diff mbox series

[net,2/3] ionic: fix up issues with handling EAGAIN on FW cmds

Message ID 20220824165051.6185-3-snelson@pensando.io (mailing list archive)
State Accepted
Commit 0fc4dd452d6c14828eed6369155c75c0ac15bab3
Delegated to: Netdev Maintainers
Headers show
Series ionic: bug fixes | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net
netdev/fixes_present success Fixes tag present in non-next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 3 maintainers not CCed: edumazet@google.com brett@pensando.io pabeni@redhat.com
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 85 this patch: 85
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 17 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Shannon Nelson Aug. 24, 2022, 4:50 p.m. UTC
In looping on FW update tests we occasionally see the
FW_ACTIVATE_STATUS command fail while it is in its EAGAIN loop
waiting for the FW activate step to finsh inside the FW.  The
firmware is complaining that the done bit is set when a new
dev_cmd is going to be processed.

Doing a clean on the cmd registers and doorbell before exiting
the wait-for-done and cleaning the done bit before the sleep
prevents this from occurring.

Fixes: fbfb8031533c ("ionic: Add hardware init and device commands")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
---
 drivers/net/ethernet/pensando/ionic/ionic_main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_main.c b/drivers/net/ethernet/pensando/ionic/ionic_main.c
index 4029b4e021f8..56f93b030551 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_main.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_main.c
@@ -474,8 +474,8 @@  static int __ionic_dev_cmd_wait(struct ionic *ionic, unsigned long max_seconds,
 				ionic_opcode_to_str(opcode), opcode,
 				ionic_error_to_str(err), err);
 
-			msleep(1000);
 			iowrite32(0, &idev->dev_cmd_regs->done);
+			msleep(1000);
 			iowrite32(1, &idev->dev_cmd_regs->doorbell);
 			goto try_again;
 		}
@@ -488,6 +488,8 @@  static int __ionic_dev_cmd_wait(struct ionic *ionic, unsigned long max_seconds,
 		return ionic_error_to_errno(err);
 	}
 
+	ionic_dev_cmd_clean(ionic);
+
 	return 0;
 }