ceph/src/seastar/dpdk/drivers/net/bnxt/bnxt_txq.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) Broadcom Limited.
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  12  *       notice, this list of conditions and the following disclaimer.
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  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
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  19  *       from this software without specific prior written permission.
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  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #ifndef _BNXT_TXQ_H_
  35 #define _BNXT_TXQ_H_
  36
  37 struct bnxt_tx_ring_info;
  38 struct bnxt_cp_ring_info;
  39 struct bnxt_tx_queue {
  40         uint16_t                nb_tx_desc;    /* number of TX descriptors */
  41         uint16_t                tx_free_thresh;/* minimum TX before freeing */
  42         /** Index to last TX descriptor to have been cleaned. */
  43         uint16_t                last_desc_cleaned;
  44         /** Total number of TX descriptors ready to be allocated. */
  45         uint16_t                tx_next_dd; /* next desc to scan for DD bit */
  46         uint16_t                tx_next_rs; /* next desc to set RS bit */
  47         uint16_t                queue_id; /* TX queue index */
  48         uint16_t                reg_idx; /* TX queue register index */
  49         uint8_t                 port_id; /* Device port identifier */
  50         uint8_t                 pthresh; /* Prefetch threshold register */
  51         uint8_t                 hthresh; /* Host threshold register */
  52         uint8_t                 wthresh; /* Write-back threshold reg */
  53         uint32_t                txq_flags; /* Holds flags for this TXq */
  54         uint32_t                ctx_curr; /* Hardware context states */
  55         uint8_t                 tx_deferred_start; /* not in global dev start */
  56
  57         struct bnxt             *bp;
  58         int                     index;
  59         int                     tx_wake_thresh;
  60         struct bnxt_tx_ring_info        *tx_ring;
  61
  62         unsigned int            cp_nr_rings;
  63         struct bnxt_cp_ring_info        *cp_ring;
  64 };
  65
  66 void bnxt_free_txq_stats(struct bnxt_tx_queue *txq);
  67 void bnxt_free_tx_mbufs(struct bnxt *bp);
  68 void bnxt_tx_queue_release_op(void *tx_queue);
  69 int bnxt_tx_queue_setup_op(struct rte_eth_dev *eth_dev,
  70                                uint16_t queue_idx,
  71                                uint16_t nb_desc,
  72                                unsigned int socket_id,
  73                                const struct rte_eth_txconf *tx_conf);
  74
  75 #endif