1); dev_kfree_skb(new_skb); ret = -1; } @@ -6758,11 +6758,10 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev) if (tg3_tx_frag_set(tnapi, &entry, &budget, mapping, len, base_flags | ((skb_shinfo(skb)->nr_frags == 0) ? TXD_FLAG_END : 0), - mss, vlan)) + mss, vlan)) { would_hit_hwbug = 1; - /* Now loop through additional data fragments, and queue them. */ - if (skb_shinfo(skb)->nr_frags > 0) { + } else if (skb_shinfo(skb)->nr_frags > 0) { u32 tmp_mss = mss; if (!tg3_flag(tp, HW_TSO_1) && @@ -6831,7 +6830,7 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_OK; dma_error: - tg3_tx_skb_unmap(tnapi, tnapi->tx_prod, i); + tg3_tx_skb_unmap(tnapi, tnapi->tx_prod, --i); tnapi->tx_buffers[tnapi->tx_prod].skb = NULL; drop: dev_kfree_skb(skb); @@ -7284,7 +7283,8 @@ static void tg3_free_rings(struct tg3 *tp) if (!skb) continue; - tg3_tx_skb_unmap(tnapi, i, skb_shinfo(skb)->nr_frags); + tg3_tx_skb_unmap(tnapi, i, + skb_shinfo(skb)->nr_frags - 1); dev_kfree_skb_any(skb); } @@ -11523,7 +11523,7 @@ static int tg3_run_loopback(struct tg3 *tp, u32 pktsz, bool tso_loopback) break; } - tg3_tx_skb_unmap(tnapi, tnapi->tx_prod - 1, 0); + tg3_tx_skb_unmap(tnapi, tnapi->tx_prod - 1, -1); dev_kfree_skb(skb); if (tx_idx != tnapi->tx_prod) -- cgit v1.2.3 From 5bc09186deba2a016b60aa3923fc0e42838ce877 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Fri, 4 Nov 2011 09:15:01 +0000 Subject: tg3: Fix irq alloc error cleanup path This patch fixes a bug where the irq error cleanup path did not free all the resources it allocated. Signed-off-by: Matt Carlson Signed-off-by: Ben Li Signed-off-by: Akinobu Mita Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 3a7517910eed..0413e1e85641 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -9677,15 +9677,14 @@ static int tg3_open(struct net_device *dev) struct tg3_napi *tnapi = &tp->napi[i]; err = tg3_request_irq(tp, i); if (err) { - for (i--; i >= 0; i--) + for (i--; i >= 0; i--) { + tnapi = &tp->napi[i]; free_irq(tnapi->irq_vec, tnapi); - break; + } + goto err_out2; } } - if (err) - goto err_out2; - tg3_full_lock(tp, 0); err = tg3_init_hw(tp, 1); -- cgit v1.2.3 From 9dc5e342703948ea7b086d063c85c0e79dac8149 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Fri, 4 Nov 2011 09:15:02 +0000 Subject: tg3: Obtain PCI function number from device This patch adds code to attempt to obtain the PCI function number from the device rather than accept the number handed by the kernel. In pass-through scenarios, the function number handed by the kernel may not reflect the true function of the device. Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 30 ++++++++++++++++++++++++------ drivers/net/ethernet/broadcom/tg3.h | 9 +++++++++ 2 files changed, 33 insertions(+), 6 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 0413e1e85641..6973d01ae85a 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -14230,12 +14230,30 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) val = tr32(MEMARB_MODE); tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE); - if (tg3_flag(tp, PCIX_MODE)) { - pci_read_config_dword(tp->pdev, - tp->pcix_cap + PCI_X_STATUS, &val); - tp->pci_fn = val & 0x7; - } else { - tp->pci_fn = PCI_FUNC(tp->pdev->devfn) & 3; + tp->pci_fn = PCI_FUNC(tp->pdev->devfn) & 3; + if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 || + tg3_flag(tp, 5780_CLASS)) { + if (tg3_flag(tp, PCIX_MODE)) { + pci_read_config_dword(tp->pdev, + tp->pcix_cap + PCI_X_STATUS, + &val); + tp->pci_fn = val & 0x7; + } + } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) { + tg3_read_mem(tp, NIC_SRAM_CPMU_STATUS, &val); + if ((val & NIC_SRAM_CPMUSTAT_SIG_MSK) == + NIC_SRAM_CPMUSTAT_SIG) { + tp->pci_fn = val & TG3_CPMU_STATUS_FMSK_5717; + tp->pci_fn = tp->pci_fn ? 1 : 0; + } + } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 || + GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5720) { + tg3_read_mem(tp, NIC_SRAM_CPMU_STATUS, &val); + if ((val & NIC_SRAM_CPMUSTAT_SIG_MSK) == + NIC_SRAM_CPMUSTAT_SIG) { + tp->pci_fn = (val & TG3_CPMU_STATUS_FMSK_5719) >> + TG3_CPMU_STATUS_FSHFT_5719; + } } /* Get eeprom hw config before calling tg3_set_power_state(). diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h index 03fab8cadd86..acfa265733ad 100644 --- a/drivers/net/ethernet/broadcom/tg3.h +++ b/drivers/net/ethernet/broadcom/tg3.h @@ -1095,6 +1095,11 @@ #define TG3_CPMU_CLCK_ORIDE 0x00003624 #define CPMU_CLCK_ORIDE_MAC_ORIDE_EN 0x80000000 +#define TG3_CPMU_STATUS 0x0000362c +#define TG3_CPMU_STATUS_FMSK_5717 0x20000000 +#define TG3_CPMU_STATUS_FMSK_5719 0xc0000000 +#define TG3_CPMU_STATUS_FSHFT_5719 30 + #define TG3_CPMU_CLCK_STAT 0x00003630 #define CPMU_CLCK_STAT_MAC_CLCK_MASK 0x001f0000 #define CPMU_CLCK_STAT_MAC_CLCK_62_5 0x00000000 @@ -2128,6 +2133,10 @@ #define NIC_SRAM_RGMII_EXT_IBND_RX_EN 0x00000008 #define NIC_SRAM_RGMII_EXT_IBND_TX_EN 0x00000010 +#define NIC_SRAM_CPMU_STATUS 0x00000e00 +#define NIC_SRAM_CPMUSTAT_SIG 0x0000362c +#define NIC_SRAM_CPMUSTAT_SIG_MSK 0x0000ffff + #define NIC_SRAM_RX_MINI_BUFFER_DESC 0x00001000 #define NIC_SRAM_DMA_DESC_POOL_BASE 0x00002000 -- cgit v1.2.3 From db21997379906fe7657d360674e1106d80b020a4 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Fri, 4 Nov 2011 09:15:03 +0000 Subject: tg3: Schedule at most one tg3_reset_task run It is possible for multiple threads in the tg3 driver to each attempt to schedule a run of tg3_reset_task(). The multiple tg3_reset_task executions could all wind up on the same queue (and execute serially) or wind up on the queues of another processor (which could execute in parallel). Either scenario is not what was truly desired. This patch adds a new flag, TG3_FLAG_RESET_TASK_PENDING, and uses it to determine whether or not to schedule another run of tg3_reset_task(). With the new flag comes two new functions to facilitate scheduling and descheduling of tg3_reset_task(). Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 33 ++++++++++++++++++++++++--------- drivers/net/ethernet/broadcom/tg3.h | 1 + 2 files changed, 25 insertions(+), 9 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 6973d01ae85a..d4a85b795344 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -5929,6 +5929,18 @@ static int tg3_poll_work(struct tg3_napi *tnapi, int work_done, int budget) return work_done; } +static inline void tg3_reset_task_schedule(struct tg3 *tp) +{ + if (!test_and_set_bit(TG3_FLAG_RESET_TASK_PENDING, tp->tg3_flags)) + schedule_work(&tp->reset_task); +} + +static inline void tg3_reset_task_cancel(struct tg3 *tp) +{ + cancel_work_sync(&tp->reset_task); + tg3_flag_clear(tp, RESET_TASK_PENDING); +} + static int tg3_poll_msix(struct napi_struct *napi, int budget) { struct tg3_napi *tnapi = container_of(napi, struct tg3_napi, napi); @@ -5969,7 +5981,7 @@ static int tg3_poll_msix(struct napi_struct *napi, int budget) tx_recovery: /* work_done is guaranteed to be less than budget. */ napi_complete(napi); - schedule_work(&tp->reset_task); + tg3_reset_task_schedule(tp); return work_done; } @@ -6004,7 +6016,7 @@ static void tg3_process_error(struct tg3 *tp) tg3_dump_state(tp); tg3_flag_set(tp, ERROR_PROCESSED); - schedule_work(&tp->reset_task); + tg3_reset_task_schedule(tp); } static int tg3_poll(struct napi_struct *napi, int budget) @@ -6051,7 +6063,7 @@ static int tg3_poll(struct napi_struct *napi, int budget) tx_recovery: /* work_done is guaranteed to be less than budget. */ napi_complete(napi); - schedule_work(&tp->reset_task); + tg3_reset_task_schedule(tp); return work_done; } @@ -6345,6 +6357,7 @@ static void tg3_reset_task(struct work_struct *work) tg3_full_lock(tp, 0); if (!netif_running(tp->dev)) { + tg3_flag_clear(tp, RESET_TASK_PENDING); tg3_full_unlock(tp); return; } @@ -6382,6 +6395,8 @@ out: if (!err) tg3_phy_start(tp); + + tg3_flag_clear(tp, RESET_TASK_PENDING); } static void tg3_tx_timeout(struct net_device *dev) @@ -6393,7 +6408,7 @@ static void tg3_tx_timeout(struct net_device *dev) tg3_dump_state(tp); } - schedule_work(&tp->reset_task); + tg3_reset_task_schedule(tp); } /* Test for DMA buffers crossing any 4GB boundaries: 4G, 8G, etc */ @@ -9228,7 +9243,7 @@ static void tg3_timer(unsigned long __opaque) if (!(tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) { tg3_flag_set(tp, RESTART_TIMER); spin_unlock(&tp->lock); - schedule_work(&tp->reset_task); + tg3_reset_task_schedule(tp); return; } } @@ -9785,7 +9800,7 @@ static int tg3_close(struct net_device *dev) struct tg3 *tp = netdev_priv(dev); tg3_napi_disable(tp); - cancel_work_sync(&tp->reset_task); + tg3_reset_task_cancel(tp); netif_tx_stop_all_queues(dev); @@ -15685,7 +15700,7 @@ static void __devexit tg3_remove_one(struct pci_dev *pdev) if (tp->fw) release_firmware(tp->fw); - cancel_work_sync(&tp->reset_task); + tg3_reset_task_cancel(tp); if (tg3_flag(tp, USE_PHYLIB)) { tg3_phy_fini(tp); @@ -15719,7 +15734,7 @@ static int tg3_suspend(struct device *device) if (!netif_running(dev)) return 0; - flush_work_sync(&tp->reset_task); + tg3_reset_task_cancel(tp); tg3_phy_stop(tp); tg3_netif_stop(tp); @@ -15835,7 +15850,7 @@ static pci_ers_result_t tg3_io_error_detected(struct pci_dev *pdev, tg3_flag_clear(tp, RESTART_TIMER); /* Want to make sure that the reset task doesn't run */ - cancel_work_sync(&tp->reset_task); + tg3_reset_task_cancel(tp); tg3_flag_clear(tp, TX_RECOVERY_PENDING); tg3_flag_clear(tp, RESTART_TIMER); diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h index acfa265733ad..610fd84cc60f 100644 --- a/drivers/net/ethernet/broadcom/tg3.h +++ b/drivers/net/ethernet/broadcom/tg3.h @@ -2922,6 +2922,7 @@ enum TG3_FLAGS { TG3_FLAG_APE_HAS_NCSI, TG3_FLAG_5717_PLUS, TG3_FLAG_4K_FIFO_LIMIT, + TG3_FLAG_RESET_TASK_PENDING, /* Add new flags before this comment and TG3_FLAG_NUMBER_OF_FLAGS */ TG3_FLAG_NUMBER_OF_FLAGS, /* Last entry in enum TG3_FLAGS */ -- cgit v1.2.3 From 5b1906241905d9bd1abe920854b3d43c2b9c85e1 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Fri, 4 Nov 2011 09:15:04 +0000 Subject: tg3: Eliminate timer race with reset_task During shutdown, it is impossible to reliably disable the timer and reset_task threads. Each thread can schedule the other, which leads to shutdown code that chases its tail. To fix the problem, this patch removes the ability of tg3_reset_task to schedule a new timer thread. To support this change, tg3_timer no longer terminates itself, but rather goes into a polling mode. Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 14 ++------------ drivers/net/ethernet/broadcom/tg3.h | 1 - 2 files changed, 2 insertions(+), 13 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index d4a85b795344..cc7349fd7fcd 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -6352,7 +6352,6 @@ static void tg3_reset_task(struct work_struct *work) { struct tg3 *tp = container_of(work, struct tg3, reset_task); int err; - unsigned int restart_timer; tg3_full_lock(tp, 0); @@ -6370,9 +6369,6 @@ static void tg3_reset_task(struct work_struct *work) tg3_full_lock(tp, 1); - restart_timer = tg3_flag(tp, RESTART_TIMER); - tg3_flag_clear(tp, RESTART_TIMER); - if (tg3_flag(tp, TX_RECOVERY_PENDING)) { tp->write32_tx_mbox = tg3_write32_tx_mbox; tp->write32_rx_mbox = tg3_write_flush_reg32; @@ -6387,9 +6383,6 @@ static void tg3_reset_task(struct work_struct *work) tg3_netif_start(tp); - if (restart_timer) - mod_timer(&tp->timer, jiffies + 1); - out: tg3_full_unlock(tp); @@ -9218,7 +9211,7 @@ static void tg3_timer(unsigned long __opaque) { struct tg3 *tp = (struct tg3 *) __opaque; - if (tp->irq_sync) + if (tp->irq_sync || tg3_flag(tp, RESET_TASK_PENDING)) goto restart_timer; spin_lock(&tp->lock); @@ -9241,10 +9234,9 @@ static void tg3_timer(unsigned long __opaque) } if (!(tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) { - tg3_flag_set(tp, RESTART_TIMER); spin_unlock(&tp->lock); tg3_reset_task_schedule(tp); - return; + goto restart_timer; } } @@ -15847,12 +15839,10 @@ static pci_ers_result_t tg3_io_error_detected(struct pci_dev *pdev, tg3_netif_stop(tp); del_timer_sync(&tp->timer); - tg3_flag_clear(tp, RESTART_TIMER); /* Want to make sure that the reset task doesn't run */ tg3_reset_task_cancel(tp); tg3_flag_clear(tp, TX_RECOVERY_PENDING); - tg3_flag_clear(tp, RESTART_TIMER); netif_device_detach(netdev); diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h index 610fd84cc60f..94b4bd049a33 100644 --- a/drivers/net/ethernet/broadcom/tg3.h +++ b/drivers/net/ethernet/broadcom/tg3.h @@ -2879,7 +2879,6 @@ enum TG3_FLAGS { TG3_FLAG_JUMBO_CAPABLE, TG3_FLAG_CHIP_RESETTING, TG3_FLAG_INIT_COMPLETE, - TG3_FLAG_RESTART_TIMER, TG3_FLAG_TSO_BUG, TG3_FLAG_IS_5788, TG3_FLAG_MAX_RXPEND_64, -- cgit v1.2.3 From 5ae7fa06bb90421bc63f1f1e56ab241b49bc7b91 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Fri, 4 Nov 2011 09:15:05 +0000 Subject: tg3: Update version to 3.121 This patch updates the tg3 version to 3.121. Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index cc7349fd7fcd..bf4074167d6a 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -89,10 +89,10 @@ static inline void _tg3_flag_clear(enum TG3_FLAGS flag, unsigned long *bits) #define DRV_MODULE_NAME "tg3" #define TG3_MAJ_NUM 3 -#define TG3_MIN_NUM 120 +#define TG3_MIN_NUM 121 #define DRV_MODULE_VERSION \ __stringify(TG3_MAJ_NUM) "." __stringify(TG3_MIN_NUM) -#define DRV_MODULE_RELDATE "August 18, 2011" +#define DRV_MODULE_RELDATE "November 2, 2011" #define RESET_KIND_SHUTDOWN 0 #define RESET_KIND_INIT 1 -- cgit v1.2.3 From 433aee04a447fb2e769c4570f327d9c2a956117b Mon Sep 17 00:00:00 2001 From: Jeff Kirsher Date: Wed, 2 Nov 2011 00:30:52 +0000 Subject: i825xx:xscale:8390:freescale: Fix Kconfig dependancies i825xx and xscale are "sub" Kconfigs to NET_VENDOR_INTEL, so NET_VENDOR_INTEL should contain ALL the dependencies of the "sub" Kconfigs. Same with 8390 is a "sub" Kconfig to NET_VENDOR_NATSEMI, so NET_VENDOR_NATSEMI needs to contains ALL the dependencies. Freescale Kconfig only had fs_enet as a sub Kconfig, and already contained the needed dependencies, just cleaned up the dependencies. Reported-by: Geert Uytterhoeven Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/Kconfig | 3 +-- drivers/net/ethernet/intel/Kconfig | 6 +++++- drivers/net/ethernet/natsemi/Kconfig | 5 ++++- 3 files changed, 10 insertions(+), 4 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/freescale/Kconfig b/drivers/net/ethernet/freescale/Kconfig index 1cf671643d1f..c520cfd3b298 100644 --- a/drivers/net/ethernet/freescale/Kconfig +++ b/drivers/net/ethernet/freescale/Kconfig @@ -7,8 +7,7 @@ config NET_VENDOR_FREESCALE default y depends on FSL_SOC || QUICC_ENGINE || CPM1 || CPM2 || PPC_MPC512x || \ M523x || M527x || M5272 || M528x || M520x || M532x || \ - ARCH_MXC || ARCH_MXS || \ - (PPC_MPC52xx && PPC_BESTCOMM) + ARCH_MXC || ARCH_MXS || (PPC_MPC52xx && PPC_BESTCOMM) ---help--- If you have a network (Ethernet) card belonging to this class, say Y and read the Ethernet-HOWTO, available from diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig index 61029dc7fa6f..76213162fbe3 100644 --- a/drivers/net/ethernet/intel/Kconfig +++ b/drivers/net/ethernet/intel/Kconfig @@ -5,7 +5,11 @@ config NET_VENDOR_INTEL bool "Intel devices" default y - depends on PCI || PCI_MSI + depends on PCI || PCI_MSI || ISA || ISA_DMA_API || ARM || \ + ARCH_ACORN || MCA || MCA_LEGACY || SNI_RM || SUN3 || \ + GSC || BVME6000 || MVME16x || ARCH_ENP2611 || \ + (ARM && ARCH_IXP4XX && IXP4XX_NPE && IXP4XX_QMGR) || \ + EXPERIMENTAL ---help--- If you have a network (Ethernet) card belonging to this class, say Y and read the Ethernet-HOWTO, available from diff --git a/drivers/net/ethernet/natsemi/Kconfig b/drivers/net/ethernet/natsemi/Kconfig index 4a6b9fd073b6..eb836f770f50 100644 --- a/drivers/net/ethernet/natsemi/Kconfig +++ b/drivers/net/ethernet/natsemi/Kconfig @@ -5,7 +5,10 @@ config NET_VENDOR_NATSEMI bool "National Semi-conductor devices" default y - depends on MCA || MAC || MACH_JAZZ || PCI || XTENSA_PLATFORM_XT2000 + depends on AMIGA_PCMCIA || ARM || EISA || EXPERIMENTAL || H8300 || \ + ISA || M32R || MAC || MACH_JAZZ || MACH_TX49XX || MCA || \ + MCA_LEGACY || MIPS || PCI || PCMCIA || SUPERH || \ + XTENSA_PLATFORM_XT2000 || ZORRO ---help--- If you have a network (Ethernet) card belonging to this class, say Y and read the Ethernet-HOWTO, available from -- cgit v1.2.3 From 27d240fdae2808d727ad9ce48ec029731a457524 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Fri, 4 Nov 2011 12:17:17 +0000 Subject: sky2: fix regression on Yukon Optima Changes to support other Optima types, introduced an accidental regression that caused 88E8059 to come up in 10Mbit/sec. The Yukon Optima supports a reverse auto-negotiation feature that was incorrectly setup, and not needed. The feature could be used to allow wake-on-lan at higher speeds. But doing it correctly would require other changes to initialization. Reported-by: Pavel Mateja Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/sky2.c | 11 ----------- 1 file changed, 11 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c index cbd026f3bc57..fdc6c394c683 100644 --- a/drivers/net/ethernet/marvell/sky2.c +++ b/drivers/net/ethernet/marvell/sky2.c @@ -366,17 +366,6 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port) gm_phy_write(hw, port, PHY_MARV_FE_SPEC_2, spec); } } else { - if (hw->chip_id >= CHIP_ID_YUKON_OPT) { - u16 ctrl2 = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL_2); - - /* enable PHY Reverse Auto-Negotiation */ - ctrl2 |= 1u << 13; - - /* Write PHY changes (SW-reset must follow) */ - gm_phy_write(hw, port, PHY_MARV_EXT_CTRL_2, ctrl2); - } - - /* disable energy detect */ ctrl &= ~PHY_M_PC_EN_DET_MSK; -- cgit v1.2.3 From 012641082b34433dac3cbb452e0a6ceccfd4643f Mon Sep 17 00:00:00 2001 From: "Rose, Gregory V" Date: Mon, 7 Nov 2011 07:44:17 +0000 Subject: ixgbe: Fix compile for kernel without CONFIG_PCI_IOV defined Fix compiler errors and warnings with CONFIG_PCI_IOV defined and not defined. Signed-off-by: Greg Rose Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 2 ++ drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.h | 4 ++-- 2 files changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c index db95731863d7..00fcd39ad666 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c @@ -442,12 +442,14 @@ static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter, int ixgbe_check_vf_assignment(struct ixgbe_adapter *adapter) { +#ifdef CONFIG_PCI_IOV int i; for (i = 0; i < adapter->num_vfs; i++) { if (adapter->vfinfo[i].vfdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) return true; } +#endif return false; } diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.h index 4a5d8897faab..df04f1a3857c 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.h @@ -42,11 +42,11 @@ int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting); int ixgbe_ndo_get_vf_config(struct net_device *netdev, int vf, struct ifla_vf_info *ivi); void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter); -#ifdef CONFIG_PCI_IOV void ixgbe_disable_sriov(struct ixgbe_adapter *adapter); +int ixgbe_check_vf_assignment(struct ixgbe_adapter *adapter); +#ifdef CONFIG_PCI_IOV void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, const struct ixgbe_info *ii); -int ixgbe_check_vf_assignment(struct ixgbe_adapter *adapter); #endif -- cgit v1.2.3 From f9c4082df59e43c6667db197a4fb3eb3286f3fc1 Mon Sep 17 00:00:00 2001 From: david decotigny Date: Sat, 5 Nov 2011 14:38:20 +0000 Subject: forcedeth: fix race when unloading module When forcedeth module is unloaded, there exists a path that can lead to mod_timer() after del_timer_sync(), causing an oops. This patch short-circuits this unneeded path, which originates in nv_get_ethtool_stats(). Tested: x86_64 16-way + 3 ethtool -S infinite loops + 100Mbps incoming traffic + rmmod/modprobe/ifconfig in a loop Initial-Author: Salman Qazi Discussion: http://patchwork.ozlabs.org/patch/123548/ Signed-off-by: David Decotigny Signed-off-by: David S. Miller --- drivers/net/ethernet/nvidia/forcedeth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c index 1e37eb98c4e2..344cb5fa512d 100644 --- a/drivers/net/ethernet/nvidia/forcedeth.c +++ b/drivers/net/ethernet/nvidia/forcedeth.c @@ -4566,7 +4566,7 @@ static void nv_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *e struct fe_priv *np = netdev_priv(dev); /* update stats */ - nv_do_stats_poll((unsigned long)dev); + nv_get_hw_stats(dev); memcpy(buffer, &np->estats, nv_get_sset_count(dev, ETH_SS_STATS)*sizeof(u64)); } -- cgit v1.2.3 From 2a4e7a085fb44369c450c92cf8bd53b91f874a57 Mon Sep 17 00:00:00 2001 From: Mike Ditto Date: Sat, 5 Nov 2011 14:38:21 +0000 Subject: forcedeth: Acknowledge only interrupts that are being processed This is to avoid a race, accidentally acknowledging an interrupt that we didn't notice and won't immediately process. This is based solely on code inspection; it is not known if there was an actual bug here. Signed-off-by: David Decotigny Signed-off-by: David S. Miller --- drivers/net/ethernet/nvidia/forcedeth.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c index 344cb5fa512d..b7cf4b6e15ec 100644 --- a/drivers/net/ethernet/nvidia/forcedeth.c +++ b/drivers/net/ethernet/nvidia/forcedeth.c @@ -3398,7 +3398,8 @@ static irqreturn_t nv_nic_irq_tx(int foo, void *data) for (i = 0;; i++) { events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_TX_ALL; - writel(NVREG_IRQ_TX_ALL, base + NvRegMSIXIrqStatus); + writel(events, base + NvRegMSIXIrqStatus); + netdev_dbg(dev, "tx irq events: %08x\n", events); if (!(events & np->irqmask)) break; @@ -3509,7 +3510,8 @@ static irqreturn_t nv_nic_irq_rx(int foo, void *data) for (i = 0;; i++) { events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_RX_ALL; - writel(NVREG_IRQ_RX_ALL, base + NvRegMSIXIrqStatus); + writel(events, base + NvRegMSIXIrqStatus); + netdev_dbg(dev, "rx irq events: %08x\n", events); if (!(events & np->irqmask)) break; @@ -3553,7 +3555,8 @@ static irqreturn_t nv_nic_irq_other(int foo, void *data) for (i = 0;; i++) { events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_OTHER; - writel(NVREG_IRQ_OTHER, base + NvRegMSIXIrqStatus); + writel(events, base + NvRegMSIXIrqStatus); + netdev_dbg(dev, "irq events: %08x\n", events); if (!(events & np->irqmask)) break; @@ -3617,10 +3620,10 @@ static irqreturn_t nv_nic_irq_test(int foo, void *data) if (!(np->msi_flags & NV_MSI_X_ENABLED)) { events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK; - writel(NVREG_IRQ_TIMER, base + NvRegIrqStatus); + writel(events & NVREG_IRQ_TIMER, base + NvRegIrqStatus); } else { events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK; - writel(NVREG_IRQ_TIMER, base + NvRegMSIXIrqStatus); + writel(events & NVREG_IRQ_TIMER, base + NvRegMSIXIrqStatus); } pci_push(base); if (!(events & NVREG_IRQ_TIMER)) -- cgit v1.2.3 From 4687f3f364a1d5b2df815a8c58a763cab57724e8 Mon Sep 17 00:00:00 2001 From: david decotigny Date: Sat, 5 Nov 2011 14:38:22 +0000 Subject: forcedeth: remove unneeded stats updates Function ndo_get_stats() updates most of the stats from hardware registers, making the manual updates un-needed. This change removes these manual updates. Main exception is rx_missed_errors which needs manual update. Another exception is rx_packets, still updated manually in this commit to make sure this patch doesn't change behavior of driver. This will be addressed by a future patch. Signed-off-by: David Decotigny Signed-off-by: David S. Miller --- drivers/net/ethernet/nvidia/forcedeth.c | 35 +-------------------------------- 1 file changed, 1 insertion(+), 34 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c index b7cf4b6e15ec..2f1eaee5cf00 100644 --- a/drivers/net/ethernet/nvidia/forcedeth.c +++ b/drivers/net/ethernet/nvidia/forcedeth.c @@ -2374,16 +2374,8 @@ static int nv_tx_done(struct net_device *dev, int limit) if (np->desc_ver == DESC_VER_1) { if (flags & NV_TX_LASTPACKET) { if (flags & NV_TX_ERROR) { - if (flags & NV_TX_UNDERFLOW) - dev->stats.tx_fifo_errors++; - if (flags & NV_TX_CARRIERLOST) - dev->stats.tx_carrier_errors++; if ((flags & NV_TX_RETRYERROR) && !(flags & NV_TX_RETRYCOUNT_MASK)) nv_legacybackoff_reseed(dev); - dev->stats.tx_errors++; - } else { - dev->stats.tx_packets++; - dev->stats.tx_bytes += np->get_tx_ctx->skb->len; } dev_kfree_skb_any(np->get_tx_ctx->skb); np->get_tx_ctx->skb = NULL; @@ -2392,16 +2384,8 @@ static int nv_tx_done(struct net_device *dev, int limit) } else { if (flags & NV_TX2_LASTPACKET) { if (flags & NV_TX2_ERROR) { - if (flags & NV_TX2_UNDERFLOW) - dev->stats.tx_fifo_errors++; - if (flags & NV_TX2_CARRIERLOST) - dev->stats.tx_carrier_errors++; if ((flags & NV_TX2_RETRYERROR) && !(flags & NV_TX2_RETRYCOUNT_MASK)) nv_legacybackoff_reseed(dev); - dev->stats.tx_errors++; - } else { - dev->stats.tx_packets++; - dev->stats.tx_bytes += np->get_tx_ctx->skb->len; } dev_kfree_skb_any(np->get_tx_ctx->skb); np->get_tx_ctx->skb = NULL; @@ -2434,9 +2418,7 @@ static int nv_tx_done_optimized(struct net_device *dev, int limit) nv_unmap_txskb(np, np->get_tx_ctx); if (flags & NV_TX2_LASTPACKET) { - if (!(flags & NV_TX2_ERROR)) - dev->stats.tx_packets++; - else { + if (flags & NV_TX2_ERROR) { if ((flags & NV_TX2_RETRYERROR) && !(flags & NV_TX2_RETRYCOUNT_MASK)) { if (np->driver_data & DEV_HAS_GEAR_MODE) nv_gear_backoff_reseed(dev); @@ -2636,7 +2618,6 @@ static int nv_rx_process(struct net_device *dev, int limit) if ((flags & NV_RX_ERROR_MASK) == NV_RX_ERROR4) { len = nv_getlen(dev, skb->data, len); if (len < 0) { - dev->stats.rx_errors++; dev_kfree_skb(skb); goto next_pkt; } @@ -2650,11 +2631,6 @@ static int nv_rx_process(struct net_device *dev, int limit) else { if (flags & NV_RX_MISSEDFRAME) dev->stats.rx_missed_errors++; - if (flags & NV_RX_CRCERR) - dev->stats.rx_crc_errors++; - if (flags & NV_RX_OVERFLOW) - dev->stats.rx_over_errors++; - dev->stats.rx_errors++; dev_kfree_skb(skb); goto next_pkt; } @@ -2670,7 +2646,6 @@ static int nv_rx_process(struct net_device *dev, int limit) if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_ERROR4) { len = nv_getlen(dev, skb->data, len); if (len < 0) { - dev->stats.rx_errors++; dev_kfree_skb(skb); goto next_pkt; } @@ -2682,11 +2657,6 @@ static int nv_rx_process(struct net_device *dev, int limit) } /* the rest are hard errors */ else { - if (flags & NV_RX2_CRCERR) - dev->stats.rx_crc_errors++; - if (flags & NV_RX2_OVERFLOW) - dev->stats.rx_over_errors++; - dev->stats.rx_errors++; dev_kfree_skb(skb); goto next_pkt; } @@ -2704,7 +2674,6 @@ static int nv_rx_process(struct net_device *dev, int limit) skb->protocol = eth_type_trans(skb, dev); napi_gro_receive(&np->napi, skb); dev->stats.rx_packets++; - dev->stats.rx_bytes += len; next_pkt: if (unlikely(np->get_rx.orig++ == np->last_rx.orig)) np->get_rx.orig = np->first_rx.orig; @@ -2787,9 +2756,7 @@ static int nv_rx_process_optimized(struct net_device *dev, int limit) __vlan_hwaccel_put_tag(skb, vid); } napi_gro_receive(&np->napi, skb); - dev->stats.rx_packets++; - dev->stats.rx_bytes += len; } else { dev_kfree_skb(skb); } -- cgit v1.2.3 From 0bdfea8ba856826f5901fda608013f323c87f661 Mon Sep 17 00:00:00 2001 From: Mandeep Baines Date: Sat, 5 Nov 2011 14:38:23 +0000 Subject: forcedeth: Improve stats counters Rx byte count was off; instead use the hardware's count. Tx packet count was counting pre-TSO packets; instead count on-the-wire packets. Report hardware dropped frame count as rx_fifo_errors. - The count of transmitted packets reported by the forcedeth driver reports pre-TSO (TCP Segmentation Offload) packet counts and not the count of the number of packets sent on the wire. This change fixes the forcedeth driver to report the correct count. Fixed the code by copying the count stored in the NIC H/W to the value reported by the driver. - Count rx_drop_frame errors as rx_fifo_errors: We see a lot of rx_drop_frame errors if we disable the rx bottom-halves for too long. Normally, rx_fifo_errors would be counted in this case. The rx_drop_frame error count is private to forcedeth and is not reported by ifconfig or sysfs. The rx_fifo_errors count is currently unused in the forcedeth driver. It is reported by ifconfig as overruns. This change reports rx_drop_frame errors as rx_fifo_errors. Signed-off-by: David Decotigny Signed-off-by: David S. Miller --- drivers/net/ethernet/nvidia/forcedeth.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c index 2f1eaee5cf00..0c10ff700cbc 100644 --- a/drivers/net/ethernet/nvidia/forcedeth.c +++ b/drivers/net/ethernet/nvidia/forcedeth.c @@ -1682,6 +1682,7 @@ static void nv_get_hw_stats(struct net_device *dev) np->estats.tx_pause += readl(base + NvRegTxPause); np->estats.rx_pause += readl(base + NvRegRxPause); np->estats.rx_drop_frame += readl(base + NvRegRxDropFrame); + np->estats.rx_errors_total += np->estats.rx_drop_frame; } if (np->driver_data & DEV_HAS_STATISTICS_V3) { @@ -1706,11 +1707,14 @@ static struct net_device_stats *nv_get_stats(struct net_device *dev) nv_get_hw_stats(dev); /* copy to net_device stats */ + dev->stats.tx_packets = np->estats.tx_packets; + dev->stats.rx_bytes = np->estats.rx_bytes; dev->stats.tx_bytes = np->estats.tx_bytes; dev->stats.tx_fifo_errors = np->estats.tx_fifo_errors; dev->stats.tx_carrier_errors = np->estats.tx_carrier_errors; dev->stats.rx_crc_errors = np->estats.rx_crc_errors; dev->stats.rx_over_errors = np->estats.rx_over_errors; + dev->stats.rx_fifo_errors = np->estats.rx_drop_frame; dev->stats.rx_errors = np->estats.rx_errors_total; dev->stats.tx_errors = np->estats.tx_errors_total; } -- cgit v1.2.3 From e45a618753d5a8bc9086382f73bbc2d6a3399250 Mon Sep 17 00:00:00 2001 From: david decotigny Date: Sat, 5 Nov 2011 14:38:24 +0000 Subject: forcedeth: fix a few sparse warnings (variable shadowing) This fixes the following sparse warnings: drivers/net/ethernet/nvidia/forcedeth.c:2113:7: warning: symbol 'size' shadows an earlier one drivers/net/ethernet/nvidia/forcedeth.c:2102:6: originally declared here drivers/net/ethernet/nvidia/forcedeth.c:2155:7: warning: symbol 'size' shadows an earlier one drivers/net/ethernet/nvidia/forcedeth.c:2102:6: originally declared here drivers/net/ethernet/nvidia/forcedeth.c:2227:7: warning: symbol 'size' shadows an earlier one drivers/net/ethernet/nvidia/forcedeth.c:2215:6: originally declared here drivers/net/ethernet/nvidia/forcedeth.c:2271:7: warning: symbol 'size' shadows an earlier one drivers/net/ethernet/nvidia/forcedeth.c:2215:6: originally declared here drivers/net/ethernet/nvidia/forcedeth.c:2986:20: warning: symbol 'addr' shadows an earlier one drivers/net/ethernet/nvidia/forcedeth.c:2963:6: originally declared here Signed-off-by: David Decotigny Signed-off-by: David S. Miller --- drivers/net/ethernet/nvidia/forcedeth.c | 34 ++++++++++++++++----------------- 1 file changed, 17 insertions(+), 17 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c index 0c10ff700cbc..1dca57013cb2 100644 --- a/drivers/net/ethernet/nvidia/forcedeth.c +++ b/drivers/net/ethernet/nvidia/forcedeth.c @@ -2103,10 +2103,10 @@ static netdev_tx_t nv_start_xmit(struct sk_buff *skb, struct net_device *dev) /* add fragments to entries count */ for (i = 0; i < fragments; i++) { - u32 size = skb_frag_size(&skb_shinfo(skb)->frags[i]); + u32 frag_size = skb_frag_size(&skb_shinfo(skb)->frags[i]); - entries += (size >> NV_TX2_TSO_MAX_SHIFT) + - ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0); + entries += (frag_size >> NV_TX2_TSO_MAX_SHIFT) + + ((frag_size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0); } spin_lock_irqsave(&np->lock, flags); @@ -2145,13 +2145,13 @@ static netdev_tx_t nv_start_xmit(struct sk_buff *skb, struct net_device *dev) /* setup the fragments */ for (i = 0; i < fragments; i++) { const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; - u32 size = skb_frag_size(frag); + u32 frag_size = skb_frag_size(frag); offset = 0; do { prev_tx = put_tx; prev_tx_ctx = np->put_tx_ctx; - bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size; + bcnt = (frag_size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : frag_size; np->put_tx_ctx->dma = skb_frag_dma_map( &np->pci_dev->dev, frag, offset, @@ -2163,12 +2163,12 @@ static netdev_tx_t nv_start_xmit(struct sk_buff *skb, struct net_device *dev) put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags); offset += bcnt; - size -= bcnt; + frag_size -= bcnt; if (unlikely(put_tx++ == np->last_tx.orig)) put_tx = np->first_tx.orig; if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx)) np->put_tx_ctx = np->first_tx_ctx; - } while (size); + } while (frag_size); } /* set last fragment flag */ @@ -2217,10 +2217,10 @@ static netdev_tx_t nv_start_xmit_optimized(struct sk_buff *skb, /* add fragments to entries count */ for (i = 0; i < fragments; i++) { - u32 size = skb_frag_size(&skb_shinfo(skb)->frags[i]); + u32 frag_size = skb_frag_size(&skb_shinfo(skb)->frags[i]); - entries += (size >> NV_TX2_TSO_MAX_SHIFT) + - ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0); + entries += (frag_size >> NV_TX2_TSO_MAX_SHIFT) + + ((frag_size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0); } spin_lock_irqsave(&np->lock, flags); @@ -2261,13 +2261,13 @@ static netdev_tx_t nv_start_xmit_optimized(struct sk_buff *skb, /* setup the fragments */ for (i = 0; i < fragments; i++) { skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; - u32 size = skb_frag_size(frag); + u32 frag_size = skb_frag_size(frag); offset = 0; do { prev_tx = put_tx; prev_tx_ctx = np->put_tx_ctx; - bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size; + bcnt = (frag_size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : frag_size; np->put_tx_ctx->dma = skb_frag_dma_map( &np->pci_dev->dev, frag, offset, @@ -2280,12 +2280,12 @@ static netdev_tx_t nv_start_xmit_optimized(struct sk_buff *skb, put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags); offset += bcnt; - size -= bcnt; + frag_size -= bcnt; if (unlikely(put_tx++ == np->last_tx.ex)) put_tx = np->first_tx.ex; if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx)) np->put_tx_ctx = np->first_tx_ctx; - } while (size); + } while (frag_size); } /* set last fragment flag */ @@ -2933,11 +2933,11 @@ static void nv_set_multicast(struct net_device *dev) struct netdev_hw_addr *ha; netdev_for_each_mc_addr(ha, dev) { - unsigned char *addr = ha->addr; + unsigned char *hw_addr = ha->addr; u32 a, b; - a = le32_to_cpu(*(__le32 *) addr); - b = le16_to_cpu(*(__le16 *) (&addr[4])); + a = le32_to_cpu(*(__le32 *) hw_addr); + b = le16_to_cpu(*(__le16 *) (&hw_addr[4])); alwaysOn[0] &= a; alwaysOff[0] &= ~a; alwaysOn[1] &= b; -- cgit v1.2.3