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authorShannon Nelson <shannon.nelson@amd.com>2023-09-15 01:31:57 +0300
committerDavid S. Miller <davem@davemloft.net>2023-09-18 11:28:22 +0300
commitf7b5bd725b737de3f2c4a836e07c82ba156d75df (patch)
tree9ba657e616be364f9c46bca98f09cdfb0c18a855 /drivers/net/ethernet/amd
parent8d6198a14e2bfb09f190055b387c90b4ac9b49a4 (diff)
downloadlinux-f7b5bd725b737de3f2c4a836e07c82ba156d75df.tar.xz
pds_core: check health in devcmd wait
Similar to what we do in the AdminQ, check for devcmd health while waiting for an answer. Signed-off-by: Shannon Nelson <shannon.nelson@amd.com> Reviewed-by: Brett Creeley <brett.creeley@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/amd')
-rw-r--r--drivers/net/ethernet/amd/pds_core/dev.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/ethernet/amd/pds_core/dev.c b/drivers/net/ethernet/amd/pds_core/dev.c
index f77cd9f5a2fd..7c1b965d61a9 100644
--- a/drivers/net/ethernet/amd/pds_core/dev.c
+++ b/drivers/net/ethernet/amd/pds_core/dev.c
@@ -42,6 +42,8 @@ int pdsc_err_to_errno(enum pds_core_status_code code)
return -ERANGE;
case PDS_RC_BAD_ADDR:
return -EFAULT;
+ case PDS_RC_BAD_PCI:
+ return -ENXIO;
case PDS_RC_EOPCODE:
case PDS_RC_EINTR:
case PDS_RC_DEV_CMD:
@@ -62,7 +64,7 @@ bool pdsc_is_fw_running(struct pdsc *pdsc)
/* Firmware is useful only if the running bit is set and
* fw_status != 0xff (bad PCI read)
*/
- return (pdsc->fw_status != 0xff) &&
+ return (pdsc->fw_status != PDS_RC_BAD_PCI) &&
(pdsc->fw_status & PDS_CORE_FW_STS_F_RUNNING);
}
@@ -128,6 +130,7 @@ static int pdsc_devcmd_wait(struct pdsc *pdsc, u8 opcode, int max_seconds)
unsigned long max_wait;
unsigned long duration;
int timeout = 0;
+ bool running;
int done = 0;
int err = 0;
int status;
@@ -136,6 +139,10 @@ static int pdsc_devcmd_wait(struct pdsc *pdsc, u8 opcode, int max_seconds)
max_wait = start_time + (max_seconds * HZ);
while (!done && !timeout) {
+ running = pdsc_is_fw_running(pdsc);
+ if (!running)
+ break;
+
done = pdsc_devcmd_done(pdsc);
if (done)
break;
@@ -152,7 +159,7 @@ static int pdsc_devcmd_wait(struct pdsc *pdsc, u8 opcode, int max_seconds)
dev_dbg(dev, "DEVCMD %d %s after %ld secs\n",
opcode, pdsc_devcmd_str(opcode), duration / HZ);
- if (!done || timeout) {
+ if ((!done || timeout) && running) {
dev_err(dev, "DEVCMD %d %s timeout, done %d timeout %d max_seconds=%d\n",
opcode, pdsc_devcmd_str(opcode), done, timeout,
max_seconds);