diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c')
-rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c | 89 |
1 files changed, 85 insertions, 4 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c index d5bc72cecde3..ddc98c359488 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c @@ -385,6 +385,61 @@ set_app_exit: return rc; } +static int bnxt_hwrm_queue_dscp_qcaps(struct bnxt *bp) +{ + struct hwrm_queue_dscp_qcaps_output *resp = bp->hwrm_cmd_resp_addr; + struct hwrm_queue_dscp_qcaps_input req = {0}; + int rc; + + if (bp->hwrm_spec_code < 0x10800 || BNXT_VF(bp)) + return 0; + + bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_DSCP_QCAPS, -1, -1); + mutex_lock(&bp->hwrm_cmd_lock); + rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); + if (!rc) { + bp->max_dscp_value = (1 << resp->num_dscp_bits) - 1; + if (bp->max_dscp_value < 0x3f) + bp->max_dscp_value = 0; + } + + mutex_unlock(&bp->hwrm_cmd_lock); + return rc; +} + +static int bnxt_hwrm_queue_dscp2pri_cfg(struct bnxt *bp, struct dcb_app *app, + bool add) +{ + struct hwrm_queue_dscp2pri_cfg_input req = {0}; + struct bnxt_dscp2pri_entry *dscp2pri; + dma_addr_t mapping; + int rc; + + if (bp->hwrm_spec_code < 0x10800) + return 0; + + bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_DSCP2PRI_CFG, -1, -1); + dscp2pri = dma_alloc_coherent(&bp->pdev->dev, sizeof(*dscp2pri), + &mapping, GFP_KERNEL); + if (!dscp2pri) + return -ENOMEM; + + req.src_data_addr = cpu_to_le64(mapping); + dscp2pri->dscp = app->protocol; + if (add) + dscp2pri->mask = 0x3f; + else + dscp2pri->mask = 0; + dscp2pri->pri = app->priority; + req.entry_cnt = cpu_to_le16(1); + rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); + if (rc) + rc = -EIO; + dma_free_coherent(&bp->pdev->dev, sizeof(*dscp2pri), dscp2pri, + mapping); + return rc; +} + static int bnxt_ets_validate(struct bnxt *bp, struct ieee_ets *ets, u8 *tc) { int total_ets_bw = 0; @@ -551,15 +606,30 @@ static int bnxt_dcbnl_ieee_setpfc(struct net_device *dev, struct ieee_pfc *pfc) return rc; } +static int bnxt_dcbnl_ieee_dscp_app_prep(struct bnxt *bp, struct dcb_app *app) +{ + if (app->selector == IEEE_8021QAZ_APP_SEL_DSCP) { + if (!bp->max_dscp_value) + return -ENOTSUPP; + if (app->protocol > bp->max_dscp_value) + return -EINVAL; + } + return 0; +} + static int bnxt_dcbnl_ieee_setapp(struct net_device *dev, struct dcb_app *app) { struct bnxt *bp = netdev_priv(dev); - int rc = -EINVAL; + int rc; if (!(bp->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) || !(bp->dcbx_cap & DCB_CAP_DCBX_HOST)) return -EINVAL; + rc = bnxt_dcbnl_ieee_dscp_app_prep(bp, app); + if (rc) + return rc; + rc = dcb_ieee_setapp(dev, app); if (rc) return rc; @@ -570,6 +640,9 @@ static int bnxt_dcbnl_ieee_setapp(struct net_device *dev, struct dcb_app *app) app->protocol == ROCE_V2_UDP_DPORT)) rc = bnxt_hwrm_set_dcbx_app(bp, app, true); + if (app->selector == IEEE_8021QAZ_APP_SEL_DSCP) + rc = bnxt_hwrm_queue_dscp2pri_cfg(bp, app, true); + return rc; } @@ -582,6 +655,10 @@ static int bnxt_dcbnl_ieee_delapp(struct net_device *dev, struct dcb_app *app) !(bp->dcbx_cap & DCB_CAP_DCBX_HOST)) return -EINVAL; + rc = bnxt_dcbnl_ieee_dscp_app_prep(bp, app); + if (rc) + return rc; + rc = dcb_ieee_delapp(dev, app); if (rc) return rc; @@ -591,6 +668,9 @@ static int bnxt_dcbnl_ieee_delapp(struct net_device *dev, struct dcb_app *app) app->protocol == ROCE_V2_UDP_DPORT)) rc = bnxt_hwrm_set_dcbx_app(bp, app, false); + if (app->selector == IEEE_8021QAZ_APP_SEL_DSCP) + rc = bnxt_hwrm_queue_dscp2pri_cfg(bp, app, false); + return rc; } @@ -610,7 +690,7 @@ static u8 bnxt_dcbnl_setdcbx(struct net_device *dev, u8 mode) return 1; if (mode & DCB_CAP_DCBX_HOST) { - if (BNXT_VF(bp) || (bp->flags & BNXT_FLAG_FW_LLDP_AGENT)) + if (BNXT_VF(bp) || (bp->fw_cap & BNXT_FW_CAP_LLDP_AGENT)) return 1; /* only support IEEE */ @@ -642,10 +722,11 @@ void bnxt_dcb_init(struct bnxt *bp) if (bp->hwrm_spec_code < 0x10501) return; + bnxt_hwrm_queue_dscp_qcaps(bp); bp->dcbx_cap = DCB_CAP_DCBX_VER_IEEE; - if (BNXT_PF(bp) && !(bp->flags & BNXT_FLAG_FW_LLDP_AGENT)) + if (BNXT_PF(bp) && !(bp->fw_cap & BNXT_FW_CAP_LLDP_AGENT)) bp->dcbx_cap |= DCB_CAP_DCBX_HOST; - else if (bp->flags & BNXT_FLAG_FW_DCBX_AGENT) + else if (bp->fw_cap & BNXT_FW_CAP_DCBX_AGENT) bp->dcbx_cap |= DCB_CAP_DCBX_LLD_MANAGED; bp->dev->dcbnl_ops = &dcbnl_ops; } |