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sfc: warn if other functions have been reset by MCFW

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When enabling the workaround for cascaded multicast filters, the MC
 can reset other functions if they have already inserted filters.
 In that case, the workaround has been enabled, but print an info
 message in the log recording that other functions had to be reset.

As other functions were reset, the MC will have incremented its boot
 count, so also increment the warm_boot_count on the function which
 enabled the workaround, as that function won't have received an MC
 reboot event and does not need to reset.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Pieczko 2015-07-21 15:10:02 +01:00 committed by David S. Miller
parent 34ccfe6f8a
commit 5a55a72abe
1 changed files with 14 additions and 3 deletions
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17
drivers/net/ethernet/sfc/ef10.c
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@ -2291,13 +2291,24 @@ static int efx_ef10_ev_init(struct efx_channel *channel)
if (implemented & MC_CMD_GET_WORKAROUNDS_OUT_BUG26807 &&
!nic_data->workaround_26807) {
unsigned int flags;
rc = efx_mcdi_set_workaround(efx,
MC_CMD_WORKAROUND_BUG26807,
true, NULL);
if (!rc)
true, &flags);
if (!rc) {
if (flags &
1 << MC_CMD_WORKAROUND_EXT_OUT_FLR_DONE_LBN) {
netif_info(efx, drv, efx->net_dev,
"other functions on NIC have been reset\n");
/* MC's boot count has incremented */
++nic_data->warm_boot_count;
}
nic_data->workaround_26807 = true;
else if (rc == -EPERM)
} else if (rc == -EPERM) {
rc = 0;
}
}
}