Again... Please ignore this version because I forgot to modify the title and description. Sorry for keep resending this one. Weihang. On 2020/3/12 17:35, Weihang Li wrote: > From: Lang Cheng <chenglang@xxxxxxxxxx> > > Minimum depth of qp should be allowed to be set to 0 according to the > firmware configuration. And when qp is changed from reset to reset, the > capability of minimum qp depth was used to identify hardware of hip06, > it should be changed into a more readable form. > > Signed-off-by: Lang Cheng <chenglang@xxxxxxxxxx> > Signed-off-by: Weihang Li <liweihang@xxxxxxxxxx> > --- > This patch is named "RDMA/hns: Support to set mininum depth of qp to 0" > before v3, and previous discussions can be found at: > https://patchwork.kernel.org/patch/11415067/ > > Changes since v3: > - Remove a "Reviewed-by" tag that hasn't been authorized. > > Changes since v2: > - Update this patch's name and description according to the modification of > code. > > Changes since v1: > - Fix comments from Leon about calculation of max_cnt, check for qp's depth > and modification of the prints. > - Optimize logic of codes to make them more readable. > - Replace dev_err() with ibdev_err(). > drivers/infiniband/hw/hns/hns_roce_qp.c | 77 ++++++++++++++------------------- > 1 file changed, 33 insertions(+), 44 deletions(-) > > diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c > index 09e4c46..d8cadbb 100644 > --- a/drivers/infiniband/hw/hns/hns_roce_qp.c > +++ b/drivers/infiniband/hw/hns/hns_roce_qp.c > @@ -360,52 +360,44 @@ static int 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) > { > - struct ib_device *ibdev = &hr_dev->ib_dev; > u32 max_cnt; > > - /* 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) { > - ibdev_err(ibdev, "Failed to check max recv WR %d and SGE %d\n", > - cap->max_recv_wr, cap->max_recv_sge); > - return -EINVAL; > - } > - > /* If srq exist, set zero for relative number of rq */ > if (!has_rq) { > hr_qp->rq.wqe_cnt = 0; > 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)) { > - ibdev_err(ibdev, "Failed to check user max recv WR and 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; > + return 0; > + } > > - hr_qp->rq.wqe_cnt = roundup_pow_of_two(max_cnt); > + /* 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 > hr_dev->caps.max_rq_sg) { > + ibdev_err(&hr_dev->ib_dev, "RQ config error, depth=%u, sge=%d\n", > + cap->max_recv_wr, cap->max_recv_sge); > + return -EINVAL; > + } > > - if ((u32)hr_qp->rq.wqe_cnt > hr_dev->caps.max_wqes) { > - ibdev_err(ibdev, "Failed to check RQ WQE count limit\n"); > - return -EINVAL; > - } > + max_cnt = max(cap->max_recv_wr, hr_dev->caps.min_wqes); > > - 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 <= HNS_ROCE_SGE_IN_WQE) > - 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); > + hr_qp->rq.wqe_cnt = roundup_pow_of_two(max_cnt); > + if ((u32)hr_qp->rq.wqe_cnt > hr_dev->caps.max_wqes) { > + ibdev_err(&hr_dev->ib_dev, "rq depth %u too large\n", > + cap->max_recv_wr); > + 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 <= HNS_ROCE_SGE_IN_WQE) > + 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); > + > cap->max_recv_wr = hr_qp->rq.wqe_cnt; > cap->max_recv_sge = hr_qp->rq.max_gs; > > @@ -614,29 +606,27 @@ static int set_extend_sge_param(struct hns_roce_dev *hr_dev, > static int set_kernel_sq_size(struct hns_roce_dev *hr_dev, > struct ib_qp_cap *cap, struct hns_roce_qp *hr_qp) > { > - struct device *dev = hr_dev->dev; > u32 page_size; > u32 max_cnt; > int size; > int ret; > > - if (cap->max_send_wr > hr_dev->caps.max_wqes || > + if (!cap->max_send_wr || 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"); > + ibdev_err(&hr_dev->ib_dev, > + "SQ WR or sge or inline data error!\n"); > return -EINVAL; > } > > hr_qp->sq.wqe_shift = ilog2(hr_dev->caps.max_sq_desc_sz); > > - 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; > + max_cnt = max(cap->max_send_wr, hr_dev->caps.min_wqes); > > 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"); > + ibdev_err(&hr_dev->ib_dev, > + "while setting kernel sq size, sq.wqe_cnt too large\n"); > return -EINVAL; > } > > @@ -649,7 +639,7 @@ static int set_kernel_sq_size(struct hns_roce_dev *hr_dev, > > ret = set_extend_sge_param(hr_dev, hr_qp); > if (ret) { > - dev_err(dev, "set extend sge parameters fail\n"); > + ibdev_err(&hr_dev->ib_dev, "set extend sge parameters fail\n"); > return ret; > } > > @@ -1373,11 +1363,10 @@ int hns_roce_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, > goto out; > > if (cur_state == new_state && cur_state == IB_QPS_RESET) { > - if (hr_dev->caps.min_wqes) { > + if (hr_dev->hw_rev == HNS_ROCE_HW_VER1) { > ret = -EPERM; > ibdev_err(&hr_dev->ib_dev, > - "cur_state=%d new_state=%d\n", cur_state, > - new_state); > + "RST2RST state is not supported\n"); > } else { > ret = 0; > } >
