qedr: Add support for QP verbs
Add support for Queue Pair verbs which adds, deletes,
modifies and queries Queue Pairs.
Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/hw/qedr/qedr.h b/drivers/infiniband/hw/qedr/qedr.h
index 9e2846a..e9fe941 100644
--- a/drivers/infiniband/hw/qedr/qedr.h
+++ b/drivers/infiniband/hw/qedr/qedr.h
@@ -52,6 +52,9 @@
#define QEDR_MSG_MISC "MISC"
#define QEDR_MSG_CQ " CQ"
#define QEDR_MSG_MR " MR"
+#define QEDR_MSG_RQ " RQ"
+#define QEDR_MSG_SQ " SQ"
+#define QEDR_MSG_QP " QP"
#define QEDR_CQ_MAGIC_NUMBER (0x11223344)
@@ -143,6 +146,8 @@ struct qedr_dev {
u32 dp_module;
u8 dp_level;
u8 num_hwfns;
+ uint wq_multiplier;
+
};
#define QEDR_MAX_SQ_PBL (0x8000)
@@ -272,6 +277,122 @@ struct qedr_mm {
struct list_head entry;
};
+union db_prod32 {
+ struct rdma_pwm_val16_data data;
+ u32 raw;
+};
+
+struct qedr_qp_hwq_info {
+ /* WQE Elements */
+ struct qed_chain pbl;
+ u64 p_phys_addr_tbl;
+ u32 max_sges;
+
+ /* WQE */
+ u16 prod;
+ u16 cons;
+ u16 wqe_cons;
+ u16 max_wr;
+
+ /* DB */
+ void __iomem *db;
+ union db_prod32 db_data;
+};
+
+#define QEDR_INC_SW_IDX(p_info, index) \
+ do { \
+ p_info->index = (p_info->index + 1) & \
+ qed_chain_get_capacity(p_info->pbl) \
+ } while (0)
+
+enum qedr_qp_err_bitmap {
+ QEDR_QP_ERR_SQ_FULL = 1,
+ QEDR_QP_ERR_RQ_FULL = 2,
+ QEDR_QP_ERR_BAD_SR = 4,
+ QEDR_QP_ERR_BAD_RR = 8,
+ QEDR_QP_ERR_SQ_PBL_FULL = 16,
+ QEDR_QP_ERR_RQ_PBL_FULL = 32,
+};
+
+struct qedr_qp {
+ struct ib_qp ibqp; /* must be first */
+ struct qedr_dev *dev;
+
+ struct qedr_qp_hwq_info sq;
+ struct qedr_qp_hwq_info rq;
+
+ u32 max_inline_data;
+
+ /* Lock for QP's */
+ spinlock_t q_lock;
+ struct qedr_cq *sq_cq;
+ struct qedr_cq *rq_cq;
+ struct qedr_srq *srq;
+ enum qed_roce_qp_state state;
+ u32 id;
+ struct qedr_pd *pd;
+ enum ib_qp_type qp_type;
+ struct qed_rdma_qp *qed_qp;
+ u32 qp_id;
+ u16 icid;
+ u16 mtu;
+ int sgid_idx;
+ u32 rq_psn;
+ u32 sq_psn;
+ u32 qkey;
+ u32 dest_qp_num;
+
+ /* Relevant to qps created from kernel space only (ULPs) */
+ u8 prev_wqe_size;
+ u16 wqe_cons;
+ u32 err_bitmap;
+ bool signaled;
+
+ /* SQ shadow */
+ struct {
+ u64 wr_id;
+ enum ib_wc_opcode opcode;
+ u32 bytes_len;
+ u8 wqe_size;
+ bool signaled;
+ dma_addr_t icrc_mapping;
+ u32 *icrc;
+ struct qedr_mr *mr;
+ } *wqe_wr_id;
+
+ /* RQ shadow */
+ struct {
+ u64 wr_id;
+ struct ib_sge sg_list[RDMA_MAX_SGE_PER_RQ_WQE];
+ u8 wqe_size;
+
+ u16 vlan_id;
+ int rc;
+ } *rqe_wr_id;
+
+ /* Relevant to qps created from user space only (applications) */
+ struct qedr_userq usq;
+ struct qedr_userq urq;
+};
+
+static inline int qedr_get_dmac(struct qedr_dev *dev,
+ struct ib_ah_attr *ah_attr, u8 *mac_addr)
+{
+ union ib_gid zero_sgid = { { 0 } };
+ struct in6_addr in6;
+
+ if (!memcmp(&ah_attr->grh.dgid, &zero_sgid, sizeof(union ib_gid))) {
+ DP_ERR(dev, "Local port GID not supported\n");
+ eth_zero_addr(mac_addr);
+ return -EINVAL;
+ }
+
+ memcpy(&in6, ah_attr->grh.dgid.raw, sizeof(in6));
+ ether_addr_copy(mac_addr, ah_attr->dmac);
+
+ return 0;
+}
+
static inline
struct qedr_ucontext *get_qedr_ucontext(struct ib_ucontext *ibucontext)
{
@@ -293,4 +414,8 @@ static inline struct qedr_cq *get_qedr_cq(struct ib_cq *ibcq)
return container_of(ibcq, struct qedr_cq, ibcq);
}
+static inline struct qedr_qp *get_qedr_qp(struct ib_qp *ibqp)
+{
+ return container_of(ibqp, struct qedr_qp, ibqp);
+}
#endif