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Date: Tue, 10 Dec 2019 02:49:12 -0500
From: Michael Chan <michael.chan@...adcom.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
Vasundhara Volam <vasundhara-v.volam@...adcom.com>
Subject: [PATCH net 6/7] bnxt_en: Fix the logic that creates the health reporters.
From: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
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@...adcom.com>
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
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(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 2a100ff..819b7d7 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -10625,6 +10625,12 @@ static int bnxt_fw_init_one(struct bnxt *bp)
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;
}
@@ -11413,6 +11419,7 @@ static void bnxt_remove_one(struct pci_dev *pdev)
if (BNXT_PF(bp)) {
bnxt_sriov_disable(bp);
+ bnxt_dl_fw_reporters_destroy(bp, true);
bnxt_dl_unregister(bp);
}
@@ -11892,8 +11899,10 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
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,
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
index 1e7c7c3..136953a 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
@@ -125,21 +125,15 @@ struct devlink_health_reporter_ops bnxt_dl_fw_fatal_reporter_ops = {
.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,
@@ -149,8 +143,30 @@ static void bnxt_dl_fw_reporters_create(struct bnxt *bp)
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,
@@ -159,24 +175,35 @@ static void bnxt_dl_fw_reporters_create(struct bnxt *bp)
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)
@@ -502,8 +529,6 @@ int bnxt_dl_register(struct bnxt *bp)
devlink_params_publish(dl);
- bnxt_dl_fw_reporters_create(bp);
-
return 0;
err_dl_port_unreg:
@@ -526,7 +551,6 @@ 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);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h
index 665d4bd..6db6c3d 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h
@@ -58,6 +58,8 @@ struct bnxt_dl_nvm_param {
void bnxt_devlink_health_report(struct bnxt *bp, unsigned long event);
void bnxt_dl_health_status_update(struct bnxt *bp, bool healthy);
+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);
--
2.5.1
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