sfc: Add AER and EEH support for Siena

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The Linux side of EEH is triggered by MMIO reads, but this
driver's data path does not issue any MMIO reads (except in
legacy interrupt mode).  Therefore add a monitor function
to poll EEH periodically.

When preparing to reset the device based on our own error
detection, also poll EEH and defer to its recovery mechanism
if appropriate.

[bwh: Use a separate condition for the initial link poll; fix some
 style errors]
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

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This commit is contained in:

Alexandre Rames 2013-01-14 17:20:22 +00:00 • committed by Ben Hutchings

parent 634ab72c39

commit 626950db84

4 changed files with 216 additions and 26 deletions

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207

drivers/net/ethernet/sfc/efx.c

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12

drivers/net/ethernet/sfc/enum.h

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1

drivers/net/ethernet/sfc/net_driver.h

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22

drivers/net/ethernet/sfc/siena.c

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