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sfc: Increase MCDI status timeout to 250ms

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The SFC9120 MC firmware often takes longer than 20ms to reboot and
update the warm boot count in BIU_MC_SFT_STATUS_REG.  A timeout of
250ms is very generous for an MC reboot.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
This commit is contained in:
Daniel Pieczko
2013-09-20 16:45:10 +01:00
committed by Ben Hutchings
parent dfdaa95c7a
commit b2d32f03e6
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/sfc/mcdi.c
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@@ -27,10 +27,10 @@
/* A reboot/assertion causes the MCDI status word to be set after the /* A reboot/assertion causes the MCDI status word to be set after the
* command word is set or a REBOOT event is sent. If we notice a reboot * command word is set or a REBOOT event is sent. If we notice a reboot
* via these mechanisms then wait 20ms for the status word to be set. * via these mechanisms then wait 250ms for the status word to be set.
*/ */
#define MCDI_STATUS_DELAY_US 100 #define MCDI_STATUS_DELAY_US 100
#define MCDI_STATUS_DELAY_COUNT 200 #define MCDI_STATUS_DELAY_COUNT 2500
#define MCDI_STATUS_SLEEP_MS \ #define MCDI_STATUS_SLEEP_MS \
(MCDI_STATUS_DELAY_US * MCDI_STATUS_DELAY_COUNT / 1000) (MCDI_STATUS_DELAY_US * MCDI_STATUS_DELAY_COUNT / 1000)