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34 #include <rte_memzone.h>
38 #include "bnxt_hwrm.h"
39 #include "bnxt_ring.h"
45 #include "hsi_struct_def_dpdk.h"
48 * Generic ring handling
51 void bnxt_free_ring(struct bnxt_ring *ring)
53 if (ring->vmem_size && *ring->vmem) {
54 memset((char *)*ring->vmem, 0, ring->vmem_size);
57 rte_memzone_free((const struct rte_memzone *)ring->mem_zone);
64 int bnxt_init_ring_grps(struct bnxt *bp)
68 //One slot is still consumed by Default ring.
69 if (bp->max_ring_grps < 1 + bp->rx_cp_nr_rings)
72 for (i = 0; i < bp->max_ring_grps; i++)
73 memset(&bp->grp_info[i], (uint8_t)HWRM_NA_SIGNATURE,
74 sizeof(struct bnxt_ring_grp_info));
80 * Allocates a completion ring with vmem and stats optionally also allocating
81 * a TX and/or RX ring. Passing NULL as tx_ring_info and/or rx_ring_info
82 * to not allocate them.
84 * Order in the allocation is:
85 * stats - Always non-zero length
86 * cp vmem - Always zero-length, supported for the bnxt_ring abstraction
87 * tx vmem - Only non-zero length if tx_ring_info is not NULL
88 * rx vmem - Only non-zero length if rx_ring_info is not NULL
89 * cp bd ring - Always non-zero length
90 * tx bd ring - Only non-zero length if tx_ring_info is not NULL
91 * rx bd ring - Only non-zero length if rx_ring_info is not NULL
93 int bnxt_alloc_rings(struct bnxt *bp, uint16_t qidx,
94 struct bnxt_tx_ring_info *tx_ring_info,
95 struct bnxt_rx_ring_info *rx_ring_info,
96 struct bnxt_cp_ring_info *cp_ring_info,
99 struct bnxt_ring *cp_ring = cp_ring_info->cp_ring_struct;
100 struct bnxt_ring *tx_ring;
101 struct bnxt_ring *rx_ring;
102 struct rte_pci_device *pdev = bp->pdev;
103 const struct rte_memzone *mz = NULL;
104 char mz_name[RTE_MEMZONE_NAMESIZE];
106 int stats_len = (tx_ring_info || rx_ring_info) ?
107 RTE_CACHE_LINE_ROUNDUP(sizeof(struct ctx_hw_stats64)) : 0;
109 int cp_vmem_start = stats_len;
110 int cp_vmem_len = RTE_CACHE_LINE_ROUNDUP(cp_ring->vmem_size);
112 int tx_vmem_start = cp_vmem_start + cp_vmem_len;
114 tx_ring_info ? RTE_CACHE_LINE_ROUNDUP(tx_ring_info->
115 tx_ring_struct->vmem_size) : 0;
117 int rx_vmem_start = tx_vmem_start + tx_vmem_len;
118 int rx_vmem_len = rx_ring_info ?
119 RTE_CACHE_LINE_ROUNDUP(rx_ring_info->
120 rx_ring_struct->vmem_size) : 0;
122 int cp_ring_start = rx_vmem_start + rx_vmem_len;
123 int cp_ring_len = RTE_CACHE_LINE_ROUNDUP(cp_ring->ring_size *
124 sizeof(struct cmpl_base));
126 int tx_ring_start = cp_ring_start + cp_ring_len;
127 int tx_ring_len = tx_ring_info ?
128 RTE_CACHE_LINE_ROUNDUP(tx_ring_info->tx_ring_struct->ring_size *
129 sizeof(struct tx_bd_long)) : 0;
131 int rx_ring_start = tx_ring_start + tx_ring_len;
132 int rx_ring_len = rx_ring_info ?
133 RTE_CACHE_LINE_ROUNDUP(rx_ring_info->rx_ring_struct->ring_size *
134 sizeof(struct rx_prod_pkt_bd)) : 0;
136 int total_alloc_len = rx_ring_start + rx_ring_len;
138 snprintf(mz_name, RTE_MEMZONE_NAMESIZE,
139 "bnxt_%04x:%02x:%02x:%02x-%04x_%s", pdev->addr.domain,
140 pdev->addr.bus, pdev->addr.devid, pdev->addr.function, qidx,
142 mz_name[RTE_MEMZONE_NAMESIZE - 1] = 0;
143 mz = rte_memzone_lookup(mz_name);
145 mz = rte_memzone_reserve(mz_name, total_alloc_len,
148 RTE_MEMZONE_SIZE_HINT_ONLY);
152 memset(mz->addr, 0, mz->len);
155 tx_ring = tx_ring_info->tx_ring_struct;
157 tx_ring->bd = ((char *)mz->addr + tx_ring_start);
158 tx_ring_info->tx_desc_ring = (struct tx_bd_long *)tx_ring->bd;
159 tx_ring->bd_dma = mz->phys_addr + tx_ring_start;
160 tx_ring_info->tx_desc_mapping = tx_ring->bd_dma;
161 tx_ring->mem_zone = (const void *)mz;
165 if (tx_ring->vmem_size) {
167 (void **)((char *)mz->addr + tx_vmem_start);
168 tx_ring_info->tx_buf_ring =
169 (struct bnxt_sw_tx_bd *)tx_ring->vmem;
174 rx_ring = rx_ring_info->rx_ring_struct;
176 rx_ring->bd = ((char *)mz->addr + rx_ring_start);
177 rx_ring_info->rx_desc_ring =
178 (struct rx_prod_pkt_bd *)rx_ring->bd;
179 rx_ring->bd_dma = mz->phys_addr + rx_ring_start;
180 rx_ring_info->rx_desc_mapping = rx_ring->bd_dma;
181 rx_ring->mem_zone = (const void *)mz;
185 if (rx_ring->vmem_size) {
187 (void **)((char *)mz->addr + rx_vmem_start);
188 rx_ring_info->rx_buf_ring =
189 (struct bnxt_sw_rx_bd *)rx_ring->vmem;
193 cp_ring->bd = ((char *)mz->addr + cp_ring_start);
194 cp_ring->bd_dma = mz->phys_addr + cp_ring_start;
195 cp_ring_info->cp_desc_ring = cp_ring->bd;
196 cp_ring_info->cp_desc_mapping = cp_ring->bd_dma;
197 cp_ring->mem_zone = (const void *)mz;
201 if (cp_ring->vmem_size)
202 *cp_ring->vmem = ((char *)mz->addr + stats_len);
204 cp_ring_info->hw_stats = mz->addr;
205 cp_ring_info->hw_stats_map = mz->phys_addr;
207 cp_ring_info->hw_stats_ctx_id = HWRM_NA_SIGNATURE;
212 * [0] = default completion ring
213 * [1 -> +rx_cp_nr_rings] = rx_cp, rx rings
214 * [1+rx_cp_nr_rings + 1 -> +tx_cp_nr_rings] = tx_cp, tx rings
216 int bnxt_alloc_hwrm_rings(struct bnxt *bp)
221 /* Default completion ring */
223 struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
224 struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
226 rc = bnxt_hwrm_ring_alloc(bp, cp_ring,
227 HWRM_RING_ALLOC_INPUT_RING_TYPE_CMPL,
228 0, HWRM_NA_SIGNATURE,
233 (char *)bp->eth_dev->pci_dev->mem_resource[2].addr;
234 B_CP_DIS_DB(cpr, cpr->cp_raw_cons);
235 bp->grp_info[0].cp_fw_ring_id = cp_ring->fw_ring_id;
238 for (i = 0; i < bp->rx_cp_nr_rings; i++) {
239 struct bnxt_rx_queue *rxq = bp->rx_queues[i];
240 struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
241 struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
242 struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
243 struct bnxt_ring *ring = rxr->rx_ring_struct;
244 unsigned int idx = i + 1;
247 rc = bnxt_hwrm_ring_alloc(bp, cp_ring,
248 HWRM_RING_ALLOC_INPUT_RING_TYPE_CMPL,
249 idx, HWRM_NA_SIGNATURE,
254 (char *)bp->eth_dev->pci_dev->mem_resource[2].addr +
256 bp->grp_info[idx].cp_fw_ring_id = cp_ring->fw_ring_id;
257 B_CP_DIS_DB(cpr, cpr->cp_raw_cons);
260 rc = bnxt_hwrm_ring_alloc(bp, ring,
261 HWRM_RING_ALLOC_INPUT_RING_TYPE_RX,
262 idx, cpr->hw_stats_ctx_id,
263 cp_ring->fw_ring_id);
268 (char *)bp->eth_dev->pci_dev->mem_resource[2].addr +
270 bp->grp_info[idx].rx_fw_ring_id = ring->fw_ring_id;
271 B_RX_DB(rxr->rx_doorbell, rxr->rx_prod);
272 if (bnxt_init_one_rx_ring(rxq)) {
273 RTE_LOG(ERR, PMD, "bnxt_init_one_rx_ring failed!");
274 bnxt_rx_queue_release_op(rxq);
277 B_RX_DB(rxr->rx_doorbell, rxr->rx_prod);
280 for (i = 0; i < bp->tx_cp_nr_rings; i++) {
281 struct bnxt_tx_queue *txq = bp->tx_queues[i];
282 struct bnxt_cp_ring_info *cpr = txq->cp_ring;
283 struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
284 struct bnxt_tx_ring_info *txr = txq->tx_ring;
285 struct bnxt_ring *ring = txr->tx_ring_struct;
286 unsigned int idx = 1 + bp->rx_cp_nr_rings + i;
289 rc = bnxt_hwrm_ring_alloc(bp, cp_ring,
290 HWRM_RING_ALLOC_INPUT_RING_TYPE_CMPL,
291 idx, HWRM_NA_SIGNATURE,
297 (char *)bp->eth_dev->pci_dev->mem_resource[2].addr +
299 B_CP_DIS_DB(cpr, cpr->cp_raw_cons);
302 rc = bnxt_hwrm_ring_alloc(bp, ring,
303 HWRM_RING_ALLOC_INPUT_RING_TYPE_TX,
304 idx, cpr->hw_stats_ctx_id,
305 cp_ring->fw_ring_id);
310 (char *)bp->eth_dev->pci_dev->mem_resource[2].addr +