Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 501 insertions, 0 deletions

diff --git a/src/seastar/dpdk/drivers/net/bnxt/bnxt_ring.c b/src/seastar/dpdk/drivers/net/bnxt/bnxt_ring.c
new file mode 100644
index 000000000..fcbd6bc6e
--- /dev/null
+++ b/src/seastar/dpdk/drivers/net/bnxt/bnxt_ring.c
@@ -0,0 +1,501 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2014-2018 Broadcom
+ * All rights reserved.
+ */
+
+#include <rte_bitmap.h>
+#include <rte_memzone.h>
+#include <unistd.h>
+
+#include "bnxt.h"
+#include "bnxt_cpr.h"
+#include "bnxt_hwrm.h"
+#include "bnxt_ring.h"
+#include "bnxt_rxq.h"
+#include "bnxt_rxr.h"
+#include "bnxt_txq.h"
+#include "bnxt_txr.h"
+
+#include "hsi_struct_def_dpdk.h"
+
+/*
+ * Generic ring handling
+ */
+
+void bnxt_free_ring(struct bnxt_ring *ring)
+{
+	if (!ring)
+		return;
+
+	if (ring->vmem_size && *ring->vmem) {
+		memset((char *)*ring->vmem, 0, ring->vmem_size);
+		*ring->vmem = NULL;
+	}
+	ring->mem_zone = NULL;
+}
+
+/*
+ * Ring groups
+ */
+
+int bnxt_init_ring_grps(struct bnxt *bp)
+{
+	unsigned int i;
+
+	for (i = 0; i < bp->max_ring_grps; i++)
+		memset(&bp->grp_info[i], (uint8_t)HWRM_NA_SIGNATURE,
+		       sizeof(struct bnxt_ring_grp_info));
+
+	return 0;
+}
+
+/*
+ * Allocates a completion ring with vmem and stats optionally also allocating
+ * a TX and/or RX ring.  Passing NULL as tx_ring_info and/or rx_ring_info
+ * to not allocate them.
+ *
+ * Order in the allocation is:
+ * stats - Always non-zero length
+ * cp vmem - Always zero-length, supported for the bnxt_ring abstraction
+ * tx vmem - Only non-zero length if tx_ring_info is not NULL
+ * rx vmem - Only non-zero length if rx_ring_info is not NULL
+ * cp bd ring - Always non-zero length
+ * tx bd ring - Only non-zero length if tx_ring_info is not NULL
+ * rx bd ring - Only non-zero length if rx_ring_info is not NULL
+ */
+int bnxt_alloc_rings(struct bnxt *bp, uint16_t qidx,
+			    struct bnxt_tx_queue *txq,
+			    struct bnxt_rx_queue *rxq,
+			    struct bnxt_cp_ring_info *cp_ring_info,
+			    const char *suffix)
+{
+	struct bnxt_ring *cp_ring = cp_ring_info->cp_ring_struct;
+	struct bnxt_rx_ring_info *rx_ring_info = rxq ? rxq->rx_ring : NULL;
+	struct bnxt_tx_ring_info *tx_ring_info = txq ? txq->tx_ring : NULL;
+	struct bnxt_ring *tx_ring;
+	struct bnxt_ring *rx_ring;
+	struct rte_pci_device *pdev = bp->pdev;
+	uint64_t rx_offloads = bp->eth_dev->data->dev_conf.rxmode.offloads;
+	const struct rte_memzone *mz = NULL;
+	char mz_name[RTE_MEMZONE_NAMESIZE];
+	rte_iova_t mz_phys_addr;
+	int sz;
+
+	int stats_len = (tx_ring_info || rx_ring_info) ?
+	    RTE_CACHE_LINE_ROUNDUP(sizeof(struct hwrm_stat_ctx_query_output) -
+				   sizeof (struct hwrm_resp_hdr)) : 0;
+
+	int cp_vmem_start = stats_len;
+	int cp_vmem_len = RTE_CACHE_LINE_ROUNDUP(cp_ring->vmem_size);
+
+	int tx_vmem_start = cp_vmem_start + cp_vmem_len;
+	int tx_vmem_len =
+	    tx_ring_info ? RTE_CACHE_LINE_ROUNDUP(tx_ring_info->
+						tx_ring_struct->vmem_size) : 0;
+
+	int rx_vmem_start = tx_vmem_start + tx_vmem_len;
+	int rx_vmem_len = rx_ring_info ?
+		RTE_CACHE_LINE_ROUNDUP(rx_ring_info->
+						rx_ring_struct->vmem_size) : 0;
+	int ag_vmem_start = 0;
+	int ag_vmem_len = 0;
+	int cp_ring_start =  0;
+
+	ag_vmem_start = rx_vmem_start + rx_vmem_len;
+	ag_vmem_len = rx_ring_info ? RTE_CACHE_LINE_ROUNDUP(
+				rx_ring_info->ag_ring_struct->vmem_size) : 0;
+	cp_ring_start = ag_vmem_start + ag_vmem_len;
+
+	int cp_ring_len = RTE_CACHE_LINE_ROUNDUP(cp_ring->ring_size *
+						 sizeof(struct cmpl_base));
+
+	int tx_ring_start = cp_ring_start + cp_ring_len;
+	int tx_ring_len = tx_ring_info ?
+	    RTE_CACHE_LINE_ROUNDUP(tx_ring_info->tx_ring_struct->ring_size *
+				   sizeof(struct tx_bd_long)) : 0;
+
+	int rx_ring_start = tx_ring_start + tx_ring_len;
+	int rx_ring_len =  rx_ring_info ?
+		RTE_CACHE_LINE_ROUNDUP(rx_ring_info->rx_ring_struct->ring_size *
+		sizeof(struct rx_prod_pkt_bd)) : 0;
+
+	int ag_ring_start = rx_ring_start + rx_ring_len;
+	int ag_ring_len = rx_ring_len * AGG_RING_SIZE_FACTOR;
+
+	int ag_bitmap_start = ag_ring_start + ag_ring_len;
+	int ag_bitmap_len =  rx_ring_info ?
+		RTE_CACHE_LINE_ROUNDUP(rte_bitmap_get_memory_footprint(
+			rx_ring_info->rx_ring_struct->ring_size *
+			AGG_RING_SIZE_FACTOR)) : 0;
+
+	int tpa_info_start = ag_bitmap_start + ag_bitmap_len;
+	int tpa_info_len = rx_ring_info ?
+		RTE_CACHE_LINE_ROUNDUP(BNXT_TPA_MAX *
+				       sizeof(struct bnxt_tpa_info)) : 0;
+
+	int total_alloc_len = tpa_info_start;
+	if (rx_offloads & DEV_RX_OFFLOAD_TCP_LRO)
+		total_alloc_len += tpa_info_len;
+
+	snprintf(mz_name, RTE_MEMZONE_NAMESIZE,
+		 "bnxt_%04x:%02x:%02x:%02x-%04x_%s", pdev->addr.domain,
+		 pdev->addr.bus, pdev->addr.devid, pdev->addr.function, qidx,
+		 suffix);
+	mz_name[RTE_MEMZONE_NAMESIZE - 1] = 0;
+	mz = rte_memzone_lookup(mz_name);
+	if (!mz) {
+		mz = rte_memzone_reserve_aligned(mz_name, total_alloc_len,
+				SOCKET_ID_ANY,
+				RTE_MEMZONE_2MB |
+				RTE_MEMZONE_SIZE_HINT_ONLY |
+				RTE_MEMZONE_IOVA_CONTIG,
+				getpagesize());
+		if (mz == NULL)
+			return -ENOMEM;
+	}
+	memset(mz->addr, 0, mz->len);
+	mz_phys_addr = mz->iova;
+	if ((unsigned long)mz->addr == mz_phys_addr) {
+		PMD_DRV_LOG(WARNING,
+			"Memzone physical address same as virtual.\n");
+		PMD_DRV_LOG(WARNING,
+			"Using rte_mem_virt2iova()\n");
+		for (sz = 0; sz < total_alloc_len; sz += getpagesize())
+			rte_mem_lock_page(((char *)mz->addr) + sz);
+		mz_phys_addr = rte_mem_virt2iova(mz->addr);
+		if (mz_phys_addr == 0) {
+			PMD_DRV_LOG(ERR,
+			"unable to map ring address to physical memory\n");
+			return -ENOMEM;
+		}
+	}
+
+	if (tx_ring_info) {
+		txq->mz = mz;
+		tx_ring = tx_ring_info->tx_ring_struct;
+
+		tx_ring->bd = ((char *)mz->addr + tx_ring_start);
+		tx_ring_info->tx_desc_ring = (struct tx_bd_long *)tx_ring->bd;
+		tx_ring->bd_dma = mz_phys_addr + tx_ring_start;
+		tx_ring_info->tx_desc_mapping = tx_ring->bd_dma;
+		tx_ring->mem_zone = (const void *)mz;
+
+		if (!tx_ring->bd)
+			return -ENOMEM;
+		if (tx_ring->vmem_size) {
+			tx_ring->vmem =
+			    (void **)((char *)mz->addr + tx_vmem_start);
+			tx_ring_info->tx_buf_ring =
+			    (struct bnxt_sw_tx_bd *)tx_ring->vmem;
+		}
+	}
+
+	if (rx_ring_info) {
+		rxq->mz = mz;
+		rx_ring = rx_ring_info->rx_ring_struct;
+
+		rx_ring->bd = ((char *)mz->addr + rx_ring_start);
+		rx_ring_info->rx_desc_ring =
+		    (struct rx_prod_pkt_bd *)rx_ring->bd;
+		rx_ring->bd_dma = mz_phys_addr + rx_ring_start;
+		rx_ring_info->rx_desc_mapping = rx_ring->bd_dma;
+		rx_ring->mem_zone = (const void *)mz;
+
+		if (!rx_ring->bd)
+			return -ENOMEM;
+		if (rx_ring->vmem_size) {
+			rx_ring->vmem =
+			    (void **)((char *)mz->addr + rx_vmem_start);
+			rx_ring_info->rx_buf_ring =
+			    (struct bnxt_sw_rx_bd *)rx_ring->vmem;
+		}
+
+		rx_ring = rx_ring_info->ag_ring_struct;
+
+		rx_ring->bd = ((char *)mz->addr + ag_ring_start);
+		rx_ring_info->ag_desc_ring =
+		    (struct rx_prod_pkt_bd *)rx_ring->bd;
+		rx_ring->bd_dma = mz->iova + ag_ring_start;
+		rx_ring_info->ag_desc_mapping = rx_ring->bd_dma;
+		rx_ring->mem_zone = (const void *)mz;
+
+		if (!rx_ring->bd)
+			return -ENOMEM;
+		if (rx_ring->vmem_size) {
+			rx_ring->vmem =
+			    (void **)((char *)mz->addr + ag_vmem_start);
+			rx_ring_info->ag_buf_ring =
+			    (struct bnxt_sw_rx_bd *)rx_ring->vmem;
+		}
+
+		rx_ring_info->ag_bitmap =
+		    rte_bitmap_init(rx_ring_info->rx_ring_struct->ring_size *
+				    AGG_RING_SIZE_FACTOR, (uint8_t *)mz->addr +
+				    ag_bitmap_start, ag_bitmap_len);
+
+		/* TPA info */
+		if (rx_offloads & DEV_RX_OFFLOAD_TCP_LRO)
+			rx_ring_info->tpa_info =
+				((struct bnxt_tpa_info *)((char *)mz->addr +
+							  tpa_info_start));
+	}
+
+	cp_ring->bd = ((char *)mz->addr + cp_ring_start);
+	cp_ring->bd_dma = mz_phys_addr + cp_ring_start;
+	cp_ring_info->cp_desc_ring = cp_ring->bd;
+	cp_ring_info->cp_desc_mapping = cp_ring->bd_dma;
+	cp_ring->mem_zone = (const void *)mz;
+
+	if (!cp_ring->bd)
+		return -ENOMEM;
+	if (cp_ring->vmem_size)
+		*cp_ring->vmem = ((char *)mz->addr + stats_len);
+	if (stats_len) {
+		cp_ring_info->hw_stats = mz->addr;
+		cp_ring_info->hw_stats_map = mz_phys_addr;
+	}
+	cp_ring_info->hw_stats_ctx_id = HWRM_NA_SIGNATURE;
+	return 0;
+}
+
+static void bnxt_init_dflt_coal(struct bnxt_coal *coal)
+{
+	/* Tick values in micro seconds.
+	 * 1 coal_buf x bufs_per_record = 1 completion record.
+	 */
+	coal->num_cmpl_aggr_int = BNXT_NUM_CMPL_AGGR_INT;
+	/* This is a 6-bit value and must not be 0, or we'll get non stop IRQ */
+	coal->num_cmpl_dma_aggr = BNXT_NUM_CMPL_DMA_AGGR;
+	/* This is a 6-bit value and must not be 0, or we'll get non stop IRQ */
+	coal->num_cmpl_dma_aggr_during_int = BNXT_NUM_CMPL_DMA_AGGR_DURING_INT;
+	coal->int_lat_tmr_max = BNXT_INT_LAT_TMR_MAX;
+	/* min timer set to 1/2 of interrupt timer */
+	coal->int_lat_tmr_min = BNXT_INT_LAT_TMR_MIN;
+	/* buf timer set to 1/4 of interrupt timer */
+	coal->cmpl_aggr_dma_tmr = BNXT_CMPL_AGGR_DMA_TMR;
+	coal->cmpl_aggr_dma_tmr_during_int = BNXT_CMPL_AGGR_DMA_TMR_DURING_INT;
+}
+
+int bnxt_alloc_hwrm_rx_ring(struct bnxt *bp, int queue_index)
+{
+	struct rte_pci_device *pci_dev = bp->pdev;
+	struct bnxt_rx_queue *rxq = bp->rx_queues[queue_index];
+	struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
+	struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
+	struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
+	struct bnxt_ring *ring = rxr->rx_ring_struct;
+	unsigned int map_idx = queue_index + bp->rx_cp_nr_rings;
+	int rc = 0;
+
+	bp->grp_info[queue_index].fw_stats_ctx = cpr->hw_stats_ctx_id;
+
+	/* Rx cmpl */
+	rc = bnxt_hwrm_ring_alloc(bp, cp_ring,
+				  HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL,
+				  queue_index, HWRM_NA_SIGNATURE,
+				  HWRM_NA_SIGNATURE);
+	if (rc)
+		goto err_out;
+
+	cpr->cp_doorbell = (char *)pci_dev->mem_resource[2].addr +
+		queue_index * BNXT_DB_SIZE;
+	bp->grp_info[queue_index].cp_fw_ring_id = cp_ring->fw_ring_id;
+	B_CP_DIS_DB(cpr, cpr->cp_raw_cons);
+
+	if (!queue_index) {
+		/*
+		 * In order to save completion resources, use the first
+		 * completion ring from PF or VF as the default completion ring
+		 * for async event and HWRM forward response handling.
+		 */
+		bp->def_cp_ring = cpr;
+		rc = bnxt_hwrm_set_async_event_cr(bp);
+		if (rc)
+			goto err_out;
+	}
+	/* Rx ring */
+	rc = bnxt_hwrm_ring_alloc(bp, ring, HWRM_RING_ALLOC_INPUT_RING_TYPE_RX,
+				  queue_index, cpr->hw_stats_ctx_id,
+				  cp_ring->fw_ring_id);
+	if (rc)
+		goto err_out;
+
+	rxr->rx_prod = 0;
+	rxr->rx_doorbell = (char *)pci_dev->mem_resource[2].addr +
+		queue_index * BNXT_DB_SIZE;
+	bp->grp_info[queue_index].rx_fw_ring_id = ring->fw_ring_id;
+	B_RX_DB(rxr->rx_doorbell, rxr->rx_prod);
+
+	ring = rxr->ag_ring_struct;
+	/* Agg ring */
+	if (!ring)
+		PMD_DRV_LOG(ERR, "Alloc AGG Ring is NULL!\n");
+
+	rc = bnxt_hwrm_ring_alloc(bp, ring, HWRM_RING_ALLOC_INPUT_RING_TYPE_RX,
+				  map_idx, HWRM_NA_SIGNATURE,
+				  cp_ring->fw_ring_id);
+	if (rc)
+		goto err_out;
+
+	PMD_DRV_LOG(DEBUG, "Alloc AGG Done!\n");
+	rxr->ag_prod = 0;
+	rxr->ag_doorbell = (char *)pci_dev->mem_resource[2].addr +
+		map_idx * BNXT_DB_SIZE;
+	bp->grp_info[queue_index].ag_fw_ring_id = ring->fw_ring_id;
+	B_RX_DB(rxr->ag_doorbell, rxr->ag_prod);
+
+	rxq->rx_buf_use_size = BNXT_MAX_MTU + ETHER_HDR_LEN +
+		ETHER_CRC_LEN + (2 * VLAN_TAG_SIZE);
+
+	if (bp->eth_dev->data->rx_queue_state[queue_index] ==
+	    RTE_ETH_QUEUE_STATE_STARTED) {
+		if (bnxt_init_one_rx_ring(rxq)) {
+			RTE_LOG(ERR, PMD,
+				"bnxt_init_one_rx_ring failed!\n");
+			bnxt_rx_queue_release_op(rxq);
+			rc = -ENOMEM;
+			goto err_out;
+		}
+		B_RX_DB(rxr->rx_doorbell, rxr->rx_prod);
+		B_RX_DB(rxr->ag_doorbell, rxr->ag_prod);
+	}
+	rxq->index = queue_index;
+	PMD_DRV_LOG(INFO,
+		    "queue %d, rx_deferred_start %d, state %d!\n",
+		    queue_index, rxq->rx_deferred_start,
+		    bp->eth_dev->data->rx_queue_state[queue_index]);
+
+err_out:
+	return rc;
+}
+/* ring_grp usage:
+ * [0] = default completion ring
+ * [1 -> +rx_cp_nr_rings] = rx_cp, rx rings
+ * [1+rx_cp_nr_rings + 1 -> +tx_cp_nr_rings] = tx_cp, tx rings
+ */
+int bnxt_alloc_hwrm_rings(struct bnxt *bp)
+{
+	struct bnxt_coal coal;
+	unsigned int i;
+	int rc = 0;
+
+	bnxt_init_dflt_coal(&coal);
+
+	for (i = 0; i < bp->rx_cp_nr_rings; i++) {
+		struct bnxt_rx_queue *rxq = bp->rx_queues[i];
+		struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
+		struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
+		struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
+		struct bnxt_ring *ring = rxr->rx_ring_struct;
+		unsigned int map_idx = i + bp->rx_cp_nr_rings;
+
+		bp->grp_info[i].fw_stats_ctx = cpr->hw_stats_ctx_id;
+
+		/* Rx cmpl */
+		rc = bnxt_hwrm_ring_alloc
+			(bp,
+			 cp_ring,
+			 HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL,
+			 i,
+			 HWRM_NA_SIGNATURE,
+			 HWRM_NA_SIGNATURE);
+		if (rc)
+			goto err_out;
+		cpr->cp_doorbell = (char *)bp->doorbell_base + i * 0x80;
+		bp->grp_info[i].cp_fw_ring_id = cp_ring->fw_ring_id;
+		B_CP_DIS_DB(cpr, cpr->cp_raw_cons);
+		bnxt_hwrm_set_ring_coal(bp, &coal, cp_ring->fw_ring_id);
+
+		if (!i) {
+			/*
+			 * In order to save completion resource, use the first
+			 * completion ring from PF or VF as the default
+			 * completion ring for async event & HWRM
+			 * forward response handling.
+			 */
+			bp->def_cp_ring = cpr;
+			rc = bnxt_hwrm_set_async_event_cr(bp);
+			if (rc)
+				goto err_out;
+		}
+
+		/* Rx ring */
+		rc = bnxt_hwrm_ring_alloc(bp,
+					  ring,
+					  HWRM_RING_ALLOC_INPUT_RING_TYPE_RX,
+					  i,
+					  cpr->hw_stats_ctx_id,
+					  cp_ring->fw_ring_id);
+		if (rc)
+			goto err_out;
+		rxr->rx_prod = 0;
+		rxr->rx_doorbell = (char *)bp->doorbell_base + i * 0x80;
+		bp->grp_info[i].rx_fw_ring_id = ring->fw_ring_id;
+		B_RX_DB(rxr->rx_doorbell, rxr->rx_prod);
+
+		ring = rxr->ag_ring_struct;
+		/* Agg ring */
+		if (ring == NULL) {
+			PMD_DRV_LOG(ERR, "Alloc AGG Ring is NULL!\n");
+			goto err_out;
+		}
+
+		rc = bnxt_hwrm_ring_alloc(bp, ring,
+				HWRM_RING_ALLOC_INPUT_RING_TYPE_RX,
+				map_idx, HWRM_NA_SIGNATURE,
+				cp_ring->fw_ring_id);
+		if (rc)
+			goto err_out;
+		PMD_DRV_LOG(DEBUG, "Alloc AGG Done!\n");
+		rxr->ag_prod = 0;
+		rxr->ag_doorbell = (char *)bp->doorbell_base + map_idx * 0x80;
+		bp->grp_info[i].ag_fw_ring_id = ring->fw_ring_id;
+		B_RX_DB(rxr->ag_doorbell, rxr->ag_prod);
+
+		rxq->rx_buf_use_size = BNXT_MAX_MTU + ETHER_HDR_LEN +
+					ETHER_CRC_LEN + (2 * VLAN_TAG_SIZE);
+		if (bnxt_init_one_rx_ring(rxq)) {
+			PMD_DRV_LOG(ERR, "bnxt_init_one_rx_ring failed!\n");
+			bnxt_rx_queue_release_op(rxq);
+			return -ENOMEM;
+		}
+		B_RX_DB(rxr->rx_doorbell, rxr->rx_prod);
+		B_RX_DB(rxr->ag_doorbell, rxr->ag_prod);
+		rxq->index = i;
+	}
+
+	for (i = 0; i < bp->tx_cp_nr_rings; i++) {
+		struct bnxt_tx_queue *txq = bp->tx_queues[i];
+		struct bnxt_cp_ring_info *cpr = txq->cp_ring;
+		struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
+		struct bnxt_tx_ring_info *txr = txq->tx_ring;
+		struct bnxt_ring *ring = txr->tx_ring_struct;
+		unsigned int idx = i + bp->rx_cp_nr_rings;
+
+		/* Tx cmpl */
+		rc = bnxt_hwrm_ring_alloc(bp, cp_ring,
+					HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL,
+					idx, HWRM_NA_SIGNATURE,
+					HWRM_NA_SIGNATURE);
+		if (rc)
+			goto err_out;
+
+		cpr->cp_doorbell = (char *)bp->doorbell_base + idx * 0x80;
+		B_CP_DIS_DB(cpr, cpr->cp_raw_cons);
+
+		/* Tx ring */
+		rc = bnxt_hwrm_ring_alloc(bp, ring,
+					HWRM_RING_ALLOC_INPUT_RING_TYPE_TX,
+					idx, cpr->hw_stats_ctx_id,
+					cp_ring->fw_ring_id);
+		if (rc)
+			goto err_out;
+
+		txr->tx_doorbell = (char *)bp->doorbell_base + idx * 0x80;
+		txq->index = idx;
+		bnxt_hwrm_set_ring_coal(bp, &coal, cp_ring->fw_ring_id);
+	}
+
+err_out:
+	return rc;
+}