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Message-ID: <20170601122911.22493-7-Yuval.Mintz@cavium.com>
Date: Thu, 1 Jun 2017 15:29:06 +0300
From: Yuval Mintz <Yuval.Mintz@...ium.com>
To: <davem@...emloft.net>, <netdev@...r.kernel.org>
CC: Yuval Mintz <Yuval.Mintz@...ium.com>
Subject: [PATCH net-next 06/11] 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@...ium.com>
---
drivers/net/ethernet/qlogic/qed/qed_dev.c | 4 ++--
drivers/net/ethernet/qlogic/qed/qed_int.c | 20 +++++++++-----------
drivers/net/ethernet/qlogic/qed/qed_int.h | 10 +++++-----
drivers/net/ethernet/qlogic/qed/qed_main.c | 2 +-
drivers/net/ethernet/qlogic/qed/qed_sriov.c | 9 ++++-----
include/linux/qed/qed_if.h | 12 +++++++++---
6 files changed, 30 insertions(+), 27 deletions(-)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index 3b6114d..1fff047 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -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;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_int.c b/drivers/net/ethernet/qlogic/qed/qed_int.c
index 3307978..c9164e2 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_int.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_int.c
@@ -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.
diff --git a/drivers/net/ethernet/qlogic/qed/qed_int.h b/drivers/net/ethernet/qlogic/qed/qed_int.h
index 60aaf9f..5a0e8f0 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_int.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_int.h
@@ -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... */
diff --git a/drivers/net/ethernet/qlogic/qed/qed_main.c b/drivers/net/ethernet/qlogic/qed/qed_main.c
index c5bb80b..ac3bdcd 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_main.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_main.c
@@ -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 */
}
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sriov.c b/drivers/net/ethernet/qlogic/qed/qed_sriov.c
index 0827a41..62b207a 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sriov.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_sriov.c
@@ -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;
diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h
index 73c46d6..607e1c5 100644
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -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)
--
2.9.4
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