1fe1aaf207
This patch adds support for the Broadcom StrataGX® BCM5871X series of Communications Processors. These ARM based processors target a broad range of networking applications including virtual CPE (vCPE) and NFV appliances, 10G service routers and gateways, control plane processing for Ethernet switches, and network attached storage (NAS). Other than adding the PCI Id for supporting the device, the patch also adds a memory barrier before the Tx doorbell and Completing ring doorbell is written to. Since ARM has a weakly ordered memory model this enforces a strict ordering of the descriptor writes before the doorbell writes happen. Signed-off-by: John Carney <john.carney@broadcom.com> Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) Broadcom Limited.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Broadcom Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _BNXT_TXR_H_
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#define _BNXT_TXR_H_
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#define MAX_TX_RINGS 16
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#define BNXT_TX_PUSH_THRESH 92
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#define B_TX_DB(db, prod) \
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rte_smp_wmb(); \
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(*(uint32_t *)db = (DB_KEY_TX | prod))
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struct bnxt_tx_ring_info {
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uint16_t tx_prod;
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uint16_t tx_cons;
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void *tx_doorbell;
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struct tx_bd_long *tx_desc_ring;
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struct bnxt_sw_tx_bd *tx_buf_ring;
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phys_addr_t tx_desc_mapping;
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#define BNXT_DEV_STATE_CLOSING 0x1
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uint32_t dev_state;
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struct bnxt_ring *tx_ring_struct;
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};
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struct bnxt_sw_tx_bd {
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struct rte_mbuf *mbuf; /* mbuf associated with TX descriptor */
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uint8_t is_gso;
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unsigned short nr_bds;
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};
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void bnxt_free_tx_rings(struct bnxt *bp);
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int bnxt_init_one_tx_ring(struct bnxt_tx_queue *txq);
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int bnxt_init_tx_ring_struct(struct bnxt_tx_queue *txq, unsigned int socket_id);
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uint16_t bnxt_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
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uint16_t nb_pkts);
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#endif
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