diff options
| author |   Edward Cree <ecree@solarflare.com> | 2020-09-11 23:39:28 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-09-11 17:15:22 -0700 |
| commit | 85d43fdb57919b044e5f4a0ee0c92ff419cf21d5 (patch) | |
| tree | 70d7fd1adfc01166f250331c9f5fbd831f440d25 /drivers/net/ethernet/sfc/ef10.c | |
| parent | sfc: define inner/outer csum offload TXQ types (diff) | |
| download | linux-dev-85d43fdb57919b044e5f4a0ee0c92ff419cf21d5.tar.xz linux-dev-85d43fdb57919b044e5f4a0ee0c92ff419cf21d5.zip | |
sfc: create inner-csum queues on EF10 if supported
If the MC reports the VXLAN_NVGRE datapath capability, then these queues
can be used for checksum offload of encapsulated packets.
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 | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index 2ae85d3aa4b2..1c1bc0dec757 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -601,10 +601,14 @@ static int efx_ef10_probe(struct efx_nic *efx) efx_ef10_read_licensed_features(efx); /* We can have one VI for each vi_stride-byte region. - * However, until we use TX option descriptors we need two TX queues - * per channel. + * However, until we use TX option descriptors we need up to four + * TX queues per channel for different checksumming combinations. */ - efx->tx_queues_per_channel = 2; + if (nic_data->datapath_caps & + (1 << MC_CMD_GET_CAPABILITIES_OUT_VXLAN_NVGRE_LBN)) + efx->tx_queues_per_channel = 4; + else + efx->tx_queues_per_channel = 2; efx->max_vis = efx_ef10_mem_map_size(efx) / efx->vi_stride; if (!efx->max_vis) { netif_err(efx, drv, efx->net_dev, "error determining max VIs\n"); @@ -2146,7 +2150,9 @@ static int efx_ef10_irq_test_generate(struct efx_nic *efx) static int efx_ef10_tx_probe(struct efx_tx_queue *tx_queue) { - tx_queue->type = tx_queue->label & EFX_TXQ_TYPE_OUTER_CSUM; + /* low two bits of label are what we want for type */ + BUILD_BUG_ON((EFX_TXQ_TYPE_OUTER_CSUM | EFX_TXQ_TYPE_INNER_CSUM) != 3); + tx_queue->type = tx_queue->label & 3; return efx_nic_alloc_buffer(tx_queue->efx, &tx_queue->txd.buf, (tx_queue->ptr_mask + 1) * sizeof(efx_qword_t), @@ -2256,6 +2262,7 @@ static u32 efx_ef10_tso_versions(struct efx_nic *efx) static void efx_ef10_tx_init(struct efx_tx_queue *tx_queue) { bool csum_offload = tx_queue->type & EFX_TXQ_TYPE_OUTER_CSUM; + bool inner_csum = tx_queue->type & EFX_TXQ_TYPE_INNER_CSUM; struct efx_channel *channel = tx_queue->channel; struct efx_nic *efx = tx_queue->efx; struct efx_ef10_nic_data *nic_data; @@ -2282,7 +2289,7 @@ static void efx_ef10_tx_init(struct efx_tx_queue *tx_queue) * TSOv2 cannot be used with Hardware timestamping, and is never needed * for XDP tx. */ - if (csum_offload && (nic_data->datapath_caps2 & + if ((csum_offload || inner_csum) && (nic_data->datapath_caps2 & (1 << MC_CMD_GET_CAPABILITIES_V2_OUT_TX_TSO_V2_LBN)) && !tx_queue->timestamping && !tx_queue->xdp_tx) { tso_v2 = true; @@ -2303,12 +2310,14 @@ static void efx_ef10_tx_init(struct efx_tx_queue *tx_queue) tx_queue->buffer[0].flags = EFX_TX_BUF_OPTION; tx_queue->insert_count = 1; txd = efx_tx_desc(tx_queue, 0); - EFX_POPULATE_QWORD_5(*txd, + EFX_POPULATE_QWORD_7(*txd, ESF_DZ_TX_DESC_IS_OPT, true, ESF_DZ_TX_OPTION_TYPE, ESE_DZ_TX_OPTION_DESC_CRC_CSUM, ESF_DZ_TX_OPTION_UDP_TCP_CSUM, csum_offload, - ESF_DZ_TX_OPTION_IP_CSUM, csum_offload, + ESF_DZ_TX_OPTION_IP_CSUM, csum_offload && !tso_v2, + ESF_DZ_TX_OPTION_INNER_UDP_TCP_CSUM, inner_csum, + ESF_DZ_TX_OPTION_INNER_IP_CSUM, inner_csum && !tso_v2, ESF_DZ_TX_TIMESTAMP, tx_queue->timestamping); tx_queue->write_count = 1; |