diff options
| author | Edward Cree <ecree@solarflare.com> | 2017-01-17 12:02:12 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-01-17 15:49:52 -0500 |
| commit | a707d18851a3bab517e21a6449806e468703bc3d (patch) | |
| tree | 96ef17cb3a7add82649c6c0ed61ae32fb40ce357 /drivers/net/ethernet/sfc/siena.c | |
| parent | f74d1995192cd0834eea13a8287a3e26a7317b6d (diff) | |
| download | linux-a707d18851a3bab517e21a6449806e468703bc3d.tar.bz2 | |
sfc: read back RX hash config from the NIC when querying it with ethtool -x
Ensures that we report the key and indirection table the NIC is using,
rather than (if setting them failed earlier) what we wanted it to use.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/siena.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/siena.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/siena.c b/drivers/net/ethernet/sfc/siena.c index 0606aa290879..af7cd8565a41 100644 --- a/drivers/net/ethernet/sfc/siena.c +++ b/drivers/net/ethernet/sfc/siena.c @@ -332,6 +332,25 @@ fail1: return rc; } +static int siena_rx_pull_rss_config(struct efx_nic *efx) +{ + efx_oword_t temp; + + /* Read from IPv6 RSS key as that's longer (the IPv4 key is just the + * first 128 bits of the same key, assuming it's been set by + * siena_rx_push_rss_config, below) + */ + efx_reado(efx, &temp, FR_CZ_RX_RSS_IPV6_REG1); + memcpy(efx->rx_hash_key, &temp, sizeof(temp)); + efx_reado(efx, &temp, FR_CZ_RX_RSS_IPV6_REG2); + memcpy(efx->rx_hash_key + sizeof(temp), &temp, sizeof(temp)); + efx_reado(efx, &temp, FR_CZ_RX_RSS_IPV6_REG3); + memcpy(efx->rx_hash_key + 2 * sizeof(temp), &temp, + FRF_CZ_RX_RSS_IPV6_TKEY_HI_WIDTH / 8); + efx_farch_rx_pull_indir_table(efx); + return 0; +} + static int siena_rx_push_rss_config(struct efx_nic *efx, bool user, const u32 *rx_indir_table, const u8 *key) { @@ -981,6 +1000,7 @@ const struct efx_nic_type siena_a0_nic_type = { .tx_write = efx_farch_tx_write, .tx_limit_len = efx_farch_tx_limit_len, .rx_push_rss_config = siena_rx_push_rss_config, + .rx_pull_rss_config = siena_rx_pull_rss_config, .rx_probe = efx_farch_rx_probe, .rx_init = efx_farch_rx_init, .rx_remove = efx_farch_rx_remove, |