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RDMA/bnxt_re: Report supported value to IB stack in query_device
- Report supported value for max_mr_size to IB stack in query_device. Also, check and log if MR size requested by application in reg_user_mr() is greater than value currently supported by driver. - Report only 4K page size support for now - Fix Max_QP value returned by ibv_devinfo -vv. In case of PF, FW reserves 129 QPs for creating QP1s of VFs and PF. So the max_qp value reported by FW for PF doesn'tt include the QP1. Fixing this issue by adding 1 with the value reported by FW. Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
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58d4a671d0
3 changed files with 12 additions and 4 deletions
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@ -51,6 +51,8 @@
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#define BNXT_RE_PAGE_SIZE_8M BIT(23)
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#define BNXT_RE_PAGE_SIZE_1G BIT(30)
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#define BNXT_RE_MAX_MR_SIZE BIT(30)
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#define BNXT_RE_MAX_QPC_COUNT (64 * 1024)
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#define BNXT_RE_MAX_MRW_COUNT (64 * 1024)
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#define BNXT_RE_MAX_SRQC_COUNT (64 * 1024)
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@ -145,10 +145,8 @@ int bnxt_re_query_device(struct ib_device *ibdev,
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ib_attr->fw_ver = (u64)(unsigned long)(dev_attr->fw_ver);
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bnxt_qplib_get_guid(rdev->netdev->dev_addr,
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(u8 *)&ib_attr->sys_image_guid);
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ib_attr->max_mr_size = ~0ull;
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ib_attr->page_size_cap = BNXT_RE_PAGE_SIZE_4K | BNXT_RE_PAGE_SIZE_8K |
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BNXT_RE_PAGE_SIZE_64K | BNXT_RE_PAGE_SIZE_2M |
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BNXT_RE_PAGE_SIZE_8M | BNXT_RE_PAGE_SIZE_1G;
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ib_attr->max_mr_size = BNXT_RE_MAX_MR_SIZE;
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ib_attr->page_size_cap = BNXT_RE_PAGE_SIZE_4K;
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ib_attr->vendor_id = rdev->en_dev->pdev->vendor;
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ib_attr->vendor_part_id = rdev->en_dev->pdev->device;
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@ -3229,6 +3227,12 @@ struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *ib_pd, u64 start, u64 length,
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struct scatterlist *sg;
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int entry;
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if (length > BNXT_RE_MAX_MR_SIZE) {
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dev_err(rdev_to_dev(rdev), "MR Size: %lld > Max supported:%ld\n",
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length, BNXT_RE_MAX_MR_SIZE);
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return ERR_PTR(-ENOMEM);
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}
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mr = kzalloc(sizeof(*mr), GFP_KERNEL);
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if (!mr)
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return ERR_PTR(-ENOMEM);
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@ -81,6 +81,8 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
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/* Extract the context from the side buffer */
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attr->max_qp = le32_to_cpu(sb->max_qp);
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/* max_qp value reported by FW for PF doesn't include the QP1 for PF */
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attr->max_qp += 1;
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attr->max_qp_rd_atom =
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sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
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BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom;
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