diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnge/bnge_hwrm.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnge/bnge_hwrm.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm.c b/drivers/net/ethernet/broadcom/bnge/bnge_hwrm.c index 0f971af24142..c3087e5cd875 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_hwrm.c @@ -98,6 +98,46 @@ void bnge_hwrm_req_alloc_flags(struct bnge_dev *bd, void *req, gfp_t gfp) ctx->gfp = gfp; } +int bnge_hwrm_req_replace(struct bnge_dev *bd, void *req, void *new_req, + u32 len) +{ + struct bnge_hwrm_ctx *ctx = __hwrm_ctx_get(bd, req); + struct input *internal_req = req; + u16 req_type; + + if (!ctx) + return -EINVAL; + + if (len > BNGE_HWRM_CTX_OFFSET) + return -E2BIG; + + /* free any existing slices */ + ctx->allocated = BNGE_HWRM_DMA_SIZE - BNGE_HWRM_CTX_OFFSET; + if (ctx->slice_addr) { + dma_free_coherent(bd->dev, ctx->slice_size, + ctx->slice_addr, ctx->slice_handle); + ctx->slice_addr = NULL; + } + ctx->gfp = GFP_KERNEL; + + if ((bd->fw_cap & BNGE_FW_CAP_SHORT_CMD) || len > BNGE_HWRM_MAX_REQ_LEN) { + memcpy(internal_req, new_req, len); + } else { + internal_req->req_type = ((struct input *)new_req)->req_type; + ctx->req = new_req; + } + + ctx->req_len = len; + ctx->req->resp_addr = cpu_to_le64(ctx->dma_handle + + BNGE_HWRM_RESP_OFFSET); + + /* update sentinel for potentially new request type */ + req_type = le16_to_cpu(internal_req->req_type); + ctx->sentinel = bnge_cal_sentinel(ctx, req_type); + + return 0; +} + void bnge_hwrm_req_flags(struct bnge_dev *bd, void *req, enum bnge_hwrm_ctx_flags flags) { |