diff options
| author | Chien Tin Tung <chien.tin.tung@intel.com> | 2016-12-21 17:53:46 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-12-22 19:36:12 +0300 |
| commit | 61f51b7b20f631ef8fe744bc0412d4eb5194b6a9 (patch) | |
| tree | 0cd2a30e597dee74e74bd685af593a02f53b77ec /drivers/infiniband/hw/i40iw/i40iw_ctrl.c | |
| parent | fba332b079029c2f4f7e84c1c1cd8e3867310c90 (diff) | |
| download | linux-61f51b7b20f631ef8fe744bc0412d4eb5194b6a9.tar.xz | |
i40iw: Set 128B as the only supported RQ WQE size
RQ WQE size other than 128B is not supported. Correct
RQ size calculation to use 128B only.
Since this breaks ABI, add additional code to
provide compatibility with v4 user provider, libi40iw.
Signed-off-by: Chien Tin Tung <chien.tin.tung@intel.com>
Signed-off-by: Henry Orosco <henry.orosco@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/i40iw/i40iw_ctrl.c')
| -rw-r--r-- | drivers/infiniband/hw/i40iw/i40iw_ctrl.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c index 392f78384a60..98923a8cf86d 100644 --- a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c +++ b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c @@ -358,13 +358,16 @@ void i40iw_qp_add_qos(struct i40iw_sc_qp *qp) * @dev: sc device struct * @pd: sc pd ptr * @pd_id: pd_id for allocated pd + * @abi_ver: ABI version from user context, -1 if not valid */ static void i40iw_sc_pd_init(struct i40iw_sc_dev *dev, struct i40iw_sc_pd *pd, - u16 pd_id) + u16 pd_id, + int abi_ver) { pd->size = sizeof(*pd); pd->pd_id = pd_id; + pd->abi_ver = abi_ver; pd->dev = dev; } @@ -2252,6 +2255,7 @@ static enum i40iw_status_code i40iw_sc_qp_init(struct i40iw_sc_qp *qp, offset); info->qp_uk_init_info.wqe_alloc_reg = wqe_alloc_reg; + info->qp_uk_init_info.abi_ver = qp->pd->abi_ver; ret_code = i40iw_qp_uk_init(&qp->qp_uk, &info->qp_uk_init_info); if (ret_code) return ret_code; @@ -2270,10 +2274,21 @@ static enum i40iw_status_code i40iw_sc_qp_init(struct i40iw_sc_qp *qp, false); i40iw_debug(qp->dev, I40IW_DEBUG_WQE, "%s: hw_sq_size[%04d] sq_ring.size[%04d]\n", __func__, qp->hw_sq_size, qp->qp_uk.sq_ring.size); - ret_code = i40iw_fragcnt_to_wqesize_rq(qp->qp_uk.max_rq_frag_cnt, - &wqe_size); - if (ret_code) - return ret_code; + + switch (qp->pd->abi_ver) { + case 4: + ret_code = i40iw_fragcnt_to_wqesize_rq(qp->qp_uk.max_rq_frag_cnt, + &wqe_size); + if (ret_code) + return ret_code; + break; + case 5: /* fallthrough until next ABI version */ + default: + if (qp->qp_uk.max_rq_frag_cnt > I40IW_MAX_WQ_FRAGMENT_COUNT) + return I40IW_ERR_INVALID_FRAG_COUNT; + wqe_size = I40IW_MAX_WQE_SIZE_RQ; + break; + } qp->hw_rq_size = i40iw_get_encoded_wqe_size(qp->qp_uk.rq_size * (wqe_size / I40IW_QP_WQE_MIN_SIZE), false); i40iw_debug(qp->dev, I40IW_DEBUG_WQE, |