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path: root/drivers/net/octeontx2/otx2_ethdev.c
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Diffstat (limited to 'drivers/net/octeontx2/otx2_ethdev.c')
-rw-r--r--drivers/net/octeontx2/otx2_ethdev.c222
1 files changed, 220 insertions, 2 deletions
diff --git a/drivers/net/octeontx2/otx2_ethdev.c b/drivers/net/octeontx2/otx2_ethdev.c
index 696c85c..1a6afed 100644
--- a/drivers/net/octeontx2/otx2_ethdev.c
+++ b/drivers/net/octeontx2/otx2_ethdev.c
@@ -27,9 +27,14 @@ nix_get_rx_offload_capa(struct otx2_eth_dev *dev)
static inline uint64_t
nix_get_tx_offload_capa(struct otx2_eth_dev *dev)
{
- RTE_SET_USED(dev);
+ uint64_t capa = NIX_TX_OFFLOAD_CAPA;
- return NIX_TX_OFFLOAD_CAPA;
+ /* TSO not supported for earlier chip revisions */
+ if (otx2_dev_is_96xx_A0(dev) || otx2_dev_is_95xx_Ax(dev))
+ capa &= ~(DEV_TX_OFFLOAD_TCP_TSO |
+ DEV_TX_OFFLOAD_VXLAN_TNL_TSO |
+ DEV_TX_OFFLOAD_GENEVE_TNL_TSO);
+ return capa;
}
static const struct otx2_dev_ops otx2_dev_ops = {
@@ -643,6 +648,18 @@ nix_tx_offload_flags(struct rte_eth_dev *eth_dev)
if (conf & DEV_TX_OFFLOAD_MULTI_SEGS)
flags |= NIX_TX_MULTI_SEG_F;
+ /* Enable Inner checksum for TSO */
+ if (conf & DEV_TX_OFFLOAD_TCP_TSO)
+ flags |= (NIX_TX_OFFLOAD_TSO_F |
+ NIX_TX_OFFLOAD_L3_L4_CSUM_F);
+
+ /* Enable Inner and Outer checksum for Tunnel TSO */
+ if (conf & (DEV_TX_OFFLOAD_VXLAN_TNL_TSO |
+ DEV_TX_OFFLOAD_GENEVE_TNL_TSO))
+ flags |= (NIX_TX_OFFLOAD_TSO_F |
+ NIX_TX_OFFLOAD_OL3_OL4_CSUM_F |
+ NIX_TX_OFFLOAD_L3_L4_CSUM_F);
+
if ((dev->rx_offloads & DEV_RX_OFFLOAD_TIMESTAMP))
flags |= NIX_TX_OFFLOAD_TSTAMP_F;
@@ -1205,6 +1222,201 @@ nix_set_nop_rxtx_function(struct rte_eth_dev *eth_dev)
rte_mb();
}
+static void
+nix_lso_tcp(struct nix_lso_format_cfg *req, bool v4)
+{
+ volatile struct nix_lso_format *field;
+
+ /* Format works only with TCP packet marked by OL3/OL4 */
+ field = (volatile struct nix_lso_format *)&req->fields[0];
+ req->field_mask = NIX_LSO_FIELD_MASK;
+ /* Outer IPv4/IPv6 */
+ field->layer = NIX_TXLAYER_OL3;
+ field->offset = v4 ? 2 : 4;
+ field->sizem1 = 1; /* 2B */
+ field->alg = NIX_LSOALG_ADD_PAYLEN;
+ field++;
+ if (v4) {
+ /* IPID field */
+ field->layer = NIX_TXLAYER_OL3;
+ field->offset = 4;
+ field->sizem1 = 1;
+ /* Incremented linearly per segment */
+ field->alg = NIX_LSOALG_ADD_SEGNUM;
+ field++;
+ }
+
+ /* TCP sequence number update */
+ field->layer = NIX_TXLAYER_OL4;
+ field->offset = 4;
+ field->sizem1 = 3; /* 4 bytes */
+ field->alg = NIX_LSOALG_ADD_OFFSET;
+ field++;
+ /* TCP flags field */
+ field->layer = NIX_TXLAYER_OL4;
+ field->offset = 12;
+ field->sizem1 = 1;
+ field->alg = NIX_LSOALG_TCP_FLAGS;
+ field++;
+}
+
+static void
+nix_lso_udp_tun_tcp(struct nix_lso_format_cfg *req,
+ bool outer_v4, bool inner_v4)
+{
+ volatile struct nix_lso_format *field;
+
+ field = (volatile struct nix_lso_format *)&req->fields[0];
+ req->field_mask = NIX_LSO_FIELD_MASK;
+ /* Outer IPv4/IPv6 len */
+ field->layer = NIX_TXLAYER_OL3;
+ field->offset = outer_v4 ? 2 : 4;
+ field->sizem1 = 1; /* 2B */
+ field->alg = NIX_LSOALG_ADD_PAYLEN;
+ field++;
+ if (outer_v4) {
+ /* IPID */
+ field->layer = NIX_TXLAYER_OL3;
+ field->offset = 4;
+ field->sizem1 = 1;
+ /* Incremented linearly per segment */
+ field->alg = NIX_LSOALG_ADD_SEGNUM;
+ field++;
+ }
+
+ /* Outer UDP length */
+ field->layer = NIX_TXLAYER_OL4;
+ field->offset = 4;
+ field->sizem1 = 1;
+ field->alg = NIX_LSOALG_ADD_PAYLEN;
+ field++;
+
+ /* Inner IPv4/IPv6 */
+ field->layer = NIX_TXLAYER_IL3;
+ field->offset = inner_v4 ? 2 : 4;
+ field->sizem1 = 1; /* 2B */
+ field->alg = NIX_LSOALG_ADD_PAYLEN;
+ field++;
+ if (inner_v4) {
+ /* IPID field */
+ field->layer = NIX_TXLAYER_IL3;
+ field->offset = 4;
+ field->sizem1 = 1;
+ /* Incremented linearly per segment */
+ field->alg = NIX_LSOALG_ADD_SEGNUM;
+ field++;
+ }
+
+ /* TCP sequence number update */
+ field->layer = NIX_TXLAYER_IL4;
+ field->offset = 4;
+ field->sizem1 = 3; /* 4 bytes */
+ field->alg = NIX_LSOALG_ADD_OFFSET;
+ field++;
+
+ /* TCP flags field */
+ field->layer = NIX_TXLAYER_IL4;
+ field->offset = 12;
+ field->sizem1 = 1;
+ field->alg = NIX_LSOALG_TCP_FLAGS;
+ field++;
+}
+
+static int
+nix_setup_lso_formats(struct otx2_eth_dev *dev)
+{
+ struct otx2_mbox *mbox = dev->mbox;
+ struct nix_lso_format_cfg_rsp *rsp;
+ struct nix_lso_format_cfg *req;
+ uint8_t base;
+ int rc;
+
+ /* Skip if TSO was not requested */
+ if (!(dev->tx_offload_flags & NIX_TX_OFFLOAD_TSO_F))
+ return 0;
+ /*
+ * IPv4/TCP LSO
+ */
+ req = otx2_mbox_alloc_msg_nix_lso_format_cfg(mbox);
+ nix_lso_tcp(req, true);
+ rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
+ if (rc)
+ return rc;
+
+ base = rsp->lso_format_idx;
+ if (base != NIX_LSO_FORMAT_IDX_TSOV4)
+ return -EFAULT;
+ dev->lso_base_idx = base;
+ otx2_nix_dbg("tcpv4 lso fmt=%u", base);
+
+
+ /*
+ * IPv6/TCP LSO
+ */
+ req = otx2_mbox_alloc_msg_nix_lso_format_cfg(mbox);
+ nix_lso_tcp(req, false);
+ rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
+ if (rc)
+ return rc;
+
+ if (rsp->lso_format_idx != base + 1)
+ return -EFAULT;
+ otx2_nix_dbg("tcpv6 lso fmt=%u\n", base + 1);
+
+ /*
+ * IPv4/UDP/TUN HDR/IPv4/TCP LSO
+ */
+ req = otx2_mbox_alloc_msg_nix_lso_format_cfg(mbox);
+ nix_lso_udp_tun_tcp(req, true, true);
+ rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
+ if (rc)
+ return rc;
+
+ if (rsp->lso_format_idx != base + 2)
+ return -EFAULT;
+ otx2_nix_dbg("udp tun v4v4 fmt=%u\n", base + 2);
+
+ /*
+ * IPv4/UDP/TUN HDR/IPv6/TCP LSO
+ */
+ req = otx2_mbox_alloc_msg_nix_lso_format_cfg(mbox);
+ nix_lso_udp_tun_tcp(req, true, false);
+ rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
+ if (rc)
+ return rc;
+
+ if (rsp->lso_format_idx != base + 3)
+ return -EFAULT;
+ otx2_nix_dbg("udp tun v4v6 fmt=%u\n", base + 3);
+
+ /*
+ * IPv6/UDP/TUN HDR/IPv4/TCP LSO
+ */
+ req = otx2_mbox_alloc_msg_nix_lso_format_cfg(mbox);
+ nix_lso_udp_tun_tcp(req, false, true);
+ rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
+ if (rc)
+ return rc;
+
+ if (rsp->lso_format_idx != base + 4)
+ return -EFAULT;
+ otx2_nix_dbg("udp tun v6v4 fmt=%u\n", base + 4);
+
+ /*
+ * IPv6/UDP/TUN HDR/IPv6/TCP LSO
+ */
+ req = otx2_mbox_alloc_msg_nix_lso_format_cfg(mbox);
+ nix_lso_udp_tun_tcp(req, false, false);
+ rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
+ if (rc)
+ return rc;
+ if (rsp->lso_format_idx != base + 5)
+ return -EFAULT;
+ otx2_nix_dbg("udp tun v6v6 fmt=%u\n", base + 5);
+
+ return 0;
+}
+
static int
otx2_nix_configure(struct rte_eth_dev *eth_dev)
{
@@ -1292,6 +1504,12 @@ otx2_nix_configure(struct rte_eth_dev *eth_dev)
goto fail_offloads;
}
+ rc = nix_setup_lso_formats(dev);
+ if (rc) {
+ otx2_err("failed to setup nix lso format fields, rc=%d", rc);
+ goto free_nix_lf;
+ }
+
/* Configure RSS */
rc = otx2_nix_rss_config(eth_dev);
if (rc) {