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path: root/drivers/infiniband/hw/hns/hns_roce_qp.c
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Diffstat (limited to 'drivers/infiniband/hw/hns/hns_roce_qp.c')
-rw-r--r--drivers/infiniband/hw/hns/hns_roce_qp.c1874
1 files changed, 1161 insertions, 713 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c
index 54031c5b53fa..d1640c5fbaab 100644
--- a/drivers/infiniband/hw/hns/hns_roce_qp.c
+++ b/drivers/infiniband/hw/hns/hns_roce_qp.c
@@ -31,48 +31,127 @@
* SOFTWARE.
*/
-#include <linux/pci.h>
-#include <linux/platform_device.h>
#include <rdma/ib_addr.h>
#include <rdma/ib_umem.h>
+#include <rdma/uverbs_ioctl.h>
#include "hns_roce_common.h"
#include "hns_roce_device.h"
#include "hns_roce_hem.h"
-#include <rdma/hns-abi.h>
-#define SQP_NUM (2 * HNS_ROCE_MAX_PORTS)
-
-void hns_roce_qp_event(struct hns_roce_dev *hr_dev, u32 qpn, int event_type)
+static struct hns_roce_qp *hns_roce_qp_lookup(struct hns_roce_dev *hr_dev,
+ u32 qpn)
{
- struct hns_roce_qp_table *qp_table = &hr_dev->qp_table;
struct device *dev = hr_dev->dev;
struct hns_roce_qp *qp;
+ unsigned long flags;
- spin_lock(&qp_table->lock);
-
+ xa_lock_irqsave(&hr_dev->qp_table_xa, flags);
qp = __hns_roce_qp_lookup(hr_dev, qpn);
if (qp)
- atomic_inc(&qp->refcount);
+ refcount_inc(&qp->refcount);
+ xa_unlock_irqrestore(&hr_dev->qp_table_xa, flags);
+
+ if (!qp)
+ dev_warn(dev, "async event for bogus QP %08x\n", qpn);
+
+ return qp;
+}
+
+static void flush_work_handle(struct work_struct *work)
+{
+ struct hns_roce_work *flush_work = container_of(work,
+ struct hns_roce_work, work);
+ struct hns_roce_qp *hr_qp = container_of(flush_work,
+ struct hns_roce_qp, flush_work);
+ struct device *dev = flush_work->hr_dev->dev;
+ struct ib_qp_attr attr;
+ int attr_mask;
+ int ret;
+
+ attr_mask = IB_QP_STATE;
+ attr.qp_state = IB_QPS_ERR;
+
+ if (test_and_clear_bit(HNS_ROCE_FLUSH_FLAG, &hr_qp->flush_flag)) {
+ ret = hns_roce_modify_qp(&hr_qp->ibqp, &attr, attr_mask, NULL);
+ if (ret)
+ dev_err(dev, "modify QP to error state failed(%d) during CQE flush\n",
+ ret);
+ }
+
+ /*
+ * make sure we signal QP destroy leg that flush QP was completed
+ * so that it can safely proceed ahead now and destroy QP
+ */
+ if (refcount_dec_and_test(&hr_qp->refcount))
+ complete(&hr_qp->free);
+}
- spin_unlock(&qp_table->lock);
+void init_flush_work(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp)
+{
+ struct hns_roce_work *flush_work = &hr_qp->flush_work;
+ unsigned long flags;
- if (!qp) {
- dev_warn(dev, "Async event for bogus QP %08x\n", qpn);
+ spin_lock_irqsave(&hr_qp->flush_lock, flags);
+ /* Exit directly after destroy_qp() */
+ if (test_bit(HNS_ROCE_STOP_FLUSH_FLAG, &hr_qp->flush_flag)) {
+ spin_unlock_irqrestore(&hr_qp->flush_lock, flags);
return;
}
+ refcount_inc(&hr_qp->refcount);
+ queue_work(hr_dev->irq_workq, &flush_work->work);
+ spin_unlock_irqrestore(&hr_qp->flush_lock, flags);
+}
+
+void flush_cqe(struct hns_roce_dev *dev, struct hns_roce_qp *qp)
+{
+ /*
+ * Hip08 hardware cannot flush the WQEs in SQ/RQ if the QP state
+ * gets into errored mode. Hence, as a workaround to this
+ * hardware limitation, driver needs to assist in flushing. But
+ * the flushing operation uses mailbox to convey the QP state to
+ * the hardware and which can sleep due to the mutex protection
+ * around the mailbox calls. Hence, use the deferred flush for
+ * now.
+ */
+ if (!test_and_set_bit(HNS_ROCE_FLUSH_FLAG, &qp->flush_flag))
+ init_flush_work(dev, qp);
+}
+
+void hns_roce_qp_event(struct hns_roce_dev *hr_dev, u32 qpn, int event_type)
+{
+ struct hns_roce_qp *qp;
+
+ qp = hns_roce_qp_lookup(hr_dev, qpn);
+ if (!qp)
+ return;
+
qp->event(qp, (enum hns_roce_event)event_type);
- if (atomic_dec_and_test(&qp->refcount))
+ if (refcount_dec_and_test(&qp->refcount))
+ complete(&qp->free);
+}
+
+void hns_roce_flush_cqe(struct hns_roce_dev *hr_dev, u32 qpn)
+{
+ struct hns_roce_qp *qp;
+
+ qp = hns_roce_qp_lookup(hr_dev, qpn);
+ if (!qp)
+ return;
+
+ qp->state = IB_QPS_ERR;
+ flush_cqe(hr_dev, qp);
+
+ if (refcount_dec_and_test(&qp->refcount))
complete(&qp->free);
}
-EXPORT_SYMBOL_GPL(hns_roce_qp_event);
static void hns_roce_ib_qp_event(struct hns_roce_qp *hr_qp,
enum hns_roce_event type)
{
- struct ib_event event;
struct ib_qp *ibqp = &hr_qp->ibqp;
+ struct ib_event event;
if (ibqp->event_handler) {
event.device = ibqp->device;
@@ -100,6 +179,8 @@ static void hns_roce_ib_qp_event(struct hns_roce_qp *hr_qp,
event.event = IB_EVENT_QP_REQ_ERR;
break;
case HNS_ROCE_EVENT_TYPE_LOCAL_WQ_ACCESS_ERROR:
+ case HNS_ROCE_EVENT_TYPE_XRCD_VIOLATION:
+ case HNS_ROCE_EVENT_TYPE_INVALID_XRCETH:
event.event = IB_EVENT_QP_ACCESS_ERR;
break;
default:
@@ -111,91 +192,156 @@ static void hns_roce_ib_qp_event(struct hns_roce_qp *hr_qp,
}
}
-static int hns_roce_reserve_range_qp(struct hns_roce_dev *hr_dev, int cnt,
- int align, unsigned long *base)
+static u8 get_affinity_cq_bank(u8 qp_bank)
{
- struct hns_roce_qp_table *qp_table = &hr_dev->qp_table;
+ return (qp_bank >> 1) & CQ_BANKID_MASK;
+}
- return hns_roce_bitmap_alloc_range(&qp_table->bitmap, cnt, align,
- base) ?
- -ENOMEM :
- 0;
-}
-
-enum hns_roce_qp_state to_hns_roce_state(enum ib_qp_state state)
-{
- switch (state) {
- case IB_QPS_RESET:
- return HNS_ROCE_QP_STATE_RST;
- case IB_QPS_INIT:
- return HNS_ROCE_QP_STATE_INIT;
- case IB_QPS_RTR:
- return HNS_ROCE_QP_STATE_RTR;
- case IB_QPS_RTS:
- return HNS_ROCE_QP_STATE_RTS;
- case IB_QPS_SQD:
- return HNS_ROCE_QP_STATE_SQD;
- case IB_QPS_ERR:
- return HNS_ROCE_QP_STATE_ERR;
- default:
- return HNS_ROCE_QP_NUM_STATE;
+static u8 get_least_load_bankid_for_qp(struct ib_qp_init_attr *init_attr,
+ struct hns_roce_bank *bank)
+{
+#define INVALID_LOAD_QPNUM 0xFFFFFFFF
+ struct ib_cq *scq = init_attr->send_cq;
+ u32 least_load = INVALID_LOAD_QPNUM;
+ unsigned long cqn = 0;
+ u8 bankid = 0;
+ u32 bankcnt;
+ u8 i;
+
+ if (scq)
+ cqn = to_hr_cq(scq)->cqn;
+
+ for (i = 0; i < HNS_ROCE_QP_BANK_NUM; i++) {
+ if (scq && (get_affinity_cq_bank(i) != (cqn & CQ_BANKID_MASK)))
+ continue;
+
+ bankcnt = bank[i].inuse;
+ if (bankcnt < least_load) {
+ least_load = bankcnt;
+ bankid = i;
+ }
}
+
+ return bankid;
}
-EXPORT_SYMBOL_GPL(to_hns_roce_state);
-static int hns_roce_gsi_qp_alloc(struct hns_roce_dev *hr_dev, unsigned long qpn,
- struct hns_roce_qp *hr_qp)
+static int alloc_qpn_with_bankid(struct hns_roce_bank *bank, u8 bankid,
+ unsigned long *qpn)
+{
+ int id;
+
+ id = ida_alloc_range(&bank->ida, bank->next, bank->max, GFP_KERNEL);
+ if (id < 0) {
+ id = ida_alloc_range(&bank->ida, bank->min, bank->max,
+ GFP_KERNEL);
+ if (id < 0)
+ return id;
+ }
+
+ /* the QPN should keep increasing until the max value is reached. */
+ bank->next = (id + 1) > bank->max ? bank->min : id + 1;
+
+ /* the lower 3 bits is bankid */
+ *qpn = (id << 3) | bankid;
+
+ return 0;
+}
+static int alloc_qpn(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp,
+ struct ib_qp_init_attr *init_attr)
{
struct hns_roce_qp_table *qp_table = &hr_dev->qp_table;
+ unsigned long num = 0;
+ u8 bankid;
int ret;
- if (!qpn)
- return -EINVAL;
+ if (hr_qp->ibqp.qp_type == IB_QPT_GSI) {
+ num = 1;
+ } else {
+ mutex_lock(&qp_table->bank_mutex);
+ bankid = get_least_load_bankid_for_qp(init_attr, qp_table->bank);
- hr_qp->qpn = qpn;
+ ret = alloc_qpn_with_bankid(&qp_table->bank[bankid], bankid,
+ &num);
+ if (ret) {
+ ibdev_err(&hr_dev->ib_dev,
+ "failed to alloc QPN, ret = %d\n", ret);
+ mutex_unlock(&qp_table->bank_mutex);
+ return ret;
+ }
- spin_lock_irq(&qp_table->lock);
- ret = radix_tree_insert(&hr_dev->qp_table_tree,
- hr_qp->qpn & (hr_dev->caps.num_qps - 1), hr_qp);
- spin_unlock_irq(&qp_table->lock);
- if (ret) {
- dev_err(hr_dev->dev, "QPC radix_tree_insert failed\n");
- goto err_put_irrl;
+ qp_table->bank[bankid].inuse++;
+ mutex_unlock(&qp_table->bank_mutex);
}
- atomic_set(&hr_qp->refcount, 1);
- init_completion(&hr_qp->free);
+ hr_qp->qpn = num;
return 0;
+}
-err_put_irrl:
+static void add_qp_to_list(struct hns_roce_dev *hr_dev,
+ struct hns_roce_qp *hr_qp,
+ struct ib_cq *send_cq, struct ib_cq *recv_cq)
+{
+ struct hns_roce_cq *hr_send_cq, *hr_recv_cq;
+ unsigned long flags;
+
+ hr_send_cq = send_cq ? to_hr_cq(send_cq) : NULL;
+ hr_recv_cq = recv_cq ? to_hr_cq(recv_cq) : NULL;
+
+ spin_lock_irqsave(&hr_dev->qp_list_lock, flags);
+ hns_roce_lock_cqs(hr_send_cq, hr_recv_cq);
+
+ list_add_tail(&hr_qp->node, &hr_dev->qp_list);
+ if (hr_send_cq)
+ list_add_tail(&hr_qp->sq_node, &hr_send_cq->sq_list);
+ if (hr_recv_cq)
+ list_add_tail(&hr_qp->rq_node, &hr_recv_cq->rq_list);
+
+ hns_roce_unlock_cqs(hr_send_cq, hr_recv_cq);
+ spin_unlock_irqrestore(&hr_dev->qp_list_lock, flags);
+}
+
+static int hns_roce_qp_store(struct hns_roce_dev *hr_dev,
+ struct hns_roce_qp *hr_qp,
+ struct ib_qp_init_attr *init_attr)
+{
+ struct xarray *xa = &hr_dev->qp_table_xa;
+ int ret;
+
+ if (!hr_qp->qpn)
+ return -EINVAL;
+
+ ret = xa_err(xa_store_irq(xa, hr_qp->qpn, hr_qp, GFP_KERNEL));
+ if (ret)
+ dev_err(hr_dev->dev, "failed to xa store for QPC\n");
+ else
+ /* add QP to device's QP list for softwc */
+ add_qp_to_list(hr_dev, hr_qp, init_attr->send_cq,
+ init_attr->recv_cq);
return ret;
}
-static int hns_roce_qp_alloc(struct hns_roce_dev *hr_dev, unsigned long qpn,
- struct hns_roce_qp *hr_qp)
+static int alloc_qpc(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp)
{
struct hns_roce_qp_table *qp_table = &hr_dev->qp_table;
struct device *dev = hr_dev->dev;
int ret;
- if (!qpn)
+ if (!hr_qp->qpn)
return -EINVAL;
- hr_qp->qpn = qpn;
-
/* Alloc memory for QPC */
ret = hns_roce_table_get(hr_dev, &qp_table->qp_table, hr_qp->qpn);
if (ret) {
- dev_err(dev, "QPC table get failed\n");
+ dev_err(dev, "failed to get QPC table\n");
goto err_out;
}
/* Alloc memory for IRRL */
ret = hns_roce_table_get(hr_dev, &qp_table->irrl_table, hr_qp->qpn);
if (ret) {
- dev_err(dev, "IRRL table get failed\n");
+ dev_err(dev, "failed to get IRRL table\n");
goto err_put_qp;
}
@@ -204,23 +350,21 @@ static int hns_roce_qp_alloc(struct hns_roce_dev *hr_dev, unsigned long qpn,
ret = hns_roce_table_get(hr_dev, &qp_table->trrl_table,
hr_qp->qpn);
if (ret) {
- dev_err(dev, "TRRL table get failed\n");
+ dev_err(dev, "failed to get TRRL table\n");
goto err_put_irrl;
}
}
- spin_lock_irq(&qp_table->lock);
- ret = radix_tree_insert(&hr_dev->qp_table_tree,
- hr_qp->qpn & (hr_dev->caps.num_qps - 1), hr_qp);
- spin_unlock_irq(&qp_table->lock);
- if (ret) {
- dev_err(dev, "QPC radix_tree_insert failed\n");
- goto err_put_trrl;
+ if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_QP_FLOW_CTRL) {
+ /* Alloc memory for SCC CTX */
+ ret = hns_roce_table_get(hr_dev, &qp_table->sccc_table,
+ hr_qp->qpn);
+ if (ret) {
+ dev_err(dev, "failed to get SCC CTX table\n");
+ goto err_put_trrl;
+ }
}
- atomic_set(&hr_qp->refcount, 1);
- init_completion(&hr_qp->free);
-
return 0;
err_put_trrl:
@@ -237,62 +381,92 @@ err_out:
return ret;
}
+static void qp_user_mmap_entry_remove(struct hns_roce_qp *hr_qp)
+{
+ rdma_user_mmap_entry_remove(&hr_qp->dwqe_mmap_entry->rdma_entry);
+}
+
void hns_roce_qp_remove(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp)
{
- struct hns_roce_qp_table *qp_table = &hr_dev->qp_table;
+ struct xarray *xa = &hr_dev->qp_table_xa;
unsigned long flags;
- spin_lock_irqsave(&qp_table->lock, flags);
- radix_tree_delete(&hr_dev->qp_table_tree,
- hr_qp->qpn & (hr_dev->caps.num_qps - 1));
- spin_unlock_irqrestore(&qp_table->lock, flags);
+ list_del(&hr_qp->node);
+
+ if (hr_qp->ibqp.qp_type != IB_QPT_XRC_TGT)
+ list_del(&hr_qp->sq_node);
+
+ if (hr_qp->ibqp.qp_type != IB_QPT_XRC_INI &&
+ hr_qp->ibqp.qp_type != IB_QPT_XRC_TGT)
+ list_del(&hr_qp->rq_node);
+
+ xa_lock_irqsave(xa, flags);
+ __xa_erase(xa, hr_qp->qpn);
+ xa_unlock_irqrestore(xa, flags);
}
-EXPORT_SYMBOL_GPL(hns_roce_qp_remove);
-void hns_roce_qp_free(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp)
+static void free_qpc(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp)
{
struct hns_roce_qp_table *qp_table = &hr_dev->qp_table;
- if (atomic_dec_and_test(&hr_qp->refcount))
- complete(&hr_qp->free);
- wait_for_completion(&hr_qp->free);
+ if (hr_dev->caps.trrl_entry_sz)
+ hns_roce_table_put(hr_dev, &qp_table->trrl_table, hr_qp->qpn);
+ hns_roce_table_put(hr_dev, &qp_table->irrl_table, hr_qp->qpn);
+}
- if ((hr_qp->ibqp.qp_type) != IB_QPT_GSI) {
- if (hr_dev->caps.trrl_entry_sz)
- hns_roce_table_put(hr_dev, &qp_table->trrl_table,
- hr_qp->qpn);
- hns_roce_table_put(hr_dev, &qp_table->irrl_table, hr_qp->qpn);
- hns_roce_table_put(hr_dev, &qp_table->qp_table, hr_qp->qpn);
- }
+static inline u8 get_qp_bankid(unsigned long qpn)
+{
+ /* The lower 3 bits of QPN are used to hash to different banks */
+ return (u8)(qpn & GENMASK(2, 0));
}
-EXPORT_SYMBOL_GPL(hns_roce_qp_free);
-void hns_roce_release_range_qp(struct hns_roce_dev *hr_dev, int base_qpn,
- int cnt)
+static void free_qpn(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp)
{
- struct hns_roce_qp_table *qp_table = &hr_dev->qp_table;
+ u8 bankid;
+
+ if (hr_qp->ibqp.qp_type == IB_QPT_GSI)
+ return;
- if (base_qpn < SQP_NUM)
+ if (hr_qp->qpn < hr_dev->caps.reserved_qps)
return;
- hns_roce_bitmap_free_range(&qp_table->bitmap, base_qpn, cnt, BITMAP_RR);
+ bankid = get_qp_bankid(hr_qp->qpn);
+
+ ida_free(&hr_dev->qp_table.bank[bankid].ida,
+ hr_qp->qpn / HNS_ROCE_QP_BANK_NUM);
+
+ mutex_lock(&hr_dev->qp_table.bank_mutex);
+ hr_dev->qp_table.bank[bankid].inuse--;
+ mutex_unlock(&hr_dev->qp_table.bank_mutex);
}
-EXPORT_SYMBOL_GPL(hns_roce_release_range_qp);
-static int hns_roce_set_rq_size(struct hns_roce_dev *hr_dev,
- struct ib_qp_cap *cap, bool is_user, int has_rq,
- struct hns_roce_qp *hr_qp)
+static u32 proc_rq_sge(struct hns_roce_dev *dev, struct hns_roce_qp *hr_qp,
+ bool user)
{
- struct device *dev = hr_dev->dev;
- u32 max_cnt;
+ u32 max_sge = dev->caps.max_rq_sg;
+
+ if (dev->pci_dev->revision >= PCI_REVISION_ID_HIP09)
+ return max_sge;
+
+ /* Reserve SGEs only for HIP08 in kernel; The userspace driver will
+ * calculate number of max_sge with reserved SGEs when allocating wqe
+ * buf, so there is no need to do this again in kernel. But the number
+ * may exceed the capacity of SGEs recorded in the firmware, so the
+ * kernel driver should just adapt the value accordingly.
+ */
+ if (user)
+ max_sge = roundup_pow_of_two(max_sge + 1);
+ else
+ hr_qp->rq.rsv_sge = 1;
- /* Check the validity of QP support capacity */
- if (cap->max_recv_wr > hr_dev->caps.max_wqes ||
- cap->max_recv_sge > hr_dev->caps.max_rq_sg) {
- dev_err(dev, "RQ WR or sge error!max_recv_wr=%d max_recv_sge=%d\n",
- cap->max_recv_wr, cap->max_recv_sge);
- return -EINVAL;
- }
+ return max_sge;
+}
+
+static int set_rq_size(struct hns_roce_dev *hr_dev, struct ib_qp_cap *cap,
+ struct hns_roce_qp *hr_qp, int has_rq, bool user)
+{
+ u32 max_sge = proc_rq_sge(hr_dev, hr_qp, user);
+ u32 cnt;
/* If srq exist, set zero for relative number of rq */
if (!has_rq) {
@@ -300,224 +474,281 @@ static int hns_roce_set_rq_size(struct hns_roce_dev *hr_dev,
hr_qp->rq.max_gs = 0;
cap->max_recv_wr = 0;
cap->max_recv_sge = 0;
- } else {
- if (is_user && (!cap->max_recv_wr || !cap->max_recv_sge)) {
- dev_err(dev, "user space no need config max_recv_wr max_recv_sge\n");
- return -EINVAL;
- }
-
- if (hr_dev->caps.min_wqes)
- max_cnt = max(cap->max_recv_wr, hr_dev->caps.min_wqes);
- else
- max_cnt = cap->max_recv_wr;
- hr_qp->rq.wqe_cnt = roundup_pow_of_two(max_cnt);
+ return 0;
+ }
- if ((u32)hr_qp->rq.wqe_cnt > hr_dev->caps.max_wqes) {
- dev_err(dev, "while setting rq size, rq.wqe_cnt too large\n");
- return -EINVAL;
- }
+ /* Check the validity of QP support capacity */
+ if (!cap->max_recv_wr || cap->max_recv_wr > hr_dev->caps.max_wqes ||
+ cap->max_recv_sge > max_sge) {
+ ibdev_err(&hr_dev->ib_dev,
+ "RQ config error, depth = %u, sge = %u\n",
+ cap->max_recv_wr, cap->max_recv_sge);
+ return -EINVAL;
+ }
- max_cnt = max(1U, cap->max_recv_sge);
- hr_qp->rq.max_gs = roundup_pow_of_two(max_cnt);
- if (hr_dev->caps.max_rq_sg <= 2)
- hr_qp->rq.wqe_shift =
- ilog2(hr_dev->caps.max_rq_desc_sz);
- else
- hr_qp->rq.wqe_shift =
- ilog2(hr_dev->caps.max_rq_desc_sz
- * hr_qp->rq.max_gs);
+ cnt = roundup_pow_of_two(max(cap->max_recv_wr, hr_dev->caps.min_wqes));
+ if (cnt > hr_dev->caps.max_wqes) {
+ ibdev_err(&hr_dev->ib_dev, "rq depth %u too large\n",
+ cap->max_recv_wr);
+ return -EINVAL;
}
- cap->max_recv_wr = hr_qp->rq.max_post = hr_qp->rq.wqe_cnt;
- cap->max_recv_sge = hr_qp->rq.max_gs;
+ hr_qp->rq.max_gs = roundup_pow_of_two(max(1U, cap->max_recv_sge) +
+ hr_qp->rq.rsv_sge);
+
+ hr_qp->rq.wqe_shift = ilog2(hr_dev->caps.max_rq_desc_sz *
+ hr_qp->rq.max_gs);
+
+ hr_qp->rq.wqe_cnt = cnt;
+
+ cap->max_recv_wr = cnt;
+ cap->max_recv_sge = hr_qp->rq.max_gs - hr_qp->rq.rsv_sge;
return 0;
}
-static int hns_roce_set_user_sq_size(struct hns_roce_dev *hr_dev,
- struct ib_qp_cap *cap,
- struct hns_roce_qp *hr_qp,
- struct hns_roce_ib_create_qp *ucmd)
+static u32 get_max_inline_data(struct hns_roce_dev *hr_dev,
+ struct ib_qp_cap *cap)
+{
+ if (cap->max_inline_data) {
+ cap->max_inline_data = roundup_pow_of_two(cap->max_inline_data);
+ return min(cap->max_inline_data,
+ hr_dev->caps.max_sq_inline);
+ }
+
+ return 0;
+}
+
+static void update_inline_data(struct hns_roce_qp *hr_qp,
+ struct ib_qp_cap *cap)
+{
+ u32 sge_num = hr_qp->sq.ext_sge_cnt;
+
+ if (hr_qp->config & HNS_ROCE_EXSGE_FLAGS) {
+ if (!(hr_qp->ibqp.qp_type == IB_QPT_GSI ||
+ hr_qp->ibqp.qp_type == IB_QPT_UD))
+ sge_num = max((u32)HNS_ROCE_SGE_IN_WQE, sge_num);
+
+ cap->max_inline_data = max(cap->max_inline_data,
+ sge_num * HNS_ROCE_SGE_SIZE);
+ }
+
+ hr_qp->max_inline_data = cap->max_inline_data;
+}
+
+static u32 get_sge_num_from_max_send_sge(bool is_ud_or_gsi,
+ u32 max_send_sge)
+{
+ unsigned int std_sge_num;
+ unsigned int min_sge;
+
+ std_sge_num = is_ud_or_gsi ? 0 : HNS_ROCE_SGE_IN_WQE;
+ min_sge = is_ud_or_gsi ? 1 : 0;
+ return max_send_sge > std_sge_num ? (max_send_sge - std_sge_num) :
+ min_sge;
+}
+
+static unsigned int get_sge_num_from_max_inl_data(bool is_ud_or_gsi,
+ u32 max_inline_data)
+{
+ unsigned int inline_sge;
+
+ if (!max_inline_data)
+ return 0;
+
+ /*
+ * if max_inline_data less than
+ * HNS_ROCE_SGE_IN_WQE * HNS_ROCE_SGE_SIZE,
+ * In addition to ud's mode, no need to extend sge.
+ */
+ inline_sge = roundup_pow_of_two(max_inline_data) / HNS_ROCE_SGE_SIZE;
+ if (!is_ud_or_gsi && inline_sge <= HNS_ROCE_SGE_IN_WQE)
+ inline_sge = 0;
+
+ return inline_sge;
+}
+
+static void set_ext_sge_param(struct hns_roce_dev *hr_dev, u32 sq_wqe_cnt,
+ struct hns_roce_qp *hr_qp, struct ib_qp_cap *cap)
+{
+ bool is_ud_or_gsi = (hr_qp->ibqp.qp_type == IB_QPT_GSI ||
+ hr_qp->ibqp.qp_type == IB_QPT_UD);
+ unsigned int std_sge_num;
+ u32 inline_ext_sge = 0;
+ u32 ext_wqe_sge_cnt;
+ u32 total_sge_cnt;
+
+ cap->max_inline_data = get_max_inline_data(hr_dev, cap);
+
+ hr_qp->sge.sge_shift = HNS_ROCE_SGE_SHIFT;
+ std_sge_num = is_ud_or_gsi ? 0 : HNS_ROCE_SGE_IN_WQE;
+ ext_wqe_sge_cnt = get_sge_num_from_max_send_sge(is_ud_or_gsi,
+ cap->max_send_sge);
+
+ if (hr_qp->config & HNS_ROCE_EXSGE_FLAGS) {
+ inline_ext_sge = max(ext_wqe_sge_cnt,
+ get_sge_num_from_max_inl_data(is_ud_or_gsi,
+ cap->max_inline_data));
+ hr_qp->sq.ext_sge_cnt = inline_ext_sge ?
+ roundup_pow_of_two(inline_ext_sge) : 0;
+
+ hr_qp->sq.max_gs = max(1U, (hr_qp->sq.ext_sge_cnt + std_sge_num));
+ hr_qp->sq.max_gs = min(hr_qp->sq.max_gs, hr_dev->caps.max_sq_sg);
+
+ ext_wqe_sge_cnt = hr_qp->sq.ext_sge_cnt;
+ } else {
+ hr_qp->sq.max_gs = max(1U, cap->max_send_sge);
+ hr_qp->sq.max_gs = min(hr_qp->sq.max_gs, hr_dev->caps.max_sq_sg);
+ hr_qp->sq.ext_sge_cnt = hr_qp->sq.max_gs;
+ }
+
+ /* If the number of extended sge is not zero, they MUST use the
+ * space of HNS_HW_PAGE_SIZE at least.
+ */
+ if (ext_wqe_sge_cnt) {
+ total_sge_cnt = roundup_pow_of_two(sq_wqe_cnt * ext_wqe_sge_cnt);
+ hr_qp->sge.sge_cnt = max(total_sge_cnt,
+ (u32)HNS_HW_PAGE_SIZE / HNS_ROCE_SGE_SIZE);
+ }
+
+ update_inline_data(hr_qp, cap);
+}
+
+static int check_sq_size_with_integrity(struct hns_roce_dev *hr_dev,
+ struct ib_qp_cap *cap,
+ struct hns_roce_ib_create_qp *ucmd)
{
u32 roundup_sq_stride = roundup_pow_of_two(hr_dev->caps.max_sq_desc_sz);
u8 max_sq_stride = ilog2(roundup_sq_stride);
- u32 ex_sge_num;
- u32 page_size;
- u32 max_cnt;
/* Sanity check SQ size before proceeding */
- if ((u32)(1 << ucmd->log_sq_bb_count) > hr_dev->caps.max_wqes ||
- ucmd->log_sq_stride > max_sq_stride ||
- ucmd->log_sq_stride < HNS_ROCE_IB_MIN_SQ_STRIDE) {
- dev_err(hr_dev->dev, "check SQ size error!\n");
+ if (ucmd->log_sq_stride > max_sq_stride ||
+ ucmd->log_sq_stride < HNS_ROCE_IB_MIN_SQ_STRIDE) {
+ ibdev_err(&hr_dev->ib_dev, "failed to check SQ stride size.\n");
return -EINVAL;
}
if (cap->max_send_sge > hr_dev->caps.max_sq_sg) {
- dev_err(hr_dev->dev, "SQ sge error! max_send_sge=%d\n",
- cap->max_send_sge);
+ ibdev_err(&hr_dev->ib_dev, "failed to check SQ SGE size %u.\n",
+ cap->max_send_sge);
return -EINVAL;
}
- hr_qp->sq.wqe_cnt = 1 << ucmd->log_sq_bb_count;
- hr_qp->sq.wqe_shift = ucmd->log_sq_stride;
+ return 0;
+}
- max_cnt = max(1U, cap->max_send_sge);
- if (hr_dev->caps.max_sq_sg <= 2)
- hr_qp->sq.max_gs = roundup_pow_of_two(max_cnt);
- else
- hr_qp->sq.max_gs = max_cnt;
+static int set_user_sq_size(struct hns_roce_dev *hr_dev,
+ struct ib_qp_cap *cap, struct hns_roce_qp *hr_qp,
+ struct hns_roce_ib_create_qp *ucmd)
+{
+ struct ib_device *ibdev = &hr_dev->ib_dev;
+ u32 cnt = 0;
+ int ret;
- if (hr_qp->sq.max_gs > 2)
- hr_qp->sge.sge_cnt = roundup_pow_of_two(hr_qp->sq.wqe_cnt *
- (hr_qp->sq.max_gs - 2));
+ if (check_shl_overflow(1, ucmd->log_sq_bb_count, &cnt) ||
+ cnt > hr_dev->caps.max_wqes)
+ return -EINVAL;
- if ((hr_qp->sq.max_gs > 2) && (hr_dev->pci_dev->revision == 0x20)) {
- if (hr_qp->sge.sge_cnt > hr_dev->caps.max_extend_sg) {
- dev_err(hr_dev->dev,
- "The extended sge cnt error! sge_cnt=%d\n",
- hr_qp->sge.sge_cnt);
- return -EINVAL;
- }
+ ret = check_sq_size_with_integrity(hr_dev, cap, ucmd);
+ if (ret) {
+ ibdev_err(ibdev, "failed to check user SQ size, ret = %d.\n",
+ ret);
+ return ret;
}
- hr_qp->sge.sge_shift = 4;
- ex_sge_num = hr_qp->sge.sge_cnt;
-
- /* Get buf size, SQ and RQ are aligned to page_szie */
- if (hr_dev->caps.max_sq_sg <= 2) {
- hr_qp->buff_size = HNS_ROCE_ALOGN_UP((hr_qp->rq.wqe_cnt <<
- hr_qp->rq.wqe_shift), PAGE_SIZE) +
- HNS_ROCE_ALOGN_UP((hr_qp->sq.wqe_cnt <<
- hr_qp->sq.wqe_shift), PAGE_SIZE);
+ set_ext_sge_param(hr_dev, cnt, hr_qp, cap);
- hr_qp->sq.offset = 0;
- hr_qp->rq.offset = HNS_ROCE_ALOGN_UP((hr_qp->sq.wqe_cnt <<
- hr_qp->sq.wqe_shift), PAGE_SIZE);
- } else {
- page_size = 1 << (hr_dev->caps.mtt_buf_pg_sz + PAGE_SHIFT);
- hr_qp->sge.sge_cnt =
- max(page_size / (1 << hr_qp->sge.sge_shift), ex_sge_num);
- hr_qp->buff_size = HNS_ROCE_ALOGN_UP((hr_qp->rq.wqe_cnt <<
- hr_qp->rq.wqe_shift), page_size) +
- HNS_ROCE_ALOGN_UP((hr_qp->sge.sge_cnt <<
- hr_qp->sge.sge_shift), page_size) +
- HNS_ROCE_ALOGN_UP((hr_qp->sq.wqe_cnt <<
- hr_qp->sq.wqe_shift), page_size);
-
- hr_qp->sq.offset = 0;
- if (ex_sge_num) {
- hr_qp->sge.offset = HNS_ROCE_ALOGN_UP(
- (hr_qp->sq.wqe_cnt <<
- hr_qp->sq.wqe_shift),
- page_size);
- hr_qp->rq.offset = hr_qp->sge.offset +
- HNS_ROCE_ALOGN_UP((hr_qp->sge.sge_cnt <<
- hr_qp->sge.sge_shift),
- page_size);
- } else {
- hr_qp->rq.offset = HNS_ROCE_ALOGN_UP(
- (hr_qp->sq.wqe_cnt <<
- hr_qp->sq.wqe_shift),
- page_size);
- }
- }
+ hr_qp->sq.wqe_shift = ucmd->log_sq_stride;
+ hr_qp->sq.wqe_cnt = cnt;
return 0;
}
-static int hns_roce_set_kernel_sq_size(struct hns_roce_dev *hr_dev,
- struct ib_qp_cap *cap,
- struct hns_roce_qp *hr_qp)
+static int set_wqe_buf_attr(struct hns_roce_dev *hr_dev,
+ struct hns_roce_qp *hr_qp,
+ struct hns_roce_buf_attr *buf_attr)
{
- struct device *dev = hr_dev->dev;
- u32 page_size;
- u32 max_cnt;
- int size;
-
- if (cap->max_send_wr > hr_dev->caps.max_wqes ||
- cap->max_send_sge > hr_dev->caps.max_sq_sg ||
- cap->max_inline_data > hr_dev->caps.max_sq_inline) {
- dev_err(dev, "SQ WR or sge or inline data error!\n");
- return -EINVAL;
+ int buf_size;
+ int idx = 0;
+
+ hr_qp->buff_size = 0;
+
+ /* SQ WQE */
+ hr_qp->sq.offset = 0;
+ buf_size = to_hr_hem_entries_size(hr_qp->sq.wqe_cnt,
+ hr_qp->sq.wqe_shift);
+ if (buf_size > 0 && idx < ARRAY_SIZE(buf_attr->region)) {
+ buf_attr->region[idx].size = buf_size;
+ buf_attr->region[idx].hopnum = hr_dev->caps.wqe_sq_hop_num;
+ idx++;
+ hr_qp->buff_size += buf_size;
}
- hr_qp->sq.wqe_shift = ilog2(hr_dev->caps.max_sq_desc_sz);
- hr_qp->sq_max_wqes_per_wr = 1;
- hr_qp->sq_spare_wqes = 0;
+ /* extend SGE WQE in SQ */
+ hr_qp->sge.offset = hr_qp->buff_size;
+ buf_size = to_hr_hem_entries_size(hr_qp->sge.sge_cnt,
+ hr_qp->sge.sge_shift);
+ if (buf_size > 0 && idx < ARRAY_SIZE(buf_attr->region)) {
+ buf_attr->region[idx].size = buf_size;
+ buf_attr->region[idx].hopnum = hr_dev->caps.wqe_sge_hop_num;
+ idx++;
+ hr_qp->buff_size += buf_size;
+ }
- if (hr_dev->caps.min_wqes)
- max_cnt = max(cap->max_send_wr, hr_dev->caps.min_wqes);
- else
- max_cnt = cap->max_send_wr;
+ /* RQ WQE */
+ hr_qp->rq.offset = hr_qp->buff_size;
+ buf_size = to_hr_hem_entries_size(hr_qp->rq.wqe_cnt,
+ hr_qp->rq.wqe_shift);
+ if (buf_size > 0 && idx < ARRAY_SIZE(buf_attr->region)) {
+ buf_attr->region[idx].size = buf_size;
+ buf_attr->region[idx].hopnum = hr_dev->caps.wqe_rq_hop_num;
+ idx++;
+ hr_qp->buff_size += buf_size;
+ }
- hr_qp->sq.wqe_cnt = roundup_pow_of_two(max_cnt);
- if ((u32)hr_qp->sq.wqe_cnt > hr_dev->caps.max_wqes) {
- dev_err(dev, "while setting kernel sq size, sq.wqe_cnt too large\n");
+ if (hr_qp->buff_size < 1)
return -EINVAL;
- }
- /* Get data_seg numbers */
- max_cnt = max(1U, cap->max_send_sge);
- if (hr_dev->caps.max_sq_sg <= 2)
- hr_qp->sq.max_gs = roundup_pow_of_two(max_cnt);
- else
- hr_qp->sq.max_gs = max_cnt;
+ buf_attr->page_shift = HNS_HW_PAGE_SHIFT + hr_dev->caps.mtt_buf_pg_sz;
+ buf_attr->region_count = idx;
- if (hr_qp->sq.max_gs > 2) {
- hr_qp->sge.sge_cnt = roundup_pow_of_two(hr_qp->sq.wqe_cnt *
- (hr_qp->sq.max_gs - 2));
- hr_qp->sge.sge_shift = 4;
- }
+ return 0;
+}
- /* ud sqwqe's sge use extend sge */
- if (hr_dev->caps.max_sq_sg > 2 && hr_qp->ibqp.qp_type == IB_QPT_GSI) {
- hr_qp->sge.sge_cnt = roundup_pow_of_two(hr_qp->sq.wqe_cnt *
- hr_qp->sq.max_gs);
- hr_qp->sge.sge_shift = 4;
- }
+static int set_kernel_sq_size(struct hns_roce_dev *hr_dev,
+ struct ib_qp_cap *cap, struct hns_roce_qp *hr_qp)
+{
+ struct ib_device *ibdev = &hr_dev->ib_dev;
+ u32 cnt;
- if ((hr_qp->sq.max_gs > 2) && hr_dev->pci_dev->revision == 0x20) {
- if (hr_qp->sge.sge_cnt > hr_dev->caps.max_extend_sg) {
- dev_err(dev, "The extended sge cnt error! sge_cnt=%d\n",
- hr_qp->sge.sge_cnt);
- return -EINVAL;
- }
+ if (!cap->max_send_wr || cap->max_send_wr > hr_dev->caps.max_wqes ||
+ cap->max_send_sge > hr_dev->caps.max_sq_sg) {
+ ibdev_err(ibdev, "failed to check SQ WR or SGE num.\n");
+ return -EINVAL;
}
- /* Get buf size, SQ and RQ are aligned to PAGE_SIZE */
- page_size = 1 << (hr_dev->caps.mtt_buf_pg_sz + PAGE_SHIFT);
- hr_qp->sq.offset = 0;
- size = HNS_ROCE_ALOGN_UP(hr_qp->sq.wqe_cnt << hr_qp->sq.wqe_shift,
- page_size);
-
- if (hr_dev->caps.max_sq_sg > 2 && hr_qp->sge.sge_cnt) {
- hr_qp->sge.sge_cnt = max(page_size/(1 << hr_qp->sge.sge_shift),
- (u32)hr_qp->sge.sge_cnt);
- hr_qp->sge.offset = size;
- size += HNS_ROCE_ALOGN_UP(hr_qp->sge.sge_cnt <<
- hr_qp->sge.sge_shift, page_size);
+ cnt = roundup_pow_of_two(max(cap->max_send_wr, hr_dev->caps.min_wqes));
+ if (cnt > hr_dev->caps.max_wqes) {
+ ibdev_err(ibdev, "failed to check WQE num, WQE num = %u.\n",
+ cnt);
+ return -EINVAL;
}
- hr_qp->rq.offset = size;
- size += HNS_ROCE_ALOGN_UP((hr_qp->rq.wqe_cnt << hr_qp->rq.wqe_shift),
- page_size);
- hr_qp->buff_size = size;
+ hr_qp->sq.wqe_shift = ilog2(hr_dev->caps.max_sq_desc_sz);
+ hr_qp->sq.wqe_cnt = cnt;
- /* Get wr and sge number which send */
- cap->max_send_wr = hr_qp->sq.max_post = hr_qp->sq.wqe_cnt;
- cap->max_send_sge = hr_qp->sq.max_gs;
+ set_ext_sge_param(hr_dev, cnt, hr_qp, cap);
- /* We don't support inline sends for kernel QPs (yet) */
- cap->max_inline_data = 0;
+ /* sync the parameters of kernel QP to user's configuration */
+ cap->max_send_wr = cnt;
return 0;
}
static int hns_roce_qp_has_sq(struct ib_qp_init_attr *attr)
{
- if (attr->qp_type == IB_QPT_XRC_TGT)
+ if (attr->qp_type == IB_QPT_XRC_TGT || !attr->cap.max_send_wr)
return 0;
return 1;
@@ -526,525 +757,725 @@ static int hns_roce_qp_has_sq(struct ib_qp_init_attr *attr)
static int hns_roce_qp_has_rq(struct ib_qp_init_attr *attr)
{
if (attr->qp_type == IB_QPT_XRC_INI ||
- attr->qp_type == IB_QPT_XRC_TGT || attr->srq)
+ attr->qp_type == IB_QPT_XRC_TGT || attr->srq ||
+ !attr->cap.max_recv_wr)
return 0;
return 1;
}
-static int hns_roce_create_qp_common(struct hns_roce_dev *hr_dev,
- struct ib_pd *ib_pd,
- struct ib_qp_init_attr *init_attr,
- struct ib_udata *udata, unsigned long sqpn,
- struct hns_roce_qp *hr_qp)
+static int alloc_qp_buf(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp,
+ struct ib_qp_init_attr *init_attr,
+ struct ib_udata *udata, unsigned long addr)
{
- struct device *dev = hr_dev->dev;
- struct hns_roce_ib_create_qp ucmd;
- struct hns_roce_ib_create_qp_resp resp = {};
- unsigned long qpn = 0;
- int ret = 0;
- u32 page_shift;
- u32 npages;
- int i;
+ struct ib_device *ibdev = &hr_dev->ib_dev;
+ struct hns_roce_buf_attr buf_attr = {};
+ int ret;
- mutex_init(&hr_qp->mutex);
- spin_lock_init(&hr_qp->sq.lock);
- spin_lock_init(&hr_qp->rq.lock);
+ ret = set_wqe_buf_attr(hr_dev, hr_qp, &buf_attr);
+ if (ret) {
+ ibdev_err(ibdev, "failed to split WQE buf, ret = %d.\n", ret);
+ goto err_inline;
+ }
+ ret = hns_roce_mtr_create(hr_dev, &hr_qp->mtr, &buf_attr,
+ PAGE_SHIFT + hr_dev->caps.mtt_ba_pg_sz,
+ udata, addr);
+ if (ret) {
+ ibdev_err(ibdev, "failed to create WQE mtr, ret = %d.\n", ret);
+ goto err_inline;
+ }
- hr_qp->state = IB_QPS_RESET;
+ if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_DIRECT_WQE)
+ hr_qp->en_flags |= HNS_ROCE_QP_CAP_DIRECT_WQE;
- hr_qp->ibqp.qp_type = init_attr->qp_type;
+ return 0;
- if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR)
- hr_qp->sq_signal_bits = cpu_to_le32(IB_SIGNAL_ALL_WR);
- else
- hr_qp->sq_signal_bits = cpu_to_le32(IB_SIGNAL_REQ_WR);
+err_inline:
- ret = hns_roce_set_rq_size(hr_dev, &init_attr->cap, udata,
- hns_roce_qp_has_rq(init_attr), hr_qp);
- if (ret) {
- dev_err(dev, "hns_roce_set_rq_size failed\n");
- goto err_out;
- }
+ return ret;
+}
- if ((hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RQ_INLINE) &&
- hns_roce_qp_has_rq(init_attr)) {
- /* allocate recv inline buf */
- hr_qp->rq_inl_buf.wqe_list = kcalloc(hr_qp->rq.wqe_cnt,
- sizeof(struct hns_roce_rinl_wqe),
- GFP_KERNEL);
- if (!hr_qp->rq_inl_buf.wqe_list) {
- ret = -ENOMEM;
- goto err_out;
- }
+static void free_qp_buf(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp)
+{
+ hns_roce_mtr_destroy(hr_dev, &hr_qp->mtr);
+}
- hr_qp->rq_inl_buf.wqe_cnt = hr_qp->rq.wqe_cnt;
+static inline bool user_qp_has_sdb(struct hns_roce_dev *hr_dev,
+ struct ib_qp_init_attr *init_attr,
+ struct ib_udata *udata,
+ struct hns_roce_ib_create_qp_resp *resp,
+ struct hns_roce_ib_create_qp *ucmd)
+{
+ return ((hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_QP_RECORD_DB) &&
+ udata->outlen >= offsetofend(typeof(*resp), cap_flags) &&
+ hns_roce_qp_has_sq(init_attr) &&
+ udata->inlen >= offsetofend(typeof(*ucmd), sdb_addr));
+}
- /* Firstly, allocate a list of sge space buffer */
- hr_qp->rq_inl_buf.wqe_list[0].sg_list =
- kcalloc(hr_qp->rq_inl_buf.wqe_cnt,
- init_attr->cap.max_recv_sge *
- sizeof(struct hns_roce_rinl_sge),
- GFP_KERNEL);
- if (!hr_qp->rq_inl_buf.wqe_list[0].sg_list) {
- ret = -ENOMEM;
- goto err_wqe_list;
- }
+static inline bool user_qp_has_rdb(struct hns_roce_dev *hr_dev,
+ struct ib_qp_init_attr *init_attr,
+ struct ib_udata *udata,
+ struct hns_roce_ib_create_qp_resp *resp)
+{
+ return ((hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_QP_RECORD_DB) &&
+ udata->outlen >= offsetofend(typeof(*resp), cap_flags) &&
+ hns_roce_qp_has_rq(init_attr));
+}
- for (i = 1; i < hr_qp->rq_inl_buf.wqe_cnt; i++)
- /* Secondly, reallocate the buffer */
- hr_qp->rq_inl_buf.wqe_list[i].sg_list =
- &hr_qp->rq_inl_buf.wqe_list[0].sg_list[i *
- init_attr->cap.max_recv_sge];
+static inline bool kernel_qp_has_rdb(struct hns_roce_dev *hr_dev,
+ struct ib_qp_init_attr *init_attr)
+{
+ return ((hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_QP_RECORD_DB) &&
+ hns_roce_qp_has_rq(init_attr));
+}
+
+static int qp_mmap_entry(struct hns_roce_qp *hr_qp,
+ struct hns_roce_dev *hr_dev,
+ struct ib_udata *udata,
+ struct hns_roce_ib_create_qp_resp *resp)
+{
+ struct hns_roce_ucontext *uctx =
+ rdma_udata_to_drv_context(udata,
+ struct hns_roce_ucontext, ibucontext);
+ struct rdma_user_mmap_entry *rdma_entry;
+ u64 address;
+
+ address = hr_dev->dwqe_page + hr_qp->qpn * HNS_ROCE_DWQE_SIZE;
+
+ hr_qp->dwqe_mmap_entry =
+ hns_roce_user_mmap_entry_insert(&uctx->ibucontext, address,
+ HNS_ROCE_DWQE_SIZE,
+ HNS_ROCE_MMAP_TYPE_DWQE);
+
+ if (!hr_qp->dwqe_mmap_entry) {
+ ibdev_err(&hr_dev->ib_dev, "failed to get dwqe mmap entry.\n");
+ return -ENOMEM;
}
- if (udata) {
- if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd))) {
- dev_err(dev, "ib_copy_from_udata error for create qp\n");
- ret = -EFAULT;
- goto err_rq_sge_list;
- }
+ rdma_entry = &hr_qp->dwqe_mmap_entry->rdma_entry;
+ resp->dwqe_mmap_key = rdma_user_mmap_get_offset(rdma_entry);
- ret = hns_roce_set_user_sq_size(hr_dev, &init_attr->cap, hr_qp,
- &ucmd);
- if (ret) {
- dev_err(dev, "hns_roce_set_user_sq_size error for create qp\n");
- goto err_rq_sge_list;
- }
+ return 0;
+}
- hr_qp->umem = ib_umem_get(ib_pd->uobject->context,
- ucmd.buf_addr, hr_qp->buff_size, 0,
- 0);
- if (IS_ERR(hr_qp->umem)) {
- dev_err(dev, "ib_umem_get error for create qp\n");
- ret = PTR_ERR(hr_qp->umem);
- goto err_rq_sge_list;
- }
+static int alloc_user_qp_db(struct hns_roce_dev *hr_dev,
+ struct hns_roce_qp *hr_qp,
+ struct ib_qp_init_attr *init_attr,
+ struct ib_udata *udata,
+ struct hns_roce_ib_create_qp *ucmd,
+ struct hns_roce_ib_create_qp_resp *resp)
+{
+ bool has_sdb = user_qp_has_sdb(hr_dev, init_attr, udata, resp, ucmd);
+ struct hns_roce_ucontext *uctx = rdma_udata_to_drv_context(udata,
+ struct hns_roce_ucontext, ibucontext);
+ bool has_rdb = user_qp_has_rdb(hr_dev, init_attr, udata, resp);
+ struct ib_device *ibdev = &hr_dev->ib_dev;
+ int ret;
- hr_qp->mtt.mtt_type = MTT_TYPE_WQE;
- if (hr_dev->caps.mtt_buf_pg_sz) {
- npages = (ib_umem_page_count(hr_qp->umem) +
- (1 << hr_dev->caps.mtt_buf_pg_sz) - 1) /
- (1 << hr_dev->caps.mtt_buf_pg_sz);
- page_shift = PAGE_SHIFT + hr_dev->caps.mtt_buf_pg_sz;
- ret = hns_roce_mtt_init(hr_dev, npages,
- page_shift,
- &hr_qp->mtt);
- } else {
- ret = hns_roce_mtt_init(hr_dev,
- ib_umem_page_count(hr_qp->umem),
- hr_qp->umem->page_shift,
- &hr_qp->mtt);
- }
+ if (has_sdb) {
+ ret = hns_roce_db_map_user(uctx, ucmd->sdb_addr, &hr_qp->sdb);
if (ret) {
- dev_err(dev, "hns_roce_mtt_init error for create qp\n");
- goto err_buf;
+ ibdev_err(ibdev,
+ "failed to map user SQ doorbell, ret = %d.\n",
+ ret);
+ goto err_out;
}
+ hr_qp->en_flags |= HNS_ROCE_QP_CAP_SQ_RECORD_DB;
+ }
- ret = hns_roce_ib_umem_write_mtt(hr_dev, &hr_qp->mtt,
- hr_qp->umem);
+ if (has_rdb) {
+ ret = hns_roce_db_map_user(uctx, ucmd->db_addr, &hr_qp->rdb);
if (ret) {
- dev_err(dev, "hns_roce_ib_umem_write_mtt error for create qp\n");
- goto err_mtt;
- }
-
- if ((hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_SQ_RECORD_DB) &&
- (udata->inlen >= sizeof(ucmd)) &&
- (udata->outlen >= sizeof(resp)) &&
- hns_roce_qp_has_sq(init_attr)) {
- ret = hns_roce_db_map_user(
- to_hr_ucontext(ib_pd->uobject->context),
- ucmd.sdb_addr, &hr_qp->sdb);
- if (ret) {
- dev_err(dev, "sq record doorbell map failed!\n");
- goto err_mtt;
- }
-
- /* indicate kernel supports sq record db */
- resp.cap_flags |= HNS_ROCE_SUPPORT_SQ_RECORD_DB;
- hr_qp->sdb_en = 1;
+ ibdev_err(ibdev,
+ "failed to map user RQ doorbell, ret = %d.\n",
+ ret);
+ goto err_sdb;
}
+ hr_qp->en_flags |= HNS_ROCE_QP_CAP_RQ_RECORD_DB;
+ }
- if ((hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) &&
- (udata->outlen >= sizeof(resp)) &&
- hns_roce_qp_has_rq(init_attr)) {
- ret = hns_roce_db_map_user(
- to_hr_ucontext(ib_pd->uobject->context),
- ucmd.db_addr, &hr_qp->rdb);
- if (ret) {
- dev_err(dev, "rq record doorbell map failed!\n");
- goto err_sq_dbmap;
- }
- }
- } else {
- if (init_attr->create_flags &
- IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK) {
- dev_err(dev, "init_attr->create_flags error!\n");
- ret = -EINVAL;
- goto err_rq_sge_list;
- }
+ return 0;
- if (init_attr->create_flags & IB_QP_CREATE_IPOIB_UD_LSO) {
- dev_err(dev, "init_attr->create_flags error!\n");
- ret = -EINVAL;
- goto err_rq_sge_list;
- }
+err_sdb:
+ if (has_sdb)
+ hns_roce_db_unmap_user(uctx, &hr_qp->sdb);
+err_out:
+ return ret;
+}
- /* Set SQ size */
- ret = hns_roce_set_kernel_sq_size(hr_dev, &init_attr->cap,
- hr_qp);
- if (ret) {
- dev_err(dev, "hns_roce_set_kernel_sq_size error!\n");
- goto err_rq_sge_list;
- }
+static int alloc_kernel_qp_db(struct hns_roce_dev *hr_dev,
+ struct hns_roce_qp *hr_qp,
+ struct ib_qp_init_attr *init_attr)
+{
+ struct ib_device *ibdev = &hr_dev->ib_dev;
+ int ret;
- /* QP doorbell register address */
- hr_qp->sq.db_reg_l = hr_dev->reg_base + hr_dev->sdb_offset +
- DB_REG_OFFSET * hr_dev->priv_uar.index;
- hr_qp->rq.db_reg_l = hr_dev->reg_base + hr_dev->odb_offset +
- DB_REG_OFFSET * hr_dev->priv_uar.index;
-
- if ((hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) &&
- hns_roce_qp_has_rq(init_attr)) {
- ret = hns_roce_alloc_db(hr_dev, &hr_qp->rdb, 0);
- if (ret) {
- dev_err(dev, "rq record doorbell alloc failed!\n");
- goto err_rq_sge_list;
- }
- *hr_qp->rdb.db_record = 0;
- hr_qp->rdb_en = 1;
- }
+ if (hr_dev->pci_dev->revision >= PCI_REVISION_ID_HIP09)
+ hr_qp->sq.db_reg = hr_dev->mem_base +
+ HNS_ROCE_DWQE_SIZE * hr_qp->qpn;
+ else
+ hr_qp->sq.db_reg = hr_dev->reg_base + hr_dev->sdb_offset +
+ DB_REG_OFFSET * hr_dev->priv_uar.index;
- /* Allocate QP buf */
- page_shift = PAGE_SHIFT + hr_dev->caps.mtt_buf_pg_sz;
- if (hns_roce_buf_alloc(hr_dev, hr_qp->buff_size,
- (1 << page_shift) * 2,
- &hr_qp->hr_buf, page_shift)) {
- dev_err(dev, "hns_roce_buf_alloc error!\n");
- ret = -ENOMEM;
- goto err_db;
- }
+ hr_qp->rq.db_reg = hr_dev->reg_base + hr_dev->odb_offset +
+ DB_REG_OFFSET * hr_dev->priv_uar.index;
- hr_qp->mtt.mtt_type = MTT_TYPE_WQE;
- /* Write MTT */
- ret = hns_roce_mtt_init(hr_dev, hr_qp->hr_buf.npages,
- hr_qp->hr_buf.page_shift, &hr_qp->mtt);
+ if (kernel_qp_has_rdb(hr_dev, init_attr)) {
+ ret = hns_roce_alloc_db(hr_dev, &hr_qp->rdb, 0);
if (ret) {
- dev_err(dev, "hns_roce_mtt_init error for kernel create qp\n");
- goto err_buf;
+ ibdev_err(ibdev,
+ "failed to alloc kernel RQ doorbell, ret = %d.\n",
+ ret);
+ return ret;
}
+ *hr_qp->rdb.db_record = 0;
+ hr_qp->en_flags |= HNS_ROCE_QP_CAP_RQ_RECORD_DB;
+ }
- ret = hns_roce_buf_write_mtt(hr_dev, &hr_qp->mtt,
- &hr_qp->hr_buf);
- if (ret) {
- dev_err(dev, "hns_roce_buf_write_mtt error for kernel create qp\n");
- goto err_mtt;
- }
+ return 0;
+}
- hr_qp->sq.wrid = kmalloc_array(hr_qp->sq.wqe_cnt, sizeof(u64),
- GFP_KERNEL);
- hr_qp->rq.wrid = kmalloc_array(hr_qp->rq.wqe_cnt, sizeof(u64),
- GFP_KERNEL);
- if (!hr_qp->sq.wrid || !hr_qp->rq.wrid) {
- ret = -ENOMEM;
- goto err_wrid;
+static int alloc_qp_db(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp,
+ struct ib_qp_init_attr *init_attr,
+ struct ib_udata *udata,
+ struct hns_roce_ib_create_qp *ucmd,
+ struct hns_roce_ib_create_qp_resp *resp)
+{
+ int ret;
+
+ if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_SDI_MODE)
+ hr_qp->en_flags |= HNS_ROCE_QP_CAP_OWNER_DB;
+
+ if (udata) {
+ if (hr_qp->en_flags & HNS_ROCE_QP_CAP_DIRECT_WQE) {
+ ret = qp_mmap_entry(hr_qp, hr_dev, udata, resp);
+ if (ret)
+ return ret;
}
- }
- if (sqpn) {
- qpn = sqpn;
+ ret = alloc_user_qp_db(hr_dev, hr_qp, init_attr, udata, ucmd,
+ resp);
+ if (ret)
+ goto err_remove_qp;
} else {
- /* Get QPN */
- ret = hns_roce_reserve_range_qp(hr_dev, 1, 1, &qpn);
- if (ret) {
- dev_err(dev, "hns_roce_reserve_range_qp alloc qpn error\n");
- goto err_wrid;
- }
+ ret = alloc_kernel_qp_db(hr_dev, hr_qp, init_attr);
+ if (ret)
+ return ret;
}
- if (init_attr->qp_type == IB_QPT_GSI &&
- hr_dev->hw_rev == HNS_ROCE_HW_VER1) {
- /* In v1 engine, GSI QP context in RoCE engine's register */
- ret = hns_roce_gsi_qp_alloc(hr_dev, qpn, hr_qp);
- if (ret) {
- dev_err(dev, "hns_roce_qp_alloc failed!\n");
- goto err_qpn;
- }
+ return 0;
+
+err_remove_qp:
+ if (hr_qp->en_flags & HNS_ROCE_QP_CAP_DIRECT_WQE)
+ qp_user_mmap_entry_remove(hr_qp);
+
+ return ret;
+}
+
+static void free_qp_db(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp,
+ struct ib_udata *udata)
+{
+ struct hns_roce_ucontext *uctx = rdma_udata_to_drv_context(
+ udata, struct hns_roce_ucontext, ibucontext);
+
+ if (udata) {
+ if (hr_qp->en_flags & HNS_ROCE_QP_CAP_RQ_RECORD_DB)
+ hns_roce_db_unmap_user(uctx, &hr_qp->rdb);
+ if (hr_qp->en_flags & HNS_ROCE_QP_CAP_SQ_RECORD_DB)
+ hns_roce_db_unmap_user(uctx, &hr_qp->sdb);
+ if (hr_qp->en_flags & HNS_ROCE_QP_CAP_DIRECT_WQE)
+ qp_user_mmap_entry_remove(hr_qp);
} else {
- ret = hns_roce_qp_alloc(hr_dev, qpn, hr_qp);
- if (ret) {
- dev_err(dev, "hns_roce_qp_alloc failed!\n");
- goto err_qpn;
- }
+ if (hr_qp->en_flags & HNS_ROCE_QP_CAP_RQ_RECORD_DB)
+ hns_roce_free_db(hr_dev, &hr_qp->rdb);
}
+}
- if (sqpn)
- hr_qp->doorbell_qpn = 1;
- else
- hr_qp->doorbell_qpn = cpu_to_le64(hr_qp->qpn);
-
- if (udata && (udata->outlen >= sizeof(resp)) &&
- (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB)) {
+static int alloc_kernel_wrid(struct hns_roce_dev *hr_dev,
+ struct hns_roce_qp *hr_qp)
+{
+ struct ib_device *ibdev = &hr_dev->ib_dev;
+ u64 *sq_wrid = NULL;
+ u64 *rq_wrid = NULL;
+ int ret;
- /* indicate kernel supports rq record db */
- resp.cap_flags |= HNS_ROCE_SUPPORT_RQ_RECORD_DB;
- ret = ib_copy_to_udata(udata, &resp, sizeof(resp));
- if (ret)
- goto err_qp;
+ sq_wrid = kcalloc(hr_qp->sq.wqe_cnt, sizeof(u64), GFP_KERNEL);
+ if (!sq_wrid) {
+ ibdev_err(ibdev, "failed to alloc SQ wrid.\n");
+ return -ENOMEM;
+ }
- hr_qp->rdb_en = 1;
+ if (hr_qp->rq.wqe_cnt) {
+ rq_wrid = kcalloc(hr_qp->rq.wqe_cnt, sizeof(u64), GFP_KERNEL);
+ if (!rq_wrid) {
+ ibdev_err(ibdev, "failed to alloc RQ wrid.\n");
+ ret = -ENOMEM;
+ goto err_sq;
+ }
}
- hr_qp->event = hns_roce_ib_qp_event;
+ hr_qp->sq.wrid = sq_wrid;
+ hr_qp->rq.wrid = rq_wrid;
return 0;
+err_sq:
+ kfree(sq_wrid);
-err_qp:
- if (init_attr->qp_type == IB_QPT_GSI &&
- hr_dev->hw_rev == HNS_ROCE_HW_VER1)
- hns_roce_qp_remove(hr_dev, hr_qp);
+ return ret;
+}
+
+static void free_kernel_wrid(struct hns_roce_qp *hr_qp)
+{
+ kfree(hr_qp->rq.wrid);
+ kfree(hr_qp->sq.wrid);
+}
+
+static void default_congest_type(struct hns_roce_dev *hr_dev,
+ struct hns_roce_qp *hr_qp)
+{
+ if (hr_qp->ibqp.qp_type == IB_QPT_UD ||
+ hr_qp->ibqp.qp_type == IB_QPT_GSI)
+ hr_qp->cong_type = CONG_TYPE_DCQCN;
else
- hns_roce_qp_free(hr_dev, hr_qp);
+ hr_qp->cong_type = hr_dev->caps.default_cong_type;
+}
-err_qpn:
- if (!sqpn)
- hns_roce_release_range_qp(hr_dev, qpn, 1);
+static int set_congest_type(struct hns_roce_qp *hr_qp,
+ struct hns_roce_ib_create_qp *ucmd)
+{
+ struct hns_roce_dev *hr_dev = to_hr_dev(hr_qp->ibqp.device);
-err_wrid:
- if (udata) {
- if ((hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) &&
- (udata->outlen >= sizeof(resp)) &&
- hns_roce_qp_has_rq(init_attr))
- hns_roce_db_unmap_user(
- to_hr_ucontext(ib_pd->uobject->context),
- &hr_qp->rdb);
- } else {
- kfree(hr_qp->sq.wrid);
- kfree(hr_qp->rq.wrid);
+ switch (ucmd->cong_type_flags) {
+ case HNS_ROCE_CREATE_QP_FLAGS_DCQCN:
+ hr_qp->cong_type = CONG_TYPE_DCQCN;
+ break;
+ case HNS_ROCE_CREATE_QP_FLAGS_LDCP:
+ hr_qp->cong_type = CONG_TYPE_LDCP;
+ break;
+ case HNS_ROCE_CREATE_QP_FLAGS_HC3:
+ hr_qp->cong_type = CONG_TYPE_HC3;
+ break;
+ case HNS_ROCE_CREATE_QP_FLAGS_DIP:
+ hr_qp->cong_type = CONG_TYPE_DIP;
+ break;
+ default:
+ return -EINVAL;
}
-err_sq_dbmap:
- if (udata)
- if ((hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_SQ_RECORD_DB) &&
- (udata->inlen >= sizeof(ucmd)) &&
- (udata->outlen >= sizeof(resp)) &&
- hns_roce_qp_has_sq(init_attr))
- hns_roce_db_unmap_user(
- to_hr_ucontext(ib_pd->uobject->context),
- &hr_qp->sdb);
+ if (!test_bit(hr_qp->cong_type, (unsigned long *)&hr_dev->caps.cong_cap))
+ return -EOPNOTSUPP;
-err_mtt:
- hns_roce_mtt_cleanup(hr_dev, &hr_qp->mtt);
+ if (hr_qp->ibqp.qp_type == IB_QPT_UD &&
+ hr_qp->cong_type != CONG_TYPE_DCQCN)
+ return -EOPNOTSUPP;
-err_buf:
- if (hr_qp->umem)
- ib_umem_release(hr_qp->umem);
+ return 0;
+}
+
+static int set_congest_param(struct hns_roce_dev *hr_dev,
+ struct hns_roce_qp *hr_qp,
+ struct hns_roce_ib_create_qp *ucmd)
+{
+ if (ucmd->comp_mask & HNS_ROCE_CREATE_QP_MASK_CONGEST_TYPE)
+ return set_congest_type(hr_qp, ucmd);
+
+ default_congest_type(hr_dev, hr_qp);
+
+ return 0;
+}
+
+static int set_qp_param(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp,
+ struct ib_qp_init_attr *init_attr,
+ struct ib_udata *udata,
+ struct hns_roce_ib_create_qp *ucmd)
+{
+ struct ib_device *ibdev = &hr_dev->ib_dev;
+ struct hns_roce_ucontext *uctx;
+ int ret;
+
+ if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR)
+ hr_qp->sq_signal_bits = IB_SIGNAL_ALL_WR;
else
- hns_roce_buf_free(hr_dev, hr_qp->buff_size, &hr_qp->hr_buf);
+ hr_qp->sq_signal_bits = IB_SIGNAL_REQ_WR;
-err_db:
- if (!udata && hns_roce_qp_has_rq(init_attr) &&
- (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB))
- hns_roce_free_db(hr_dev, &hr_qp->rdb);
+ ret = set_rq_size(hr_dev, &init_attr->cap, hr_qp,
+ hns_roce_qp_has_rq(init_attr), !!udata);
+ if (ret) {
+ ibdev_err(ibdev, "failed to set user RQ size, ret = %d.\n",
+ ret);
+ return ret;
+ }
-err_rq_sge_list:
- if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RQ_INLINE)
- kfree(hr_qp->rq_inl_buf.wqe_list[0].sg_list);
+ if (udata) {
+ ret = ib_copy_from_udata(ucmd, udata,
+ min(udata->inlen, sizeof(*ucmd)));
+ if (ret) {
+ ibdev_err(ibdev,
+ "failed to copy QP ucmd, ret = %d\n", ret);
+ return ret;
+ }
-err_wqe_list:
- if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RQ_INLINE)
- kfree(hr_qp->rq_inl_buf.wqe_list);
+ uctx = rdma_udata_to_drv_context(udata, struct hns_roce_ucontext,
+ ibucontext);
+ hr_qp->config = uctx->config;
+ ret = set_user_sq_size(hr_dev, &init_attr->cap, hr_qp, ucmd);
+ if (ret) {
+ ibdev_err(ibdev,
+ "failed to set user SQ size, ret = %d.\n",
+ ret);
+ return ret;
+ }
+
+ ret = set_congest_param(hr_dev, hr_qp, ucmd);
+ } else {
+ if (hr_dev->pci_dev->revision >= PCI_REVISION_ID_HIP09)
+ hr_qp->config = HNS_ROCE_EXSGE_FLAGS;
+ default_congest_type(hr_dev, hr_qp);
+ ret = set_kernel_sq_size(hr_dev, &init_attr->cap, hr_qp);
+ if (ret)
+ ibdev_err(ibdev,
+ "failed to set kernel SQ size, ret = %d.\n",
+ ret);
+ }
-err_out:
return ret;
}
-struct ib_qp *hns_roce_create_qp(struct ib_pd *pd,
- struct ib_qp_init_attr *init_attr,
- struct ib_udata *udata)
+static int hns_roce_create_qp_common(struct hns_roce_dev *hr_dev,
+ struct ib_qp_init_attr *init_attr,
+ struct ib_udata *udata,
+ struct hns_roce_qp *hr_qp)
{
- struct hns_roce_dev *hr_dev = to_hr_dev(pd->device);
- struct device *dev = hr_dev->dev;
- struct hns_roce_sqp *hr_sqp;
- struct hns_roce_qp *hr_qp;
+ struct hns_roce_work *flush_work = &hr_qp->flush_work;
+ struct hns_roce_ib_create_qp_resp resp = {};
+ struct ib_device *ibdev = &hr_dev->ib_dev;
+ struct hns_roce_ib_create_qp ucmd = {};
int ret;
- switch (init_attr->qp_type) {
- case IB_QPT_RC: {
- hr_qp = kzalloc(sizeof(*hr_qp), GFP_KERNEL);
- if (!hr_qp)
- return ERR_PTR(-ENOMEM);
+ mutex_init(&hr_qp->mutex);
+ spin_lock_init(&hr_qp->sq.lock);
+ spin_lock_init(&hr_qp->rq.lock);
+ spin_lock_init(&hr_qp->flush_lock);
+
+ hr_qp->state = IB_QPS_RESET;
+ hr_qp->flush_flag = 0;
+ flush_work->hr_dev = hr_dev;
+ INIT_WORK(&flush_work->work, flush_work_handle);
+
+ if (init_attr->create_flags)
+ return -EOPNOTSUPP;
+
+ ret = set_qp_param(hr_dev, hr_qp, init_attr, udata, &ucmd);
+ if (ret) {
+ ibdev_err(ibdev, "failed to set QP param, ret = %d.\n", ret);
+ goto err_out;
+ }
- ret = hns_roce_create_qp_common(hr_dev, pd, init_attr, udata, 0,
- hr_qp);
+ if (!udata) {
+ ret = alloc_kernel_wrid(hr_dev, hr_qp);
if (ret) {
- dev_err(dev, "Create RC QP failed\n");
- kfree(hr_qp);
- return ERR_PTR(ret);
+ ibdev_err(ibdev, "failed to alloc wrid, ret = %d.\n",
+ ret);
+ goto err_out;
}
+ }
- hr_qp->ibqp.qp_num = hr_qp->qpn;
+ ret = alloc_qp_buf(hr_dev, hr_qp, init_attr, udata, ucmd.buf_addr);
+ if (ret) {
+ ibdev_err(ibdev, "failed to alloc QP buffer, ret = %d.\n", ret);
+ goto err_buf;
+ }
- break;
+ ret = alloc_qpn(hr_dev, hr_qp, init_attr);
+ if (ret) {
+ ibdev_err(ibdev, "failed to alloc QPN, ret = %d.\n", ret);
+ goto err_qpn;
}
- case IB_QPT_GSI: {
- /* Userspace is not allowed to create special QPs: */
- if (udata) {
- dev_err(dev, "not support usr space GSI\n");
- return ERR_PTR(-EINVAL);
- }
- hr_sqp = kzalloc(sizeof(*hr_sqp), GFP_KERNEL);
- if (!hr_sqp)
- return ERR_PTR(-ENOMEM);
+ ret = alloc_qp_db(hr_dev, hr_qp, init_attr, udata, &ucmd, &resp);
+ if (ret) {
+ ibdev_err(ibdev, "failed to alloc QP doorbell, ret = %d.\n",
+ ret);
+ goto err_db;
+ }
- hr_qp = &hr_sqp->hr_qp;
- hr_qp->port = init_attr->port_num - 1;
- hr_qp->phy_port = hr_dev->iboe.phy_port[hr_qp->port];
+ ret = alloc_qpc(hr_dev, hr_qp);
+ if (ret) {
+ ibdev_err(ibdev, "failed to alloc QP context, ret = %d.\n",
+ ret);
+ goto err_qpc;
+ }
- /* when hw version is v1, the sqpn is allocated */
- if (hr_dev->caps.max_sq_sg <= 2)
- hr_qp->ibqp.qp_num = HNS_ROCE_MAX_PORTS +
- hr_dev->iboe.phy_port[hr_qp->port];
- else
- hr_qp->ibqp.qp_num = 1;
+ ret = hns_roce_qp_store(hr_dev, hr_qp, init_attr);
+ if (ret) {
+ ibdev_err(ibdev, "failed to store QP, ret = %d.\n", ret);
+ goto err_store;
+ }
- ret = hns_roce_create_qp_common(hr_dev, pd, init_attr, udata,
- hr_qp->ibqp.qp_num, hr_qp);
+ if (udata) {
+ resp.cap_flags = hr_qp->en_flags;
+ ret = ib_copy_to_udata(udata, &resp,
+ min(udata->outlen, sizeof(resp)));
if (ret) {
- dev_err(dev, "Create GSI QP failed!\n");
- kfree(hr_sqp);
- return ERR_PTR(ret);
+ ibdev_err(ibdev, "copy qp resp failed!\n");
+ goto err_flow_ctrl;
}
+ }
- break;
+ if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_QP_FLOW_CTRL) {
+ ret = hr_dev->hw->qp_flow_control_init(hr_dev, hr_qp);
+ if (ret)
+ goto err_flow_ctrl;
}
- default:{
- dev_err(dev, "not support QP type %d\n", init_attr->qp_type);
- return ERR_PTR(-EINVAL);
+
+ hr_qp->ibqp.qp_num = hr_qp->qpn;
+ hr_qp->event = hns_roce_ib_qp_event;
+ refcount_set(&hr_qp->refcount, 1);
+ init_completion(&hr_qp->free);
+
+ return 0;
+
+err_flow_ctrl:
+ hns_roce_qp_remove(hr_dev, hr_qp);
+err_store:
+ free_qpc(hr_dev, hr_qp);
+err_qpc:
+ free_qp_db(hr_dev, hr_qp, udata);
+err_db:
+ free_qpn(hr_dev, hr_qp);
+err_qpn:
+ free_qp_buf(hr_dev, hr_qp);
+err_buf:
+ free_kernel_wrid(hr_qp);
+err_out:
+ mutex_destroy(&hr_qp->mutex);
+ return ret;
+}
+
+void hns_roce_qp_destroy(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp,
+ struct ib_udata *udata)
+{
+ if (refcount_dec_and_test(&hr_qp->refcount))
+ complete(&hr_qp->free);
+ wait_for_completion(&hr_qp->free);
+
+ free_qpc(hr_dev, hr_qp);
+ free_qpn(hr_dev, hr_qp);
+ free_qp_buf(hr_dev, hr_qp);
+ free_kernel_wrid(hr_qp);
+ free_qp_db(hr_dev, hr_qp, udata);
+ mutex_destroy(&hr_qp->mutex);
+}
+
+static int check_qp_type(struct hns_roce_dev *hr_dev, enum ib_qp_type type,
+ bool is_user)
+{
+ switch (type) {
+ case IB_QPT_XRC_INI:
+ case IB_QPT_XRC_TGT:
+ if (!(hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_XRC))
+ goto out;
+ break;
+ case IB_QPT_UD:
+ if (hr_dev->pci_dev->revision == PCI_REVISION_ID_HIP08 &&
+ is_user)
+ goto out;
+ break;
+ case IB_QPT_RC:
+ case IB_QPT_GSI:
+ break;
+ default:
+ goto out;
}
+
+ return 0;
+
+out:
+ ibdev_err(&hr_dev->ib_dev, "not support QP type %d\n", type);
+
+ return -EOPNOTSUPP;
+}
+
+int hns_roce_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *init_attr,
+ struct ib_udata *udata)
+{
+ struct ib_device *ibdev = qp->device;
+ struct hns_roce_dev *hr_dev = to_hr_dev(ibdev);
+ struct hns_roce_qp *hr_qp = to_hr_qp(qp);
+ int ret;
+
+ ret = check_qp_type(hr_dev, init_attr->qp_type, !!udata);
+ if (ret)
+ goto err_out;
+
+ if (init_attr->qp_type == IB_QPT_XRC_TGT)
+ hr_qp->xrcdn = to_hr_xrcd(init_attr->xrcd)->xrcdn;
+
+ if (init_attr->qp_type == IB_QPT_GSI) {
+ hr_qp->port = init_attr->port_num - 1;
+ hr_qp->phy_port = hr_dev->iboe.phy_port[hr_qp->port];
}
- return &hr_qp->ibqp;
+ ret = hns_roce_create_qp_common(hr_dev, init_attr, udata, hr_qp);
+ if (ret)
+ ibdev_err(ibdev, "create QP type %d failed(%d)\n",
+ init_attr->qp_type, ret);
+
+err_out:
+ if (ret)
+ atomic64_inc(&hr_dev->dfx_cnt[HNS_ROCE_DFX_QP_CREATE_ERR_CNT]);
+
+ return ret;
}
-EXPORT_SYMBOL_GPL(hns_roce_create_qp);
int to_hr_qp_type(int qp_type)
{
- int transport_type;
+ switch (qp_type) {
+ case IB_QPT_RC:
+ return SERV_TYPE_RC;
+ case IB_QPT_UD:
+ case IB_QPT_GSI:
+ return SERV_TYPE_UD;
+ case IB_QPT_XRC_INI:
+ case IB_QPT_XRC_TGT:
+ return SERV_TYPE_XRC;
+ default:
+ return -1;
+ }
+}
- if (qp_type == IB_QPT_RC)
- transport_type = SERV_TYPE_RC;
- else if (qp_type == IB_QPT_UC)
- transport_type = SERV_TYPE_UC;
- else if (qp_type == IB_QPT_UD)
- transport_type = SERV_TYPE_UD;
- else if (qp_type == IB_QPT_GSI)
- transport_type = SERV_TYPE_UD;
- else
- transport_type = -1;
+static int check_mtu_validate(struct hns_roce_dev *hr_dev,
+ struct hns_roce_qp *hr_qp,
+ struct ib_qp_attr *attr, int attr_mask)
+{
+ struct net_device *net_dev;
+ enum ib_mtu active_mtu;
+ int p;
+
+ p = attr_mask & IB_QP_PORT ? (attr->port_num - 1) : hr_qp->port;
+ net_dev = get_hr_netdev(hr_dev, p);
+ active_mtu = iboe_get_mtu(net_dev->mtu);
+
+ if ((hr_dev->caps.max_mtu >= IB_MTU_2048 &&
+ attr->path_mtu > hr_dev->caps.max_mtu) ||
+ attr->path_mtu < IB_MTU_256 || attr->path_mtu > active_mtu) {
+ ibdev_err(&hr_dev->ib_dev,
+ "attr path_mtu(%d)invalid while modify qp",
+ attr->path_mtu);
+ return -EINVAL;
+ }
- return transport_type;
+ return 0;
+}
+
+static int hns_roce_check_qp_attr(struct ib_qp *ibqp, struct ib_qp_attr *attr,
+ int attr_mask)
+{
+ struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device);
+ struct hns_roce_qp *hr_qp = to_hr_qp(ibqp);
+ int p;
+
+ if ((attr_mask & IB_QP_PORT) &&
+ (attr->port_num == 0 || attr->port_num > hr_dev->caps.num_ports)) {
+ ibdev_err(&hr_dev->ib_dev, "invalid attr, port_num = %u.\n",
+ attr->port_num);
+ return -EINVAL;
+ }
+
+ if (attr_mask & IB_QP_PKEY_INDEX) {
+ p = attr_mask & IB_QP_PORT ? (attr->port_num - 1) : hr_qp->port;
+ if (attr->pkey_index >= hr_dev->caps.pkey_table_len[p]) {
+ ibdev_err(&hr_dev->ib_dev,
+ "invalid attr, pkey_index = %u.\n",
+ attr->pkey_index);
+ return -EINVAL;
+ }
+ }
+
+ if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC &&
+ attr->max_rd_atomic > hr_dev->caps.max_qp_init_rdma) {
+ ibdev_err(&hr_dev->ib_dev,
+ "invalid attr, max_rd_atomic = %u.\n",
+ attr->max_rd_atomic);
+ return -EINVAL;
+ }
+
+ if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC &&
+ attr->max_dest_rd_atomic > hr_dev->caps.max_qp_dest_rdma) {
+ ibdev_err(&hr_dev->ib_dev,
+ "invalid attr, max_dest_rd_atomic = %u.\n",
+ attr->max_dest_rd_atomic);
+ return -EINVAL;
+ }
+
+ if (attr_mask & IB_QP_PATH_MTU)
+ return check_mtu_validate(hr_dev, hr_qp, attr, attr_mask);
+
+ return 0;
}
-EXPORT_SYMBOL_GPL(to_hr_qp_type);
int hns_roce_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
int attr_mask, struct ib_udata *udata)
{
struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device);
+ struct hns_roce_ib_modify_qp_resp resp = {};
struct hns_roce_qp *hr_qp = to_hr_qp(ibqp);
enum ib_qp_state cur_state, new_state;
- struct device *dev = hr_dev->dev;
int ret = -EINVAL;
- int p;
- enum ib_mtu active_mtu;
mutex_lock(&hr_qp->mutex);
- cur_state = attr_mask & IB_QP_CUR_STATE ?
- attr->cur_qp_state : (enum ib_qp_state)hr_qp->state;
- new_state = attr_mask & IB_QP_STATE ?
- attr->qp_state : cur_state;
+ if (attr_mask & IB_QP_CUR_STATE && attr->cur_qp_state != hr_qp->state)
+ goto out;
+
+ cur_state = hr_qp->state;
+ new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state;
if (ibqp->uobject &&
(attr_mask & IB_QP_STATE) && new_state == IB_QPS_ERR) {
- if (hr_qp->sdb_en == 1) {
+ if (hr_qp->en_flags & HNS_ROCE_QP_CAP_SQ_RECORD_DB) {
hr_qp->sq.head = *(int *)(hr_qp->sdb.virt_addr);
- hr_qp->rq.head = *(int *)(hr_qp->rdb.virt_addr);
+
+ if (hr_qp->en_flags & HNS_ROCE_QP_CAP_RQ_RECORD_DB)
+ hr_qp->rq.head = *(int *)(hr_qp->rdb.virt_addr);
} else {
- dev_warn(dev, "flush cqe is not supported in userspace!\n");
+ ibdev_warn(&hr_dev->ib_dev,
+ "flush cqe is not supported in userspace!\n");
goto out;
}
}
if (!ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type,
attr_mask)) {
- dev_err(dev, "ib_modify_qp_is_ok failed\n");
+ ibdev_err(&hr_dev->ib_dev, "ib_modify_qp_is_ok failed\n");
goto out;
}
- if ((attr_mask & IB_QP_PORT) &&
- (attr->port_num == 0 || attr->port_num > hr_dev->caps.num_ports)) {
- dev_err(dev, "attr port_num invalid.attr->port_num=%d\n",
- attr->port_num);
+ ret = hns_roce_check_qp_attr(ibqp, attr, attr_mask);
+ if (ret)
goto out;
- }
-
- if (attr_mask & IB_QP_PKEY_INDEX) {
- p = attr_mask & IB_QP_PORT ? (attr->port_num - 1) : hr_qp->port;
- if (attr->pkey_index >= hr_dev->caps.pkey_table_len[p]) {
- dev_err(dev, "attr pkey_index invalid.attr->pkey_index=%d\n",
- attr->pkey_index);
- goto out;
- }
- }
-
- if (attr_mask & IB_QP_PATH_MTU) {
- p = attr_mask & IB_QP_PORT ? (attr->port_num - 1) : hr_qp->port;
- active_mtu = iboe_get_mtu(hr_dev->iboe.netdevs[p]->mtu);
-
- if ((hr_dev->caps.max_mtu == IB_MTU_4096 &&
- attr->path_mtu > IB_MTU_4096) ||
- (hr_dev->caps.max_mtu == IB_MTU_2048 &&
- attr->path_mtu > IB_MTU_2048) ||
- attr->path_mtu < IB_MTU_256 ||
- attr->path_mtu > active_mtu) {
- dev_err(dev, "attr path_mtu(%d)invalid while modify qp",
- attr->path_mtu);
- goto out;
- }
- }
- if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC &&
- attr->max_rd_atomic > hr_dev->caps.max_qp_init_rdma) {
- dev_err(dev, "attr max_rd_atomic invalid.attr->max_rd_atomic=%d\n",
- attr->max_rd_atomic);
+ if (cur_state == new_state && cur_state == IB_QPS_RESET)
goto out;
- }
- if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC &&
- attr->max_dest_rd_atomic > hr_dev->caps.max_qp_dest_rdma) {
- dev_err(dev, "attr max_dest_rd_atomic invalid.attr->max_dest_rd_atomic=%d\n",
- attr->max_dest_rd_atomic);
+ ret = hr_dev->hw->modify_qp(ibqp, attr, attr_mask, cur_state,
+ new_state, udata);
+ if (ret)
goto out;
- }
- if (cur_state == new_state && cur_state == IB_QPS_RESET) {
- if (hr_dev->caps.min_wqes) {
- ret = -EPERM;
- dev_err(dev, "cur_state=%d new_state=%d\n", cur_state,
- new_state);
- } else {
- ret = 0;
- }
-
- goto out;
+ if (udata && udata->outlen) {
+ resp.tc_mode = hr_qp->tc_mode;
+ resp.priority = hr_qp->sl;
+ ret = ib_copy_to_udata(udata, &resp,
+ min(udata->outlen, sizeof(resp)));
+ if (ret)
+ ibdev_err_ratelimited(&hr_dev->ib_dev,
+ "failed to copy modify qp resp.\n");
}
- ret = hr_dev->hw->modify_qp(ibqp, attr, attr_mask, cur_state,
- new_state);
-
out:
mutex_unlock(&hr_qp->mutex);
+ if (ret)
+ atomic64_inc(&hr_dev->dfx_cnt[HNS_ROCE_DFX_QP_MODIFY_ERR_CNT]);
return ret;
}
@@ -1052,69 +1483,80 @@ out:
void hns_roce_lock_cqs(struct hns_roce_cq *send_cq, struct hns_roce_cq *recv_cq)
__acquires(&send_cq->lock) __acquires(&recv_cq->lock)
{
- if (send_cq == recv_cq) {
- spin_lock_irq(&send_cq->lock);
+ if (unlikely(send_cq == NULL && recv_cq == NULL)) {
+ __acquire(&send_cq->lock);
+ __acquire(&recv_cq->lock);
+ } else if (unlikely(send_cq != NULL && recv_cq == NULL)) {
+ spin_lock(&send_cq->lock);
+ __acquire(&recv_cq->lock);
+ } else if (unlikely(send_cq == NULL && recv_cq != NULL)) {
+ spin_lock(&recv_cq->lock);
+ __acquire(&send_cq->lock);
+ } else if (send_cq == recv_cq) {
+ spin_lock(&send_cq->lock);
__acquire(&recv_cq->lock);
} else if (send_cq->cqn < recv_cq->cqn) {
- spin_lock_irq(&send_cq->lock);
+ spin_lock(&send_cq->lock);
spin_lock_nested(&recv_cq->lock, SINGLE_DEPTH_NESTING);
} else {
- spin_lock_irq(&recv_cq->lock);
+ spin_lock(&recv_cq->lock);
spin_lock_nested(&send_cq->lock, SINGLE_DEPTH_NESTING);
}
}
-EXPORT_SYMBOL_GPL(hns_roce_lock_cqs);
void hns_roce_unlock_cqs(struct hns_roce_cq *send_cq,
struct hns_roce_cq *recv_cq) __releases(&send_cq->lock)
__releases(&recv_cq->lock)
{
- if (send_cq == recv_cq) {
+ if (unlikely(send_cq == NULL && recv_cq == NULL)) {
__release(&recv_cq->lock);
- spin_unlock_irq(&send_cq->lock);
+ __release(&send_cq->lock);
+ } else if (unlikely(send_cq != NULL && recv_cq == NULL)) {
+ __release(&recv_cq->lock);
+ spin_unlock(&send_cq->lock);
+ } else if (unlikely(send_cq == NULL && recv_cq != NULL)) {
+ __release(&send_cq->lock);
+ spin_unlock(&recv_cq->lock);
+ } else if (send_cq == recv_cq) {
+ __release(&recv_cq->lock);
+ spin_unlock(&send_cq->lock);
} else if (send_cq->cqn < recv_cq->cqn) {
spin_unlock(&recv_cq->lock);
- spin_unlock_irq(&send_cq->lock);
+ spin_unlock(&send_cq->lock);
} else {
spin_unlock(&send_cq->lock);
- spin_unlock_irq(&recv_cq->lock);
+ spin_unlock(&recv_cq->lock);
}
}
-EXPORT_SYMBOL_GPL(hns_roce_unlock_cqs);
-static void *get_wqe(struct hns_roce_qp *hr_qp, int offset)
+static inline void *get_wqe(struct hns_roce_qp *hr_qp, u32 offset)
{
-
- return hns_roce_buf_offset(&hr_qp->hr_buf, offset);
+ return hns_roce_buf_offset(hr_qp->mtr.kmem, offset);
}
-void *get_recv_wqe(struct hns_roce_qp *hr_qp, int n)
+void *hns_roce_get_recv_wqe(struct hns_roce_qp *hr_qp, unsigned int n)
{
return get_wqe(hr_qp, hr_qp->rq.offset + (n << hr_qp->rq.wqe_shift));
}
-EXPORT_SYMBOL_GPL(get_recv_wqe);
-void *get_send_wqe(struct hns_roce_qp *hr_qp, int n)
+void *hns_roce_get_send_wqe(struct hns_roce_qp *hr_qp, unsigned int n)
{
return get_wqe(hr_qp, hr_qp->sq.offset + (n << hr_qp->sq.wqe_shift));
}
-EXPORT_SYMBOL_GPL(get_send_wqe);
-void *get_send_extend_sge(struct hns_roce_qp *hr_qp, int n)
+void *hns_roce_get_extend_sge(struct hns_roce_qp *hr_qp, unsigned int n)
{
- return hns_roce_buf_offset(&hr_qp->hr_buf, hr_qp->sge.offset +
- (n << hr_qp->sge.sge_shift));
+ return get_wqe(hr_qp, hr_qp->sge.offset + (n << hr_qp->sge.sge_shift));
}
-EXPORT_SYMBOL_GPL(get_send_extend_sge);
-bool hns_roce_wq_overflow(struct hns_roce_wq *hr_wq, int nreq,
+bool hns_roce_wq_overflow(struct hns_roce_wq *hr_wq, u32 nreq,
struct ib_cq *ib_cq)
{
struct hns_roce_cq *hr_cq;
u32 cur;
cur = hr_wq->head - hr_wq->tail;
- if (likely(cur + nreq < hr_wq->max_post))
+ if (likely(cur + nreq < hr_wq->wqe_cnt))
return false;
hr_cq = to_hr_cq(ib_cq);
@@ -1122,33 +1564,32 @@ bool hns_roce_wq_overflow(struct hns_roce_wq *hr_wq, int nreq,
cur = hr_wq->head - hr_wq->tail;
spin_unlock(&hr_cq->lock);
- return cur + nreq >= hr_wq->max_post;
+ return cur + nreq >= hr_wq->wqe_cnt;
}
-EXPORT_SYMBOL_GPL(hns_roce_wq_overflow);
int hns_roce_init_qp_table(struct hns_roce_dev *hr_dev)
{
struct hns_roce_qp_table *qp_table = &hr_dev->qp_table;
- int reserved_from_top = 0;
- int reserved_from_bot;
- int ret;
+ unsigned int reserved_from_bot;
+ unsigned int i;
- spin_lock_init(&qp_table->lock);
- INIT_RADIX_TREE(&hr_dev->qp_table_tree, GFP_ATOMIC);
+ mutex_init(&qp_table->scc_mutex);
+ mutex_init(&qp_table->bank_mutex);
+ xa_init(&hr_dev->qp_table_xa);
+ xa_init(&qp_table->dip_xa);
- /* In hw v1, a port include two SQP, six ports total 12 */
- if (hr_dev->caps.max_sq_sg <= 2)
- reserved_from_bot = SQP_NUM;
- else
- reserved_from_bot = hr_dev->caps.reserved_qps;
+ reserved_from_bot = hr_dev->caps.reserved_qps;
- ret = hns_roce_bitmap_init(&qp_table->bitmap, hr_dev->caps.num_qps,
- hr_dev->caps.num_qps - 1, reserved_from_bot,
- reserved_from_top);
- if (ret) {
- dev_err(hr_dev->dev, "qp bitmap init failed!error=%d\n",
- ret);
- return ret;
+ for (i = 0; i < reserved_from_bot; i++) {
+ hr_dev->qp_table.bank[get_qp_bankid(i)].inuse++;
+ hr_dev->qp_table.bank[get_qp_bankid(i)].min++;
+ }
+
+ for (i = 0; i < HNS_ROCE_QP_BANK_NUM; i++) {
+ ida_init(&hr_dev->qp_table.bank[i].ida);
+ hr_dev->qp_table.bank[i].max = hr_dev->caps.num_qps /
+ HNS_ROCE_QP_BANK_NUM - 1;
+ hr_dev->qp_table.bank[i].next = hr_dev->qp_table.bank[i].min;
}
return 0;
@@ -1156,5 +1597,12 @@ int hns_roce_init_qp_table(struct hns_roce_dev *hr_dev)
void hns_roce_cleanup_qp_table(struct hns_roce_dev *hr_dev)
{
- hns_roce_bitmap_cleanup(&hr_dev->qp_table.bitmap);
+ int i;
+
+ for (i = 0; i < HNS_ROCE_QP_BANK_NUM; i++)
+ ida_destroy(&hr_dev->qp_table.bank[i].ida);
+ xa_destroy(&hr_dev->qp_table.dip_xa);
+ xa_destroy(&hr_dev->qp_table_xa);
+ mutex_destroy(&hr_dev->qp_table.bank_mutex);
+ mutex_destroy(&hr_dev->qp_table.scc_mutex);
}
generated by cgit (git 2.34.1) at 2025-12-26 14:31:51 +0000