From bae361c54fb6ac6eba3b4762f49ce14beb73ef13 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Sun, 26 Apr 2020 16:24:40 -0400 Subject: bnxt_en: Improve AER slot reset. Improve the slot reset sequence by disabling the device to prevent bad DMAs if slot reset fails. Return the proper result instead of always PCI_ERS_RESULT_RECOVERED to the caller. Fixes: 6316ea6db93d ("bnxt_en: Enable AER support.") Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt.c') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index fead64f1ad90..d8db08ec8693 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -12212,12 +12212,15 @@ static pci_ers_result_t bnxt_io_slot_reset(struct pci_dev *pdev) bnxt_ulp_start(bp, err); } - if (result != PCI_ERS_RESULT_RECOVERED && netif_running(netdev)) - dev_close(netdev); + if (result != PCI_ERS_RESULT_RECOVERED) { + if (netif_running(netdev)) + dev_close(netdev); + pci_disable_device(pdev); + } rtnl_unlock(); - return PCI_ERS_RESULT_RECOVERED; + return result; } /** -- cgit v1.2.3-59-g8ed1b From bbf211b1ecb891c7e0cc7888834504183fc8b534 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Sun, 26 Apr 2020 16:24:41 -0400 Subject: bnxt_en: Return error when allocating zero size context memory. bnxt_alloc_ctx_pg_tbls() should return error when the memory size of the context memory to set up is zero. By returning success (0), the caller may proceed normally and may crash later when it tries to set up the memory. Fixes: 08fe9d181606 ("bnxt_en: Add Level 2 context memory paging support.") Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt.c') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index d8db08ec8693..070c42d3318f 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -6642,7 +6642,7 @@ static int bnxt_alloc_ctx_pg_tbls(struct bnxt *bp, int rc; if (!mem_size) - return 0; + return -EINVAL; ctx_pg->nr_pages = DIV_ROUND_UP(mem_size, BNXT_PAGE_SIZE); if (ctx_pg->nr_pages > MAX_CTX_TOTAL_PAGES) { -- cgit v1.2.3-59-g8ed1b From c72cb303aa6c2ae7e4184f0081c6d11bf03fb96b Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Sun, 26 Apr 2020 16:24:42 -0400 Subject: bnxt_en: Fix VLAN acceleration handling in bnxt_fix_features(). The current logic in bnxt_fix_features() will inadvertently turn on both CTAG and STAG VLAN offload if the user tries to disable both. Fix it by checking that the user is trying to enable CTAG or STAG before enabling both. The logic is supposed to enable or disable both CTAG and STAG together. Fixes: 5a9f6b238e59 ("bnxt_en: Enable and disable RX CTAG and RX STAG VLAN acceleration together.") Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt.c') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 070c42d3318f..d1a83716d934 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -9780,6 +9780,7 @@ static netdev_features_t bnxt_fix_features(struct net_device *dev, netdev_features_t features) { struct bnxt *bp = netdev_priv(dev); + netdev_features_t vlan_features; if ((features & NETIF_F_NTUPLE) && !bnxt_rfs_capable(bp)) features &= ~NETIF_F_NTUPLE; @@ -9796,12 +9797,14 @@ static netdev_features_t bnxt_fix_features(struct net_device *dev, /* Both CTAG and STAG VLAN accelaration on the RX side have to be * turned on or off together. */ - if ((features & (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX)) != - (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX)) { + vlan_features = features & (NETIF_F_HW_VLAN_CTAG_RX | + NETIF_F_HW_VLAN_STAG_RX); + if (vlan_features != (NETIF_F_HW_VLAN_CTAG_RX | + NETIF_F_HW_VLAN_STAG_RX)) { if (dev->features & NETIF_F_HW_VLAN_CTAG_RX) features &= ~(NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX); - else + else if (vlan_features) features |= NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX; } -- cgit v1.2.3-59-g8ed1b