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qed: Add support for coalescing config read/update.

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This patch adds support for configuring the device tx/rx coalescing
timeout values in the order of micro seconds. It also adds APIs for
upper layer drivers for reading/updating the coalescing values.

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
2016-06-21 09:36:21 -04:00
committed by David S. Miller
parent dc14341ed6
commit 722003ac40
8 changed files with 307 additions and 5 deletions
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24
include/linux/qed/qed_if.h
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@@ -488,6 +488,30 @@ struct qed_common_ops {
void (*chain_free)(struct qed_dev *cdev,
struct qed_chain *p_chain);
/**
* @brief get_coalesce - Get coalesce parameters in usec
*
* @param cdev
* @param rx_coal - Rx coalesce value in usec
* @param tx_coal - Tx coalesce value in usec
*
*/
void (*get_coalesce)(struct qed_dev *cdev, u16 *rx_coal, u16 *tx_coal);
/**
* @brief set_coalesce - Configure Rx coalesce value in usec
*
* @param cdev
* @param rx_coal - Rx coalesce value in usec
* @param tx_coal - Tx coalesce value in usec
* @param qid - Queue index
* @param sb_id - Status Block Id
*
* @return 0 on success, error otherwise.
*/
int (*set_coalesce)(struct qed_dev *cdev, u16 rx_coal, u16 tx_coal,
u8 qid, u16 sb_id);
/**
* @brief set_led - Configure LED mode
*