diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c | 108 |
1 files changed, 107 insertions, 1 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c index 03532061d211..46de2f8ff024 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c @@ -1,6 +1,7 @@ /* Broadcom NetXtreme-C/E network driver. * * Copyright (c) 2014-2016 Broadcom Corporation + * Copyright (c) 2016-2017 Broadcom Limited * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -14,6 +15,7 @@ #include <linux/interrupt.h> #include <linux/pci.h> #include <linux/etherdevice.h> +#include <rdma/ib_verbs.h> #include "bnxt_hsi.h" #include "bnxt.h" #include "bnxt_dcb.h" @@ -241,6 +243,92 @@ static int bnxt_hwrm_queue_pfc_qcfg(struct bnxt *bp, struct ieee_pfc *pfc) return 0; } +static int bnxt_hwrm_set_dcbx_app(struct bnxt *bp, struct dcb_app *app, + bool add) +{ + struct hwrm_fw_set_structured_data_input set = {0}; + struct hwrm_fw_get_structured_data_input get = {0}; + struct hwrm_struct_data_dcbx_app *fw_app; + struct hwrm_struct_hdr *data; + dma_addr_t mapping; + size_t data_len; + int rc, n, i; + + if (bp->hwrm_spec_code < 0x10601) + return 0; + + n = IEEE_8021QAZ_MAX_TCS; + data_len = sizeof(*data) + sizeof(*fw_app) * n; + data = dma_alloc_coherent(&bp->pdev->dev, data_len, &mapping, + GFP_KERNEL); + if (!data) + return -ENOMEM; + + memset(data, 0, data_len); + bnxt_hwrm_cmd_hdr_init(bp, &get, HWRM_FW_GET_STRUCTURED_DATA, -1, -1); + get.dest_data_addr = cpu_to_le64(mapping); + get.structure_id = cpu_to_le16(STRUCT_HDR_STRUCT_ID_DCBX_APP); + get.subtype = cpu_to_le16(HWRM_STRUCT_DATA_SUBTYPE_HOST_OPERATIONAL); + get.count = 0; + rc = hwrm_send_message(bp, &get, sizeof(get), HWRM_CMD_TIMEOUT); + if (rc) + goto set_app_exit; + + fw_app = (struct hwrm_struct_data_dcbx_app *)(data + 1); + + if (data->struct_id != cpu_to_le16(STRUCT_HDR_STRUCT_ID_DCBX_APP)) { + rc = -ENODEV; + goto set_app_exit; + } + + n = data->count; + for (i = 0; i < n; i++, fw_app++) { + if (fw_app->protocol_id == cpu_to_be16(app->protocol) && + fw_app->protocol_selector == app->selector && + fw_app->priority == app->priority) { + if (add) + goto set_app_exit; + else + break; + } + } + if (add) { + /* append */ + n++; + fw_app->protocol_id = cpu_to_be16(app->protocol); + fw_app->protocol_selector = app->selector; + fw_app->priority = app->priority; + fw_app->valid = 1; + } else { + size_t len = 0; + + /* not found, nothing to delete */ + if (n == i) + goto set_app_exit; + + len = (n - 1 - i) * sizeof(*fw_app); + if (len) + memmove(fw_app, fw_app + 1, len); + n--; + memset(fw_app + n, 0, sizeof(*fw_app)); + } + data->count = n; + data->len = cpu_to_le16(sizeof(*fw_app) * n); + data->subtype = cpu_to_le16(HWRM_STRUCT_DATA_SUBTYPE_HOST_OPERATIONAL); + + bnxt_hwrm_cmd_hdr_init(bp, &set, HWRM_FW_SET_STRUCTURED_DATA, -1, -1); + set.src_data_addr = cpu_to_le64(mapping); + set.data_len = cpu_to_le16(sizeof(*data) + sizeof(*fw_app) * n); + set.hdr_cnt = 1; + rc = hwrm_send_message(bp, &set, sizeof(set), HWRM_CMD_TIMEOUT); + if (rc) + rc = -EIO; + +set_app_exit: + dma_free_coherent(&bp->pdev->dev, data_len, data, mapping); + return rc; +} + static int bnxt_ets_validate(struct bnxt *bp, struct ieee_ets *ets, u8 *tc) { int total_ets_bw = 0; @@ -417,6 +505,15 @@ static int bnxt_dcbnl_ieee_setapp(struct net_device *dev, struct dcb_app *app) return -EINVAL; rc = dcb_ieee_setapp(dev, app); + if (rc) + return rc; + + if ((app->selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE && + app->protocol == ETH_P_IBOE) || + (app->selector == IEEE_8021QAZ_APP_SEL_DGRAM && + app->protocol == ROCE_V2_UDP_DPORT)) + rc = bnxt_hwrm_set_dcbx_app(bp, app, true); + return rc; } @@ -425,10 +522,19 @@ static int bnxt_dcbnl_ieee_delapp(struct net_device *dev, struct dcb_app *app) struct bnxt *bp = netdev_priv(dev); int rc; - if (!(bp->dcbx_cap & DCB_CAP_DCBX_VER_IEEE)) + if (!(bp->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) || + !(bp->dcbx_cap & DCB_CAP_DCBX_HOST)) return -EINVAL; rc = dcb_ieee_delapp(dev, app); + if (rc) + return rc; + if ((app->selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE && + app->protocol == ETH_P_IBOE) || + (app->selector == IEEE_8021QAZ_APP_SEL_DGRAM && + app->protocol == ROCE_V2_UDP_DPORT)) + rc = bnxt_hwrm_set_dcbx_app(bp, app, false); + return rc; } |