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ionic: fix up issues with handling EAGAIN on FW cmds

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[ Upstream commit 0fc4dd452d6c14828eed6369155c75c0ac15bab3 ]

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>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Shannon Nelson 2022-08-24 09:50:50 -07:00 committed by Greg Kroah-Hartman
parent 94d71d99e5
commit 79e77fb156
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/pensando/ionic/ionic_main.c
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@ -474,8 +474,8 @@ try_again:
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 @@ try_again:
return ionic_error_to_errno(err);
}
ionic_dev_cmd_clean(ionic);
return 0;
}