RDMA/bnxt_re: Update ABI to pass wqe-mode to user space
Changing ucontext ABI response structure to pass wqe_mode to user library. A flag in comp_mask has been set to indicate presence of wqe_mode. Moved wqe-mode ABI to uapi/rdma/bnxt_re-abi.h Link: https://lore.kernel.org/r/20210616202817.1185276-1-devesh.sharma@broadcom.com Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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@ -3882,6 +3882,9 @@ int bnxt_re_alloc_ucontext(struct ib_ucontext *ctx, struct ib_udata *udata)
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resp.max_cqd = dev_attr->max_cq_wqes;
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resp.rsvd = 0;
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resp.comp_mask |= BNXT_RE_UCNTX_CMASK_HAVE_MODE;
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resp.mode = rdev->chip_ctx->modes.wqe_mode;
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rc = ib_copy_to_udata(udata, &resp, min(udata->outlen, sizeof(resp)));
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if (rc) {
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ibdev_err(ibdev, "Failed to copy user context");
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@ -39,6 +39,8 @@
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#ifndef __BNXT_QPLIB_FP_H__
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#define __BNXT_QPLIB_FP_H__
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#include <rdma/bnxt_re-abi.h>
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/* Few helper structures temporarily defined here
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* should get rid of these when roce_hsi.h is updated
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* in original code base
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@ -45,12 +45,6 @@ extern const struct bnxt_qplib_gid bnxt_qplib_gid_zero;
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#define CHIP_NUM_57504 0x1751
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#define CHIP_NUM_57502 0x1752
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enum bnxt_qplib_wqe_mode {
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BNXT_QPLIB_WQE_MODE_STATIC = 0x00,
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BNXT_QPLIB_WQE_MODE_VARIABLE = 0x01,
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BNXT_QPLIB_WQE_MODE_INVALID = 0x02
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};
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struct bnxt_qplib_drv_modes {
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u8 wqe_mode;
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/* Other modes to follow here */
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@ -49,7 +49,14 @@
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#define BNXT_RE_CHIP_ID0_CHIP_MET_SFT 0x18
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enum {
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BNXT_RE_UCNTX_CMASK_HAVE_CCTX = 0x1ULL
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BNXT_RE_UCNTX_CMASK_HAVE_CCTX = 0x1ULL,
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BNXT_RE_UCNTX_CMASK_HAVE_MODE = 0x02ULL,
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};
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enum bnxt_re_wqe_mode {
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BNXT_QPLIB_WQE_MODE_STATIC = 0x00,
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BNXT_QPLIB_WQE_MODE_VARIABLE = 0x01,
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BNXT_QPLIB_WQE_MODE_INVALID = 0x02,
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};
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struct bnxt_re_uctx_resp {
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@ -62,6 +69,8 @@ struct bnxt_re_uctx_resp {
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__aligned_u64 comp_mask;
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__u32 chip_id0;
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__u32 chip_id1;
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__u32 mode;
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__u32 rsvd1; /* padding */
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};
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/*
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