Commit cdae3936 authored by Selvin Xavier's avatar Selvin Xavier Committed by Leon Romanovsky
Browse files

RDMA/bnxt_re: Doorbell changes 



Update the Doorbell routines to support the latest HW
definitions. Use common routine to prepare the Doorbell
key.

Signed-off-by: default avatarSelvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1701946060-13931-6-git-send-email-selvin.xavier@broadcom.com


Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent 6027c20d

drivers/infiniband/hw/bnxt_re/qplib_res.h

+35 −11
Original line number Diff line number Diff line
@@ -47,6 +47,9 @@ extern const struct bnxt_qplib_gid bnxt_qplib_gid_zero; 
#define CHIP_NUM_58818          0xd818

#define CHIP_NUM_57608          0x1760



#define BNXT_QPLIB_DBR_VALID		(0x1UL << 26)

#define BNXT_QPLIB_DBR_EPOCH_SHIFT	24

#define BNXT_QPLIB_DBR_TOGGLE_SHIFT	25



struct bnxt_qplib_drv_modes {

	u8	wqe_mode;
@@ -200,6 +203,11 @@ enum bnxt_qplib_db_info_flags_mask { 
	BNXT_QPLIB_FLAG_EPOCH_PROD_MASK         = 0x2UL,

};



enum bnxt_qplib_db_epoch_flag_shift {

	BNXT_QPLIB_DB_EPOCH_CONS_SHIFT  = BNXT_QPLIB_DBR_EPOCH_SHIFT,

	BNXT_QPLIB_DB_EPOCH_PROD_SHIFT  = (BNXT_QPLIB_DBR_EPOCH_SHIFT - 1),

};



/* Tables */

struct bnxt_qplib_pd_tbl {

	unsigned long			*tbl;
@@ -453,14 +461,27 @@ static inline void bnxt_qplib_ring_db32(struct bnxt_qplib_db_info *info, 
	writel(key, info->db);

}



#define BNXT_QPLIB_INIT_DBHDR(xid, type, indx, toggle) \

	(((u64)(((xid) & DBC_DBC_XID_MASK) | DBC_DBC_PATH_ROCE |  \

		(type) | BNXT_QPLIB_DBR_VALID) << 32) | (indx) |  \

	 (((u32)(toggle)) << (BNXT_QPLIB_DBR_TOGGLE_SHIFT)))



static inline void bnxt_qplib_ring_db(struct bnxt_qplib_db_info *info,

				      u32 type)

{

	u64 key = 0;

	u32 indx;

	u8 toggle = 0;



	if (type == DBC_DBC_TYPE_CQ_ARMALL ||

	    type == DBC_DBC_TYPE_CQ_ARMSE)

		toggle = info->toggle;



	indx = (info->hwq->cons & DBC_DBC_INDEX_MASK) |

	       ((info->flags & BNXT_QPLIB_FLAG_EPOCH_CONS_MASK) <<

		 BNXT_QPLIB_DB_EPOCH_CONS_SHIFT);



	key = (info->xid & DBC_DBC_XID_MASK) | DBC_DBC_PATH_ROCE | type;

	key <<= 32;

	key |= (info->hwq->cons & DBC_DBC_INDEX_MASK);

	key =  BNXT_QPLIB_INIT_DBHDR(info->xid, type, indx, toggle);

	writeq(key, info->db);

}
@@ -468,10 +489,12 @@ static inline void bnxt_qplib_ring_prod_db(struct bnxt_qplib_db_info *info, 
					   u32 type)

{

	u64 key = 0;

	u32 indx;



	key = (info->xid & DBC_DBC_XID_MASK) | DBC_DBC_PATH_ROCE | type;

	key <<= 32;

	key |= ((info->hwq->prod / info->max_slot)) & DBC_DBC_INDEX_MASK;

	indx = (((info->hwq->prod / info->max_slot) & DBC_DBC_INDEX_MASK) |

		((info->flags & BNXT_QPLIB_FLAG_EPOCH_PROD_MASK) <<

		 BNXT_QPLIB_DB_EPOCH_PROD_SHIFT));

	key = BNXT_QPLIB_INIT_DBHDR(info->xid, type, indx, 0);

	writeq(key, info->db);

}
@@ -479,9 +502,12 @@ static inline void bnxt_qplib_armen_db(struct bnxt_qplib_db_info *info, 
				       u32 type)

{

	u64 key = 0;

	u8 toggle = 0;



	key = (info->xid & DBC_DBC_XID_MASK) | DBC_DBC_PATH_ROCE | type;

	key <<= 32;

	if (type == DBC_DBC_TYPE_CQ_ARMENA || type == DBC_DBC_TYPE_SRQ_ARMENA)

		toggle = info->toggle;

	/* Index always at 0 */

	key = BNXT_QPLIB_INIT_DBHDR(info->xid, type, 0, toggle);

	writeq(key, info->priv_db);

}
@@ -490,9 +516,7 @@ static inline void bnxt_qplib_srq_arm_db(struct bnxt_qplib_db_info *info, 
{

	u64 key = 0;



	key = (info->xid & DBC_DBC_XID_MASK) | DBC_DBC_PATH_ROCE | th;

	key <<= 32;

	key |=  th & DBC_DBC_INDEX_MASK;

	key = BNXT_QPLIB_INIT_DBHDR(info->xid, DBC_DBC_TYPE_SRQ_ARM, th, info->toggle);

	writeq(key, info->priv_db);

}