From: Kalesh AP kalesh-anakkur.purayil@broadcom.com
commit 0e0e3c5358470cbad10bd7ca29f84a44d179d286 upstream.
During ifdown, we call bnxt_inv_fw_health_reg() which will clear both the status_reliable and resets_reliable flags if these registers are mapped. This is correct because a FW reset during ifdown will clear these register mappings. If we detect that FW has gone through reset during the next ifup, we will remap these registers.
But during normal ifup with no FW reset, we need to restore the resets_reliable flag otherwise we will not show the reset counter during devlink diagnose.
Fixes: 8cc95ceb7087 ("bnxt_en: improve fw diagnose devlink health messages") Reviewed-by: Vikas Gupta vikas.gupta@broadcom.com Reviewed-by: Pavan Chebbi pavan.chebbi@broadcom.com Reviewed-by: Somnath Kotur somnath.kotur@broadcom.com Signed-off-by: Kalesh AP kalesh-anakkur.purayil@broadcom.com Signed-off-by: Michael Chan michael.chan@broadcom.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -7776,6 +7776,19 @@ static int bnxt_map_fw_health_regs(struc return 0; }
+static void bnxt_remap_fw_health_regs(struct bnxt *bp) +{ + if (!bp->fw_health) + return; + + if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) { + bp->fw_health->status_reliable = true; + bp->fw_health->resets_reliable = true; + } else { + bnxt_try_map_fw_health_reg(bp); + } +} + static int bnxt_hwrm_error_recovery_qcfg(struct bnxt *bp) { struct bnxt_fw_health *fw_health = bp->fw_health; @@ -9836,8 +9849,8 @@ static int bnxt_hwrm_if_change(struct bn resc_reinit = true; if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_HOT_FW_RESET_DONE) fw_reset = true; - else if (bp->fw_health && !bp->fw_health->status_reliable) - bnxt_try_map_fw_health_reg(bp); + else + bnxt_remap_fw_health_regs(bp);
if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state) && !fw_reset) { netdev_err(bp->dev, "RESET_DONE not set during FW reset.\n");