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Commit a333f7f3 authored by Mintz, Yuval's avatar Mintz, Yuval Committed by David S. Miller
Browse files

qed: Add aux. function translating sb_id -> igu_sb_id 



An additional step for relaxing the IGU order assumption, we now add
an auxiliary function that can be used for finding the HW status block
that's associated with a given MSI-x vector.

Signed-off-by: default avatarYuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d031548e

drivers/net/ethernet/qlogic/qed/qed_int.c

+21 −10
Original line number Diff line number Diff line
@@ -1412,15 +1412,26 @@ void qed_int_sb_setup(struct qed_hwfn *p_hwfn, 
				    sb_info->igu_sb_id, 0, 0);

}



/**

 * @brief qed_get_igu_sb_id - given a sw sb_id return the

 *        igu_sb_id

 *

 * @param p_hwfn

 * @param sb_id

 *

 * @return u16

 */

static u16 qed_get_pf_igu_sb_id(struct qed_hwfn *p_hwfn, u16 vector_id)

{

	struct qed_igu_block *p_block;

	u16 igu_id;



	for (igu_id = 0; igu_id < QED_MAPPING_MEMORY_SIZE(p_hwfn->cdev);

	     igu_id++) {

		p_block = &p_hwfn->hw_info.p_igu_info->entry[igu_id];



		if (!(p_block->status & QED_IGU_STATUS_VALID) ||

		    !p_block->is_pf ||

		    p_block->vector_number != vector_id)

			continue;



		return igu_id;

	}



	return QED_SB_INVALID_IDX;

}



static u16 qed_get_igu_sb_id(struct qed_hwfn *p_hwfn, u16 sb_id)

{

	u16 igu_sb_id;
@@ -1429,7 +1440,7 @@ static u16 qed_get_igu_sb_id(struct qed_hwfn *p_hwfn, u16 sb_id) 
	if (sb_id == QED_SP_SB_ID)

		igu_sb_id = p_hwfn->hw_info.p_igu_info->igu_dsb_id;

	else if (IS_PF(p_hwfn->cdev))

		igu_sb_id = sb_id + p_hwfn->hw_info.p_igu_info->igu_base_sb;

		igu_sb_id = qed_get_pf_igu_sb_id(p_hwfn, sb_id + 1);

	else

		igu_sb_id = qed_vf_get_igu_sb_id(p_hwfn, sb_id);