51c87ebafc
In this patch we are adding the bnxt_tx_queue_setup_op() and bnxt_tx_queue_release_op() functions. These will be tied to the tx_queue_setup and tx_queue_release dev_ops in a subsequent patch. In these functions we allocate/free memory for the TX queues. This still requires support to create a TX ring in the ASIC which will be completed in a future commit. Each Tx queue created via the tx_queue_setup dev_op will have an associated Tx ring in the hardware. A Tx request coming on the Tx queue gets sent to the corresponding Tx ring in the ASIC for subsequent transmission. Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com> Reviewed-by: David Christensen <david.christensen@broadcom.com>
76 lines
3.1 KiB
C
76 lines
3.1 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_TXQ_H_
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#define _BNXT_TXQ_H_
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struct bnxt_tx_ring_info;
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struct bnxt_cp_ring_info;
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struct bnxt_tx_queue {
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uint16_t nb_tx_desc; /* number of TX descriptors */
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uint16_t tx_free_thresh;/* minimum TX before freeing */
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/** Index to last TX descriptor to have been cleaned. */
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uint16_t last_desc_cleaned;
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/** Total number of TX descriptors ready to be allocated. */
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uint16_t tx_next_dd; /* next desc to scan for DD bit */
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uint16_t tx_next_rs; /* next desc to set RS bit */
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uint16_t queue_id; /* TX queue index */
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uint16_t reg_idx; /* TX queue register index */
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uint8_t port_id; /* Device port identifier */
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uint8_t pthresh; /* Prefetch threshold register */
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uint8_t hthresh; /* Host threshold register */
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uint8_t wthresh; /* Write-back threshold reg */
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uint32_t txq_flags; /* Holds flags for this TXq */
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uint32_t ctx_curr; /* Hardware context states */
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uint8_t tx_deferred_start; /* not in global dev start */
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struct bnxt *bp;
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int index;
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int tx_wake_thresh;
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struct bnxt_tx_ring_info *tx_ring;
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unsigned int cp_nr_rings;
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struct bnxt_cp_ring_info *cp_ring;
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};
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void bnxt_free_txq_stats(struct bnxt_tx_queue *txq);
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void bnxt_free_tx_mbufs(struct bnxt *bp);
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void bnxt_tx_queue_release_op(void *tx_queue);
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int bnxt_tx_queue_setup_op(struct rte_eth_dev *eth_dev,
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uint16_t queue_idx,
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uint16_t nb_desc,
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unsigned int socket_id,
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const struct rte_eth_txconf *tx_conf);
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#endif
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