diff options
| author |   Edward Cree <ecree@solarflare.com> | 2017-12-21 09:00:26 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-12-21 15:14:26 -0500 |
| commit | c1be48214543c4e5267c43d2c00ac2d9bb671381 (patch) | |
| tree | 6c7e91d27b02742e0615d799a338e0bc3bd811ff /drivers/net/ethernet/sfc/efx.c | |
| parent | sfc: update MCDI protocol headers (diff) | |
| download | linux-dev-c1be48214543c4e5267c43d2c00ac2d9bb671381.tar.xz linux-dev-c1be48214543c4e5267c43d2c00ac2d9bb671381.zip | |
sfc: support variable number of MAC stats
Medford2 NICs support more than MC_CMD_MAC_NSTATS stats, and report the new
count in a field of MC_CMD_GET_CAPABILITIES_V4. This also means that the
end generation count moves (it is, as before, the last 64 bits of the DMA
buffer, but that is no longer MC_CMD_MAC_GENERATION_END).
So read num_mac_stats from the GET_CAPABILITIES response, if present;
otherwise assume MC_CMD_MAC_NSTATS; and always use num_mac_stats - 1 rather
than MC_CMD_MAC_GENERATION_END.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/efx.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/efx.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index 7bcbedce07a5..3780161de5a1 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -2983,6 +2983,8 @@ static int efx_init_struct(struct efx_nic *efx, efx->type->rx_ts_offset - efx->type->rx_prefix_size; spin_lock_init(&efx->stats_lock); efx->vi_stride = EFX_DEFAULT_VI_STRIDE; + efx->num_mac_stats = MC_CMD_MAC_NSTATS; + BUILD_BUG_ON(MC_CMD_MAC_NSTATS - 1 != MC_CMD_MAC_GENERATION_END); mutex_init(&efx->mac_lock); efx->phy_op = &efx_dummy_phy_operations; efx->mdio.dev = net_dev; |