From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/infiniband/hw/hns/hns_roce_cq.c | 558 +++++++++++++++++++++----------------------------------
1 files changed, 216 insertions(+), 342 deletions(-)
diff --git a/kernel/drivers/infiniband/hw/hns/hns_roce_cq.c b/kernel/drivers/infiniband/hw/hns/hns_roce_cq.c
index 3a485f5..9200e64 100644
--- a/kernel/drivers/infiniband/hw/hns/hns_roce_cq.c
+++ b/kernel/drivers/infiniband/hw/hns/hns_roce_cq.c
@@ -32,108 +32,47 @@
#include <linux/platform_device.h>
#include <rdma/ib_umem.h>
+#include <rdma/uverbs_ioctl.h>
#include "hns_roce_device.h"
#include "hns_roce_cmd.h"
#include "hns_roce_hem.h"
#include <rdma/hns-abi.h>
#include "hns_roce_common.h"
-static void hns_roce_ib_cq_comp(struct hns_roce_cq *hr_cq)
+static int alloc_cqc(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq)
{
- struct ib_cq *ibcq = &hr_cq->ib_cq;
-
- ibcq->comp_handler(ibcq, ibcq->cq_context);
-}
-
-static void hns_roce_ib_cq_event(struct hns_roce_cq *hr_cq,
- enum hns_roce_event event_type)
-{
- struct hns_roce_dev *hr_dev;
- struct ib_event event;
- struct ib_cq *ibcq;
-
- ibcq = &hr_cq->ib_cq;
- hr_dev = to_hr_dev(ibcq->device);
-
- if (event_type != HNS_ROCE_EVENT_TYPE_CQ_ID_INVALID &&
- event_type != HNS_ROCE_EVENT_TYPE_CQ_ACCESS_ERROR &&
- event_type != HNS_ROCE_EVENT_TYPE_CQ_OVERFLOW) {
- dev_err(hr_dev->dev,
- "hns_roce_ib: Unexpected event type 0x%x on CQ %06lx\n",
- event_type, hr_cq->cqn);
- return;
- }
-
- if (ibcq->event_handler) {
- event.device = ibcq->device;
- event.event = IB_EVENT_CQ_ERR;
- event.element.cq = ibcq;
- ibcq->event_handler(&event, ibcq->cq_context);
- }
-}
-
-static int hns_roce_sw2hw_cq(struct hns_roce_dev *dev,
- struct hns_roce_cmd_mailbox *mailbox,
- unsigned long cq_num)
-{
- return hns_roce_cmd_mbox(dev, mailbox->dma, 0, cq_num, 0,
- HNS_ROCE_CMD_SW2HW_CQ, HNS_ROCE_CMD_TIMEOUT_MSECS);
-}
-
-static int hns_roce_cq_alloc(struct hns_roce_dev *hr_dev, int nent,
- struct hns_roce_mtt *hr_mtt,
- struct hns_roce_uar *hr_uar,
- struct hns_roce_cq *hr_cq, int vector)
-{
+ struct ib_device *ibdev = &hr_dev->ib_dev;
struct hns_roce_cmd_mailbox *mailbox;
- struct hns_roce_hem_table *mtt_table;
struct hns_roce_cq_table *cq_table;
- struct device *dev = hr_dev->dev;
+ u64 mtts[MTT_MIN_COUNT] = { 0 };
dma_addr_t dma_handle;
- u64 *mtts;
int ret;
+ ret = hns_roce_mtr_find(hr_dev, &hr_cq->mtr, 0, mtts, ARRAY_SIZE(mtts),
+ &dma_handle);
+ if (!ret) {
+ ibdev_err(ibdev, "failed to find CQ mtr, ret = %d.\n", ret);
+ return -EINVAL;
+ }
+
cq_table = &hr_dev->cq_table;
-
- /* Get the physical address of cq buf */
- if (hns_roce_check_whether_mhop(hr_dev, HEM_TYPE_CQE))
- mtt_table = &hr_dev->mr_table.mtt_cqe_table;
- else
- mtt_table = &hr_dev->mr_table.mtt_table;
-
- mtts = hns_roce_table_find(hr_dev, mtt_table,
- hr_mtt->first_seg, &dma_handle);
- if (!mtts) {
- dev_err(dev, "CQ alloc.Failed to find cq buf addr.\n");
- return -EINVAL;
- }
-
- if (vector >= hr_dev->caps.num_comp_vectors) {
- dev_err(dev, "CQ alloc.Invalid vector.\n");
- return -EINVAL;
- }
- hr_cq->vector = vector;
-
ret = hns_roce_bitmap_alloc(&cq_table->bitmap, &hr_cq->cqn);
- if (ret == -1) {
- dev_err(dev, "CQ alloc.Failed to alloc index.\n");
- return -ENOMEM;
+ if (ret) {
+ ibdev_err(ibdev, "failed to alloc CQ bitmap, ret = %d.\n", ret);
+ return ret;
}
/* Get CQC memory HEM(Hardware Entry Memory) table */
ret = hns_roce_table_get(hr_dev, &cq_table->table, hr_cq->cqn);
if (ret) {
- dev_err(dev, "CQ alloc.Failed to get context mem.\n");
+ ibdev_err(ibdev, "failed to get CQ(0x%lx) context, ret = %d.\n",
+ hr_cq->cqn, ret);
goto err_out;
}
- /* The cq insert radix tree */
- spin_lock_irq(&cq_table->lock);
- /* Radix_tree: The associated pointer and long integer key value like */
- ret = radix_tree_insert(&cq_table->tree, hr_cq->cqn, hr_cq);
- spin_unlock_irq(&cq_table->lock);
+ ret = xa_err(xa_store(&cq_table->array, hr_cq->cqn, hr_cq, GFP_KERNEL));
if (ret) {
- dev_err(dev, "CQ alloc.Failed to radix_tree_insert.\n");
+ ibdev_err(ibdev, "failed to xa_store CQ, ret = %d.\n", ret);
goto err_put;
}
@@ -141,33 +80,32 @@
mailbox = hns_roce_alloc_cmd_mailbox(hr_dev);
if (IS_ERR(mailbox)) {
ret = PTR_ERR(mailbox);
- goto err_radix;
+ goto err_xa;
}
- hr_dev->hw->write_cqc(hr_dev, hr_cq, mailbox->buf, mtts, dma_handle,
- nent, vector);
+ hr_dev->hw->write_cqc(hr_dev, hr_cq, mailbox->buf, mtts, dma_handle);
/* Send mailbox to hw */
- ret = hns_roce_sw2hw_cq(hr_dev, mailbox, hr_cq->cqn);
+ ret = hns_roce_cmd_mbox(hr_dev, mailbox->dma, 0, hr_cq->cqn, 0,
+ HNS_ROCE_CMD_CREATE_CQC, HNS_ROCE_CMD_TIMEOUT_MSECS);
hns_roce_free_cmd_mailbox(hr_dev, mailbox);
if (ret) {
- dev_err(dev, "CQ alloc.Failed to cmd mailbox.\n");
- goto err_radix;
+ ibdev_err(ibdev,
+ "failed to send create cmd for CQ(0x%lx), ret = %d.\n",
+ hr_cq->cqn, ret);
+ goto err_xa;
}
hr_cq->cons_index = 0;
hr_cq->arm_sn = 1;
- hr_cq->uar = hr_uar;
atomic_set(&hr_cq->refcount, 1);
init_completion(&hr_cq->free);
return 0;
-err_radix:
- spin_lock_irq(&cq_table->lock);
- radix_tree_delete(&cq_table->tree, hr_cq->cqn);
- spin_unlock_irq(&cq_table->lock);
+err_xa:
+ xa_erase(&cq_table->array, hr_cq->cqn);
err_put:
hns_roce_table_put(hr_dev, &cq_table->table, hr_cq->cqn);
@@ -177,25 +115,20 @@
return ret;
}
-static int hns_roce_hw2sw_cq(struct hns_roce_dev *dev,
- struct hns_roce_cmd_mailbox *mailbox,
- unsigned long cq_num)
-{
- return hns_roce_cmd_mbox(dev, 0, mailbox ? mailbox->dma : 0, cq_num,
- mailbox ? 0 : 1, HNS_ROCE_CMD_HW2SW_CQ,
- HNS_ROCE_CMD_TIMEOUT_MSECS);
-}
-
-void hns_roce_free_cq(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq)
+static void free_cqc(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq)
{
struct hns_roce_cq_table *cq_table = &hr_dev->cq_table;
struct device *dev = hr_dev->dev;
int ret;
- ret = hns_roce_hw2sw_cq(hr_dev, NULL, hr_cq->cqn);
+ ret = hns_roce_cmd_mbox(hr_dev, 0, 0, hr_cq->cqn, 1,
+ HNS_ROCE_CMD_DESTROY_CQC,
+ HNS_ROCE_CMD_TIMEOUT_MSECS);
if (ret)
- dev_err(dev, "HW2SW_CQ failed (%d) for CQN %06lx\n", ret,
+ dev_err(dev, "DESTROY_CQ failed (%d) for CQN %06lx\n", ret,
hr_cq->cqn);
+
+ xa_erase(&cq_table->array, hr_cq->cqn);
/* Waiting interrupt process procedure carried out */
synchronize_irq(hr_dev->eq_table.eq[hr_cq->vector].irq);
@@ -205,332 +138,273 @@
complete(&hr_cq->free);
wait_for_completion(&hr_cq->free);
- spin_lock_irq(&cq_table->lock);
- radix_tree_delete(&cq_table->tree, hr_cq->cqn);
- spin_unlock_irq(&cq_table->lock);
-
hns_roce_table_put(hr_dev, &cq_table->table, hr_cq->cqn);
hns_roce_bitmap_free(&cq_table->bitmap, hr_cq->cqn, BITMAP_NO_RR);
}
-EXPORT_SYMBOL_GPL(hns_roce_free_cq);
-static int hns_roce_ib_get_cq_umem(struct hns_roce_dev *hr_dev,
- struct ib_ucontext *context,
- struct hns_roce_cq_buf *buf,
- struct ib_umem **umem, u64 buf_addr, int cqe)
+static int alloc_cq_buf(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq,
+ struct ib_udata *udata, unsigned long addr)
{
+ struct ib_device *ibdev = &hr_dev->ib_dev;
+ struct hns_roce_buf_attr buf_attr = {};
int ret;
- u32 page_shift;
- u32 npages;
- *umem = ib_umem_get(context, buf_addr, cqe * hr_dev->caps.cq_entry_sz,
- IB_ACCESS_LOCAL_WRITE, 1);
- if (IS_ERR(*umem))
- return PTR_ERR(*umem);
+ buf_attr.page_shift = hr_dev->caps.cqe_buf_pg_sz + HNS_HW_PAGE_SHIFT;
+ buf_attr.region[0].size = hr_cq->cq_depth * hr_cq->cqe_size;
+ buf_attr.region[0].hopnum = hr_dev->caps.cqe_hop_num;
+ buf_attr.region_count = 1;
+ buf_attr.fixed_page = true;
- if (hns_roce_check_whether_mhop(hr_dev, HEM_TYPE_CQE))
- buf->hr_mtt.mtt_type = MTT_TYPE_CQE;
- else
- buf->hr_mtt.mtt_type = MTT_TYPE_WQE;
+ ret = hns_roce_mtr_create(hr_dev, &hr_cq->mtr, &buf_attr,
+ hr_dev->caps.cqe_ba_pg_sz + HNS_HW_PAGE_SHIFT,
+ udata, addr);
+ if (ret)
+ ibdev_err(ibdev, "failed to alloc CQ mtr, ret = %d.\n", ret);
- if (hr_dev->caps.cqe_buf_pg_sz) {
- npages = (ib_umem_page_count(*umem) +
- (1 << hr_dev->caps.cqe_buf_pg_sz) - 1) /
- (1 << hr_dev->caps.cqe_buf_pg_sz);
- page_shift = PAGE_SHIFT + hr_dev->caps.cqe_buf_pg_sz;
- ret = hns_roce_mtt_init(hr_dev, npages, page_shift,
- &buf->hr_mtt);
+ return ret;
+}
+
+static void free_cq_buf(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq)
+{
+ hns_roce_mtr_destroy(hr_dev, &hr_cq->mtr);
+}
+
+static int alloc_cq_db(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq,
+ struct ib_udata *udata, unsigned long addr,
+ struct hns_roce_ib_create_cq_resp *resp)
+{
+ bool has_db = hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB;
+ struct hns_roce_ucontext *uctx;
+ int err;
+
+ if (udata) {
+ if (has_db &&
+ udata->outlen >= offsetofend(typeof(*resp), cap_flags)) {
+ uctx = rdma_udata_to_drv_context(udata,
+ struct hns_roce_ucontext, ibucontext);
+ err = hns_roce_db_map_user(uctx, udata, addr,
+ &hr_cq->db);
+ if (err)
+ return err;
+ hr_cq->flags |= HNS_ROCE_CQ_FLAG_RECORD_DB;
+ resp->cap_flags |= HNS_ROCE_CQ_FLAG_RECORD_DB;
+ }
} else {
- ret = hns_roce_mtt_init(hr_dev, ib_umem_page_count(*umem),
- (*umem)->page_shift,
- &buf->hr_mtt);
+ if (has_db) {
+ err = hns_roce_alloc_db(hr_dev, &hr_cq->db, 1);
+ if (err)
+ return err;
+ hr_cq->set_ci_db = hr_cq->db.db_record;
+ *hr_cq->set_ci_db = 0;
+ hr_cq->flags |= HNS_ROCE_CQ_FLAG_RECORD_DB;
+ }
+ hr_cq->cq_db_l = hr_dev->reg_base + hr_dev->odb_offset +
+ DB_REG_OFFSET * hr_dev->priv_uar.index;
}
- if (ret)
- goto err_buf;
-
- ret = hns_roce_ib_umem_write_mtt(hr_dev, &buf->hr_mtt, *umem);
- if (ret)
- goto err_mtt;
return 0;
-
-err_mtt:
- hns_roce_mtt_cleanup(hr_dev, &buf->hr_mtt);
-
-err_buf:
- ib_umem_release(*umem);
- return ret;
}
-static int hns_roce_ib_alloc_cq_buf(struct hns_roce_dev *hr_dev,
- struct hns_roce_cq_buf *buf, u32 nent)
+static void free_cq_db(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq,
+ struct ib_udata *udata)
{
- int ret;
- u32 page_shift = PAGE_SHIFT + hr_dev->caps.cqe_buf_pg_sz;
+ struct hns_roce_ucontext *uctx;
- ret = hns_roce_buf_alloc(hr_dev, nent * hr_dev->caps.cq_entry_sz,
- (1 << page_shift) * 2, &buf->hr_buf,
- page_shift);
- if (ret)
- goto out;
+ if (!(hr_cq->flags & HNS_ROCE_CQ_FLAG_RECORD_DB))
+ return;
- if (hns_roce_check_whether_mhop(hr_dev, HEM_TYPE_CQE))
- buf->hr_mtt.mtt_type = MTT_TYPE_CQE;
- else
- buf->hr_mtt.mtt_type = MTT_TYPE_WQE;
-
- ret = hns_roce_mtt_init(hr_dev, buf->hr_buf.npages,
- buf->hr_buf.page_shift, &buf->hr_mtt);
- if (ret)
- goto err_buf;
-
- ret = hns_roce_buf_write_mtt(hr_dev, &buf->hr_mtt, &buf->hr_buf);
- if (ret)
- goto err_mtt;
-
- return 0;
-
-err_mtt:
- hns_roce_mtt_cleanup(hr_dev, &buf->hr_mtt);
-
-err_buf:
- hns_roce_buf_free(hr_dev, nent * hr_dev->caps.cq_entry_sz,
- &buf->hr_buf);
-out:
- return ret;
+ hr_cq->flags &= ~HNS_ROCE_CQ_FLAG_RECORD_DB;
+ if (udata) {
+ uctx = rdma_udata_to_drv_context(udata,
+ struct hns_roce_ucontext,
+ ibucontext);
+ hns_roce_db_unmap_user(uctx, &hr_cq->db);
+ } else {
+ hns_roce_free_db(hr_dev, &hr_cq->db);
+ }
}
-static void hns_roce_ib_free_cq_buf(struct hns_roce_dev *hr_dev,
- struct hns_roce_cq_buf *buf, int cqe)
+static void set_cqe_size(struct hns_roce_cq *hr_cq, struct ib_udata *udata,
+ struct hns_roce_ib_create_cq *ucmd)
{
- hns_roce_buf_free(hr_dev, (cqe + 1) * hr_dev->caps.cq_entry_sz,
- &buf->hr_buf);
+ struct hns_roce_dev *hr_dev = to_hr_dev(hr_cq->ib_cq.device);
+
+ if (udata) {
+ if (udata->inlen >= offsetofend(typeof(*ucmd), cqe_size))
+ hr_cq->cqe_size = ucmd->cqe_size;
+ else
+ hr_cq->cqe_size = HNS_ROCE_V2_CQE_SIZE;
+ } else {
+ hr_cq->cqe_size = hr_dev->caps.cqe_sz;
+ }
}
-struct ib_cq *hns_roce_ib_create_cq(struct ib_device *ib_dev,
- const struct ib_cq_init_attr *attr,
- struct ib_ucontext *context,
- struct ib_udata *udata)
+int hns_roce_create_cq(struct ib_cq *ib_cq, const struct ib_cq_init_attr *attr,
+ struct ib_udata *udata)
{
- struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev);
- struct device *dev = hr_dev->dev;
- struct hns_roce_ib_create_cq ucmd;
+ struct hns_roce_dev *hr_dev = to_hr_dev(ib_cq->device);
struct hns_roce_ib_create_cq_resp resp = {};
- struct hns_roce_cq *hr_cq = NULL;
- struct hns_roce_uar *uar = NULL;
+ struct hns_roce_cq *hr_cq = to_hr_cq(ib_cq);
+ struct ib_device *ibdev = &hr_dev->ib_dev;
+ struct hns_roce_ib_create_cq ucmd = {};
int vector = attr->comp_vector;
- int cq_entries = attr->cqe;
+ u32 cq_entries = attr->cqe;
int ret;
if (cq_entries < 1 || cq_entries > hr_dev->caps.max_cqes) {
- dev_err(dev, "Creat CQ failed. entries=%d, max=%d\n",
- cq_entries, hr_dev->caps.max_cqes);
- return ERR_PTR(-EINVAL);
+ ibdev_err(ibdev, "failed to check CQ count %u, max = %u.\n",
+ cq_entries, hr_dev->caps.max_cqes);
+ return -EINVAL;
}
- hr_cq = kzalloc(sizeof(*hr_cq), GFP_KERNEL);
- if (!hr_cq)
- return ERR_PTR(-ENOMEM);
+ if (vector >= hr_dev->caps.num_comp_vectors) {
+ ibdev_err(ibdev, "failed to check CQ vector = %d, max = %d.\n",
+ vector, hr_dev->caps.num_comp_vectors);
+ return -EINVAL;
+ }
- if (hr_dev->caps.min_cqes)
- cq_entries = max(cq_entries, hr_dev->caps.min_cqes);
-
- cq_entries = roundup_pow_of_two((unsigned int)cq_entries);
- hr_cq->ib_cq.cqe = cq_entries - 1;
+ cq_entries = max(cq_entries, hr_dev->caps.min_cqes);
+ cq_entries = roundup_pow_of_two(cq_entries);
+ hr_cq->ib_cq.cqe = cq_entries - 1; /* used as cqe index */
+ hr_cq->cq_depth = cq_entries;
+ hr_cq->vector = vector;
spin_lock_init(&hr_cq->lock);
+ INIT_LIST_HEAD(&hr_cq->sq_list);
+ INIT_LIST_HEAD(&hr_cq->rq_list);
- if (context) {
- if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd))) {
- dev_err(dev, "Failed to copy_from_udata.\n");
- ret = -EFAULT;
- goto err_cq;
- }
-
- /* Get user space address, write it into mtt table */
- ret = hns_roce_ib_get_cq_umem(hr_dev, context, &hr_cq->hr_buf,
- &hr_cq->umem, ucmd.buf_addr,
- cq_entries);
+ if (udata) {
+ ret = ib_copy_from_udata(&ucmd, udata,
+ min(udata->inlen, sizeof(ucmd)));
if (ret) {
- dev_err(dev, "Failed to get_cq_umem.\n");
- goto err_cq;
+ ibdev_err(ibdev, "failed to copy CQ udata, ret = %d.\n",
+ ret);
+ return ret;
}
-
- if ((hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) &&
- (udata->outlen >= sizeof(resp))) {
- ret = hns_roce_db_map_user(to_hr_ucontext(context),
- ucmd.db_addr, &hr_cq->db);
- if (ret) {
- dev_err(dev, "cq record doorbell map failed!\n");
- goto err_mtt;
- }
- hr_cq->db_en = 1;
- resp.cap_flags |= HNS_ROCE_SUPPORT_CQ_RECORD_DB;
- }
-
- /* Get user space parameters */
- uar = &to_hr_ucontext(context)->uar;
- } else {
- if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) {
- ret = hns_roce_alloc_db(hr_dev, &hr_cq->db, 1);
- if (ret)
- goto err_cq;
-
- hr_cq->set_ci_db = hr_cq->db.db_record;
- *hr_cq->set_ci_db = 0;
- hr_cq->db_en = 1;
- }
-
- /* Init mmt table and write buff address to mtt table */
- ret = hns_roce_ib_alloc_cq_buf(hr_dev, &hr_cq->hr_buf,
- cq_entries);
- if (ret) {
- dev_err(dev, "Failed to alloc_cq_buf.\n");
- goto err_db;
- }
-
- uar = &hr_dev->priv_uar;
- hr_cq->cq_db_l = hr_dev->reg_base + hr_dev->odb_offset +
- DB_REG_OFFSET * uar->index;
}
- /* Allocate cq index, fill cq_context */
- ret = hns_roce_cq_alloc(hr_dev, cq_entries, &hr_cq->hr_buf.hr_mtt, uar,
- hr_cq, vector);
+ set_cqe_size(hr_cq, udata, &ucmd);
+
+ ret = alloc_cq_buf(hr_dev, hr_cq, udata, ucmd.buf_addr);
if (ret) {
- dev_err(dev, "Creat CQ .Failed to cq_alloc.\n");
- goto err_dbmap;
+ ibdev_err(ibdev, "failed to alloc CQ buf, ret = %d.\n", ret);
+ return ret;
+ }
+
+ ret = alloc_cq_db(hr_dev, hr_cq, udata, ucmd.db_addr, &resp);
+ if (ret) {
+ ibdev_err(ibdev, "failed to alloc CQ db, ret = %d.\n", ret);
+ goto err_cq_buf;
+ }
+
+ ret = alloc_cqc(hr_dev, hr_cq);
+ if (ret) {
+ ibdev_err(ibdev,
+ "failed to alloc CQ context, ret = %d.\n", ret);
+ goto err_cq_db;
}
/*
* For the QP created by kernel space, tptr value should be initialized
* to zero; For the QP created by user space, it will cause synchronous
- * problems if tptr is set to zero here, so we initialze it in user
+ * problems if tptr is set to zero here, so we initialize it in user
* space.
*/
- if (!context && hr_cq->tptr_addr)
+ if (!udata && hr_cq->tptr_addr)
*hr_cq->tptr_addr = 0;
- /* Get created cq handler and carry out event */
- hr_cq->comp = hns_roce_ib_cq_comp;
- hr_cq->event = hns_roce_ib_cq_event;
- hr_cq->cq_depth = cq_entries;
-
- if (context) {
+ if (udata) {
resp.cqn = hr_cq->cqn;
- ret = ib_copy_to_udata(udata, &resp, sizeof(resp));
+ ret = ib_copy_to_udata(udata, &resp,
+ min(udata->outlen, sizeof(resp)));
if (ret)
goto err_cqc;
}
- return &hr_cq->ib_cq;
+ return 0;
err_cqc:
- hns_roce_free_cq(hr_dev, hr_cq);
-
-err_dbmap:
- if (context && (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) &&
- (udata->outlen >= sizeof(resp)))
- hns_roce_db_unmap_user(to_hr_ucontext(context),
- &hr_cq->db);
-
-err_mtt:
- hns_roce_mtt_cleanup(hr_dev, &hr_cq->hr_buf.hr_mtt);
- if (context)
- ib_umem_release(hr_cq->umem);
- else
- hns_roce_ib_free_cq_buf(hr_dev, &hr_cq->hr_buf,
- hr_cq->ib_cq.cqe);
-
-err_db:
- if (!context && (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB))
- hns_roce_free_db(hr_dev, &hr_cq->db);
-
-err_cq:
- kfree(hr_cq);
- return ERR_PTR(ret);
+ free_cqc(hr_dev, hr_cq);
+err_cq_db:
+ free_cq_db(hr_dev, hr_cq, udata);
+err_cq_buf:
+ free_cq_buf(hr_dev, hr_cq);
+ return ret;
}
-EXPORT_SYMBOL_GPL(hns_roce_ib_create_cq);
-int hns_roce_ib_destroy_cq(struct ib_cq *ib_cq)
+int hns_roce_destroy_cq(struct ib_cq *ib_cq, struct ib_udata *udata)
{
struct hns_roce_dev *hr_dev = to_hr_dev(ib_cq->device);
struct hns_roce_cq *hr_cq = to_hr_cq(ib_cq);
- int ret = 0;
- if (hr_dev->hw->destroy_cq) {
- ret = hr_dev->hw->destroy_cq(ib_cq);
- } else {
- hns_roce_free_cq(hr_dev, hr_cq);
- hns_roce_mtt_cleanup(hr_dev, &hr_cq->hr_buf.hr_mtt);
+ if (hr_dev->hw->destroy_cq)
+ hr_dev->hw->destroy_cq(ib_cq, udata);
- if (ib_cq->uobject) {
- ib_umem_release(hr_cq->umem);
-
- if (hr_cq->db_en == 1)
- hns_roce_db_unmap_user(
- to_hr_ucontext(ib_cq->uobject->context),
- &hr_cq->db);
- } else {
- /* Free the buff of stored cq */
- hns_roce_ib_free_cq_buf(hr_dev, &hr_cq->hr_buf,
- ib_cq->cqe);
- if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB)
- hns_roce_free_db(hr_dev, &hr_cq->db);
- }
-
- kfree(hr_cq);
- }
-
- return ret;
+ free_cq_buf(hr_dev, hr_cq);
+ free_cq_db(hr_dev, hr_cq, udata);
+ free_cqc(hr_dev, hr_cq);
+ return 0;
}
-EXPORT_SYMBOL_GPL(hns_roce_ib_destroy_cq);
void hns_roce_cq_completion(struct hns_roce_dev *hr_dev, u32 cqn)
{
- struct device *dev = hr_dev->dev;
- struct hns_roce_cq *cq;
+ struct hns_roce_cq *hr_cq;
+ struct ib_cq *ibcq;
- cq = radix_tree_lookup(&hr_dev->cq_table.tree,
- cqn & (hr_dev->caps.num_cqs - 1));
- if (!cq) {
- dev_warn(dev, "Completion event for bogus CQ 0x%08x\n", cqn);
+ hr_cq = xa_load(&hr_dev->cq_table.array,
+ cqn & (hr_dev->caps.num_cqs - 1));
+ if (!hr_cq) {
+ dev_warn(hr_dev->dev, "Completion event for bogus CQ 0x%06x\n",
+ cqn);
return;
}
- ++cq->arm_sn;
- cq->comp(cq);
+ ++hr_cq->arm_sn;
+ ibcq = &hr_cq->ib_cq;
+ if (ibcq->comp_handler)
+ ibcq->comp_handler(ibcq, ibcq->cq_context);
}
-EXPORT_SYMBOL_GPL(hns_roce_cq_completion);
void hns_roce_cq_event(struct hns_roce_dev *hr_dev, u32 cqn, int event_type)
{
- struct hns_roce_cq_table *cq_table = &hr_dev->cq_table;
struct device *dev = hr_dev->dev;
- struct hns_roce_cq *cq;
+ struct hns_roce_cq *hr_cq;
+ struct ib_event event;
+ struct ib_cq *ibcq;
- cq = radix_tree_lookup(&cq_table->tree,
- cqn & (hr_dev->caps.num_cqs - 1));
- if (cq)
- atomic_inc(&cq->refcount);
-
- if (!cq) {
- dev_warn(dev, "Async event for bogus CQ %08x\n", cqn);
+ hr_cq = xa_load(&hr_dev->cq_table.array,
+ cqn & (hr_dev->caps.num_cqs - 1));
+ if (!hr_cq) {
+ dev_warn(dev, "Async event for bogus CQ 0x%06x\n", cqn);
return;
}
- cq->event(cq, (enum hns_roce_event)event_type);
+ if (event_type != HNS_ROCE_EVENT_TYPE_CQ_ID_INVALID &&
+ event_type != HNS_ROCE_EVENT_TYPE_CQ_ACCESS_ERROR &&
+ event_type != HNS_ROCE_EVENT_TYPE_CQ_OVERFLOW) {
+ dev_err(dev, "Unexpected event type 0x%x on CQ 0x%06x\n",
+ event_type, cqn);
+ return;
+ }
- if (atomic_dec_and_test(&cq->refcount))
- complete(&cq->free);
+ atomic_inc(&hr_cq->refcount);
+
+ ibcq = &hr_cq->ib_cq;
+ if (ibcq->event_handler) {
+ event.device = ibcq->device;
+ event.element.cq = ibcq;
+ event.event = IB_EVENT_CQ_ERR;
+ ibcq->event_handler(&event, ibcq->cq_context);
+ }
+
+ if (atomic_dec_and_test(&hr_cq->refcount))
+ complete(&hr_cq->free);
}
-EXPORT_SYMBOL_GPL(hns_roce_cq_event);
int hns_roce_init_cq_table(struct hns_roce_dev *hr_dev)
{
struct hns_roce_cq_table *cq_table = &hr_dev->cq_table;
- spin_lock_init(&cq_table->lock);
- INIT_RADIX_TREE(&cq_table->tree, GFP_ATOMIC);
+ xa_init(&cq_table->array);
return hns_roce_bitmap_init(&cq_table->bitmap, hr_dev->caps.num_cqs,
hr_dev->caps.num_cqs - 1,
--
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