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path: root/net/smc/smc_wr.c
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Diffstat (limited to 'net/smc/smc_wr.c')
-rw-r--r--net/smc/smc_wr.c71
1 files changed, 36 insertions, 35 deletions
diff --git a/net/smc/smc_wr.c b/net/smc/smc_wr.c
index 994c0cd4fddb..5feafa98ab1a 100644
--- a/net/smc/smc_wr.c
+++ b/net/smc/smc_wr.c
@@ -439,7 +439,7 @@ static inline void smc_wr_rx_demultiplex(struct ib_wc *wc)
return; /* short message */
temp_wr_id = wc->wr_id;
index = do_div(temp_wr_id, link->wr_rx_cnt);
- wr_rx = (struct smc_wr_rx_hdr *)&link->wr_rx_bufs[index];
+ wr_rx = (struct smc_wr_rx_hdr *)(link->wr_rx_bufs + index * link->wr_rx_buflen);
hash_for_each_possible(smc_wr_rx_hash, handler, list, wr_rx->type) {
if (handler->type == wr_rx->type)
handler->handler(wc, wr_rx);
@@ -547,15 +547,14 @@ void smc_wr_remember_qp_attr(struct smc_link *lnk)
IB_QP_DEST_QPN,
&init_attr);
- lnk->wr_tx_cnt = min_t(size_t, SMC_WR_BUF_CNT,
+ lnk->wr_tx_cnt = min_t(size_t, lnk->max_send_wr,
lnk->qp_attr.cap.max_send_wr);
- lnk->wr_rx_cnt = min_t(size_t, SMC_WR_BUF_CNT * 3,
+ lnk->wr_rx_cnt = min_t(size_t, lnk->max_recv_wr,
lnk->qp_attr.cap.max_recv_wr);
}
static void smc_wr_init_sge(struct smc_link *lnk)
{
- int sges_per_buf = (lnk->lgr->smc_version == SMC_V2) ? 2 : 1;
bool send_inline = (lnk->qp_attr.cap.max_inline_data > SMC_WR_TX_SIZE);
u32 i;
@@ -608,13 +607,14 @@ static void smc_wr_init_sge(struct smc_link *lnk)
* the larger spillover buffer, allowing easy data mapping.
*/
for (i = 0; i < lnk->wr_rx_cnt; i++) {
- int x = i * sges_per_buf;
+ int x = i * lnk->wr_rx_sge_cnt;
lnk->wr_rx_sges[x].addr =
- lnk->wr_rx_dma_addr + i * SMC_WR_BUF_SIZE;
- lnk->wr_rx_sges[x].length = SMC_WR_TX_SIZE;
+ lnk->wr_rx_dma_addr + i * lnk->wr_rx_buflen;
+ lnk->wr_rx_sges[x].length = smc_link_shared_v2_rxbuf(lnk) ?
+ SMC_WR_TX_SIZE : lnk->wr_rx_buflen;
lnk->wr_rx_sges[x].lkey = lnk->roce_pd->local_dma_lkey;
- if (lnk->lgr->smc_version == SMC_V2) {
+ if (lnk->lgr->smc_version == SMC_V2 && smc_link_shared_v2_rxbuf(lnk)) {
lnk->wr_rx_sges[x + 1].addr =
lnk->wr_rx_v2_dma_addr + SMC_WR_TX_SIZE;
lnk->wr_rx_sges[x + 1].length =
@@ -624,7 +624,7 @@ static void smc_wr_init_sge(struct smc_link *lnk)
}
lnk->wr_rx_ibs[i].next = NULL;
lnk->wr_rx_ibs[i].sg_list = &lnk->wr_rx_sges[x];
- lnk->wr_rx_ibs[i].num_sge = sges_per_buf;
+ lnk->wr_rx_ibs[i].num_sge = lnk->wr_rx_sge_cnt;
}
lnk->wr_reg.wr.next = NULL;
lnk->wr_reg.wr.num_sge = 0;
@@ -655,7 +655,7 @@ void smc_wr_free_link(struct smc_link *lnk)
if (lnk->wr_rx_dma_addr) {
ib_dma_unmap_single(ibdev, lnk->wr_rx_dma_addr,
- SMC_WR_BUF_SIZE * lnk->wr_rx_cnt,
+ lnk->wr_rx_buflen * lnk->wr_rx_cnt,
DMA_FROM_DEVICE);
lnk->wr_rx_dma_addr = 0;
}
@@ -740,53 +740,52 @@ int smc_wr_alloc_lgr_mem(struct smc_link_group *lgr)
int smc_wr_alloc_link_mem(struct smc_link *link)
{
- int sges_per_buf = link->lgr->smc_version == SMC_V2 ? 2 : 1;
-
/* allocate link related memory */
- link->wr_tx_bufs = kcalloc(SMC_WR_BUF_CNT, SMC_WR_BUF_SIZE, GFP_KERNEL);
+ link->wr_tx_bufs = kcalloc(link->max_send_wr,
+ SMC_WR_BUF_SIZE, GFP_KERNEL);
if (!link->wr_tx_bufs)
goto no_mem;
- link->wr_rx_bufs = kcalloc(SMC_WR_BUF_CNT * 3, SMC_WR_BUF_SIZE,
+ link->wr_rx_bufs = kcalloc(link->max_recv_wr, link->wr_rx_buflen,
GFP_KERNEL);
if (!link->wr_rx_bufs)
goto no_mem_wr_tx_bufs;
- link->wr_tx_ibs = kcalloc(SMC_WR_BUF_CNT, sizeof(link->wr_tx_ibs[0]),
- GFP_KERNEL);
+ link->wr_tx_ibs = kcalloc(link->max_send_wr,
+ sizeof(link->wr_tx_ibs[0]), GFP_KERNEL);
if (!link->wr_tx_ibs)
goto no_mem_wr_rx_bufs;
- link->wr_rx_ibs = kcalloc(SMC_WR_BUF_CNT * 3,
+ link->wr_rx_ibs = kcalloc(link->max_recv_wr,
sizeof(link->wr_rx_ibs[0]),
GFP_KERNEL);
if (!link->wr_rx_ibs)
goto no_mem_wr_tx_ibs;
- link->wr_tx_rdmas = kcalloc(SMC_WR_BUF_CNT,
+ link->wr_tx_rdmas = kcalloc(link->max_send_wr,
sizeof(link->wr_tx_rdmas[0]),
GFP_KERNEL);
if (!link->wr_tx_rdmas)
goto no_mem_wr_rx_ibs;
- link->wr_tx_rdma_sges = kcalloc(SMC_WR_BUF_CNT,
+ link->wr_tx_rdma_sges = kcalloc(link->max_send_wr,
sizeof(link->wr_tx_rdma_sges[0]),
GFP_KERNEL);
if (!link->wr_tx_rdma_sges)
goto no_mem_wr_tx_rdmas;
- link->wr_tx_sges = kcalloc(SMC_WR_BUF_CNT, sizeof(link->wr_tx_sges[0]),
+ link->wr_tx_sges = kcalloc(link->max_send_wr, sizeof(link->wr_tx_sges[0]),
GFP_KERNEL);
if (!link->wr_tx_sges)
goto no_mem_wr_tx_rdma_sges;
- link->wr_rx_sges = kcalloc(SMC_WR_BUF_CNT * 3,
- sizeof(link->wr_rx_sges[0]) * sges_per_buf,
+ link->wr_rx_sges = kcalloc(link->max_recv_wr,
+ sizeof(link->wr_rx_sges[0]) * link->wr_rx_sge_cnt,
GFP_KERNEL);
if (!link->wr_rx_sges)
goto no_mem_wr_tx_sges;
- link->wr_tx_mask = bitmap_zalloc(SMC_WR_BUF_CNT, GFP_KERNEL);
+ link->wr_tx_mask = bitmap_zalloc(link->max_send_wr, GFP_KERNEL);
if (!link->wr_tx_mask)
goto no_mem_wr_rx_sges;
- link->wr_tx_pends = kcalloc(SMC_WR_BUF_CNT,
+ link->wr_tx_pends = kcalloc(link->max_send_wr,
sizeof(link->wr_tx_pends[0]),
GFP_KERNEL);
if (!link->wr_tx_pends)
goto no_mem_wr_tx_mask;
- link->wr_tx_compl = kcalloc(SMC_WR_BUF_CNT,
+ link->wr_tx_compl = kcalloc(link->max_send_wr,
sizeof(link->wr_tx_compl[0]),
GFP_KERNEL);
if (!link->wr_tx_compl)
@@ -872,7 +871,7 @@ int smc_wr_create_link(struct smc_link *lnk)
smc_wr_tx_set_wr_id(&lnk->wr_tx_id, 0);
lnk->wr_rx_id = 0;
lnk->wr_rx_dma_addr = ib_dma_map_single(
- ibdev, lnk->wr_rx_bufs, SMC_WR_BUF_SIZE * lnk->wr_rx_cnt,
+ ibdev, lnk->wr_rx_bufs, lnk->wr_rx_buflen * lnk->wr_rx_cnt,
DMA_FROM_DEVICE);
if (ib_dma_mapping_error(ibdev, lnk->wr_rx_dma_addr)) {
lnk->wr_rx_dma_addr = 0;
@@ -880,13 +879,15 @@ int smc_wr_create_link(struct smc_link *lnk)
goto out;
}
if (lnk->lgr->smc_version == SMC_V2) {
- lnk->wr_rx_v2_dma_addr = ib_dma_map_single(ibdev,
- lnk->lgr->wr_rx_buf_v2, SMC_WR_BUF_V2_SIZE,
- DMA_FROM_DEVICE);
- if (ib_dma_mapping_error(ibdev, lnk->wr_rx_v2_dma_addr)) {
- lnk->wr_rx_v2_dma_addr = 0;
- rc = -EIO;
- goto dma_unmap;
+ if (smc_link_shared_v2_rxbuf(lnk)) {
+ lnk->wr_rx_v2_dma_addr =
+ ib_dma_map_single(ibdev, lnk->lgr->wr_rx_buf_v2,
+ SMC_WR_BUF_V2_SIZE, DMA_FROM_DEVICE);
+ if (ib_dma_mapping_error(ibdev, lnk->wr_rx_v2_dma_addr)) {
+ lnk->wr_rx_v2_dma_addr = 0;
+ rc = -EIO;
+ goto dma_unmap;
+ }
}
lnk->wr_tx_v2_dma_addr = ib_dma_map_single(ibdev,
lnk->lgr->wr_tx_buf_v2, SMC_WR_BUF_V2_SIZE,
@@ -905,7 +906,7 @@ int smc_wr_create_link(struct smc_link *lnk)
goto dma_unmap;
}
smc_wr_init_sge(lnk);
- bitmap_zero(lnk->wr_tx_mask, SMC_WR_BUF_CNT);
+ bitmap_zero(lnk->wr_tx_mask, lnk->max_send_wr);
init_waitqueue_head(&lnk->wr_tx_wait);
rc = percpu_ref_init(&lnk->wr_tx_refs, smcr_wr_tx_refs_free, 0, GFP_KERNEL);
if (rc)
@@ -935,7 +936,7 @@ dma_unmap:
lnk->wr_tx_v2_dma_addr = 0;
}
ib_dma_unmap_single(ibdev, lnk->wr_rx_dma_addr,
- SMC_WR_BUF_SIZE * lnk->wr_rx_cnt,
+ lnk->wr_rx_buflen * lnk->wr_rx_cnt,
DMA_FROM_DEVICE);
lnk->wr_rx_dma_addr = 0;
out:
generated by cgit (git 2.34.1) at 2025-12-24 21:27:08 +0000