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qed: Encapsulate interrupt counters in struct 

We already have an API struct that contains interrupt-related
numbers. Use it to encapsulate all information relating to the
status of SBs as (used|free).

Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mintz, Yuval 2017-06-01 15:29:06 +03:00 committed by David S. Miller
parent a333f7f3fd
commit 726fdbe9fa
6 changed files with 30 additions and 27 deletions
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4
drivers/net/ethernet/qlogic/qed/qed_dev.c
View File

@ -2061,7 +2061,7 @@ static void qed_hw_set_feat(struct qed_hwfn *p_hwfn)
qed_int_get_num_sbs(p_hwfn, &sb_cnt_info);
feat_num[QED_VF_L2_QUE] = min_t(u32,
RESC_NUM(p_hwfn, QED_L2_QUEUE),
sb_cnt_info.sb_iov_cnt);
sb_cnt_info.iov_cnt);
feat_num[QED_PF_L2_QUE] = min_t(u32,
RESC_NUM(p_hwfn, QED_SB) -
non_l2_sbs,
@ -2255,7 +2255,7 @@ int qed_hw_get_dflt_resc(struct qed_hwfn *p_hwfn,
case QED_SB:
memset(&sb_cnt_info, 0, sizeof(sb_cnt_info));
qed_int_get_num_sbs(p_hwfn, &sb_cnt_info);
*p_resc_num = sb_cnt_info.sb_cnt;
*p_resc_num = sb_cnt_info.cnt;
break;
default:
return -EINVAL;

20
drivers/net/ethernet/qlogic/qed/qed_int.c
View File

@ -1769,7 +1769,7 @@ void qed_int_igu_init_pure_rt(struct qed_hwfn *p_hwfn,
bool b_set, bool b_slowpath)
{
u32 igu_base_sb = p_hwfn->hw_info.p_igu_info->igu_base_sb;
u32 igu_sb_cnt = p_hwfn->hw_info.p_igu_info->igu_sb_cnt;
u32 igu_sb_cnt = p_hwfn->hw_info.p_igu_info->usage.cnt;
u32 igu_sb_id = 0, val = 0;
val = qed_rd(p_hwfn, p_ptt, IGU_REG_BLOCK_CONFIGURATION);
@ -1827,7 +1827,6 @@ int qed_int_igu_read_cam(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
/* Initialize base sb / sb cnt for PFs and VFs */
p_igu_info->igu_base_sb = 0xffff;
p_igu_info->igu_sb_cnt = 0;
p_igu_info->igu_base_sb_iov = 0xffff;
/* Distinguish between existent and non-existent default SB */
@ -1856,7 +1855,7 @@ int qed_int_igu_read_cam(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
if (p_igu_info->igu_dsb_id != QED_SB_INVALID_IDX) {
if (p_igu_info->igu_base_sb == 0xffff)
p_igu_info->igu_base_sb = igu_sb_id;
p_igu_info->igu_sb_cnt++;
p_igu_info->usage.cnt++;
}
} else if (!(p_block->is_pf) &&
(p_block->function_id >= min_vf) &&
@ -1867,7 +1866,7 @@ int qed_int_igu_read_cam(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
if (p_igu_info->igu_base_sb_iov == 0xffff)
p_igu_info->igu_base_sb_iov = igu_sb_id;
p_igu_info->free_blks++;
p_igu_info->usage.iov_cnt++;
}
/* Mark the First entry belonging to the PF or its VFs
@ -1900,12 +1899,13 @@ int qed_int_igu_read_cam(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
}
/* All non default SB are considered free at this point */
p_igu_info->igu_sb_cnt_iov = p_igu_info->free_blks;
p_igu_info->usage.free_cnt = p_igu_info->usage.cnt;
p_igu_info->usage.free_cnt_iov = p_igu_info->usage.iov_cnt;
DP_VERBOSE(p_hwfn, NETIF_MSG_INTR,
"igu_dsb_id=0x%x, num Free SBs - PF: %04x VF: %04x\n",
p_igu_info->igu_dsb_id,
p_igu_info->igu_sb_cnt, p_igu_info->igu_sb_cnt_iov);
p_igu_info->usage.cnt, p_igu_info->usage.iov_cnt);
return 0;
}
@ -2003,9 +2003,7 @@ void qed_int_get_num_sbs(struct qed_hwfn *p_hwfn,
if (!info || !p_sb_cnt_info)
return;
p_sb_cnt_info->sb_cnt = info->igu_sb_cnt;
p_sb_cnt_info->sb_iov_cnt = info->igu_sb_cnt_iov;
p_sb_cnt_info->sb_free_blk = info->free_blks;
memcpy(p_sb_cnt_info, &info->usage, sizeof(*p_sb_cnt_info));
}
u16 qed_int_queue_id_from_sb_id(struct qed_hwfn *p_hwfn, u16 sb_id)
@ -2014,10 +2012,10 @@ u16 qed_int_queue_id_from_sb_id(struct qed_hwfn *p_hwfn, u16 sb_id)
/* Determine origin of SB id */
if ((sb_id >= p_info->igu_base_sb) &&
(sb_id < p_info->igu_base_sb + p_info->igu_sb_cnt)) {
(sb_id < p_info->igu_base_sb + p_info->usage.cnt)) {
return sb_id - p_info->igu_base_sb;
} else if ((sb_id >= p_info->igu_base_sb_iov) &&
(sb_id < p_info->igu_base_sb_iov + p_info->igu_sb_cnt_iov)) {
(sb_id < p_info->igu_base_sb_iov + p_info->usage.iov_cnt)) {
/* We want the first VF queue to be adjacent to the
* last PF queue. Since L2 queues can be partial to
* SBs, we'll use the feature instead.

10
drivers/net/ethernet/qlogic/qed/qed_int.h
View File

@ -216,11 +216,11 @@ struct qed_igu_block {
struct qed_igu_info {
struct qed_igu_block entry[MAX_TOT_SB_PER_PATH];
u16 igu_dsb_id;
u16 igu_base_sb;
u16 igu_base_sb_iov;
u16 igu_sb_cnt;
u16 igu_sb_cnt_iov;
u16 free_blks;
u16 igu_base_sb;
u16 igu_base_sb_iov;
struct qed_sb_cnt_info usage;
};
/* TODO Names of function may change... */

2
drivers/net/ethernet/qlogic/qed/qed_main.c
View File

@ -762,7 +762,7 @@ static int qed_slowpath_setup_int(struct qed_dev *cdev,
for_each_hwfn(cdev, i) {
memset(&sb_cnt_info, 0, sizeof(sb_cnt_info));
qed_int_get_num_sbs(&cdev->hwfns[i], &sb_cnt_info);
cdev->int_params.in.num_vectors += sb_cnt_info.sb_cnt;
cdev->int_params.in.num_vectors += sb_cnt_info.cnt;
cdev->int_params.in.num_vectors++; /* slowpath */
}

9
drivers/net/ethernet/qlogic/qed/qed_sriov.c
View File

@ -874,9 +874,9 @@ static u8 qed_iov_alloc_vf_igu_sbs(struct qed_hwfn *p_hwfn,
igu_blocks = p_hwfn->hw_info.p_igu_info->entry;
if (num_rx_queues > p_hwfn->hw_info.p_igu_info->free_blks)
num_rx_queues = p_hwfn->hw_info.p_igu_info->free_blks;
p_hwfn->hw_info.p_igu_info->free_blks -= num_rx_queues;
if (num_rx_queues > p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov)
num_rx_queues = p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov;
p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov -= num_rx_queues;
SET_FIELD(val, IGU_MAPPING_LINE_FUNCTION_NUMBER, vf->abs_vf_id);
SET_FIELD(val, IGU_MAPPING_LINE_VALID, 1);
@ -932,8 +932,7 @@ static void qed_iov_free_vf_igu_sbs(struct qed_hwfn *p_hwfn,
qed_wr(p_hwfn, p_ptt, addr, val);
p_info->entry[igu_id].status |= QED_IGU_STATUS_FREE;
p_hwfn->hw_info.p_igu_info->free_blks++;
p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov++;
}
vf->num_sbs = 0;

12
include/linux/qed/qed_if.h
View File

@ -886,9 +886,15 @@ struct qed_eth_stats {
#define TX_PI(tc) (RX_PI + 1 + tc)
struct qed_sb_cnt_info {
int sb_cnt;
int sb_iov_cnt;
int sb_free_blk;
/* Original, current, and free SBs for PF */
int orig;
int cnt;
int free_cnt;
/* Original, current and free SBS for child VFs */
int iov_orig;
int iov_cnt;
int free_cnt_iov;
};
static inline u16 qed_sb_update_sb_idx(struct qed_sb_info *sb_info)