From: Vasundhara Volam vasundhara-v.volam@broadcom.com
[ Upstream commit b340dc680ed48dcc05b56e1ebe1b9535813c3ee0 ]
When the driver goes through PCIe AER reset in error state, all firmware messages will timeout because the PCIe bus is no longer accessible. This can lead to AER reset taking many minutes to complete as each firmware command takes time to timeout.
Define a new macro BNXT_NO_FW_ACCESS() to skip these firmware messages when either firmware is in fatal error state or when pci_channel_offline() is true. It now takes a more reasonable 20 to 30 seconds to complete AER recovery.
Fixes: b4fff2079d10 ("bnxt_en: Do not send firmware messages if firmware is in error state.") Signed-off-by: Vasundhara Volam vasundhara-v.volam@broadcom.com Signed-off-by: Michael Chan michael.chan@broadcom.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 6 +++--- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 4 ++++ 2 files changed, 7 insertions(+), 3 deletions(-)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -4198,7 +4198,7 @@ static int bnxt_hwrm_do_send_msg(struct u32 bar_offset = BNXT_GRCPF_REG_CHIMP_COMM; u16 dst = BNXT_HWRM_CHNL_CHIMP;
- if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) + if (BNXT_NO_FW_ACCESS(bp)) return -EBUSY;
if (msg_len > BNXT_HWRM_MAX_REQ_LEN) { @@ -5530,7 +5530,7 @@ static int hwrm_ring_free_send_msg(struc struct hwrm_ring_free_output *resp = bp->hwrm_cmd_resp_addr; u16 error_code;
- if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) + if (BNXT_NO_FW_ACCESS(bp)) return 0;
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_FREE, cmpl_ring_id, -1); @@ -7502,7 +7502,7 @@ static int bnxt_set_tpa(struct bnxt *bp,
if (set_tpa) tpa_flags = bp->flags & BNXT_FLAG_TPA; - else if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) + else if (BNXT_NO_FW_ACCESS(bp)) return 0; for (i = 0; i < bp->nr_vnics; i++) { rc = bnxt_hwrm_vnic_set_tpa(bp, i, tpa_flags); --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -1673,6 +1673,10 @@ struct bnxt { #define BNXT_STATE_FW_FATAL_COND 6 #define BNXT_STATE_DRV_REGISTERED 7
+#define BNXT_NO_FW_ACCESS(bp) \ + (test_bit(BNXT_STATE_FW_FATAL_COND, &(bp)->state) || \ + pci_channel_offline((bp)->pdev)) + struct bnxt_irq *irq_tbl; int total_irqs; u8 mac_addr[ETH_ALEN];