#include <rte_mbuf.h>
#include <rte_malloc.h>
-#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
#include <rte_common.h>
#include "mlx5_utils.h"
/**
- * Map locally UAR used in Tx queues for BlueFlame doorbell.
+ * Mmap TX UAR(HW doorbell) pages into reserved UAR address space.
+ * Both primary and secondary process do mmap to make UAR address
+ * aligned.
*
* @param[in] priv
* Pointer to private structure.
uintptr_t pages[priv->txqs_n];
unsigned int pages_n = 0;
uintptr_t uar_va;
+ uintptr_t off;
void *addr;
+ void *ret;
struct mlx5_txq_data *txq;
struct mlx5_txq_ctrl *txq_ctrl;
int already_mapped;
size_t page_size = sysconf(_SC_PAGESIZE);
+ int r;
memset(pages, 0, priv->txqs_n * sizeof(uintptr_t));
/*
for (i = 0; i != priv->txqs_n; ++i) {
txq = (*priv->txqs)[i];
txq_ctrl = container_of(txq, struct mlx5_txq_ctrl, txq);
- uar_va = (uintptr_t)txq_ctrl->txq.bf_reg;
- uar_va = RTE_ALIGN_FLOOR(uar_va, page_size);
+ /* UAR addr form verbs used to find dup and offset in page. */
+ uar_va = (uintptr_t)txq_ctrl->bf_reg_orig;
+ off = uar_va & (page_size - 1); /* offset in page. */
+ uar_va = RTE_ALIGN_FLOOR(uar_va, page_size); /* page addr. */
already_mapped = 0;
for (j = 0; j != pages_n; ++j) {
if (pages[j] == uar_va) {
break;
}
}
- if (already_mapped)
- continue;
- pages[pages_n++] = uar_va;
- addr = mmap((void *)uar_va, page_size,
- PROT_WRITE, MAP_FIXED | MAP_SHARED, fd,
- txq_ctrl->uar_mmap_offset);
- if (addr != (void *)uar_va) {
- ERROR("call to mmap failed on UAR for txq %d\n", i);
- return -1;
+ /* new address in reserved UAR address space. */
+ addr = RTE_PTR_ADD(priv->uar_base,
+ uar_va & (MLX5_UAR_SIZE - 1));
+ if (!already_mapped) {
+ pages[pages_n++] = uar_va;
+ /* fixed mmap to specified address in reserved
+ * address space.
+ */
+ ret = mmap(addr, page_size,
+ PROT_WRITE, MAP_FIXED | MAP_SHARED, fd,
+ txq_ctrl->uar_mmap_offset);
+ if (ret != addr) {
+ /* fixed mmap have to return same address */
+ ERROR("call to mmap failed on UAR for txq %d\n",
+ i);
+ r = ENXIO;
+ return r;
+ }
}
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY) /* save once */
+ txq_ctrl->txq.bf_reg = RTE_PTR_ADD((void *)addr, off);
+ else
+ assert(txq_ctrl->txq.bf_reg ==
+ RTE_PTR_ADD((void *)addr, off));
}
return 0;
}
int ret = 0;
assert(txq_data);
+ priv->verbs_alloc_ctx.type = MLX5_VERBS_ALLOC_TYPE_TX_QUEUE;
+ priv->verbs_alloc_ctx.obj = txq_ctrl;
if (mlx5_getenv_int("MLX5_ENABLE_CQE_COMPRESSION")) {
ERROR("MLX5_ENABLE_CQE_COMPRESSION must never be set");
goto error;
txq_data->wqes = qp.sq.buf;
txq_data->wqe_n = log2above(qp.sq.wqe_cnt);
txq_data->qp_db = &qp.dbrec[MLX5_SND_DBR];
- txq_data->bf_reg = qp.bf.reg;
+ txq_ctrl->bf_reg_orig = qp.bf.reg;
txq_data->cq_db = cq_info.dbrec;
txq_data->cqes =
(volatile struct mlx5_cqe (*)[])
DEBUG("%p: Verbs Tx queue %p: refcnt %d", (void *)priv,
(void *)txq_ibv, rte_atomic32_read(&txq_ibv->refcnt));
LIST_INSERT_HEAD(&priv->txqsibv, txq_ibv, next);
+ priv->verbs_alloc_ctx.type = MLX5_VERBS_ALLOC_TYPE_NONE;
return txq_ibv;
error:
if (tmpl.cq)
claim_zero(ibv_destroy_cq(tmpl.cq));
if (tmpl.qp)
claim_zero(ibv_destroy_qp(tmpl.qp));
+ priv->verbs_alloc_ctx.type = MLX5_VERBS_ALLOC_TYPE_NONE;
return NULL;
}
{
unsigned int i;
struct mlx5_txq_ctrl *txq;
+ size_t page_size = sysconf(_SC_PAGESIZE);
if (!(*priv->txqs)[idx])
return 0;
txq->txq.mp2mr[i] = NULL;
}
}
+ if (priv->uar_base)
+ munmap((void *)RTE_ALIGN_FLOOR((uintptr_t)txq->txq.bf_reg,
+ page_size), page_size);
if (rte_atomic32_dec_and_test(&txq->refcnt)) {
txq_free_elts(txq);
LIST_REMOVE(txq, next);