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/ef10.c | |
| parent | f74d1995192cd0834eea13a8287a3e26a7317b6d (diff) | |
| download | linux-a707d18851a3bab517e21a6449806e468703bc3d.tar.gz linux-a707d18851a3bab517e21a6449806e468703bc3d.tar.xz | |
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/ef10.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/ef10.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index f117e0b5b5ad..dccbbd323616 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -2643,6 +2643,56 @@ fail1: return rc; } +static int efx_ef10_rx_pull_rss_config(struct efx_nic *efx) +{ + struct efx_ef10_nic_data *nic_data = efx->nic_data; + MCDI_DECLARE_BUF(inbuf, MC_CMD_RSS_CONTEXT_GET_TABLE_IN_LEN); + MCDI_DECLARE_BUF(tablebuf, MC_CMD_RSS_CONTEXT_GET_TABLE_OUT_LEN); + MCDI_DECLARE_BUF(keybuf, MC_CMD_RSS_CONTEXT_GET_KEY_OUT_LEN); + size_t outlen; + int rc, i; + + BUILD_BUG_ON(MC_CMD_RSS_CONTEXT_GET_TABLE_IN_LEN != + MC_CMD_RSS_CONTEXT_GET_KEY_IN_LEN); + + if (nic_data->rx_rss_context == EFX_EF10_RSS_CONTEXT_INVALID) + return -ENOENT; + + MCDI_SET_DWORD(inbuf, RSS_CONTEXT_GET_TABLE_IN_RSS_CONTEXT_ID, + nic_data->rx_rss_context); + BUILD_BUG_ON(ARRAY_SIZE(efx->rx_indir_table) != + MC_CMD_RSS_CONTEXT_GET_TABLE_OUT_INDIRECTION_TABLE_LEN); + rc = efx_mcdi_rpc(efx, MC_CMD_RSS_CONTEXT_GET_TABLE, inbuf, sizeof(inbuf), + tablebuf, sizeof(tablebuf), &outlen); + if (rc != 0) + return rc; + + if (WARN_ON(outlen != MC_CMD_RSS_CONTEXT_GET_TABLE_OUT_LEN)) + return -EIO; + + for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++) + efx->rx_indir_table[i] = MCDI_PTR(tablebuf, + RSS_CONTEXT_GET_TABLE_OUT_INDIRECTION_TABLE)[i]; + + MCDI_SET_DWORD(inbuf, RSS_CONTEXT_GET_KEY_IN_RSS_CONTEXT_ID, + nic_data->rx_rss_context); + BUILD_BUG_ON(ARRAY_SIZE(efx->rx_hash_key) != + MC_CMD_RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY_LEN); + rc = efx_mcdi_rpc(efx, MC_CMD_RSS_CONTEXT_GET_KEY, inbuf, sizeof(inbuf), + keybuf, sizeof(keybuf), &outlen); + if (rc != 0) + return rc; + + if (WARN_ON(outlen != MC_CMD_RSS_CONTEXT_GET_KEY_OUT_LEN)) + return -EIO; + + for (i = 0; i < ARRAY_SIZE(efx->rx_hash_key); ++i) + efx->rx_hash_key[i] = MCDI_PTR( + keybuf, RSS_CONTEXT_GET_KEY_OUT_TOEPLITZ_KEY)[i]; + + return 0; +} + static int efx_ef10_pf_rx_push_rss_config(struct efx_nic *efx, bool user, const u32 *rx_indir_table, const u8 *key) @@ -5643,6 +5693,7 @@ const struct efx_nic_type efx_hunt_a0_vf_nic_type = { .tx_write = efx_ef10_tx_write, .tx_limit_len = efx_ef10_tx_limit_len, .rx_push_rss_config = efx_ef10_vf_rx_push_rss_config, + .rx_pull_rss_config = efx_ef10_rx_pull_rss_config, .rx_probe = efx_ef10_rx_probe, .rx_init = efx_ef10_rx_init, .rx_remove = efx_ef10_rx_remove, @@ -5751,6 +5802,7 @@ const struct efx_nic_type efx_hunt_a0_nic_type = { .tx_write = efx_ef10_tx_write, .tx_limit_len = efx_ef10_tx_limit_len, .rx_push_rss_config = efx_ef10_pf_rx_push_rss_config, + .rx_pull_rss_config = efx_ef10_rx_pull_rss_config, .rx_probe = efx_ef10_rx_probe, .rx_init = efx_ef10_rx_init, .rx_remove = efx_ef10_rx_remove, |