From: Nithin Dabilpuram Date: Sun, 2 Jun 2019 09:51:32 +0000 (+0530) Subject: net/octeontx2: add Rx multi segment version X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=12e4328ee4be8a73c2c23bd66d96f2bd658368f4;p=dpdk.git net/octeontx2: add Rx multi segment version Add multi segment version of packet Receive function. Signed-off-by: Nithin Dabilpuram Signed-off-by: Pavan Nikhilesh --- diff --git a/doc/guides/nics/features/octeontx2.ini b/doc/guides/nics/features/octeontx2.ini index 211ff93e72..3280cba78f 100644 --- a/doc/guides/nics/features/octeontx2.ini +++ b/doc/guides/nics/features/octeontx2.ini @@ -24,6 +24,8 @@ Inner RSS = Y VLAN filter = Y Flow control = Y Flow API = Y +Jumbo frame = Y +Scattered Rx = Y VLAN offload = Y QinQ offload = Y Packet type parsing = Y diff --git a/doc/guides/nics/features/octeontx2_vec.ini b/doc/guides/nics/features/octeontx2_vec.ini index 967a3757de..315722e60e 100644 --- a/doc/guides/nics/features/octeontx2_vec.ini +++ b/doc/guides/nics/features/octeontx2_vec.ini @@ -24,6 +24,7 @@ Inner RSS = Y VLAN filter = Y Flow control = Y Flow API = Y +Jumbo frame = Y VLAN offload = Y QinQ offload = Y Packet type parsing = Y diff --git a/doc/guides/nics/features/octeontx2_vf.ini b/doc/guides/nics/features/octeontx2_vf.ini index 884167c88b..17b223221c 100644 --- a/doc/guides/nics/features/octeontx2_vf.ini +++ b/doc/guides/nics/features/octeontx2_vf.ini @@ -19,6 +19,8 @@ RSS reta update = Y Inner RSS = Y VLAN filter = Y Flow API = Y +Jumbo frame = Y +Scattered Rx = Y VLAN offload = Y QinQ offload = Y Packet type parsing = Y diff --git a/doc/guides/nics/octeontx2.rst b/doc/guides/nics/octeontx2.rst index 457980acfb..4556187cee 100644 --- a/doc/guides/nics/octeontx2.rst +++ b/doc/guides/nics/octeontx2.rst @@ -18,6 +18,7 @@ Features of the OCTEON TX2 Ethdev PMD are: - Packet type information - Promiscuous mode +- Jumbo frames - SR-IOV VF - Lock-free Tx queue - Multiple queues for TX and RX @@ -28,6 +29,7 @@ Features of the OCTEON TX2 Ethdev PMD are: - Port hardware statistics - Link state information - Link flow control +- Scatter-Gather IO support - Debug utilities - Context dump and error interrupt support - IEEE1588 timestamping diff --git a/drivers/net/octeontx2/otx2_rx.c b/drivers/net/octeontx2/otx2_rx.c index 4d5223e105..fca182785c 100644 --- a/drivers/net/octeontx2/otx2_rx.c +++ b/drivers/net/octeontx2/otx2_rx.c @@ -92,6 +92,14 @@ otx2_nix_recv_pkts_ ## name(void *rx_queue, \ { \ return nix_recv_pkts(rx_queue, rx_pkts, pkts, (flags)); \ } \ + \ +static uint16_t __rte_noinline __hot \ +otx2_nix_recv_pkts_mseg_ ## name(void *rx_queue, \ + struct rte_mbuf **rx_pkts, uint16_t pkts) \ +{ \ + return nix_recv_pkts(rx_queue, rx_pkts, pkts, \ + (flags) | NIX_RX_MULTI_SEG_F); \ +} \ NIX_RX_FASTPATH_MODES #undef R @@ -115,15 +123,32 @@ pick_rx_func(struct rte_eth_dev *eth_dev, void otx2_eth_set_rx_function(struct rte_eth_dev *eth_dev) { + struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev); + const eth_rx_burst_t nix_eth_rx_burst[2][2][2][2][2][2] = { #define R(name, f5, f4, f3, f2, f1, f0, flags) \ [f5][f4][f3][f2][f1][f0] = otx2_nix_recv_pkts_ ## name, +NIX_RX_FASTPATH_MODES +#undef R + }; + + const eth_rx_burst_t nix_eth_rx_burst_mseg[2][2][2][2][2][2] = { +#define R(name, f5, f4, f3, f2, f1, f0, flags) \ + [f5][f4][f3][f2][f1][f0] = otx2_nix_recv_pkts_mseg_ ## name, + NIX_RX_FASTPATH_MODES #undef R }; pick_rx_func(eth_dev, nix_eth_rx_burst); + if (dev->rx_offloads & DEV_RX_OFFLOAD_SCATTER) + pick_rx_func(eth_dev, nix_eth_rx_burst_mseg); + + /* Copy multi seg version with no offload for tear down sequence */ + if (rte_eal_process_type() == RTE_PROC_PRIMARY) + dev->rx_pkt_burst_no_offload = + nix_eth_rx_burst_mseg[0][0][0][0][0][0]; rte_mb(); } diff --git a/drivers/net/octeontx2/otx2_rx.h b/drivers/net/octeontx2/otx2_rx.h index 629768aab7..e150f38d7f 100644 --- a/drivers/net/octeontx2/otx2_rx.h +++ b/drivers/net/octeontx2/otx2_rx.h @@ -23,6 +23,11 @@ #define NIX_RX_OFFLOAD_MARK_UPDATE_F BIT(4) #define NIX_RX_OFFLOAD_TSTAMP_F BIT(5) +/* Flags to control cqe_to_mbuf conversion function. + * Defining it from backwards to denote its been + * not used as offload flags to pick function + */ +#define NIX_RX_MULTI_SEG_F BIT(15) #define NIX_TIMESYNC_RX_OFFSET 8 struct otx2_timesync_info { @@ -133,6 +138,51 @@ nix_update_match_id(const uint16_t match_id, uint64_t ol_flags, return ol_flags; } +static __rte_always_inline void +nix_cqe_xtract_mseg(const struct nix_rx_parse_s *rx, + struct rte_mbuf *mbuf, uint64_t rearm) +{ + const rte_iova_t *iova_list; + struct rte_mbuf *head; + const rte_iova_t *eol; + uint8_t nb_segs; + uint64_t sg; + + sg = *(const uint64_t *)(rx + 1); + nb_segs = (sg >> 48) & 0x3; + mbuf->nb_segs = nb_segs; + mbuf->data_len = sg & 0xFFFF; + sg = sg >> 16; + + eol = ((const rte_iova_t *)(rx + 1) + ((rx->desc_sizem1 + 1) << 1)); + /* Skip SG_S and first IOVA*/ + iova_list = ((const rte_iova_t *)(rx + 1)) + 2; + nb_segs--; + + rearm = rearm & ~0xFFFF; + + head = mbuf; + while (nb_segs) { + mbuf->next = ((struct rte_mbuf *)*iova_list) - 1; + mbuf = mbuf->next; + + __mempool_check_cookies(mbuf->pool, (void **)&mbuf, 1, 1); + + mbuf->data_len = sg & 0xFFFF; + sg = sg >> 16; + *(uint64_t *)(&mbuf->rearm_data) = rearm; + nb_segs--; + iova_list++; + + if (!nb_segs && (iova_list + 1 < eol)) { + sg = *(const uint64_t *)(iova_list); + nb_segs = (sg >> 48) & 0x3; + head->nb_segs += nb_segs; + iova_list = (const rte_iova_t *)(iova_list + 1); + } + } +} + static __rte_always_inline void otx2_nix_cqe_to_mbuf(const struct nix_cqe_hdr_s *cq, const uint32_t tag, struct rte_mbuf *mbuf, const void *lookup_mem, @@ -178,7 +228,10 @@ otx2_nix_cqe_to_mbuf(const struct nix_cqe_hdr_s *cq, const uint32_t tag, *(uint64_t *)(&mbuf->rearm_data) = val; mbuf->pkt_len = len; - mbuf->data_len = len; + if (flag & NIX_RX_MULTI_SEG_F) + nix_cqe_xtract_mseg(rx, mbuf, val); + else + mbuf->data_len = len; } #define CKSUM_F NIX_RX_OFFLOAD_CHECKSUM_F