diff options
| author | Bart Van Assche <bart.vanassche@wdc.com> | 2018-07-18 18:25:14 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-07-31 04:00:20 +0200 |
| commit | f696bf6d64b195b83ca1bdb7cd33c999c9dcf514 (patch) | |
| tree | c73dddbbb273847bc59b8529da1617799ab7e72f /drivers/infiniband/hw/cxgb4 | |
| parent | IB/iser: Inline two work request conversion functions (diff) | |
| download | linux-f696bf6d64b195b83ca1bdb7cd33c999c9dcf514.tar.xz linux-f696bf6d64b195b83ca1bdb7cd33c999c9dcf514.zip | |
RDMA: Constify the argument of the work request conversion functions
When posting a send work request, the work request that is posted is not
modified by any of the RDMA drivers. Make this explicit by constifying
most ib_send_wr pointers in RDMA transport drivers.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/cxgb4')
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/qp.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index 08dc555942af..dbd697b113ec 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -410,7 +410,7 @@ free_sq_qid: } static int build_immd(struct t4_sq *sq, struct fw_ri_immd *immdp, - struct ib_send_wr *wr, int max, u32 *plenp) + const struct ib_send_wr *wr, int max, u32 *plenp) { u8 *dstp, *srcp; u32 plen = 0; @@ -480,7 +480,7 @@ static int build_isgl(__be64 *queue_start, __be64 *queue_end, } static int build_rdma_send(struct t4_sq *sq, union t4_wr *wqe, - struct ib_send_wr *wr, u8 *len16) + const struct ib_send_wr *wr, u8 *len16) { u32 plen; int size; @@ -547,7 +547,7 @@ static int build_rdma_send(struct t4_sq *sq, union t4_wr *wqe, } static int build_rdma_write(struct t4_sq *sq, union t4_wr *wqe, - struct ib_send_wr *wr, u8 *len16) + const struct ib_send_wr *wr, u8 *len16) { u32 plen; int size; @@ -589,7 +589,8 @@ static int build_rdma_write(struct t4_sq *sq, union t4_wr *wqe, return 0; } -static int build_rdma_read(union t4_wr *wqe, struct ib_send_wr *wr, u8 *len16) +static int build_rdma_read(union t4_wr *wqe, const struct ib_send_wr *wr, + u8 *len16) { if (wr->num_sge > 1) return -EINVAL; @@ -648,7 +649,7 @@ static int build_srq_recv(union t4_recv_wr *wqe, struct ib_recv_wr *wr, } static void build_tpte_memreg(struct fw_ri_fr_nsmr_tpte_wr *fr, - struct ib_reg_wr *wr, struct c4iw_mr *mhp, + const struct ib_reg_wr *wr, struct c4iw_mr *mhp, u8 *len16) { __be64 *p = (__be64 *)fr->pbl; @@ -680,8 +681,8 @@ static void build_tpte_memreg(struct fw_ri_fr_nsmr_tpte_wr *fr, } static int build_memreg(struct t4_sq *sq, union t4_wr *wqe, - struct ib_reg_wr *wr, struct c4iw_mr *mhp, u8 *len16, - bool dsgl_supported) + const struct ib_reg_wr *wr, struct c4iw_mr *mhp, + u8 *len16, bool dsgl_supported) { struct fw_ri_immd *imdp; __be64 *p; @@ -743,7 +744,8 @@ static int build_memreg(struct t4_sq *sq, union t4_wr *wqe, return 0; } -static int build_inv_stag(union t4_wr *wqe, struct ib_send_wr *wr, u8 *len16) +static int build_inv_stag(union t4_wr *wqe, const struct ib_send_wr *wr, + u8 *len16) { wqe->inv.stag_inv = cpu_to_be32(wr->ex.invalidate_rkey); wqe->inv.r2 = 0; @@ -862,7 +864,8 @@ static int ib_to_fw_opcode(int ib_opcode) return opcode; } -static int complete_sq_drain_wr(struct c4iw_qp *qhp, struct ib_send_wr *wr) +static int complete_sq_drain_wr(struct c4iw_qp *qhp, + const struct ib_send_wr *wr) { struct t4_cqe cqe = {}; struct c4iw_cq *schp; |