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bnxt_en: Add new FW devlink_health_reporter

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Create new FW devlink_health_reporter, to know the current health
status of FW.

Command example and output:
$ devlink health show pci/0000:af:00.0 reporter fw

pci/0000:af:00.0:
  name fw
    state healthy error 0 recover 0

 FW status: Healthy; Reset count: 1

Cc: Jiri Pirko <jiri@mellanox.com>
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>
This commit is contained in:
Vasundhara Volam 2019-08-29 23:54:57 -04:00 committed by David S. Miller
parent 3bc7d4a352
commit 6763c779c2
2 changed files with 84 additions and 0 deletions
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3
drivers/net/ethernet/broadcom/bnxt/bnxt.h
View File

@ -1368,6 +1368,7 @@ struct bnxt_fw_health {
u32 fw_reset_seq_regs[16];
u32 fw_reset_seq_vals[16];
u32 fw_reset_seq_delay_msec[16];
struct devlink_health_reporter *fw_reporter;
};
#define BNXT_FW_HEALTH_REG_TYPE_MASK 3
@ -1382,6 +1383,8 @@ struct bnxt_fw_health {
#define BNXT_FW_HEALTH_WIN_BASE 0x3000
#define BNXT_FW_HEALTH_WIN_MAP_OFF 8
#define BNXT_FW_STATUS_HEALTHY 0x8000
struct bnxt {
void __iomem *bar0;
void __iomem *bar1;

81
drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
View File

@ -15,6 +15,84 @@
#include "bnxt_vfr.h"
#include "bnxt_devlink.h"
static int bnxt_fw_reporter_diagnose(struct devlink_health_reporter *reporter,
struct devlink_fmsg *fmsg)
{
struct bnxt *bp = devlink_health_reporter_priv(reporter);
struct bnxt_fw_health *health = bp->fw_health;
u32 val, health_status;
int rc;
if (!health || test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
return 0;
val = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);
health_status = val & 0xffff;
if (health_status == BNXT_FW_STATUS_HEALTHY) {
rc = devlink_fmsg_string_pair_put(fmsg, "FW status",
"Healthy;");
if (rc)
return rc;
} else if (health_status < BNXT_FW_STATUS_HEALTHY) {
rc = devlink_fmsg_string_pair_put(fmsg, "FW status",
"Not yet completed initialization;");
if (rc)
return rc;
} else if (health_status > BNXT_FW_STATUS_HEALTHY) {
rc = devlink_fmsg_string_pair_put(fmsg, "FW status",
"Encountered fatal error and cannot recover;");
if (rc)
return rc;
}
if (val >> 16) {
rc = devlink_fmsg_u32_pair_put(fmsg, "Error", val >> 16);
if (rc)
return rc;
}
val = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
rc = devlink_fmsg_u32_pair_put(fmsg, "Reset count", val);
if (rc)
return rc;
return 0;
}
static const struct devlink_health_reporter_ops bnxt_dl_fw_reporter_ops = {
.name = "fw",
.diagnose = bnxt_fw_reporter_diagnose,
};
static void bnxt_dl_fw_reporters_create(struct bnxt *bp)
{
struct bnxt_fw_health *health = bp->fw_health;
if (!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;
}
}
static void bnxt_dl_fw_reporters_destroy(struct bnxt *bp)
{
struct bnxt_fw_health *health = bp->fw_health;
if (!health)
return;
if (health->fw_reporter)
devlink_health_reporter_destroy(health->fw_reporter);
}
static const struct devlink_ops bnxt_dl_ops = {
#ifdef CONFIG_BNXT_SRIOV
.eswitch_mode_set = bnxt_dl_eswitch_mode_set,
@ -247,6 +325,8 @@ int bnxt_dl_register(struct bnxt *bp)
devlink_params_publish(dl);
bnxt_dl_fw_reporters_create(bp);
return 0;
err_dl_port_unreg:
@ -269,6 +349,7 @@ 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);