/* SPDX-License-Identifier: BSD-3-Clause
*
- * Copyright (c) 2016-2018 Solarflare Communications Inc.
- * All rights reserved.
+ * Copyright(c) 2019-2021 Xilinx, Inc.
+ * Copyright(c) 2016-2019 Solarflare Communications Inc.
*
* This software was jointly developed between OKTET Labs (under contract
* for Solarflare) and Solarflare Communications, Inc.
#include "efx_regs.h"
#include "efx_regs_ef10.h"
+#include "sfc_debug.h"
#include "sfc_tweak.h"
#include "sfc_dp_rx.h"
#include "sfc_kvargs.h"
#include "sfc_ef10.h"
+#define SFC_EF10_RX_EV_ENCAP_SUPPORT 1
+#include "sfc_ef10_rx_ev.h"
+
#define sfc_ef10_rx_err(dpq, ...) \
SFC_DP_LOG(SFC_KVARG_DATAPATH_EF10, ERR, dpq, __VA_ARGS__)
+#define sfc_ef10_rx_info(dpq, ...) \
+ SFC_DP_LOG(SFC_KVARG_DATAPATH_EF10, INFO, dpq, __VA_ARGS__)
+
/**
* Maximum number of descriptors/buffers in the Rx ring.
* It should guarantee that corresponding event queue never overfill.
#define SFC_EF10_RXQ_NOT_RUNNING 0x2
#define SFC_EF10_RXQ_EXCEPTION 0x4
#define SFC_EF10_RXQ_RSS_HASH 0x8
+#define SFC_EF10_RXQ_FLAG_INTR_EN 0x10
unsigned int ptr_mask;
- unsigned int prepared;
+ unsigned int pending;
unsigned int completed;
unsigned int evq_read_ptr;
+ unsigned int evq_read_ptr_primed;
efx_qword_t *evq_hw_ring;
struct sfc_ef10_rx_sw_desc *sw_ring;
uint64_t rearm_data;
+ struct rte_mbuf *scatter_pkt;
+ volatile void *evq_prime;
uint16_t prefix_size;
/* Used on refill */
return container_of(dp_rxq, struct sfc_ef10_rxq, dp);
}
+static void
+sfc_ef10_rx_qprime(struct sfc_ef10_rxq *rxq)
+{
+ sfc_ef10_ev_qprime(rxq->evq_prime, rxq->evq_read_ptr, rxq->ptr_mask);
+ rxq->evq_read_ptr_primed = rxq->evq_read_ptr;
+}
+
static void
sfc_ef10_rx_qrefill(struct sfc_ef10_rxq *rxq)
{
struct sfc_ef10_rx_sw_desc *rxd;
rte_iova_t phys_addr;
+ __rte_mbuf_raw_sanity_check(m);
+
SFC_ASSERT((id & ~ptr_mask) == 0);
rxd = &rxq->sw_ring[id];
rxd->mbuf = m;
SFC_ASSERT(rxq->added != added);
rxq->added = added;
- sfc_ef10_rx_qpush(rxq->doorbell, added, ptr_mask);
+ sfc_ef10_rx_qpush(rxq->doorbell, added, ptr_mask, &rxq->dp.dpq.dbells);
}
static void
}
}
-static uint16_t
-sfc_ef10_rx_prepared(struct sfc_ef10_rxq *rxq, struct rte_mbuf **rx_pkts,
- uint16_t nb_pkts)
+static struct rte_mbuf **
+sfc_ef10_rx_pending(struct sfc_ef10_rxq *rxq, struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts)
{
- uint16_t n_rx_pkts = RTE_MIN(nb_pkts, rxq->prepared);
- unsigned int completed = rxq->completed;
- unsigned int i;
-
- rxq->prepared -= n_rx_pkts;
- rxq->completed = completed + n_rx_pkts;
-
- for (i = 0; i < n_rx_pkts; ++i, ++completed)
- rx_pkts[i] = rxq->sw_ring[completed & rxq->ptr_mask].mbuf;
-
- return n_rx_pkts;
-}
+ uint16_t n_rx_pkts = RTE_MIN(nb_pkts, rxq->pending - rxq->completed);
-static void
-sfc_ef10_rx_ev_to_offloads(const efx_qword_t rx_ev, struct rte_mbuf *m,
- uint64_t ol_mask)
-{
- uint32_t tun_ptype = 0;
- /* Which event bit is mapped to PKT_RX_IP_CKSUM_* */
- int8_t ip_csum_err_bit;
- /* Which event bit is mapped to PKT_RX_L4_CKSUM_* */
- int8_t l4_csum_err_bit;
- uint32_t l2_ptype = 0;
- uint32_t l3_ptype = 0;
- uint32_t l4_ptype = 0;
- uint64_t ol_flags = 0;
-
- if (unlikely(EFX_TEST_QWORD_BIT(rx_ev, ESF_DZ_RX_PARSE_INCOMPLETE_LBN)))
- goto done;
+ SFC_ASSERT(rxq->pending == rxq->completed || rxq->scatter_pkt == NULL);
- switch (EFX_QWORD_FIELD(rx_ev, ESF_EZ_RX_ENCAP_HDR)) {
- default:
- /* Unexpected encapsulation tag class */
- SFC_ASSERT(false);
- /* FALLTHROUGH */
- case ESE_EZ_ENCAP_HDR_NONE:
- break;
- case ESE_EZ_ENCAP_HDR_VXLAN:
- /*
- * It is definitely UDP, but we have no information
- * about IPv4 vs IPv6 and VLAN tagging.
- */
- tun_ptype = RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L4_UDP;
- break;
- case ESE_EZ_ENCAP_HDR_GRE:
- /*
- * We have no information about IPv4 vs IPv6 and VLAN tagging.
- */
- tun_ptype = RTE_PTYPE_TUNNEL_NVGRE;
- break;
- }
+ if (n_rx_pkts != 0) {
+ unsigned int completed = rxq->completed;
- if (tun_ptype == 0) {
- ip_csum_err_bit = ESF_DZ_RX_IPCKSUM_ERR_LBN;
- l4_csum_err_bit = ESF_DZ_RX_TCPUDP_CKSUM_ERR_LBN;
- } else {
- ip_csum_err_bit = ESF_EZ_RX_IP_INNER_CHKSUM_ERR_LBN;
- l4_csum_err_bit = ESF_EZ_RX_TCP_UDP_INNER_CHKSUM_ERR_LBN;
- if (unlikely(EFX_TEST_QWORD_BIT(rx_ev,
- ESF_DZ_RX_IPCKSUM_ERR_LBN)))
- ol_flags |= PKT_RX_EIP_CKSUM_BAD;
- }
+ rxq->completed = completed + n_rx_pkts;
- switch (EFX_QWORD_FIELD(rx_ev, ESF_DZ_RX_ETH_TAG_CLASS)) {
- case ESE_DZ_ETH_TAG_CLASS_NONE:
- l2_ptype = (tun_ptype == 0) ? RTE_PTYPE_L2_ETHER :
- RTE_PTYPE_INNER_L2_ETHER;
- break;
- case ESE_DZ_ETH_TAG_CLASS_VLAN1:
- l2_ptype = (tun_ptype == 0) ? RTE_PTYPE_L2_ETHER_VLAN :
- RTE_PTYPE_INNER_L2_ETHER_VLAN;
- break;
- case ESE_DZ_ETH_TAG_CLASS_VLAN2:
- l2_ptype = (tun_ptype == 0) ? RTE_PTYPE_L2_ETHER_QINQ :
- RTE_PTYPE_INNER_L2_ETHER_QINQ;
- break;
- default:
- /* Unexpected Eth tag class */
- SFC_ASSERT(false);
+ do {
+ *rx_pkts++ =
+ rxq->sw_ring[completed++ & rxq->ptr_mask].mbuf;
+ } while (completed != rxq->completed);
}
- switch (EFX_QWORD_FIELD(rx_ev, ESF_DZ_RX_L3_CLASS)) {
- case ESE_DZ_L3_CLASS_IP4_FRAG:
- l4_ptype = (tun_ptype == 0) ? RTE_PTYPE_L4_FRAG :
- RTE_PTYPE_INNER_L4_FRAG;
- /* FALLTHROUGH */
- case ESE_DZ_L3_CLASS_IP4:
- l3_ptype = (tun_ptype == 0) ? RTE_PTYPE_L3_IPV4_EXT_UNKNOWN :
- RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN;
- ol_flags |= PKT_RX_RSS_HASH |
- ((EFX_TEST_QWORD_BIT(rx_ev, ip_csum_err_bit)) ?
- PKT_RX_IP_CKSUM_BAD : PKT_RX_IP_CKSUM_GOOD);
- break;
- case ESE_DZ_L3_CLASS_IP6_FRAG:
- l4_ptype = (tun_ptype == 0) ? RTE_PTYPE_L4_FRAG :
- RTE_PTYPE_INNER_L4_FRAG;
- /* FALLTHROUGH */
- case ESE_DZ_L3_CLASS_IP6:
- l3_ptype = (tun_ptype == 0) ? RTE_PTYPE_L3_IPV6_EXT_UNKNOWN :
- RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN;
- ol_flags |= PKT_RX_RSS_HASH;
- break;
- case ESE_DZ_L3_CLASS_ARP:
- /* Override Layer 2 packet type */
- /* There is no ARP classification for inner packets */
- if (tun_ptype == 0)
- l2_ptype = RTE_PTYPE_L2_ETHER_ARP;
- break;
- default:
- /* Unexpected Layer 3 class */
- SFC_ASSERT(false);
- }
-
- /*
- * RX_L4_CLASS is 3 bits wide on Huntington and Medford, but is only
- * 2 bits wide on Medford2. Check it is safe to use the Medford2 field
- * and values for all EF10 controllers.
- */
- RTE_BUILD_BUG_ON(ESF_FZ_RX_L4_CLASS_LBN != ESF_DE_RX_L4_CLASS_LBN);
- switch (EFX_QWORD_FIELD(rx_ev, ESF_FZ_RX_L4_CLASS)) {
- case ESE_FZ_L4_CLASS_TCP:
- RTE_BUILD_BUG_ON(ESE_FZ_L4_CLASS_TCP != ESE_DE_L4_CLASS_TCP);
- l4_ptype = (tun_ptype == 0) ? RTE_PTYPE_L4_TCP :
- RTE_PTYPE_INNER_L4_TCP;
- ol_flags |=
- (EFX_TEST_QWORD_BIT(rx_ev, l4_csum_err_bit)) ?
- PKT_RX_L4_CKSUM_BAD : PKT_RX_L4_CKSUM_GOOD;
- break;
- case ESE_FZ_L4_CLASS_UDP:
- RTE_BUILD_BUG_ON(ESE_FZ_L4_CLASS_UDP != ESE_DE_L4_CLASS_UDP);
- l4_ptype = (tun_ptype == 0) ? RTE_PTYPE_L4_UDP :
- RTE_PTYPE_INNER_L4_UDP;
- ol_flags |=
- (EFX_TEST_QWORD_BIT(rx_ev, l4_csum_err_bit)) ?
- PKT_RX_L4_CKSUM_BAD : PKT_RX_L4_CKSUM_GOOD;
- break;
- case ESE_FZ_L4_CLASS_UNKNOWN:
- RTE_BUILD_BUG_ON(ESE_FZ_L4_CLASS_UNKNOWN !=
- ESE_DE_L4_CLASS_UNKNOWN);
- break;
- default:
- /* Unexpected Layer 4 class */
- SFC_ASSERT(false);
- }
-
-done:
- m->ol_flags = ol_flags & ol_mask;
- m->packet_type = tun_ptype | l2_ptype | l3_ptype | l4_ptype;
+ return rx_pkts;
}
+/*
+ * Below Rx pseudo-header (aka Rx prefix) accessors rely on the
+ * following fields layout.
+ */
+static const efx_rx_prefix_layout_t sfc_ef10_rx_prefix_layout = {
+ .erpl_fields = {
+ [EFX_RX_PREFIX_FIELD_RSS_HASH] =
+ { 0, sizeof(uint32_t) * CHAR_BIT, B_FALSE },
+ [EFX_RX_PREFIX_FIELD_LENGTH] =
+ { 8 * CHAR_BIT, sizeof(uint16_t) * CHAR_BIT, B_FALSE },
+ }
+};
static uint16_t
sfc_ef10_rx_pseudo_hdr_get_len(const uint8_t *pseudo_hdr)
{
return rte_le_to_cpu_32(*(const uint32_t *)pseudo_hdr);
}
-static uint16_t
+static struct rte_mbuf **
sfc_ef10_rx_process_event(struct sfc_ef10_rxq *rxq, efx_qword_t rx_ev,
- struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
+ struct rte_mbuf **rx_pkts,
+ struct rte_mbuf ** const rx_pkts_end)
{
const unsigned int ptr_mask = rxq->ptr_mask;
- unsigned int completed = rxq->completed;
+ unsigned int pending = rxq->pending;
unsigned int ready;
struct sfc_ef10_rx_sw_desc *rxd;
struct rte_mbuf *m;
struct rte_mbuf *m0;
- uint16_t n_rx_pkts;
const uint8_t *pseudo_hdr;
- uint16_t pkt_len;
+ uint16_t seg_len;
- ready = (EFX_QWORD_FIELD(rx_ev, ESF_DZ_RX_DSC_PTR_LBITS) - completed) &
+ ready = (EFX_QWORD_FIELD(rx_ev, ESF_DZ_RX_DSC_PTR_LBITS) - pending) &
EFX_MASK32(ESF_DZ_RX_DSC_PTR_LBITS);
- SFC_ASSERT(ready > 0);
+
+ if (ready == 0) {
+ /* Rx abort - it was no enough descriptors for Rx packet */
+ rte_pktmbuf_free(rxq->scatter_pkt);
+ rxq->scatter_pkt = NULL;
+ return rx_pkts;
+ }
+
+ rxq->pending = pending + ready;
if (rx_ev.eq_u64[0] &
rte_cpu_to_le_64((1ull << ESF_DZ_RX_ECC_ERR_LBN) |
(1ull << ESF_DZ_RX_ECRC_ERR_LBN))) {
- SFC_ASSERT(rxq->prepared == 0);
- rxq->completed += ready;
- while (ready-- > 0) {
- rxd = &rxq->sw_ring[completed++ & ptr_mask];
- rte_mempool_put(rxq->refill_mb_pool, rxd->mbuf);
- }
- return 0;
+ SFC_ASSERT(rxq->completed == pending);
+ do {
+ rxd = &rxq->sw_ring[pending++ & ptr_mask];
+ rte_mbuf_raw_free(rxd->mbuf);
+ } while (pending != rxq->pending);
+ rxq->completed = pending;
+ return rx_pkts;
}
- n_rx_pkts = RTE_MIN(ready, nb_pkts);
- rxq->prepared = ready - n_rx_pkts;
- rxq->completed += n_rx_pkts;
+ /* If scattered packet is in progress */
+ if (rxq->scatter_pkt != NULL) {
+ /* Events for scattered packet frags are not merged */
+ SFC_ASSERT(ready == 1);
+ SFC_ASSERT(rxq->completed == pending);
- rxd = &rxq->sw_ring[completed++ & ptr_mask];
+ /* There is no pseudo-header in scatter segments. */
+ seg_len = EFX_QWORD_FIELD(rx_ev, ESF_DZ_RX_BYTES);
- sfc_ef10_rx_prefetch_next(rxq, completed & ptr_mask);
+ rxd = &rxq->sw_ring[pending++ & ptr_mask];
+ m = rxd->mbuf;
- m = rxd->mbuf;
+ __rte_mbuf_raw_sanity_check(m);
+
+ m->data_off = RTE_PKTMBUF_HEADROOM;
+ rte_pktmbuf_data_len(m) = seg_len;
+ rte_pktmbuf_pkt_len(m) = seg_len;
- *rx_pkts++ = m;
+ rxq->scatter_pkt->nb_segs++;
+ rte_pktmbuf_pkt_len(rxq->scatter_pkt) += seg_len;
+ rte_pktmbuf_lastseg(rxq->scatter_pkt)->next = m;
+
+ if (~rx_ev.eq_u64[0] &
+ rte_cpu_to_le_64(1ull << ESF_DZ_RX_CONT_LBN)) {
+ *rx_pkts++ = rxq->scatter_pkt;
+ rxq->scatter_pkt = NULL;
+ }
+ rxq->completed = pending;
+ return rx_pkts;
+ }
+
+ rxd = &rxq->sw_ring[pending++ & ptr_mask];
+
+ sfc_ef10_rx_prefetch_next(rxq, pending & ptr_mask);
+
+ m = rxd->mbuf;
RTE_BUILD_BUG_ON(sizeof(m->rearm_data[0]) != sizeof(rxq->rearm_data));
m->rearm_data[0] = rxq->rearm_data;
/* Mask RSS hash offload flag if RSS is not enabled */
sfc_ef10_rx_ev_to_offloads(rx_ev, m,
(rxq->flags & SFC_EF10_RXQ_RSS_HASH) ?
- ~0ull : ~PKT_RX_RSS_HASH);
+ ~0ull : ~RTE_MBUF_F_RX_RSS_HASH);
/* data_off already moved past pseudo header */
pseudo_hdr = (uint8_t *)m->buf_addr + RTE_PKTMBUF_HEADROOM;
/*
* Always get RSS hash from pseudo header to avoid
* condition/branching. If it is valid or not depends on
- * PKT_RX_RSS_HASH in m->ol_flags.
+ * RTE_MBUF_F_RX_RSS_HASH in m->ol_flags.
*/
m->hash.rss = sfc_ef10_rx_pseudo_hdr_get_hash(pseudo_hdr);
if (ready == 1)
- pkt_len = EFX_QWORD_FIELD(rx_ev, ESF_DZ_RX_BYTES) -
+ seg_len = EFX_QWORD_FIELD(rx_ev, ESF_DZ_RX_BYTES) -
rxq->prefix_size;
else
- pkt_len = sfc_ef10_rx_pseudo_hdr_get_len(pseudo_hdr);
- SFC_ASSERT(pkt_len > 0);
- rte_pktmbuf_data_len(m) = pkt_len;
- rte_pktmbuf_pkt_len(m) = pkt_len;
+ seg_len = sfc_ef10_rx_pseudo_hdr_get_len(pseudo_hdr);
+ SFC_ASSERT(seg_len > 0);
+ rte_pktmbuf_data_len(m) = seg_len;
+ rte_pktmbuf_pkt_len(m) = seg_len;
SFC_ASSERT(m->next == NULL);
+ if (~rx_ev.eq_u64[0] & rte_cpu_to_le_64(1ull << ESF_DZ_RX_CONT_LBN)) {
+ *rx_pkts++ = m;
+ rxq->completed = pending;
+ } else {
+ /* Events with CONT bit are not merged */
+ SFC_ASSERT(ready == 1);
+ rxq->scatter_pkt = m;
+ rxq->completed = pending;
+ return rx_pkts;
+ }
+
/* Remember mbuf to copy offload flags and packet type from */
m0 = m;
- for (--ready; ready > 0; --ready) {
- rxd = &rxq->sw_ring[completed++ & ptr_mask];
+ while (pending != rxq->pending) {
+ rxd = &rxq->sw_ring[pending++ & ptr_mask];
- sfc_ef10_rx_prefetch_next(rxq, completed & ptr_mask);
+ sfc_ef10_rx_prefetch_next(rxq, pending & ptr_mask);
m = rxd->mbuf;
- if (ready > rxq->prepared)
+ if (rx_pkts != rx_pkts_end) {
*rx_pkts++ = m;
+ rxq->completed = pending;
+ }
RTE_BUILD_BUG_ON(sizeof(m->rearm_data[0]) !=
sizeof(rxq->rearm_data));
/*
* Always get RSS hash from pseudo header to avoid
* condition/branching. If it is valid or not depends on
- * PKT_RX_RSS_HASH in m->ol_flags.
+ * RTE_MBUF_F_RX_RSS_HASH in m->ol_flags.
*/
m->hash.rss = sfc_ef10_rx_pseudo_hdr_get_hash(pseudo_hdr);
- pkt_len = sfc_ef10_rx_pseudo_hdr_get_len(pseudo_hdr);
- SFC_ASSERT(pkt_len > 0);
- rte_pktmbuf_data_len(m) = pkt_len;
- rte_pktmbuf_pkt_len(m) = pkt_len;
+ seg_len = sfc_ef10_rx_pseudo_hdr_get_len(pseudo_hdr);
+ SFC_ASSERT(seg_len > 0);
+ rte_pktmbuf_data_len(m) = seg_len;
+ rte_pktmbuf_pkt_len(m) = seg_len;
SFC_ASSERT(m->next == NULL);
}
- return n_rx_pkts;
+ return rx_pkts;
}
static bool
sfc_ef10_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
{
struct sfc_ef10_rxq *rxq = sfc_ef10_rxq_by_dp_rxq(rx_queue);
+ struct rte_mbuf ** const rx_pkts_end = &rx_pkts[nb_pkts];
unsigned int evq_old_read_ptr;
- uint16_t n_rx_pkts;
efx_qword_t rx_ev;
+ rx_pkts = sfc_ef10_rx_pending(rxq, rx_pkts, nb_pkts);
+
if (unlikely(rxq->flags &
(SFC_EF10_RXQ_NOT_RUNNING | SFC_EF10_RXQ_EXCEPTION)))
- return 0;
-
- n_rx_pkts = sfc_ef10_rx_prepared(rxq, rx_pkts, nb_pkts);
+ goto done;
evq_old_read_ptr = rxq->evq_read_ptr;
- while (n_rx_pkts != nb_pkts && sfc_ef10_rx_get_event(rxq, &rx_ev)) {
+ while (rx_pkts != rx_pkts_end && sfc_ef10_rx_get_event(rxq, &rx_ev)) {
/*
* DROP_EVENT is an internal to the NIC, software should
* never see it and, therefore, may ignore it.
*/
- n_rx_pkts += sfc_ef10_rx_process_event(rxq, rx_ev,
- rx_pkts + n_rx_pkts,
- nb_pkts - n_rx_pkts);
+ rx_pkts = sfc_ef10_rx_process_event(rxq, rx_ev,
+ rx_pkts, rx_pkts_end);
}
sfc_ef10_ev_qclear(rxq->evq_hw_ring, rxq->ptr_mask, evq_old_read_ptr,
/* It is not a problem if we refill in the case of exception */
sfc_ef10_rx_qrefill(rxq);
- return n_rx_pkts;
+ if ((rxq->flags & SFC_EF10_RXQ_FLAG_INTR_EN) &&
+ rxq->evq_read_ptr_primed != rxq->evq_read_ptr)
+ sfc_ef10_rx_qprime(rxq);
+
+done:
+ return nb_pkts - (rx_pkts_end - rx_pkts);
}
-static const uint32_t *
+const uint32_t *
sfc_ef10_supported_ptypes_get(uint32_t tunnel_encaps)
{
static const uint32_t ef10_native_ptypes[] = {
static sfc_dp_rx_qdesc_npending_t sfc_ef10_rx_qdesc_npending;
static unsigned int
-sfc_ef10_rx_qdesc_npending(__rte_unused struct sfc_dp_rxq *dp_rxq)
+sfc_ef10_rx_qdesc_npending(struct sfc_dp_rxq *dp_rxq)
{
+ struct sfc_ef10_rxq *rxq = sfc_ef10_rxq_by_dp_rxq(dp_rxq);
+ efx_qword_t rx_ev;
+ const unsigned int evq_old_read_ptr = rxq->evq_read_ptr;
+ unsigned int pending = rxq->pending;
+ unsigned int ready;
+
+ if (unlikely(rxq->flags &
+ (SFC_EF10_RXQ_NOT_RUNNING | SFC_EF10_RXQ_EXCEPTION)))
+ goto done;
+
+ while (sfc_ef10_rx_get_event(rxq, &rx_ev)) {
+ ready = (EFX_QWORD_FIELD(rx_ev, ESF_DZ_RX_DSC_PTR_LBITS) -
+ pending) &
+ EFX_MASK32(ESF_DZ_RX_DSC_PTR_LBITS);
+ pending += ready;
+ }
+
/*
- * Correct implementation requires EvQ polling and events
- * processing (keeping all ready mbufs in prepared).
+ * The function does not process events, so return event queue read
+ * pointer to the original position to allow the events that were
+ * read to be processed later
*/
- return -ENOTSUP;
+ rxq->evq_read_ptr = evq_old_read_ptr;
+
+done:
+ return pending - rxq->completed;
}
static sfc_dp_rx_qdesc_status_t sfc_ef10_rx_qdesc_status;
static int
-sfc_ef10_rx_qdesc_status(__rte_unused struct sfc_dp_rxq *dp_rxq,
- __rte_unused uint16_t offset)
+sfc_ef10_rx_qdesc_status(struct sfc_dp_rxq *dp_rxq, uint16_t offset)
{
- return -ENOTSUP;
+ struct sfc_ef10_rxq *rxq = sfc_ef10_rxq_by_dp_rxq(dp_rxq);
+ unsigned int npending = sfc_ef10_rx_qdesc_npending(dp_rxq);
+
+ if (unlikely(offset > rxq->ptr_mask))
+ return -EINVAL;
+
+ if (offset < npending)
+ return RTE_ETH_RX_DESC_DONE;
+
+ if (offset < (rxq->added - rxq->completed))
+ return RTE_ETH_RX_DESC_AVAIL;
+
+ return RTE_ETH_RX_DESC_UNAVAIL;
}
static sfc_dp_rx_qsize_up_rings_t sfc_ef10_rx_qsize_up_rings;
static int
sfc_ef10_rx_qsize_up_rings(uint16_t nb_rx_desc,
+ struct sfc_dp_rx_hw_limits *limits,
+ __rte_unused struct rte_mempool *mb_pool,
unsigned int *rxq_entries,
unsigned int *evq_entries,
unsigned int *rxq_max_fill_level)
* rte_ethdev API guarantees that the number meets min, max and
* alignment requirements.
*/
- if (nb_rx_desc <= EFX_RXQ_MINNDESCS)
- *rxq_entries = EFX_RXQ_MINNDESCS;
+ if (nb_rx_desc <= limits->rxq_min_entries)
+ *rxq_entries = limits->rxq_min_entries;
else
*rxq_entries = rte_align32pow2(nb_rx_desc);
if (info->rxq_entries != info->evq_entries)
goto fail_rxq_args;
+ rc = ENOTSUP;
+ if (info->nic_dma_info->nb_regions > 0)
+ goto fail_nic_dma;
+
rc = ENOMEM;
rxq = rte_zmalloc_socket("sfc-ef10-rxq", sizeof(*rxq),
RTE_CACHE_LINE_SIZE, socket_id);
rxq->doorbell = (volatile uint8_t *)info->mem_bar +
ER_DZ_RX_DESC_UPD_REG_OFST +
(info->hw_index << info->vi_window_shift);
+ rxq->evq_prime = (volatile uint8_t *)info->mem_bar +
+ ER_DZ_EVQ_RPTR_REG_OFST +
+ (info->evq_hw_index << info->vi_window_shift);
+
+ sfc_ef10_rx_info(&rxq->dp.dpq, "RxQ doorbell is %p", rxq->doorbell);
*dp_rxqp = &rxq->dp;
return 0;
rte_free(rxq);
fail_rxq_alloc:
+fail_nic_dma:
fail_rxq_args:
return rc;
}
static sfc_dp_rx_qstart_t sfc_ef10_rx_qstart;
static int
-sfc_ef10_rx_qstart(struct sfc_dp_rxq *dp_rxq, unsigned int evq_read_ptr)
+sfc_ef10_rx_qstart(struct sfc_dp_rxq *dp_rxq, unsigned int evq_read_ptr,
+ const efx_rx_prefix_layout_t *pinfo)
{
struct sfc_ef10_rxq *rxq = sfc_ef10_rxq_by_dp_rxq(dp_rxq);
- rxq->prepared = 0;
- rxq->completed = rxq->added = 0;
+ SFC_ASSERT(rxq->completed == 0);
+ SFC_ASSERT(rxq->pending == 0);
+ SFC_ASSERT(rxq->added == 0);
+
+ if (pinfo->erpl_length != rxq->prefix_size ||
+ efx_rx_prefix_layout_check(pinfo, &sfc_ef10_rx_prefix_layout) != 0)
+ return ENOTSUP;
sfc_ef10_rx_qrefill(rxq);
rxq->flags |= SFC_EF10_RXQ_STARTED;
rxq->flags &= ~(SFC_EF10_RXQ_NOT_RUNNING | SFC_EF10_RXQ_EXCEPTION);
+ if (rxq->flags & SFC_EF10_RXQ_FLAG_INTR_EN)
+ sfc_ef10_rx_qprime(rxq);
+
return 0;
}
unsigned int i;
struct sfc_ef10_rx_sw_desc *rxd;
+ rte_pktmbuf_free(rxq->scatter_pkt);
+ rxq->scatter_pkt = NULL;
+
for (i = rxq->completed; i != rxq->added; ++i) {
rxd = &rxq->sw_ring[i & rxq->ptr_mask];
- rte_mempool_put(rxq->refill_mb_pool, rxd->mbuf);
+ rte_mbuf_raw_free(rxd->mbuf);
rxd->mbuf = NULL;
}
+ rxq->completed = rxq->pending = rxq->added = 0;
+
rxq->flags &= ~SFC_EF10_RXQ_STARTED;
}
+static sfc_dp_rx_intr_enable_t sfc_ef10_rx_intr_enable;
+static int
+sfc_ef10_rx_intr_enable(struct sfc_dp_rxq *dp_rxq)
+{
+ struct sfc_ef10_rxq *rxq = sfc_ef10_rxq_by_dp_rxq(dp_rxq);
+
+ rxq->flags |= SFC_EF10_RXQ_FLAG_INTR_EN;
+ if (rxq->flags & SFC_EF10_RXQ_STARTED)
+ sfc_ef10_rx_qprime(rxq);
+ return 0;
+}
+
+static sfc_dp_rx_intr_disable_t sfc_ef10_rx_intr_disable;
+static int
+sfc_ef10_rx_intr_disable(struct sfc_dp_rxq *dp_rxq)
+{
+ struct sfc_ef10_rxq *rxq = sfc_ef10_rxq_by_dp_rxq(dp_rxq);
+
+ /* Cannot disarm, just disable rearm */
+ rxq->flags &= ~SFC_EF10_RXQ_FLAG_INTR_EN;
+ return 0;
+}
+
struct sfc_dp_rx sfc_ef10_rx = {
.dp = {
.name = SFC_KVARG_DATAPATH_EF10,
.hw_fw_caps = SFC_DP_HW_FW_CAP_EF10,
},
.features = SFC_DP_RX_FEAT_MULTI_PROCESS |
- SFC_DP_RX_FEAT_TUNNELS,
+ SFC_DP_RX_FEAT_INTR,
+ .dev_offload_capa = RTE_ETH_RX_OFFLOAD_CHECKSUM |
+ RTE_ETH_RX_OFFLOAD_OUTER_IPV4_CKSUM |
+ RTE_ETH_RX_OFFLOAD_RSS_HASH,
+ .queue_offload_capa = RTE_ETH_RX_OFFLOAD_SCATTER,
.get_dev_info = sfc_ef10_rx_get_dev_info,
.qsize_up_rings = sfc_ef10_rx_qsize_up_rings,
.qcreate = sfc_ef10_rx_qcreate,
.supported_ptypes_get = sfc_ef10_supported_ptypes_get,
.qdesc_npending = sfc_ef10_rx_qdesc_npending,
.qdesc_status = sfc_ef10_rx_qdesc_status,
+ .intr_enable = sfc_ef10_rx_intr_enable,
+ .intr_disable = sfc_ef10_rx_intr_disable,
.pkt_burst = sfc_ef10_recv_pkts,
};