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RDMA/irdma: Add irdma_cq fields to track pbl allocations

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These fields will be used in a subsequent commit which adds
refcounting to user CQ MRs.

Signed-off-by: Jacob Moroni <jmoroni@google.com>
Link: https://patch.msgid.link/20260618201458.875740-4-jmoroni@google.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Jacob Moroni 2026-06-18 20:14:57 +00:00 committed by Leon Romanovsky
parent a7d0a6b582
commit 971e99623e
2 changed files with 17 additions and 10 deletions
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25
drivers/infiniband/hw/irdma/verbs.c
View File

@ -2129,6 +2129,11 @@ static int irdma_resize_cq(struct ib_cq *ibcq, unsigned int entries,
goto error;
spin_lock_irqsave(&iwcq->lock, flags);
if (udata)
/* Only update if the resize was successful. Otherwise, HW is
* still pointing to the old PBL.
*/
iwcq->iwpbl = iwpbl_buf;
if (cq_buf) {
cq_buf->kmem_buf = iwcq->kmem;
cq_buf->hw = dev->hw;
@ -2499,6 +2504,8 @@ static int irdma_create_cq(struct ib_cq *ibcq,
INIT_LIST_HEAD(&iwcq->resize_list);
INIT_LIST_HEAD(&iwcq->cmpl_generated);
iwcq->cq_num = cq_num;
iwcq->iwpbl = NULL;
iwcq->iwpbl_shadow = NULL;
info.dev = dev;
ukinfo->cq_size = max(entries, 4);
ukinfo->cq_id = cq_num;
@ -2518,8 +2525,6 @@ static int irdma_create_cq(struct ib_cq *ibcq,
struct irdma_ucontext *ucontext;
struct irdma_create_cq_req req = {};
struct irdma_cq_mr *cqmr;
struct irdma_pbl *iwpbl;
struct irdma_pbl *iwpbl_shadow;
struct irdma_cq_mr *cqmr_shadow;
iwcq->user_mode = true;
@ -2533,34 +2538,34 @@ static int irdma_create_cq(struct ib_cq *ibcq,
}
spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
iwpbl = irdma_get_pbl((unsigned long)req.user_cq_buf,
&ucontext->cq_reg_mem_list);
iwcq->iwpbl = irdma_get_pbl((unsigned long)req.user_cq_buf,
&ucontext->cq_reg_mem_list);
spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
if (!iwpbl) {
if (!iwcq->iwpbl) {
err_code = -EPROTO;
goto cq_free_rsrc;
}
cqmr = &iwpbl->cq_mr;
cqmr = &iwcq->iwpbl->cq_mr;
if (rf->sc_dev.hw_attrs.uk_attrs.feature_flags &
IRDMA_FEATURE_CQ_RESIZE) {
spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
iwpbl_shadow = irdma_get_pbl(
iwcq->iwpbl_shadow = irdma_get_pbl(
(unsigned long)req.user_shadow_area,
&ucontext->cq_reg_mem_list);
spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
if (!iwpbl_shadow) {
if (!iwcq->iwpbl_shadow) {
err_code = -EPROTO;
goto cq_free_rsrc;
}
cqmr_shadow = &iwpbl_shadow->cq_mr;
cqmr_shadow = &iwcq->iwpbl_shadow->cq_mr;
info.shadow_area_pa = cqmr_shadow->cq_pbl.addr;
} else {
info.shadow_area_pa = cqmr->shadow;
}
if (iwpbl->pbl_allocated) {
if (iwcq->iwpbl->pbl_allocated) {
info.virtual_map = true;
info.pbl_chunk_size = 1;
info.first_pm_pbl_idx = cqmr->cq_pbl.idx;

2
drivers/infiniband/hw/irdma/verbs.h
View File

@ -153,6 +153,8 @@ struct irdma_cq {
struct list_head resize_list;
struct irdma_cq_poll_info cur_cqe;
struct list_head cmpl_generated;
struct irdma_pbl *iwpbl;
struct irdma_pbl *iwpbl_shadow;
};
struct irdma_cmpl_gen {