diff options
| author | Saravanan Vajravel <saravanan.vajravel@broadcom.com> | 2024-11-22 14:45:41 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-05 14:02:34 +0100 |
| commit | 3c38fe57c83798ae524d96b7daf7773b01cb41ae (patch) | |
| tree | 9199008dd50cc86d2fe6870f28fbc5a63ef9c32d | |
| parent | 50aa2502d42928ae0a245d5c8f4a45b3ee335fce (diff) | |
bnxt_en: Reserve rings after PCIe AER recovery if NIC interface is down
[ Upstream commit 5311598f7f3293683cdc761df71ae3469327332c ]
After successful PCIe AER recovery, FW will reset all resource
reservations. If it is IF_UP, the driver will call bnxt_open() and
all resources will be reserved again. It it is IF_DOWN, we should
call bnxt_reserve_rings() so that we can reserve resources including
RoCE resources to allow RoCE to resume after AER. Without this
patch, RoCE fails to resume in this IF_DOWN scenario.
Later, if it becomes IF_UP, bnxt_open() will see that resources have
been reserved and will not reserve again.
Fixes: fb1e6e562b37 ("bnxt_en: Fix AER recovery.")
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Reviewed-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Saravanan Vajravel <saravanan.vajravel@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 99d025b69079..20a8cb26bc0a 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -16232,8 +16232,12 @@ static void bnxt_io_resume(struct pci_dev *pdev) rtnl_lock(); err = bnxt_hwrm_func_qcaps(bp); - if (!err && netif_running(netdev)) - err = bnxt_open(netdev); + if (!err) { + if (netif_running(netdev)) + err = bnxt_open(netdev); + else + err = bnxt_reserve_rings(bp, true); + } if (!err) netif_device_attach(netdev); |