From: Vasundhara Volam vasundhara-v.volam@broadcom.com
[ Upstream commit 937f188c1f4f89b3fa93ba31fc8587dc1fb14a22 ]
Fix the logic to properly check the fw capabilities and create the devlink health reporters only when needed. The current code creates the reporters unconditionally as long as bp->fw_health is valid, and that's not correct.
Call bnxt_dl_fw_reporters_create() directly from the init and reset code path instead of from bnxt_dl_register(). This allows the reporters to be adjusted when capabilities change. The same applies to bnxt_dl_fw_reporters_destroy().
Fixes: 6763c779c2d8 ("bnxt_en: Add new FW devlink_health_reporter") Signed-off-by: Vasundhara Volam vasundhara-v.volam@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 | 11 +++ drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c | 64 +++++++++++++++------- drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h | 2 3 files changed, 56 insertions(+), 21 deletions(-)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -10563,6 +10563,12 @@ static int bnxt_fw_init_one(struct bnxt rc = bnxt_approve_mac(bp, bp->dev->dev_addr, false); if (rc) return rc; + + /* In case fw capabilities have changed, destroy the unneeded + * reporters and create newly capable ones. + */ + bnxt_dl_fw_reporters_destroy(bp, false); + bnxt_dl_fw_reporters_create(bp); bnxt_fw_init_one_p3(bp); return 0; } @@ -11339,6 +11345,7 @@ static void bnxt_remove_one(struct pci_d
if (BNXT_PF(bp)) { bnxt_sriov_disable(bp); + bnxt_dl_fw_reporters_destroy(bp, true); bnxt_dl_unregister(bp); }
@@ -11837,8 +11844,10 @@ static int bnxt_init_one(struct pci_dev if (rc) goto init_err_cleanup_tc;
- if (BNXT_PF(bp)) + if (BNXT_PF(bp)) { bnxt_dl_register(bp); + bnxt_dl_fw_reporters_create(bp); + }
netdev_info(dev, "%s found at mem %lx, node addr %pM\n", board_info[ent->driver_data].name, --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c @@ -102,21 +102,15 @@ struct devlink_health_reporter_ops bnxt_ .recover = bnxt_fw_fatal_recover, };
-static void bnxt_dl_fw_reporters_create(struct bnxt *bp) +void bnxt_dl_fw_reporters_create(struct bnxt *bp) { struct bnxt_fw_health *health = bp->fw_health;
- if (!health) + if (!bp->dl || !health) return;
- health->fw_reporter = - devlink_health_reporter_create(bp->dl, &bnxt_dl_fw_reporter_ops, - 0, false, bp); - if (IS_ERR(health->fw_reporter)) { - netdev_warn(bp->dev, "Failed to create FW health reporter, rc = %ld\n", - PTR_ERR(health->fw_reporter)); - health->fw_reporter = NULL; - } + if (!(bp->fw_cap & BNXT_FW_CAP_HOT_RESET) || health->fw_reset_reporter) + goto err_recovery;
health->fw_reset_reporter = devlink_health_reporter_create(bp->dl, @@ -126,8 +120,30 @@ static void bnxt_dl_fw_reporters_create( netdev_warn(bp->dev, "Failed to create FW fatal health reporter, rc = %ld\n", PTR_ERR(health->fw_reset_reporter)); health->fw_reset_reporter = NULL; + bp->fw_cap &= ~BNXT_FW_CAP_HOT_RESET; }
+err_recovery: + if (!(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)) + return; + + if (!health->fw_reporter) { + health->fw_reporter = + devlink_health_reporter_create(bp->dl, + &bnxt_dl_fw_reporter_ops, + 0, false, bp); + if (IS_ERR(health->fw_reporter)) { + netdev_warn(bp->dev, "Failed to create FW health reporter, rc = %ld\n", + PTR_ERR(health->fw_reporter)); + health->fw_reporter = NULL; + bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY; + return; + } + } + + if (health->fw_fatal_reporter) + return; + health->fw_fatal_reporter = devlink_health_reporter_create(bp->dl, &bnxt_dl_fw_fatal_reporter_ops, @@ -136,24 +152,35 @@ static void bnxt_dl_fw_reporters_create( netdev_warn(bp->dev, "Failed to create FW fatal health reporter, rc = %ld\n", PTR_ERR(health->fw_fatal_reporter)); health->fw_fatal_reporter = NULL; + bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY; } }
-static void bnxt_dl_fw_reporters_destroy(struct bnxt *bp) +void bnxt_dl_fw_reporters_destroy(struct bnxt *bp, bool all) { struct bnxt_fw_health *health = bp->fw_health;
- if (!health) + if (!bp->dl || !health) return;
- if (health->fw_reporter) - devlink_health_reporter_destroy(health->fw_reporter); - - if (health->fw_reset_reporter) + if ((all || !(bp->fw_cap & BNXT_FW_CAP_HOT_RESET)) && + health->fw_reset_reporter) { devlink_health_reporter_destroy(health->fw_reset_reporter); + health->fw_reset_reporter = NULL; + }
- if (health->fw_fatal_reporter) + if ((bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) && !all) + return; + + if (health->fw_reporter) { + devlink_health_reporter_destroy(health->fw_reporter); + health->fw_reporter = NULL; + } + + if (health->fw_fatal_reporter) { devlink_health_reporter_destroy(health->fw_fatal_reporter); + health->fw_fatal_reporter = NULL; + } }
void bnxt_devlink_health_report(struct bnxt *bp, unsigned long event) @@ -458,8 +485,6 @@ int bnxt_dl_register(struct bnxt *bp)
devlink_params_publish(dl);
- bnxt_dl_fw_reporters_create(bp); - return 0;
err_dl_port_unreg: @@ -482,7 +507,6 @@ void bnxt_dl_unregister(struct bnxt *bp) if (!dl) return;
- bnxt_dl_fw_reporters_destroy(bp); devlink_port_params_unregister(&bp->dl_port, bnxt_dl_port_params, ARRAY_SIZE(bnxt_dl_port_params)); devlink_port_unregister(&bp->dl_port); --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h @@ -57,6 +57,8 @@ struct bnxt_dl_nvm_param { };
void bnxt_devlink_health_report(struct bnxt *bp, unsigned long event); +void bnxt_dl_fw_reporters_create(struct bnxt *bp); +void bnxt_dl_fw_reporters_destroy(struct bnxt *bp, bool all); int bnxt_dl_register(struct bnxt *bp); void bnxt_dl_unregister(struct bnxt *bp);