1 /* SPDX-License-Identifier: BSD-3-Clause
15 #include <sys/types.h>
16 #include <sys/syscall.h>
18 #include <rte_byteorder.h>
19 #include <rte_common.h>
21 #include <rte_debug.h>
22 #include <rte_memory.h>
23 #include <rte_tailq.h>
25 #include <rte_malloc.h>
28 #include <dpaa_mempool.h>
29 #include <dpaax_iova_table.h>
31 /* List of all the memseg information locally maintained in dpaa driver. This
32 * is to optimize the PA_to_VA searches until a better mechanism (algo) is
35 struct dpaa_memseg_list rte_dpaa_memsegs
36 = TAILQ_HEAD_INITIALIZER(rte_dpaa_memsegs);
38 struct dpaa_bp_info rte_dpaa_bpid_info[DPAA_MAX_BPOOLS];
41 dpaa_mbuf_create_pool(struct rte_mempool *mp)
44 struct bm_buffer bufs[8];
45 struct dpaa_bp_info *bp_info;
47 int num_bufs = 0, ret = 0;
48 struct bman_pool_params params = {
49 .flags = BMAN_POOL_FLAG_DYNAMIC_BPID
52 MEMPOOL_INIT_FUNC_TRACE();
54 bp = bman_new_pool(¶ms);
56 DPAA_MEMPOOL_ERR("bman_new_pool() failed");
59 bpid = bman_get_params(bp)->bpid;
61 /* Drain the pool of anything already in it. */
63 /* Acquire is all-or-nothing, so we drain in 8s,
64 * then in 1s for the remainder.
67 ret = bman_acquire(bp, bufs, 8, 0);
69 ret = bman_acquire(bp, bufs, 1, 0);
74 DPAA_MEMPOOL_WARN("drained %u bufs from BPID %d",
77 rte_dpaa_bpid_info[bpid].mp = mp;
78 rte_dpaa_bpid_info[bpid].bpid = bpid;
79 rte_dpaa_bpid_info[bpid].size = mp->elt_size;
80 rte_dpaa_bpid_info[bpid].bp = bp;
81 rte_dpaa_bpid_info[bpid].meta_data_size =
82 sizeof(struct rte_mbuf) + rte_pktmbuf_priv_size(mp);
83 rte_dpaa_bpid_info[bpid].dpaa_ops_index = mp->ops_index;
84 rte_dpaa_bpid_info[bpid].ptov_off = 0;
85 rte_dpaa_bpid_info[bpid].flags = 0;
87 bp_info = rte_malloc(NULL,
88 sizeof(struct dpaa_bp_info),
91 DPAA_MEMPOOL_WARN("Memory allocation failed for bp_info");
96 rte_memcpy(bp_info, (void *)&rte_dpaa_bpid_info[bpid],
97 sizeof(struct dpaa_bp_info));
98 mp->pool_data = (void *)bp_info;
100 DPAA_MEMPOOL_INFO("BMAN pool created for bpid =%d", bpid);
105 dpaa_mbuf_free_pool(struct rte_mempool *mp)
107 struct dpaa_bp_info *bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
109 MEMPOOL_INIT_FUNC_TRACE();
112 bman_free_pool(bp_info->bp);
113 DPAA_MEMPOOL_INFO("BMAN pool freed for bpid =%d",
115 rte_free(mp->pool_data);
116 mp->pool_data = NULL;
121 dpaa_buf_free(struct dpaa_bp_info *bp_info, uint64_t addr)
123 struct bm_buffer buf;
126 DPAA_MEMPOOL_DPDEBUG("Free 0x%" PRIx64 " to bpid: %d",
127 addr, bp_info->bpid);
129 bm_buffer_set64(&buf, addr);
131 ret = bman_release(bp_info->bp, &buf, 1, 0);
133 DPAA_MEMPOOL_DEBUG("BMAN busy. Retrying...");
134 cpu_spin(CPU_SPIN_BACKOFF_CYCLES);
140 dpaa_mbuf_free_bulk(struct rte_mempool *pool,
141 void *const *obj_table,
144 struct dpaa_bp_info *bp_info = DPAA_MEMPOOL_TO_POOL_INFO(pool);
148 DPAA_MEMPOOL_DPDEBUG("Request to free %d buffers in bpid = %d",
151 if (unlikely(!RTE_PER_LCORE(dpaa_io))) {
152 ret = rte_dpaa_portal_init((void *)0);
154 DPAA_MEMPOOL_ERR("rte_dpaa_portal_init failed with ret: %d",
161 uint64_t phy = rte_mempool_virt2iova(obj_table[i]);
163 if (unlikely(!bp_info->ptov_off)) {
164 /* buffers are from single mem segment */
165 if (bp_info->flags & DPAA_MPOOL_SINGLE_SEGMENT) {
166 bp_info->ptov_off = (size_t)obj_table[i] - phy;
167 rte_dpaa_bpid_info[bp_info->bpid].ptov_off
172 dpaa_buf_free(bp_info,
173 (uint64_t)phy + bp_info->meta_data_size);
177 DPAA_MEMPOOL_DPDEBUG("freed %d buffers in bpid =%d",
184 dpaa_mbuf_alloc_bulk(struct rte_mempool *pool,
188 struct rte_mbuf **m = (struct rte_mbuf **)obj_table;
189 struct bm_buffer bufs[DPAA_MBUF_MAX_ACQ_REL];
190 struct dpaa_bp_info *bp_info;
195 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(pool);
197 DPAA_MEMPOOL_DPDEBUG("Request to alloc %d buffers in bpid = %d",
198 count, bp_info->bpid);
200 if (unlikely(count >= (RTE_MEMPOOL_CACHE_MAX_SIZE * 2))) {
201 DPAA_MEMPOOL_ERR("Unable to allocate requested (%u) buffers",
206 if (unlikely(!RTE_PER_LCORE(dpaa_io))) {
207 ret = rte_dpaa_portal_init((void *)0);
209 DPAA_MEMPOOL_ERR("rte_dpaa_portal_init failed with ret: %d",
216 /* Acquire is all-or-nothing, so we drain in 7s,
217 * then the remainder.
219 if ((count - n) > DPAA_MBUF_MAX_ACQ_REL) {
220 ret = bman_acquire(bp_info->bp, bufs,
221 DPAA_MBUF_MAX_ACQ_REL, 0);
223 ret = bman_acquire(bp_info->bp, bufs, count - n, 0);
225 /* In case of less than requested number of buffers available
226 * in pool, qbman_swp_acquire returns 0
229 DPAA_MEMPOOL_DPDEBUG("Buffer acquire failed (%d)",
231 /* The API expect the exact number of requested
232 * buffers. Releasing all buffers allocated
234 dpaa_mbuf_free_bulk(pool, obj_table, n);
237 /* assigning mbuf from the acquired objects */
238 for (i = 0; (i < ret) && bufs[i].addr; i++) {
239 /* TODO-errata - objerved that bufs may be null
240 * i.e. first buffer is valid, remaining 6 buffers
243 bufaddr = DPAA_MEMPOOL_PTOV(bp_info, bufs[i].addr);
244 m[n] = (struct rte_mbuf *)((char *)bufaddr
245 - bp_info->meta_data_size);
246 DPAA_MEMPOOL_DPDEBUG("Paddr (%p), FD (%p) from BMAN",
247 (void *)bufaddr, (void *)m[n]);
252 DPAA_MEMPOOL_DPDEBUG("Allocated %d buffers from bpid=%d",
258 dpaa_mbuf_get_count(const struct rte_mempool *mp)
260 struct dpaa_bp_info *bp_info;
262 MEMPOOL_INIT_FUNC_TRACE();
264 if (!mp || !mp->pool_data) {
265 DPAA_MEMPOOL_ERR("Invalid mempool provided\n");
269 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
271 return bman_query_free_buffers(bp_info->bp);
275 dpaa_populate(struct rte_mempool *mp, unsigned int max_objs,
276 void *vaddr, rte_iova_t paddr, size_t len,
277 rte_mempool_populate_obj_cb_t *obj_cb, void *obj_cb_arg)
279 struct dpaa_bp_info *bp_info;
280 unsigned int total_elt_sz;
282 MEMPOOL_INIT_FUNC_TRACE();
284 if (!mp || !mp->pool_data) {
285 DPAA_MEMPOOL_ERR("Invalid mempool provided\n");
289 /* Update the PA-VA Table */
290 dpaax_iova_table_update(paddr, vaddr, len);
292 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
293 total_elt_sz = mp->header_size + mp->elt_size + mp->trailer_size;
295 DPAA_MEMPOOL_DEBUG("Req size %" PRIx64 " vs Available %u\n",
296 (uint64_t)len, total_elt_sz * mp->size);
298 /* Detect pool area has sufficient space for elements in this memzone */
299 if (len >= total_elt_sz * mp->size)
300 bp_info->flags |= DPAA_MPOOL_SINGLE_SEGMENT;
301 struct dpaa_memseg *ms;
303 /* For each memory chunk pinned to the Mempool, a linked list of the
304 * contained memsegs is created for searching when PA to VA
305 * conversion is required.
307 ms = rte_zmalloc(NULL, sizeof(struct dpaa_memseg), 0);
309 DPAA_MEMPOOL_ERR("Unable to allocate internal memory.");
310 DPAA_MEMPOOL_WARN("Fast Physical to Virtual Addr translation would not be available.");
311 /* If the element is not added, it would only lead to failure
312 * in searching for the element and the logic would Fallback
313 * to traditional DPDK memseg traversal code. So, this is not
314 * a blocking error - but, error would be printed on screen.
322 /* Head insertions are generally faster than tail insertions as the
323 * buffers pinned are picked from rear end.
325 TAILQ_INSERT_HEAD(&rte_dpaa_memsegs, ms, next);
327 return rte_mempool_op_populate_default(mp, max_objs, vaddr, paddr, len,
331 struct rte_mempool_ops dpaa_mpool_ops = {
332 .name = DPAA_MEMPOOL_OPS_NAME,
333 .alloc = dpaa_mbuf_create_pool,
334 .free = dpaa_mbuf_free_pool,
335 .enqueue = dpaa_mbuf_free_bulk,
336 .dequeue = dpaa_mbuf_alloc_bulk,
337 .get_count = dpaa_mbuf_get_count,
338 .populate = dpaa_populate,
341 MEMPOOL_REGISTER_OPS(dpaa_mpool_ops);