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790 lines
18 KiB
790 lines
18 KiB
/* Broadcom NetXtreme-C/E network driver. |
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* |
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* Copyright (c) 2014-2016 Broadcom Corporation |
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* Copyright (c) 2016-2017 Broadcom Limited |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation. |
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*/ |
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|
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#include <linux/netdevice.h> |
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#include <linux/types.h> |
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#include <linux/errno.h> |
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#include <linux/rtnetlink.h> |
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#include <linux/interrupt.h> |
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#include <linux/pci.h> |
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#include <linux/etherdevice.h> |
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#include <rdma/ib_verbs.h> |
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#include "bnxt_hsi.h" |
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#include "bnxt.h" |
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#include "bnxt_hwrm.h" |
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#include "bnxt_dcb.h" |
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|
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#ifdef CONFIG_BNXT_DCB |
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static int bnxt_queue_to_tc(struct bnxt *bp, u8 queue_id) |
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{ |
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int i, j; |
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for (i = 0; i < bp->max_tc; i++) { |
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if (bp->q_info[i].queue_id == queue_id) { |
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for (j = 0; j < bp->max_tc; j++) { |
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if (bp->tc_to_qidx[j] == i) |
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return j; |
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} |
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} |
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} |
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return -EINVAL; |
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} |
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static int bnxt_hwrm_queue_pri2cos_cfg(struct bnxt *bp, struct ieee_ets *ets) |
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{ |
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struct hwrm_queue_pri2cos_cfg_input *req; |
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u8 *pri2cos; |
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int rc, i; |
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rc = hwrm_req_init(bp, req, HWRM_QUEUE_PRI2COS_CFG); |
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if (rc) |
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return rc; |
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req->flags = cpu_to_le32(QUEUE_PRI2COS_CFG_REQ_FLAGS_PATH_BIDIR | |
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QUEUE_PRI2COS_CFG_REQ_FLAGS_IVLAN); |
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pri2cos = &req->pri0_cos_queue_id; |
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for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { |
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u8 qidx; |
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req->enables |= cpu_to_le32( |
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QUEUE_PRI2COS_CFG_REQ_ENABLES_PRI0_COS_QUEUE_ID << i); |
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qidx = bp->tc_to_qidx[ets->prio_tc[i]]; |
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pri2cos[i] = bp->q_info[qidx].queue_id; |
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} |
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return hwrm_req_send(bp, req); |
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} |
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static int bnxt_hwrm_queue_pri2cos_qcfg(struct bnxt *bp, struct ieee_ets *ets) |
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{ |
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struct hwrm_queue_pri2cos_qcfg_output *resp; |
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struct hwrm_queue_pri2cos_qcfg_input *req; |
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int rc; |
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rc = hwrm_req_init(bp, req, HWRM_QUEUE_PRI2COS_QCFG); |
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if (rc) |
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return rc; |
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req->flags = cpu_to_le32(QUEUE_PRI2COS_QCFG_REQ_FLAGS_IVLAN); |
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resp = hwrm_req_hold(bp, req); |
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rc = hwrm_req_send(bp, req); |
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if (!rc) { |
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u8 *pri2cos = &resp->pri0_cos_queue_id; |
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int i; |
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for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { |
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u8 queue_id = pri2cos[i]; |
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int tc; |
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tc = bnxt_queue_to_tc(bp, queue_id); |
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if (tc >= 0) |
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ets->prio_tc[i] = tc; |
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} |
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} |
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hwrm_req_drop(bp, req); |
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return rc; |
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} |
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static int bnxt_hwrm_queue_cos2bw_cfg(struct bnxt *bp, struct ieee_ets *ets, |
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u8 max_tc) |
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{ |
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struct hwrm_queue_cos2bw_cfg_input *req; |
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struct bnxt_cos2bw_cfg cos2bw; |
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void *data; |
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int rc, i; |
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rc = hwrm_req_init(bp, req, HWRM_QUEUE_COS2BW_CFG); |
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if (rc) |
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return rc; |
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for (i = 0; i < max_tc; i++) { |
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u8 qidx = bp->tc_to_qidx[i]; |
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req->enables |= cpu_to_le32( |
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QUEUE_COS2BW_CFG_REQ_ENABLES_COS_QUEUE_ID0_VALID << |
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qidx); |
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memset(&cos2bw, 0, sizeof(cos2bw)); |
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cos2bw.queue_id = bp->q_info[qidx].queue_id; |
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if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_STRICT) { |
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cos2bw.tsa = |
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QUEUE_COS2BW_QCFG_RESP_QUEUE_ID0_TSA_ASSIGN_SP; |
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cos2bw.pri_lvl = i; |
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} else { |
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cos2bw.tsa = |
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QUEUE_COS2BW_QCFG_RESP_QUEUE_ID0_TSA_ASSIGN_ETS; |
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cos2bw.bw_weight = ets->tc_tx_bw[i]; |
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/* older firmware requires min_bw to be set to the |
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* same weight value in percent. |
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*/ |
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cos2bw.min_bw = |
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cpu_to_le32((ets->tc_tx_bw[i] * 100) | |
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BW_VALUE_UNIT_PERCENT1_100); |
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} |
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data = &req->unused_0 + qidx * (sizeof(cos2bw) - 4); |
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memcpy(data, &cos2bw.queue_id, sizeof(cos2bw) - 4); |
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if (qidx == 0) { |
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req->queue_id0 = cos2bw.queue_id; |
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req->unused_0 = 0; |
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} |
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} |
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return hwrm_req_send(bp, req); |
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} |
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static int bnxt_hwrm_queue_cos2bw_qcfg(struct bnxt *bp, struct ieee_ets *ets) |
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{ |
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struct hwrm_queue_cos2bw_qcfg_output *resp; |
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struct hwrm_queue_cos2bw_qcfg_input *req; |
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struct bnxt_cos2bw_cfg cos2bw; |
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void *data; |
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int rc, i; |
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rc = hwrm_req_init(bp, req, HWRM_QUEUE_COS2BW_QCFG); |
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if (rc) |
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return rc; |
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resp = hwrm_req_hold(bp, req); |
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rc = hwrm_req_send(bp, req); |
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if (rc) { |
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hwrm_req_drop(bp, req); |
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return rc; |
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} |
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data = &resp->queue_id0 + offsetof(struct bnxt_cos2bw_cfg, queue_id); |
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for (i = 0; i < bp->max_tc; i++, data += sizeof(cos2bw) - 4) { |
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int tc; |
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memcpy(&cos2bw.queue_id, data, sizeof(cos2bw) - 4); |
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if (i == 0) |
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cos2bw.queue_id = resp->queue_id0; |
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tc = bnxt_queue_to_tc(bp, cos2bw.queue_id); |
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if (tc < 0) |
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continue; |
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if (cos2bw.tsa == |
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QUEUE_COS2BW_QCFG_RESP_QUEUE_ID0_TSA_ASSIGN_SP) { |
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ets->tc_tsa[tc] = IEEE_8021QAZ_TSA_STRICT; |
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} else { |
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ets->tc_tsa[tc] = IEEE_8021QAZ_TSA_ETS; |
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ets->tc_tx_bw[tc] = cos2bw.bw_weight; |
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} |
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} |
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hwrm_req_drop(bp, req); |
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return 0; |
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} |
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static int bnxt_queue_remap(struct bnxt *bp, unsigned int lltc_mask) |
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{ |
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unsigned long qmap = 0; |
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int max = bp->max_tc; |
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int i, j, rc; |
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|
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/* Assign lossless TCs first */ |
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for (i = 0, j = 0; i < max; ) { |
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if (lltc_mask & (1 << i)) { |
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if (BNXT_LLQ(bp->q_info[j].queue_profile)) { |
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bp->tc_to_qidx[i] = j; |
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__set_bit(j, &qmap); |
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i++; |
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} |
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j++; |
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continue; |
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} |
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i++; |
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} |
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for (i = 0, j = 0; i < max; i++) { |
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if (lltc_mask & (1 << i)) |
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continue; |
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j = find_next_zero_bit(&qmap, max, j); |
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bp->tc_to_qidx[i] = j; |
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__set_bit(j, &qmap); |
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j++; |
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} |
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if (netif_running(bp->dev)) { |
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bnxt_close_nic(bp, false, false); |
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rc = bnxt_open_nic(bp, false, false); |
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if (rc) { |
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netdev_warn(bp->dev, "failed to open NIC, rc = %d\n", rc); |
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return rc; |
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} |
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} |
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if (bp->ieee_ets) { |
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int tc = netdev_get_num_tc(bp->dev); |
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if (!tc) |
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tc = 1; |
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rc = bnxt_hwrm_queue_cos2bw_cfg(bp, bp->ieee_ets, tc); |
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if (rc) { |
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netdev_warn(bp->dev, "failed to config BW, rc = %d\n", rc); |
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return rc; |
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} |
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rc = bnxt_hwrm_queue_pri2cos_cfg(bp, bp->ieee_ets); |
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if (rc) { |
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netdev_warn(bp->dev, "failed to config prio, rc = %d\n", rc); |
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return rc; |
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} |
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} |
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return 0; |
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} |
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static int bnxt_hwrm_queue_pfc_cfg(struct bnxt *bp, struct ieee_pfc *pfc) |
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{ |
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struct hwrm_queue_pfcenable_cfg_input *req; |
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struct ieee_ets *my_ets = bp->ieee_ets; |
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unsigned int tc_mask = 0, pri_mask = 0; |
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u8 i, pri, lltc_count = 0; |
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bool need_q_remap = false; |
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int rc; |
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if (!my_ets) |
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return -EINVAL; |
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for (i = 0; i < bp->max_tc; i++) { |
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for (pri = 0; pri < IEEE_8021QAZ_MAX_TCS; pri++) { |
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if ((pfc->pfc_en & (1 << pri)) && |
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(my_ets->prio_tc[pri] == i)) { |
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pri_mask |= 1 << pri; |
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tc_mask |= 1 << i; |
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} |
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} |
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if (tc_mask & (1 << i)) |
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lltc_count++; |
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} |
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if (lltc_count > bp->max_lltc) |
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return -EINVAL; |
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for (i = 0; i < bp->max_tc; i++) { |
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if (tc_mask & (1 << i)) { |
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u8 qidx = bp->tc_to_qidx[i]; |
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if (!BNXT_LLQ(bp->q_info[qidx].queue_profile)) { |
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need_q_remap = true; |
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break; |
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} |
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} |
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} |
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if (need_q_remap) |
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bnxt_queue_remap(bp, tc_mask); |
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rc = hwrm_req_init(bp, req, HWRM_QUEUE_PFCENABLE_CFG); |
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if (rc) |
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return rc; |
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req->flags = cpu_to_le32(pri_mask); |
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return hwrm_req_send(bp, req); |
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} |
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static int bnxt_hwrm_queue_pfc_qcfg(struct bnxt *bp, struct ieee_pfc *pfc) |
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{ |
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struct hwrm_queue_pfcenable_qcfg_output *resp; |
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struct hwrm_queue_pfcenable_qcfg_input *req; |
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u8 pri_mask; |
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int rc; |
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rc = hwrm_req_init(bp, req, HWRM_QUEUE_PFCENABLE_QCFG); |
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if (rc) |
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return rc; |
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resp = hwrm_req_hold(bp, req); |
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rc = hwrm_req_send(bp, req); |
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if (rc) { |
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hwrm_req_drop(bp, req); |
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return rc; |
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} |
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pri_mask = le32_to_cpu(resp->flags); |
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pfc->pfc_en = pri_mask; |
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hwrm_req_drop(bp, req); |
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return 0; |
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} |
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static int bnxt_hwrm_set_dcbx_app(struct bnxt *bp, struct dcb_app *app, |
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bool add) |
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{ |
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struct hwrm_fw_set_structured_data_input *set; |
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struct hwrm_fw_get_structured_data_input *get; |
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struct hwrm_struct_data_dcbx_app *fw_app; |
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struct hwrm_struct_hdr *data; |
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dma_addr_t mapping; |
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size_t data_len; |
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int rc, n, i; |
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if (bp->hwrm_spec_code < 0x10601) |
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return 0; |
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rc = hwrm_req_init(bp, get, HWRM_FW_GET_STRUCTURED_DATA); |
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if (rc) |
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return rc; |
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hwrm_req_hold(bp, get); |
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hwrm_req_alloc_flags(bp, get, GFP_KERNEL | __GFP_ZERO); |
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n = IEEE_8021QAZ_MAX_TCS; |
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data_len = sizeof(*data) + sizeof(*fw_app) * n; |
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data = hwrm_req_dma_slice(bp, get, data_len, &mapping); |
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if (!data) { |
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rc = -ENOMEM; |
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goto set_app_exit; |
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} |
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get->dest_data_addr = cpu_to_le64(mapping); |
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get->structure_id = cpu_to_le16(STRUCT_HDR_STRUCT_ID_DCBX_APP); |
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get->subtype = cpu_to_le16(HWRM_STRUCT_DATA_SUBTYPE_HOST_OPERATIONAL); |
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get->count = 0; |
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rc = hwrm_req_send(bp, get); |
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if (rc) |
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goto set_app_exit; |
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fw_app = (struct hwrm_struct_data_dcbx_app *)(data + 1); |
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if (data->struct_id != cpu_to_le16(STRUCT_HDR_STRUCT_ID_DCBX_APP)) { |
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rc = -ENODEV; |
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goto set_app_exit; |
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} |
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n = data->count; |
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for (i = 0; i < n; i++, fw_app++) { |
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if (fw_app->protocol_id == cpu_to_be16(app->protocol) && |
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fw_app->protocol_selector == app->selector && |
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fw_app->priority == app->priority) { |
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if (add) |
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goto set_app_exit; |
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else |
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break; |
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} |
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} |
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if (add) { |
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/* append */ |
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n++; |
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fw_app->protocol_id = cpu_to_be16(app->protocol); |
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fw_app->protocol_selector = app->selector; |
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fw_app->priority = app->priority; |
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fw_app->valid = 1; |
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} else { |
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size_t len = 0; |
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|
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/* not found, nothing to delete */ |
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if (n == i) |
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goto set_app_exit; |
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len = (n - 1 - i) * sizeof(*fw_app); |
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if (len) |
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memmove(fw_app, fw_app + 1, len); |
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n--; |
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memset(fw_app + n, 0, sizeof(*fw_app)); |
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} |
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data->count = n; |
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data->len = cpu_to_le16(sizeof(*fw_app) * n); |
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data->subtype = cpu_to_le16(HWRM_STRUCT_DATA_SUBTYPE_HOST_OPERATIONAL); |
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rc = hwrm_req_init(bp, set, HWRM_FW_SET_STRUCTURED_DATA); |
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if (rc) |
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goto set_app_exit; |
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set->src_data_addr = cpu_to_le64(mapping); |
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set->data_len = cpu_to_le16(sizeof(*data) + sizeof(*fw_app) * n); |
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set->hdr_cnt = 1; |
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rc = hwrm_req_send(bp, set); |
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set_app_exit: |
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hwrm_req_drop(bp, get); /* dropping get request and associated slice */ |
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return rc; |
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} |
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static int bnxt_hwrm_queue_dscp_qcaps(struct bnxt *bp) |
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{ |
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struct hwrm_queue_dscp_qcaps_output *resp; |
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struct hwrm_queue_dscp_qcaps_input *req; |
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int rc; |
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bp->max_dscp_value = 0; |
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if (bp->hwrm_spec_code < 0x10800 || BNXT_VF(bp)) |
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return 0; |
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rc = hwrm_req_init(bp, req, HWRM_QUEUE_DSCP_QCAPS); |
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if (rc) |
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return rc; |
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resp = hwrm_req_hold(bp, req); |
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rc = hwrm_req_send_silent(bp, req); |
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if (!rc) { |
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bp->max_dscp_value = (1 << resp->num_dscp_bits) - 1; |
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if (bp->max_dscp_value < 0x3f) |
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bp->max_dscp_value = 0; |
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} |
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hwrm_req_drop(bp, req); |
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return rc; |
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} |
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|
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static int bnxt_hwrm_queue_dscp2pri_cfg(struct bnxt *bp, struct dcb_app *app, |
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bool add) |
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{ |
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struct hwrm_queue_dscp2pri_cfg_input *req; |
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struct bnxt_dscp2pri_entry *dscp2pri; |
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dma_addr_t mapping; |
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int rc; |
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|
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if (bp->hwrm_spec_code < 0x10800) |
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return 0; |
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rc = hwrm_req_init(bp, req, HWRM_QUEUE_DSCP2PRI_CFG); |
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if (rc) |
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return rc; |
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dscp2pri = hwrm_req_dma_slice(bp, req, sizeof(*dscp2pri), &mapping); |
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if (!dscp2pri) { |
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hwrm_req_drop(bp, req); |
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return -ENOMEM; |
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} |
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|
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req->src_data_addr = cpu_to_le64(mapping); |
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dscp2pri->dscp = app->protocol; |
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if (add) |
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dscp2pri->mask = 0x3f; |
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else |
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dscp2pri->mask = 0; |
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dscp2pri->pri = app->priority; |
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req->entry_cnt = cpu_to_le16(1); |
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rc = hwrm_req_send(bp, req); |
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return rc; |
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} |
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|
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static int bnxt_ets_validate(struct bnxt *bp, struct ieee_ets *ets, u8 *tc) |
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{ |
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int total_ets_bw = 0; |
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bool zero = false; |
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u8 max_tc = 0; |
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int i; |
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|
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for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { |
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if (ets->prio_tc[i] > bp->max_tc) { |
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netdev_err(bp->dev, "priority to TC mapping exceeds TC count %d\n", |
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ets->prio_tc[i]); |
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return -EINVAL; |
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} |
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if (ets->prio_tc[i] > max_tc) |
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max_tc = ets->prio_tc[i]; |
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|
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if ((ets->tc_tx_bw[i] || ets->tc_tsa[i]) && i > bp->max_tc) |
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return -EINVAL; |
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|
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switch (ets->tc_tsa[i]) { |
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case IEEE_8021QAZ_TSA_STRICT: |
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break; |
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case IEEE_8021QAZ_TSA_ETS: |
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total_ets_bw += ets->tc_tx_bw[i]; |
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zero = zero || !ets->tc_tx_bw[i]; |
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break; |
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default: |
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return -ENOTSUPP; |
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} |
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} |
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if (total_ets_bw > 100) { |
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netdev_warn(bp->dev, "rejecting ETS config exceeding available bandwidth\n"); |
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return -EINVAL; |
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} |
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if (zero && total_ets_bw == 100) { |
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netdev_warn(bp->dev, "rejecting ETS config starving a TC\n"); |
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return -EINVAL; |
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} |
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|
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if (max_tc >= bp->max_tc) |
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*tc = bp->max_tc; |
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else |
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*tc = max_tc + 1; |
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return 0; |
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} |
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|
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static int bnxt_dcbnl_ieee_getets(struct net_device *dev, struct ieee_ets *ets) |
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{ |
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struct bnxt *bp = netdev_priv(dev); |
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struct ieee_ets *my_ets = bp->ieee_ets; |
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int rc; |
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|
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ets->ets_cap = bp->max_tc; |
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|
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if (!my_ets) { |
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if (bp->dcbx_cap & DCB_CAP_DCBX_HOST) |
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return 0; |
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|
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my_ets = kzalloc(sizeof(*my_ets), GFP_KERNEL); |
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if (!my_ets) |
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return -ENOMEM; |
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rc = bnxt_hwrm_queue_cos2bw_qcfg(bp, my_ets); |
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if (rc) |
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goto error; |
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rc = bnxt_hwrm_queue_pri2cos_qcfg(bp, my_ets); |
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if (rc) |
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goto error; |
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|
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/* cache result */ |
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bp->ieee_ets = my_ets; |
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} |
|
|
|
ets->cbs = my_ets->cbs; |
|
memcpy(ets->tc_tx_bw, my_ets->tc_tx_bw, sizeof(ets->tc_tx_bw)); |
|
memcpy(ets->tc_rx_bw, my_ets->tc_rx_bw, sizeof(ets->tc_rx_bw)); |
|
memcpy(ets->tc_tsa, my_ets->tc_tsa, sizeof(ets->tc_tsa)); |
|
memcpy(ets->prio_tc, my_ets->prio_tc, sizeof(ets->prio_tc)); |
|
return 0; |
|
error: |
|
kfree(my_ets); |
|
return rc; |
|
} |
|
|
|
static int bnxt_dcbnl_ieee_setets(struct net_device *dev, struct ieee_ets *ets) |
|
{ |
|
struct bnxt *bp = netdev_priv(dev); |
|
struct ieee_ets *my_ets = bp->ieee_ets; |
|
u8 max_tc = 0; |
|
int rc, i; |
|
|
|
if (!(bp->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) || |
|
!(bp->dcbx_cap & DCB_CAP_DCBX_HOST)) |
|
return -EINVAL; |
|
|
|
rc = bnxt_ets_validate(bp, ets, &max_tc); |
|
if (!rc) { |
|
if (!my_ets) { |
|
my_ets = kzalloc(sizeof(*my_ets), GFP_KERNEL); |
|
if (!my_ets) |
|
return -ENOMEM; |
|
/* initialize PRI2TC mappings to invalid value */ |
|
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) |
|
my_ets->prio_tc[i] = IEEE_8021QAZ_MAX_TCS; |
|
bp->ieee_ets = my_ets; |
|
} |
|
rc = bnxt_setup_mq_tc(dev, max_tc); |
|
if (rc) |
|
return rc; |
|
rc = bnxt_hwrm_queue_cos2bw_cfg(bp, ets, max_tc); |
|
if (rc) |
|
return rc; |
|
rc = bnxt_hwrm_queue_pri2cos_cfg(bp, ets); |
|
if (rc) |
|
return rc; |
|
memcpy(my_ets, ets, sizeof(*my_ets)); |
|
} |
|
return rc; |
|
} |
|
|
|
static int bnxt_dcbnl_ieee_getpfc(struct net_device *dev, struct ieee_pfc *pfc) |
|
{ |
|
struct bnxt *bp = netdev_priv(dev); |
|
__le64 *stats = bp->port_stats.hw_stats; |
|
struct ieee_pfc *my_pfc = bp->ieee_pfc; |
|
long rx_off, tx_off; |
|
int i, rc; |
|
|
|
pfc->pfc_cap = bp->max_lltc; |
|
|
|
if (!my_pfc) { |
|
if (bp->dcbx_cap & DCB_CAP_DCBX_HOST) |
|
return 0; |
|
|
|
my_pfc = kzalloc(sizeof(*my_pfc), GFP_KERNEL); |
|
if (!my_pfc) |
|
return 0; |
|
bp->ieee_pfc = my_pfc; |
|
rc = bnxt_hwrm_queue_pfc_qcfg(bp, my_pfc); |
|
if (rc) |
|
return 0; |
|
} |
|
|
|
pfc->pfc_en = my_pfc->pfc_en; |
|
pfc->mbc = my_pfc->mbc; |
|
pfc->delay = my_pfc->delay; |
|
|
|
if (!stats) |
|
return 0; |
|
|
|
rx_off = BNXT_RX_STATS_OFFSET(rx_pfc_ena_frames_pri0); |
|
tx_off = BNXT_TX_STATS_OFFSET(tx_pfc_ena_frames_pri0); |
|
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++, rx_off++, tx_off++) { |
|
pfc->requests[i] = le64_to_cpu(*(stats + tx_off)); |
|
pfc->indications[i] = le64_to_cpu(*(stats + rx_off)); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int bnxt_dcbnl_ieee_setpfc(struct net_device *dev, struct ieee_pfc *pfc) |
|
{ |
|
struct bnxt *bp = netdev_priv(dev); |
|
struct ieee_pfc *my_pfc = bp->ieee_pfc; |
|
int rc; |
|
|
|
if (!(bp->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) || |
|
!(bp->dcbx_cap & DCB_CAP_DCBX_HOST)) |
|
return -EINVAL; |
|
|
|
if (!my_pfc) { |
|
my_pfc = kzalloc(sizeof(*my_pfc), GFP_KERNEL); |
|
if (!my_pfc) |
|
return -ENOMEM; |
|
bp->ieee_pfc = my_pfc; |
|
} |
|
rc = bnxt_hwrm_queue_pfc_cfg(bp, pfc); |
|
if (!rc) |
|
memcpy(my_pfc, pfc, sizeof(*my_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; |
|
|
|
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; |
|
|
|
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); |
|
|
|
if (app->selector == IEEE_8021QAZ_APP_SEL_DSCP) |
|
rc = bnxt_hwrm_queue_dscp2pri_cfg(bp, app, true); |
|
|
|
return rc; |
|
} |
|
|
|
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) || |
|
!(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; |
|
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); |
|
|
|
if (app->selector == IEEE_8021QAZ_APP_SEL_DSCP) |
|
rc = bnxt_hwrm_queue_dscp2pri_cfg(bp, app, false); |
|
|
|
return rc; |
|
} |
|
|
|
static u8 bnxt_dcbnl_getdcbx(struct net_device *dev) |
|
{ |
|
struct bnxt *bp = netdev_priv(dev); |
|
|
|
return bp->dcbx_cap; |
|
} |
|
|
|
static u8 bnxt_dcbnl_setdcbx(struct net_device *dev, u8 mode) |
|
{ |
|
struct bnxt *bp = netdev_priv(dev); |
|
|
|
/* All firmware DCBX settings are set in NVRAM */ |
|
if (bp->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED) |
|
return 1; |
|
|
|
if (mode & DCB_CAP_DCBX_HOST) { |
|
if (BNXT_VF(bp) || (bp->fw_cap & BNXT_FW_CAP_LLDP_AGENT)) |
|
return 1; |
|
|
|
/* only support IEEE */ |
|
if ((mode & DCB_CAP_DCBX_VER_CEE) || |
|
!(mode & DCB_CAP_DCBX_VER_IEEE)) |
|
return 1; |
|
} |
|
|
|
if (mode == bp->dcbx_cap) |
|
return 0; |
|
|
|
bp->dcbx_cap = mode; |
|
return 0; |
|
} |
|
|
|
static const struct dcbnl_rtnl_ops dcbnl_ops = { |
|
.ieee_getets = bnxt_dcbnl_ieee_getets, |
|
.ieee_setets = bnxt_dcbnl_ieee_setets, |
|
.ieee_getpfc = bnxt_dcbnl_ieee_getpfc, |
|
.ieee_setpfc = bnxt_dcbnl_ieee_setpfc, |
|
.ieee_setapp = bnxt_dcbnl_ieee_setapp, |
|
.ieee_delapp = bnxt_dcbnl_ieee_delapp, |
|
.getdcbx = bnxt_dcbnl_getdcbx, |
|
.setdcbx = bnxt_dcbnl_setdcbx, |
|
}; |
|
|
|
void bnxt_dcb_init(struct bnxt *bp) |
|
{ |
|
bp->dcbx_cap = 0; |
|
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->fw_cap & BNXT_FW_CAP_LLDP_AGENT)) |
|
bp->dcbx_cap |= DCB_CAP_DCBX_HOST; |
|
else if (bp->fw_cap & BNXT_FW_CAP_DCBX_AGENT) |
|
bp->dcbx_cap |= DCB_CAP_DCBX_LLD_MANAGED; |
|
bp->dev->dcbnl_ops = &dcbnl_ops; |
|
} |
|
|
|
void bnxt_dcb_free(struct bnxt *bp) |
|
{ |
|
kfree(bp->ieee_pfc); |
|
kfree(bp->ieee_ets); |
|
bp->ieee_pfc = NULL; |
|
bp->ieee_ets = NULL; |
|
} |
|
|
|
#else |
|
|
|
void bnxt_dcb_init(struct bnxt *bp) |
|
{ |
|
} |
|
|
|
void bnxt_dcb_free(struct bnxt *bp) |
|
{ |
|
} |
|
|
|
#endif
|
|
|