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34 #include <rte_memzone.h>
39 #include "bnxt_hwrm.h"
40 #include "bnxt_ring.h"
46 #include "hsi_struct_def_dpdk.h"
49 * Generic ring handling
52 void bnxt_free_ring(struct bnxt_ring *ring)
54 if (ring->vmem_size && *ring->vmem) {
55 memset((char *)*ring->vmem, 0, ring->vmem_size);
58 rte_memzone_free((const struct rte_memzone *)ring->mem_zone);
65 void bnxt_init_ring_grps(struct bnxt *bp)
69 for (i = 0; i < bp->max_ring_grps; i++)
70 memset(&bp->grp_info[i], (uint8_t)HWRM_NA_SIGNATURE,
71 sizeof(struct bnxt_ring_grp_info));
75 * Allocates a completion ring with vmem and stats optionally also allocating
76 * a TX and/or RX ring. Passing NULL as tx_ring_info and/or rx_ring_info
77 * to not allocate them.
79 * Order in the allocation is:
80 * stats - Always non-zero length
81 * cp vmem - Always zero-length, supported for the bnxt_ring abstraction
82 * tx vmem - Only non-zero length if tx_ring_info is not NULL
83 * rx vmem - Only non-zero length if rx_ring_info is not NULL
84 * cp bd ring - Always non-zero length
85 * tx bd ring - Only non-zero length if tx_ring_info is not NULL
86 * rx bd ring - Only non-zero length if rx_ring_info is not NULL
88 int bnxt_alloc_rings(struct bnxt *bp, uint16_t qidx,
89 struct bnxt_tx_ring_info *tx_ring_info,
90 struct bnxt_rx_ring_info *rx_ring_info,
91 struct bnxt_cp_ring_info *cp_ring_info,
94 struct bnxt_ring *cp_ring = cp_ring_info->cp_ring_struct;
95 struct bnxt_ring *tx_ring;
96 struct bnxt_ring *rx_ring;
97 struct rte_pci_device *pdev = bp->pdev;
98 const struct rte_memzone *mz = NULL;
99 char mz_name[RTE_MEMZONE_NAMESIZE];
100 phys_addr_t mz_phys_addr;
103 int stats_len = (tx_ring_info || rx_ring_info) ?
104 RTE_CACHE_LINE_ROUNDUP(sizeof(struct ctx_hw_stats64)) : 0;
106 int cp_vmem_start = stats_len;
107 int cp_vmem_len = RTE_CACHE_LINE_ROUNDUP(cp_ring->vmem_size);
109 int tx_vmem_start = cp_vmem_start + cp_vmem_len;
111 tx_ring_info ? RTE_CACHE_LINE_ROUNDUP(tx_ring_info->
112 tx_ring_struct->vmem_size) : 0;
114 int rx_vmem_start = tx_vmem_start + tx_vmem_len;
115 int rx_vmem_len = rx_ring_info ?
116 RTE_CACHE_LINE_ROUNDUP(rx_ring_info->
117 rx_ring_struct->vmem_size) : 0;
119 int cp_ring_start = rx_vmem_start + rx_vmem_len;
120 int cp_ring_len = RTE_CACHE_LINE_ROUNDUP(cp_ring->ring_size *
121 sizeof(struct cmpl_base));
123 int tx_ring_start = cp_ring_start + cp_ring_len;
124 int tx_ring_len = tx_ring_info ?
125 RTE_CACHE_LINE_ROUNDUP(tx_ring_info->tx_ring_struct->ring_size *
126 sizeof(struct tx_bd_long)) : 0;
128 int rx_ring_start = tx_ring_start + tx_ring_len;
129 int rx_ring_len = rx_ring_info ?
130 RTE_CACHE_LINE_ROUNDUP(rx_ring_info->rx_ring_struct->ring_size *
131 sizeof(struct rx_prod_pkt_bd)) : 0;
133 int total_alloc_len = rx_ring_start + rx_ring_len;
135 snprintf(mz_name, RTE_MEMZONE_NAMESIZE,
136 "bnxt_%04x:%02x:%02x:%02x-%04x_%s", pdev->addr.domain,
137 pdev->addr.bus, pdev->addr.devid, pdev->addr.function, qidx,
139 mz_name[RTE_MEMZONE_NAMESIZE - 1] = 0;
140 mz = rte_memzone_lookup(mz_name);
142 mz = rte_memzone_reserve_aligned(mz_name, total_alloc_len,
145 RTE_MEMZONE_SIZE_HINT_ONLY,
150 memset(mz->addr, 0, mz->len);
151 mz_phys_addr = mz->phys_addr;
152 if ((unsigned long)mz->addr == mz_phys_addr) {
153 RTE_LOG(WARNING, PMD,
154 "Memzone physical address same as virtual.\n");
155 RTE_LOG(WARNING, PMD,
156 "Using rte_mem_virt2phy()\n");
157 for (sz = 0; sz < total_alloc_len; sz += getpagesize())
158 rte_mem_lock_page(((char *)mz->addr) + sz);
159 mz_phys_addr = rte_mem_virt2phy(mz->addr);
160 if (mz_phys_addr == 0) {
162 "unable to map ring address to physical memory\n");
168 tx_ring = tx_ring_info->tx_ring_struct;
170 tx_ring->bd = ((char *)mz->addr + tx_ring_start);
171 tx_ring_info->tx_desc_ring = (struct tx_bd_long *)tx_ring->bd;
172 tx_ring->bd_dma = mz_phys_addr + tx_ring_start;
173 tx_ring_info->tx_desc_mapping = tx_ring->bd_dma;
174 tx_ring->mem_zone = (const void *)mz;
178 if (tx_ring->vmem_size) {
180 (void **)((char *)mz->addr + tx_vmem_start);
181 tx_ring_info->tx_buf_ring =
182 (struct bnxt_sw_tx_bd *)tx_ring->vmem;
187 rx_ring = rx_ring_info->rx_ring_struct;
189 rx_ring->bd = ((char *)mz->addr + rx_ring_start);
190 rx_ring_info->rx_desc_ring =
191 (struct rx_prod_pkt_bd *)rx_ring->bd;
192 rx_ring->bd_dma = mz_phys_addr + rx_ring_start;
193 rx_ring_info->rx_desc_mapping = rx_ring->bd_dma;
194 rx_ring->mem_zone = (const void *)mz;
198 if (rx_ring->vmem_size) {
200 (void **)((char *)mz->addr + rx_vmem_start);
201 rx_ring_info->rx_buf_ring =
202 (struct bnxt_sw_rx_bd *)rx_ring->vmem;
206 cp_ring->bd = ((char *)mz->addr + cp_ring_start);
207 cp_ring->bd_dma = mz_phys_addr + cp_ring_start;
208 cp_ring_info->cp_desc_ring = cp_ring->bd;
209 cp_ring_info->cp_desc_mapping = cp_ring->bd_dma;
210 cp_ring->mem_zone = (const void *)mz;
214 if (cp_ring->vmem_size)
215 *cp_ring->vmem = ((char *)mz->addr + stats_len);
217 cp_ring_info->hw_stats = mz->addr;
218 cp_ring_info->hw_stats_map = mz_phys_addr;
220 cp_ring_info->hw_stats_ctx_id = HWRM_NA_SIGNATURE;
225 * [0] = default completion ring
226 * [1 -> +rx_cp_nr_rings] = rx_cp, rx rings
227 * [1+rx_cp_nr_rings + 1 -> +tx_cp_nr_rings] = tx_cp, tx rings
229 int bnxt_alloc_hwrm_rings(struct bnxt *bp)
231 struct rte_pci_device *pci_dev = bp->pdev;
235 for (i = 0; i < bp->rx_cp_nr_rings; i++) {
236 struct bnxt_rx_queue *rxq = bp->rx_queues[i];
237 struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
238 struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
239 struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
240 struct bnxt_ring *ring = rxr->rx_ring_struct;
241 unsigned int idx = i + 1;
244 rc = bnxt_hwrm_ring_alloc(bp, cp_ring,
245 HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL,
246 idx, HWRM_NA_SIGNATURE);
249 cpr->cp_doorbell = (char *)pci_dev->mem_resource[2].addr +
251 bp->grp_info[idx].cp_fw_ring_id = cp_ring->fw_ring_id;
252 B_CP_DIS_DB(cpr, cpr->cp_raw_cons);
255 rc = bnxt_hwrm_ring_alloc(bp, ring,
256 HWRM_RING_ALLOC_INPUT_RING_TYPE_RX,
257 idx, cpr->hw_stats_ctx_id);
261 rxr->rx_doorbell = (char *)pci_dev->mem_resource[2].addr +
263 bp->grp_info[idx].rx_fw_ring_id = ring->fw_ring_id;
264 B_RX_DB(rxr->rx_doorbell, rxr->rx_prod);
265 if (bnxt_init_one_rx_ring(rxq)) {
266 RTE_LOG(ERR, PMD, "bnxt_init_one_rx_ring failed!\n");
267 bnxt_rx_queue_release_op(rxq);
270 B_RX_DB(rxr->rx_doorbell, rxr->rx_prod);
273 for (i = 0; i < bp->tx_cp_nr_rings; i++) {
274 struct bnxt_tx_queue *txq = bp->tx_queues[i];
275 struct bnxt_cp_ring_info *cpr = txq->cp_ring;
276 struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
277 struct bnxt_tx_ring_info *txr = txq->tx_ring;
278 struct bnxt_ring *ring = txr->tx_ring_struct;
279 unsigned int idx = 1 + bp->rx_cp_nr_rings + i;
282 rc = bnxt_hwrm_ring_alloc(bp, cp_ring,
283 HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL,
284 idx, HWRM_NA_SIGNATURE);
288 cpr->cp_doorbell = (char *)pci_dev->mem_resource[2].addr +
290 bp->grp_info[idx].cp_fw_ring_id = cp_ring->fw_ring_id;
291 B_CP_DIS_DB(cpr, cpr->cp_raw_cons);
294 rc = bnxt_hwrm_ring_alloc(bp, ring,
295 HWRM_RING_ALLOC_INPUT_RING_TYPE_TX,
296 idx, cpr->hw_stats_ctx_id);
300 txr->tx_doorbell = (char *)pci_dev->mem_resource[2].addr +