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charset="utf-8" Read the default_qp_transport_mode and rcq_sign_bit from the RDMA LIF identity reported by firmware. Signed-off-by: Abhijit Gangurde --- drivers/net/ethernet/pensando/ionic/ionic_if.h | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/pensando/ionic/ionic_if.h b/drivers/net/e= thernet/pensando/ionic/ionic_if.h index 23d6e2b4791e..f6c2ca335dfb 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_if.h +++ b/drivers/net/ethernet/pensando/ionic/ionic_if.h @@ -553,6 +553,11 @@ enum ionic_lif_rdma_cap_stats { * @rdma.eq_qtype: RDMA Event Qtype * @rdma.stats_type: Supported statistics type * (enum ionic_lif_rdma_cap_stats) + * @rdma.rsvd: Reserved byte + * @rdma.rcq_sign_bit: RCQ sign bit + * @rdma.srq_qtype: RDMA Shared Receive Qtype + * @rdma.rsvd2: Reserved byte + * @rdma.default_qp_transport_mode: Default QP transport mode * @rdma.rsvd1: Reserved byte(s) * @words: word access to struct contents */ @@ -598,7 +603,12 @@ union ionic_lif_identity { struct ionic_lif_logical_qtype cq_qtype; struct ionic_lif_logical_qtype eq_qtype; __le16 stats_type; 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charset="utf-8" Read the default_qp_transport_mode and rcq_sign_bit fields from the RDMA LIF identity reported by firmware, store them in the driver's lif_cfg, and expose them to userspace via the ucontext response. The default_qp_transport_mode indicates which QP transport type the device uses. The rcq_sign_bit indicates the Reorder Completion Queue (RCQ) sign bit capability. Co-developed-by: Allen Hubbe Signed-off-by: Allen Hubbe Signed-off-by: Abhijit Gangurde --- drivers/infiniband/hw/ionic/ionic_controlpath.c | 4 +++- drivers/infiniband/hw/ionic/ionic_lif_cfg.c | 2 ++ drivers/infiniband/hw/ionic/ionic_lif_cfg.h | 2 ++ include/uapi/rdma/ionic-abi.h | 4 +++- 4 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/ionic/ionic_controlpath.c b/drivers/infi= niband/hw/ionic/ionic_controlpath.c index 7051a81cca94..6bb645713d6b 100644 --- a/drivers/infiniband/hw/ionic/ionic_controlpath.c +++ b/drivers/infiniband/hw/ionic/ionic_controlpath.c @@ -408,13 +408,15 @@ int ionic_alloc_ucontext(struct ib_ucontext *ibctx, s= truct ib_udata *udata) =20 resp.udma_count =3D dev->lif_cfg.udma_count; resp.expdb_mask =3D dev->lif_cfg.expdb_mask; + resp.rcq_sign_bit =3D dev->lif_cfg.rcq_sign_bit; + resp.default_qp_transport_mode =3D dev->lif_cfg.default_qp_transport_mode; =20 if (dev->lif_cfg.sq_expdb) resp.expdb_qtypes |=3D IONIC_EXPDB_SQ; if (dev->lif_cfg.rq_expdb) resp.expdb_qtypes |=3D IONIC_EXPDB_RQ; =20 - rc =3D ib_copy_to_udata(udata, &resp, sizeof(resp)); + rc =3D ib_respond_udata(udata, resp); if (rc) goto err_resp; =20 diff --git a/drivers/infiniband/hw/ionic/ionic_lif_cfg.c b/drivers/infiniba= nd/hw/ionic/ionic_lif_cfg.c index f3cd281c3a2f..2a27dd22e4c4 100644 --- a/drivers/infiniband/hw/ionic/ionic_lif_cfg.c +++ b/drivers/infiniband/hw/ionic/ionic_lif_cfg.c @@ -84,6 +84,8 @@ void ionic_fill_lif_cfg(struct ionic_lif *lif, struct ion= ic_lif_cfg *cfg) cfg->udma_count =3D 2; =20 cfg->max_stride =3D ident->rdma.max_stride; + cfg->rcq_sign_bit =3D ident->rdma.rcq_sign_bit; + cfg->default_qp_transport_mode =3D ident->rdma.default_qp_transport_mode; cfg->expdb_mask =3D ionic_get_expdb(lif); =20 cfg->sq_expdb =3D diff --git a/drivers/infiniband/hw/ionic/ionic_lif_cfg.h b/drivers/infiniba= nd/hw/ionic/ionic_lif_cfg.h index 20853429f623..abf169d2727a 100644 --- a/drivers/infiniband/hw/ionic/ionic_lif_cfg.h +++ b/drivers/infiniband/hw/ionic/ionic_lif_cfg.h @@ -56,6 +56,8 @@ struct ionic_lif_cfg { bool sq_expdb; 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charset="utf-8" Allow userspace to specify the QP transport mode and number of reorder completion queue paths during QP creation and modification. Extend ionic_qp_req with transport_mode, num_rcq_paths, and ionic_flags fields. The transport mode selects the firmware QP type, ionic_flags are forwarded in the upper bits of priv_flags during QP creation, and num_rcq_paths is passed to firmware during QP modify. Co-developed-by: Allen Hubbe Signed-off-by: Allen Hubbe Signed-off-by: Abhijit Gangurde --- .../infiniband/hw/ionic/ionic_controlpath.c | 16 +++++++++++----- drivers/infiniband/hw/ionic/ionic_fw.h | 18 +++++++++++++++--- drivers/infiniband/hw/ionic/ionic_ibdev.h | 1 + include/uapi/rdma/ionic-abi.h | 5 ++++- 4 files changed, 31 insertions(+), 9 deletions(-) diff --git a/drivers/infiniband/hw/ionic/ionic_controlpath.c b/drivers/infi= niband/hw/ionic/ionic_controlpath.c index 6bb645713d6b..5a6d4036ea98 100644 --- a/drivers/infiniband/hw/ionic/ionic_controlpath.c +++ b/drivers/infiniband/hw/ionic/ionic_controlpath.c @@ -1326,7 +1326,9 @@ static int ionic_create_qp_cmd(struct ionic_ibdev *de= v, struct ionic_qp *qp, struct ionic_tbl_buf *sq_buf, struct ionic_tbl_buf *rq_buf, - struct ib_qp_init_attr *attr) + struct ib_qp_init_attr *attr, + u32 ionic_flags, + enum ionic_qp_transport_mode transport_mode) { const u16 dbid =3D ionic_obj_dbid(dev, pd->ibpd.uobject); const u32 flags =3D to_ionic_qp_flags(0, 0, @@ -1342,8 +1344,9 @@ static int ionic_create_qp_cmd(struct ionic_ibdev *de= v, .len =3D cpu_to_le16(IONIC_ADMIN_CREATE_QP_IN_V1_LEN), .cmd.create_qp =3D { .pd_id =3D cpu_to_le32(pd->pdid), - .priv_flags =3D cpu_to_be32(flags), - .type_state =3D to_ionic_qp_type(attr->qp_type), + .priv_flags =3D cpu_to_be32(flags | + (ionic_flags & IONIC_QP_USER_FLAGS_MASK)), + .type_state =3D to_ionic_qp_type(attr->qp_type, transport_mode), .dbid_flags =3D cpu_to_le16(dbid), .id_ver =3D cpu_to_le32(qp->qpid), } @@ -1412,6 +1415,7 @@ static int ionic_modify_qp_cmd(struct ionic_ibdev *de= v, (attr->rnr_retry << 4)), .rnr_timer =3D attr->min_rnr_timer, .retry_timeout =3D attr->timeout, + .mrc_num_paths =3D qp->num_rcq_paths, .type_state =3D state, .id_ver =3D cpu_to_le32(qp->qpid), } @@ -2156,7 +2160,7 @@ int ionic_create_qp(struct ib_qp *ibqp, struct ib_qp_= init_attr *attr, int rc; =20 if (udata) { - rc =3D ib_copy_validate_udata_in(udata, req, rsvd); + rc =3D ib_copy_validate_udata_in(udata, req, ionic_flags); if (rc) return rc; } else { @@ -2203,6 +2207,7 @@ int ionic_create_qp(struct ib_qp *ibqp, struct ib_qp_= init_attr *attr, =20 qp->sig_all =3D attr->sq_sig_type =3D=3D IB_SIGNAL_ALL_WR; qp->has_ah =3D attr->qp_type =3D=3D IB_QPT_RC; + qp->num_rcq_paths =3D req.num_rcq_paths; =20 if (qp->has_ah) { qp->hdr =3D kzalloc_obj(*qp->hdr); @@ -2239,7 +2244,8 @@ int ionic_create_qp(struct ib_qp *ibqp, struct ib_qp_= init_attr *attr, rc =3D ionic_create_qp_cmd(dev, pd, to_ionic_vcq_cq(attr->send_cq, qp->udma_idx), to_ionic_vcq_cq(attr->recv_cq, qp->udma_idx), - qp, &sq_buf, &rq_buf, attr); + qp, &sq_buf, &rq_buf, attr, req.ionic_flags, + req.transport_mode); if (rc) goto err_cmd; =20 diff --git a/drivers/infiniband/hw/ionic/ionic_fw.h b/drivers/infiniband/hw= /ionic/ionic_fw.h index adfbb89d856c..3a31cd9073ca 100644 --- a/drivers/infiniband/hw/ionic/ionic_fw.h +++ b/drivers/infiniband/hw/ionic/ionic_fw.h @@ -105,6 +105,8 @@ enum ionic_qp_flags { IONIC_QPF_SQ_CMB =3D BIT(13), IONIC_QPF_RQ_CMB =3D BIT(14), IONIC_QPF_PRIVILEGED =3D BIT(15), + + IONIC_QP_USER_FLAGS_MASK =3D GENMASK(31, 16), }; =20 static inline int from_ionic_qp_flags(int flags) @@ -218,6 +220,11 @@ static inline int ionic_to_ib_status(int sts) } } =20 +enum ionic_qp_transport_mode { + IONIC_QPT_TRANSPORT_ROCE_V2 =3D BIT(0), + IONIC_QPT_TRANSPORT_MRC =3D BIT(1), +}; + /* admin queue qp type */ enum ionic_qp_type { IONIC_QPT_RC, @@ -228,16 +235,21 @@ enum ionic_qp_type { IONIC_QPT_XRC_INI, IONIC_QPT_XRC_TGT, IONIC_QPT_XRC_SRQ, + IONIC_QPT_MRC, }; =20 -static inline int to_ionic_qp_type(enum ib_qp_type type) +static inline int to_ionic_qp_type(enum ib_qp_type type, + enum ionic_qp_transport_mode tm) { switch (type) { case IB_QPT_GSI: case IB_QPT_UD: return IONIC_QPT_UD; case IB_QPT_RC: - return IONIC_QPT_RC; + if (tm =3D=3D IONIC_QPT_TRANSPORT_MRC) + return IONIC_QPT_MRC; + else + return IONIC_QPT_RC; case IB_QPT_UC: return IONIC_QPT_UC; case IB_QPT_XRC_INI: @@ -808,7 +820,7 @@ struct ionic_admin_mod_qp { __le32 ah_id_len; __u8 en_pcp; __u8 ip_dscp; - __u8 rsvd2; + __u8 mrc_num_paths; __u8 type_state; union { struct { diff --git a/drivers/infiniband/hw/ionic/ionic_ibdev.h b/drivers/infiniband= /hw/ionic/ionic_ibdev.h index 63828240d659..24a7f93e1f00 100644 --- a/drivers/infiniband/hw/ionic/ionic_ibdev.h +++ b/drivers/infiniband/hw/ionic/ionic_ibdev.h @@ -253,6 +253,7 @@ struct ionic_qp { u8 has_sq:1; u8 has_rq:1; u8 sig_all:1; + u8 num_rcq_paths; =20 struct list_head qp_list_counter; =20 diff --git a/include/uapi/rdma/ionic-abi.h b/include/uapi/rdma/ionic-abi.h index fb0d13094c12..bd02e4541d85 100644 --- a/include/uapi/rdma/ionic-abi.h +++ b/include/uapi/rdma/ionic-abi.h @@ -85,7 +85,10 @@ struct ionic_qp_req { __u8 sq_cmb; __u8 rq_cmb; __u8 udma_mask; - __u8 rsvd[3]; + __u8 num_rcq_paths; + __u8 transport_mode; + __u8 rsvd; + __u32 ionic_flags; }; =20 struct ionic_qp_resp { --=20 2.43.0