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qede: Add support for Tx/Rx-only queues.

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Add provision for configuring the fastpath queues with Tx (or Rx) only
functionality.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sudarsana Reddy Kalluru
2016-08-23 10:56:55 -04:00
committed by David S. Miller
parent f8edcd127b
commit 9a4d7e86ac
3 changed files with 300 additions and 160 deletions
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30
drivers/net/ethernet/qlogic/qede/qede.h
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@@ -126,16 +126,22 @@ struct qede_dev {
(edev)->dev_info.num_tc)
struct qede_fastpath *fp_array;
u16 req_rss;
u16 num_rss;
u8 req_num_tx;
u8 fp_num_tx;
u8 req_num_rx;
u8 fp_num_rx;
u16 req_queues;
u16 num_queues;
u8 num_tc;
#define QEDE_RSS_CNT(edev) ((edev)->num_rss)
#define QEDE_TSS_CNT(edev) ((edev)->num_rss * \
(edev)->num_tc)
#define QEDE_TSS_IDX(edev, txqidx) ((txqidx) % (edev)->num_rss)
#define QEDE_TC_IDX(edev, txqidx) ((txqidx) / (edev)->num_rss)
#define QEDE_QUEUE_CNT(edev) ((edev)->num_queues)
#define QEDE_RSS_COUNT(edev) ((edev)->num_queues - (edev)->fp_num_tx)
#define QEDE_TSS_COUNT(edev) (((edev)->num_queues - (edev)->fp_num_rx) * \
(edev)->num_tc)
#define QEDE_TX_IDX(edev, txqidx) ((edev)->fp_num_rx + (txqidx) % \
QEDE_TSS_COUNT(edev))
#define QEDE_TC_IDX(edev, txqidx) ((txqidx) / QEDE_TSS_COUNT(edev))
#define QEDE_TX_QUEUE(edev, txqidx) \
(&(edev)->fp_array[QEDE_TSS_IDX((edev), (txqidx))].txqs[QEDE_TC_IDX( \
(&(edev)->fp_array[QEDE_TX_IDX((edev), (txqidx))].txqs[QEDE_TC_IDX(\
(edev), (txqidx))])
struct qed_int_info int_info;
@@ -284,7 +290,11 @@ struct qede_tx_queue {
struct qede_fastpath {
struct qede_dev *edev;
u8 rss_id;
#define QEDE_FASTPATH_TX BIT(0)
#define QEDE_FASTPATH_RX BIT(1)
#define QEDE_FASTPATH_COMBINED (QEDE_FASTPATH_TX | QEDE_FASTPATH_RX)
u8 type;
u8 id;
struct napi_struct napi;
struct qed_sb_info *sb_info;
struct qede_rx_queue *rxq;
@@ -344,6 +354,6 @@ void qede_recycle_rx_bd_ring(struct qede_rx_queue *rxq, struct qede_dev *edev,
#define QEDE_MIN_PKT_LEN 64
#define QEDE_RX_HDR_SIZE 256
#define for_each_rss(i) for (i = 0; i < edev->num_rss; i++)
#define for_each_queue(i) for (i = 0; i < edev->num_queues; i++)
#endif /* _QEDE_H_ */