From: Sudarsana Reddy Kalluru <skalluru@marvell.com>
To: <davem@davemloft.net>
Cc: <netdev@vger.kernel.org>, <aelior@marvell.com>, <mkalderon@marvell.com>
Subject: [PATCH net-next 1/1] qed: Read device port count from the shmem
Date: Thu, 21 Feb 2019 06:03:31 -0800 [thread overview]
Message-ID: <20190221140331.24119-1-skalluru@marvell.com> (raw)
Read port count from the shared memory instead of driver deriving this
value. This change simplifies the driver implementation and also avoids
any dependencies for finding the port-count.
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
---
drivers/net/ethernet/qlogic/qed/qed.h | 6 +-
drivers/net/ethernet/qlogic/qed/qed_dev.c | 95 ++++++++++++-------------------
drivers/net/ethernet/qlogic/qed/qed_l2.c | 4 +-
drivers/net/ethernet/qlogic/qed/qed_mcp.h | 4 --
drivers/net/ethernet/qlogic/qed/qed_ptp.c | 2 +-
5 files changed, 44 insertions(+), 67 deletions(-)
diff --git a/drivers/net/ethernet/qlogic/qed/qed.h b/drivers/net/ethernet/qlogic/qed/qed.h
index 2d21c94..43a57ec 100644
--- a/drivers/net/ethernet/qlogic/qed/qed.h
+++ b/drivers/net/ethernet/qlogic/qed/qed.h
@@ -753,6 +753,7 @@ struct qed_dev {
#define CHIP_BOND_ID_SHIFT 0
u8 num_engines;
+ u8 num_ports;
u8 num_ports_in_engine;
u8 num_funcs_in_port;
@@ -892,7 +893,6 @@ void qed_configure_vp_wfq_on_link_change(struct qed_dev *cdev,
void qed_clean_wfq_db(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
int qed_device_num_engines(struct qed_dev *cdev);
-int qed_device_get_port_id(struct qed_dev *cdev);
void qed_set_fw_mac_addr(__le16 *fw_msb,
__le16 *fw_mid, __le16 *fw_lsb, u8 *mac);
@@ -939,6 +939,10 @@ void qed_db_recovery_execute(struct qed_hwfn *p_hwfn,
writel((u32)val, (void __iomem *)((u8 __iomem *)\
(cdev->doorbells) + (db_addr)))
+#define MFW_PORT(_p_hwfn) ((_p_hwfn)->abs_pf_id % \
+ qed_device_num_ports((_p_hwfn)->cdev))
+int qed_device_num_ports(struct qed_dev *cdev);
+
/* Prototypes */
int qed_fill_dev_info(struct qed_dev *cdev,
struct qed_dev_info *dev_info);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index e2cbd77..9df8c4b 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -3269,55 +3269,43 @@ static void qed_get_num_funcs(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
p_hwfn->enabled_func_idx, p_hwfn->num_funcs_on_engine);
}
-static void qed_hw_info_port_num_bb(struct qed_hwfn *p_hwfn,
- struct qed_ptt *p_ptt)
-{
- u32 port_mode;
-
- port_mode = qed_rd(p_hwfn, p_ptt, CNIG_REG_NW_PORT_MODE_BB);
-
- if (port_mode < 3) {
- p_hwfn->cdev->num_ports_in_engine = 1;
- } else if (port_mode <= 5) {
- p_hwfn->cdev->num_ports_in_engine = 2;
- } else {
- DP_NOTICE(p_hwfn, "PORT MODE: %d not supported\n",
- p_hwfn->cdev->num_ports_in_engine);
-
- /* Default num_ports_in_engine to something */
- p_hwfn->cdev->num_ports_in_engine = 1;
- }
-}
-
-static void qed_hw_info_port_num_ah(struct qed_hwfn *p_hwfn,
- struct qed_ptt *p_ptt)
+static void qed_hw_info_port_num(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
- u32 port;
- int i;
-
- p_hwfn->cdev->num_ports_in_engine = 0;
+ u32 addr, global_offsize, global_addr, port_mode;
+ struct qed_dev *cdev = p_hwfn->cdev;
- for (i = 0; i < MAX_NUM_PORTS_K2; i++) {
- port = qed_rd(p_hwfn, p_ptt,
- CNIG_REG_NIG_PORT0_CONF_K2 + (i * 4));
- if (port & 1)
- p_hwfn->cdev->num_ports_in_engine++;
+ /* In CMT there is always only one port */
+ if (cdev->num_hwfns > 1) {
+ cdev->num_ports_in_engine = 1;
+ cdev->num_ports = 1;
+ return;
}
- if (!p_hwfn->cdev->num_ports_in_engine) {
- DP_NOTICE(p_hwfn, "All NIG ports are inactive\n");
-
- /* Default num_ports_in_engine to something */
- p_hwfn->cdev->num_ports_in_engine = 1;
+ /* Determine the number of ports per engine */
+ port_mode = qed_rd(p_hwfn, p_ptt, MISC_REG_PORT_MODE);
+ switch (port_mode) {
+ case 0x0:
+ cdev->num_ports_in_engine = 1;
+ break;
+ case 0x1:
+ cdev->num_ports_in_engine = 2;
+ break;
+ case 0x2:
+ cdev->num_ports_in_engine = 4;
+ break;
+ default:
+ DP_NOTICE(p_hwfn, "Unknown port mode 0x%08x\n", port_mode);
+ cdev->num_ports_in_engine = 1; /* Default to something */
+ break;
}
-}
-static void qed_hw_info_port_num(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
-{
- if (QED_IS_BB(p_hwfn->cdev))
- qed_hw_info_port_num_bb(p_hwfn, p_ptt);
- else
- qed_hw_info_port_num_ah(p_hwfn, p_ptt);
+ /* Get the total number of ports of the device */
+ addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
+ PUBLIC_GLOBAL);
+ global_offsize = qed_rd(p_hwfn, p_ptt, addr);
+ global_addr = SECTION_ADDR(global_offsize, 0);
+ addr = global_addr + offsetof(struct public_global, max_ports);
+ cdev->num_ports = (u8)qed_rd(p_hwfn, p_ptt, addr);
}
static void qed_get_eee_caps(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
@@ -3355,7 +3343,8 @@ static void qed_get_eee_caps(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
return rc;
}
- qed_hw_info_port_num(p_hwfn, p_ptt);
+ if (IS_LEAD_HWFN(p_hwfn))
+ qed_hw_info_port_num(p_hwfn, p_ptt);
qed_mcp_get_capabilities(p_hwfn, p_ptt);
@@ -4760,23 +4749,9 @@ void qed_clean_wfq_db(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
sizeof(*p_hwfn->qm_info.wfq_data) * p_hwfn->qm_info.num_vports);
}
-int qed_device_num_engines(struct qed_dev *cdev)
-{
- return QED_IS_BB(cdev) ? 2 : 1;
-}
-
-static int qed_device_num_ports(struct qed_dev *cdev)
-{
- /* in CMT always only one port */
- if (cdev->num_hwfns > 1)
- return 1;
-
- return cdev->num_ports_in_engine * qed_device_num_engines(cdev);
-}
-
-int qed_device_get_port_id(struct qed_dev *cdev)
+int qed_device_num_ports(struct qed_dev *cdev)
{
- return (QED_LEADING_HWFN(cdev)->abs_pf_id) % qed_device_num_ports(cdev);
+ return cdev->num_ports;
}
void qed_set_fw_mac_addr(__le16 *fw_msb,
diff --git a/drivers/net/ethernet/qlogic/qed/qed_l2.c b/drivers/net/ethernet/qlogic/qed/qed_l2.c
index 58be1c4..5764172 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_l2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_l2.c
@@ -1898,6 +1898,7 @@ static void _qed_get_vport_stats(struct qed_dev *cdev,
struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
struct qed_ptt *p_ptt = IS_PF(cdev) ? qed_ptt_acquire(p_hwfn)
: NULL;
+ bool b_get_port_stats;
if (IS_PF(cdev)) {
/* The main vport index is relative first */
@@ -1912,8 +1913,9 @@ static void _qed_get_vport_stats(struct qed_dev *cdev,
continue;
}
+ b_get_port_stats = IS_PF(cdev) && IS_LEAD_HWFN(p_hwfn);
__qed_get_vport_stats(p_hwfn, p_ptt, stats, fw_vport,
- IS_PF(cdev) ? true : false);
+ b_get_port_stats);
out:
if (IS_PF(cdev) && p_ptt)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.h b/drivers/net/ethernet/qlogic/qed/qed_mcp.h
index 2799e67..261c1a3 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.h
@@ -691,10 +691,6 @@ int qed_mcp_bist_nvm_get_image_att(struct qed_hwfn *p_hwfn,
rel_pfid)
#define MCP_PF_ID(p_hwfn) MCP_PF_ID_BY_REL(p_hwfn, (p_hwfn)->rel_pf_id)
-#define MFW_PORT(_p_hwfn) ((_p_hwfn)->abs_pf_id % \
- ((_p_hwfn)->cdev->num_ports_in_engine * \
- qed_device_num_engines((_p_hwfn)->cdev)))
-
struct qed_mcp_info {
/* List for mailbox commands which were sent and wait for a response */
struct list_head cmd_list;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ptp.c b/drivers/net/ethernet/qlogic/qed/qed_ptp.c
index 5a90d69..1302b30 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ptp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_ptp.c
@@ -47,7 +47,7 @@
static enum qed_resc_lock qed_ptcdev_to_resc(struct qed_hwfn *p_hwfn)
{
- switch (qed_device_get_port_id(p_hwfn->cdev)) {
+ switch (MFW_PORT(p_hwfn)) {
case 0:
return QED_RESC_LOCK_PTP_PORT0;
case 1:
--
1.8.3.1
next reply other threads:[~2019-02-21 14:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-21 14:03 Sudarsana Reddy Kalluru [this message]
2019-02-21 18:51 ` [PATCH net-next 1/1] qed: Read device port count from the shmem David Miller
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