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Date: Wed, 08 Oct 2008 17:34:13 -0700
From: Divy Le Ray <divy@...lsio.com>
To: jeff@...zik.org
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
swise@...ngridcomputing.com
Subject: [PATCH 4/8 2.6.28] cxgb3 - simplify port type struct and usage
From: Divy Le Ray <divy@...lsio.com>
Second step in overall phy layer reorganization.
Clean up the port_type_info structure.
Support coextistence of clause 22 and clause 45 MDIO devices.
Select the type of MDIO transaction on a per transaction basis.
Signed-off-by: Divy Le Ray <divy@...lsio.com>
---
drivers/net/cxgb3/adapter.h | 2 -
drivers/net/cxgb3/ael1002.c | 16 ++++-
drivers/net/cxgb3/common.h | 21 ++----
drivers/net/cxgb3/cxgb3_main.c | 4 +
drivers/net/cxgb3/t3_hw.c | 133 ++++++++++++++++++++--------------------
drivers/net/cxgb3/vsc8211.c | 5 +-
6 files changed, 94 insertions(+), 87 deletions(-)
diff --git a/drivers/net/cxgb3/adapter.h b/drivers/net/cxgb3/adapter.h
index 02dd69b..455ef52 100644
--- a/drivers/net/cxgb3/adapter.h
+++ b/drivers/net/cxgb3/adapter.h
@@ -54,7 +54,6 @@ struct port_info {
struct adapter *adapter;
struct vlan_group *vlan_grp;
struct sge_qset *qs;
- const struct port_type_info *port_type;
u8 port_id;
u8 rx_csum_offload;
u8 nqsets;
@@ -282,6 +281,7 @@ int t3_offload_tx(struct t3cdev *tdev, struct sk_buff *skb);
void t3_os_ext_intr_handler(struct adapter *adapter);
void t3_os_link_changed(struct adapter *adapter, int port_id, int link_status,
int speed, int duplex, int fc);
+void t3_os_phymod_changed(struct adapter *adap, int port_id);
void t3_sge_start(struct adapter *adap);
void t3_sge_stop(struct adapter *adap);
diff --git a/drivers/net/cxgb3/ael1002.c b/drivers/net/cxgb3/ael1002.c
index bf22e56..f4e046e 100644
--- a/drivers/net/cxgb3/ael1002.c
+++ b/drivers/net/cxgb3/ael1002.c
@@ -122,7 +122,9 @@ static struct cphy_ops ael1002_ops = {
int t3_ael1002_phy_prep(struct cphy *phy, struct adapter *adapter,
int phy_addr, const struct mdio_ops *mdio_ops)
{
- cphy_init(phy, adapter, phy_addr, &ael1002_ops, mdio_ops);
+ cphy_init(phy, adapter, phy_addr, &ael1002_ops, mdio_ops,
+ SUPPORTED_10000baseT_Full | SUPPORTED_AUI | SUPPORTED_FIBRE,
+ "10GBASE-R");
ael100x_txon(phy);
return 0;
}
@@ -178,7 +180,9 @@ static struct cphy_ops ael1006_ops = {
int t3_ael1006_phy_prep(struct cphy *phy, struct adapter *adapter,
int phy_addr, const struct mdio_ops *mdio_ops)
{
- cphy_init(phy, adapter, phy_addr, &ael1006_ops, mdio_ops);
+ cphy_init(phy, adapter, phy_addr, &ael1006_ops, mdio_ops,
+ SUPPORTED_10000baseT_Full | SUPPORTED_AUI | SUPPORTED_FIBRE,
+ "10GBASE-SR");
ael100x_txon(phy);
return 0;
}
@@ -198,7 +202,9 @@ int t3_qt2045_phy_prep(struct cphy *phy, struct adapter *adapter,
{
unsigned int stat;
- cphy_init(phy, adapter, phy_addr, &qt2045_ops, mdio_ops);
+ cphy_init(phy, adapter, phy_addr, &qt2045_ops, mdio_ops,
+ SUPPORTED_10000baseT_Full | SUPPORTED_AUI | SUPPORTED_TP,
+ "10GBASE-CX4");
/*
* Some cards where the PHY is supposed to be at address 0 actually
@@ -256,6 +262,8 @@ static struct cphy_ops xaui_direct_ops = {
int t3_xaui_direct_phy_prep(struct cphy *phy, struct adapter *adapter,
int phy_addr, const struct mdio_ops *mdio_ops)
{
- cphy_init(phy, adapter, phy_addr, &xaui_direct_ops, mdio_ops);
+ cphy_init(phy, adapter, phy_addr, &xaui_direct_ops, mdio_ops,
+ SUPPORTED_10000baseT_Full | SUPPORTED_AUI | SUPPORTED_TP,
+ "10GBASE-CX4");
return 0;
}
diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index 78c10d3..e83a360 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -193,8 +193,6 @@ struct mdio_ops {
struct adapter_info {
unsigned char nports; /* # of ports */
unsigned char phy_base_addr; /* MDIO PHY base address */
- unsigned char mdien;
- unsigned char mdiinv;
unsigned int gpio_out; /* GPIO output settings */
unsigned int gpio_intr; /* GPIO IRQ enable mask */
unsigned long caps; /* adapter capabilities */
@@ -202,13 +200,6 @@ struct adapter_info {
const char *desc; /* product description */
};
-struct port_type_info {
- int (*phy_prep)(struct cphy *phy, struct adapter *adapter,
- int phy_addr, const struct mdio_ops *ops);
- unsigned int caps;
- const char *desc;
-};
-
struct mc5_stats {
unsigned long parity_err;
unsigned long active_rgn_full;
@@ -548,7 +539,6 @@ enum {
/* PHY operations */
struct cphy_ops {
- void (*destroy)(struct cphy *phy);
int (*reset)(struct cphy *phy, int wait);
int (*intr_enable)(struct cphy *phy);
@@ -569,8 +559,10 @@ struct cphy_ops {
/* A PHY instance */
struct cphy {
- int addr; /* PHY address */
+ int addr; /* PHY address */
+ unsigned int caps; /* PHY capabilities */
struct adapter *adapter; /* associated adapter */
+ const char *desc; /* PHY description */
unsigned long fifo_errors; /* FIFO over/under-flows */
const struct cphy_ops *ops; /* PHY operations */
int (*mdio_read)(struct adapter *adapter, int phy_addr, int mmd_addr,
@@ -595,10 +587,13 @@ static inline int mdio_write(struct cphy *phy, int mmd, int reg,
/* Convenience initializer */
static inline void cphy_init(struct cphy *phy, struct adapter *adapter,
int phy_addr, struct cphy_ops *phy_ops,
- const struct mdio_ops *mdio_ops)
+ const struct mdio_ops *mdio_ops,
+ unsigned int caps, const char *desc)
{
- phy->adapter = adapter;
phy->addr = phy_addr;
+ phy->caps = caps;
+ phy->adapter = adapter;
+ phy->desc = desc;
phy->ops = phy_ops;
if (mdio_ops) {
phy->mdio_read = mdio_ops->read;
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index fea2c71..5b8251d 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -2368,7 +2368,7 @@ static void check_link_status(struct adapter *adapter)
struct net_device *dev = adapter->port[i];
struct port_info *p = netdev_priv(dev);
- if (!(p->port_type->caps & SUPPORTED_IRQ) && netif_running(dev))
+ if (!(p->phy.caps & SUPPORTED_IRQ) && netif_running(dev))
t3_link_changed(adapter, i);
}
}
@@ -2731,7 +2731,7 @@ static void __devinit print_port_info(struct adapter *adap,
if (!test_bit(i, &adap->registered_device_map))
continue;
printk(KERN_INFO "%s: %s %s %sNIC (rev %d) %s%s\n",
- dev->name, ai->desc, pi->port_type->desc,
+ dev->name, ai->desc, pi->phy.desc,
is_offload(adap) ? "R" : "", adap->params.rev, buf,
(adap->flags & USING_MSIX) ? " MSI-X" :
(adap->flags & USING_MSI) ? " MSI" : "");
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index fa0a4b4..f7ced32 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -194,21 +194,18 @@ int t3_mc7_bd_read(struct mc7 *mc7, unsigned int start, unsigned int n,
static void mi1_init(struct adapter *adap, const struct adapter_info *ai)
{
u32 clkdiv = adap->params.vpd.cclk / (2 * adap->params.vpd.mdc) - 1;
- u32 val = F_PREEN | V_MDIINV(ai->mdiinv) | V_MDIEN(ai->mdien) |
- V_CLKDIV(clkdiv);
+ u32 val = F_PREEN | V_CLKDIV(clkdiv);
- if (!(ai->caps & SUPPORTED_10000baseT_Full))
- val |= V_ST(1);
t3_write_reg(adap, A_MI1_CFG, val);
}
-#define MDIO_ATTEMPTS 10
+#define MDIO_ATTEMPTS 20
/*
- * MI1 read/write operations for direct-addressed PHYs.
+ * MI1 read/write operations for clause 22 PHYs.
*/
-static int mi1_read(struct adapter *adapter, int phy_addr, int mmd_addr,
- int reg_addr, unsigned int *valp)
+static int t3_mi1_read(struct adapter *adapter, int phy_addr, int mmd_addr,
+ int reg_addr, unsigned int *valp)
{
int ret;
u32 addr = V_REGADDR(reg_addr) | V_PHYADDR(phy_addr);
@@ -217,16 +214,17 @@ static int mi1_read(struct adapter *adapter, int phy_addr, int mmd_addr,
return -EINVAL;
mutex_lock(&adapter->mdio_lock);
+ t3_set_reg_field(adapter, A_MI1_CFG, V_ST(M_ST), V_ST(1));
t3_write_reg(adapter, A_MI1_ADDR, addr);
t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(2));
- ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 20);
+ ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 10);
if (!ret)
*valp = t3_read_reg(adapter, A_MI1_DATA);
mutex_unlock(&adapter->mdio_lock);
return ret;
}
-static int mi1_write(struct adapter *adapter, int phy_addr, int mmd_addr,
+static int t3_mi1_write(struct adapter *adapter, int phy_addr, int mmd_addr,
int reg_addr, unsigned int val)
{
int ret;
@@ -236,37 +234,51 @@ static int mi1_write(struct adapter *adapter, int phy_addr, int mmd_addr,
return -EINVAL;
mutex_lock(&adapter->mdio_lock);
+ t3_set_reg_field(adapter, A_MI1_CFG, V_ST(M_ST), V_ST(1));
t3_write_reg(adapter, A_MI1_ADDR, addr);
t3_write_reg(adapter, A_MI1_DATA, val);
t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(1));
- ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 20);
+ ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 10);
mutex_unlock(&adapter->mdio_lock);
return ret;
}
static const struct mdio_ops mi1_mdio_ops = {
- mi1_read,
- mi1_write
+ t3_mi1_read,
+ t3_mi1_write
};
/*
+ * Performs the address cycle for clause 45 PHYs.
+ * Must be called with the MDIO_LOCK held.
+ */
+static int mi1_wr_addr(struct adapter *adapter, int phy_addr, int mmd_addr,
+ int reg_addr)
+{
+ u32 addr = V_REGADDR(mmd_addr) | V_PHYADDR(phy_addr);
+
+ t3_set_reg_field(adapter, A_MI1_CFG, V_ST(M_ST), 0);
+ t3_write_reg(adapter, A_MI1_ADDR, addr);
+ t3_write_reg(adapter, A_MI1_DATA, reg_addr);
+ t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(0));
+ return t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0,
+ MDIO_ATTEMPTS, 10);
+}
+
+/*
* MI1 read/write operations for indirect-addressed PHYs.
*/
static int mi1_ext_read(struct adapter *adapter, int phy_addr, int mmd_addr,
int reg_addr, unsigned int *valp)
{
int ret;
- u32 addr = V_REGADDR(mmd_addr) | V_PHYADDR(phy_addr);
mutex_lock(&adapter->mdio_lock);
- t3_write_reg(adapter, A_MI1_ADDR, addr);
- t3_write_reg(adapter, A_MI1_DATA, reg_addr);
- t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(0));
- ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 20);
+ ret = mi1_wr_addr(adapter, phy_addr, mmd_addr, reg_addr);
if (!ret) {
t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(3));
ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0,
- MDIO_ATTEMPTS, 20);
+ MDIO_ATTEMPTS, 10);
if (!ret)
*valp = t3_read_reg(adapter, A_MI1_DATA);
}
@@ -278,18 +290,14 @@ static int mi1_ext_write(struct adapter *adapter, int phy_addr, int mmd_addr,
int reg_addr, unsigned int val)
{
int ret;
- u32 addr = V_REGADDR(mmd_addr) | V_PHYADDR(phy_addr);
mutex_lock(&adapter->mdio_lock);
- t3_write_reg(adapter, A_MI1_ADDR, addr);
- t3_write_reg(adapter, A_MI1_DATA, reg_addr);
- t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(0));
- ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 20);
+ ret = mi1_wr_addr(adapter, phy_addr, mmd_addr, reg_addr);
if (!ret) {
t3_write_reg(adapter, A_MI1_DATA, val);
t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(1));
ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0,
- MDIO_ATTEMPTS, 20);
+ MDIO_ATTEMPTS, 10);
}
mutex_unlock(&adapter->mdio_lock);
return ret;
@@ -435,22 +443,22 @@ int t3_set_phy_speed_duplex(struct cphy *phy, int speed, int duplex)
}
static const struct adapter_info t3_adap_info[] = {
- {2, 0, 0, 0,
+ {2, 0,
F_GPIO2_OEN | F_GPIO4_OEN |
F_GPIO2_OUT_VAL | F_GPIO4_OUT_VAL, F_GPIO3 | F_GPIO5,
0,
&mi1_mdio_ops, "Chelsio PE9000"},
- {2, 0, 0, 0,
+ {2, 0,
F_GPIO2_OEN | F_GPIO4_OEN |
F_GPIO2_OUT_VAL | F_GPIO4_OUT_VAL, F_GPIO3 | F_GPIO5,
0,
&mi1_mdio_ops, "Chelsio T302"},
- {1, 0, 0, 0,
+ {1, 0,
F_GPIO1_OEN | F_GPIO6_OEN | F_GPIO7_OEN | F_GPIO10_OEN |
F_GPIO11_OEN | F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL,
0, SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
&mi1_mdio_ext_ops, "Chelsio T310"},
- {2, 0, 0, 0,
+ {2, 0,
F_GPIO1_OEN | F_GPIO2_OEN | F_GPIO4_OEN | F_GPIO5_OEN | F_GPIO6_OEN |
F_GPIO7_OEN | F_GPIO10_OEN | F_GPIO11_OEN | F_GPIO1_OUT_VAL |
F_GPIO5_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL, 0,
@@ -467,29 +475,23 @@ const struct adapter_info *t3_get_adapter_info(unsigned int id)
return id < ARRAY_SIZE(t3_adap_info) ? &t3_adap_info[id] : NULL;
}
-#define CAPS_1G (SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Full | \
- SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_MII)
-#define CAPS_10G (SUPPORTED_10000baseT_Full | SUPPORTED_AUI)
+struct port_type_info {
+ int (*phy_prep)(struct cphy *phy, struct adapter *adapter,
+ int phy_addr, const struct mdio_ops *ops);
+};
static const struct port_type_info port_types[] = {
- {NULL},
- {t3_ael1002_phy_prep, CAPS_10G | SUPPORTED_FIBRE,
- "10GBASE-XR"},
- {t3_vsc8211_phy_prep, CAPS_1G | SUPPORTED_TP | SUPPORTED_IRQ,
- "10/100/1000BASE-T"},
- {NULL, CAPS_1G | SUPPORTED_TP | SUPPORTED_IRQ,
- "10/100/1000BASE-T"},
- {t3_xaui_direct_phy_prep, CAPS_10G | SUPPORTED_TP, "10GBASE-CX4"},
- {NULL, CAPS_10G, "10GBASE-KX4"},
- {t3_qt2045_phy_prep, CAPS_10G | SUPPORTED_TP, "10GBASE-CX4"},
- {t3_ael1006_phy_prep, CAPS_10G | SUPPORTED_FIBRE,
- "10GBASE-SR"},
- {NULL, CAPS_10G | SUPPORTED_TP, "10GBASE-CX4"},
+ { NULL },
+ { t3_ael1002_phy_prep },
+ { t3_vsc8211_phy_prep },
+ { NULL},
+ { t3_xaui_direct_phy_prep },
+ { NULL },
+ { t3_qt2045_phy_prep },
+ { t3_ael1006_phy_prep },
+ { NULL },
};
-#undef CAPS_1G
-#undef CAPS_10G
-
#define VPD_ENTRY(name, len) \
u8 name##_kword[2]; u8 name##_len; u8 name##_data[len]
@@ -1691,7 +1693,7 @@ int t3_phy_intr_handler(struct adapter *adapter)
mask = gpi - (gpi & (gpi - 1));
gpi -= mask;
- if (!(p->port_type->caps & SUPPORTED_IRQ))
+ if (!(p->phy.caps & SUPPORTED_IRQ))
continue;
if (cause & mask) {
@@ -3556,7 +3558,7 @@ int t3_prep_adapter(struct adapter *adapter, const struct adapter_info *ai,
int reset)
{
int ret;
- unsigned int i, j = 0;
+ unsigned int i, j = -1;
get_pci_mode(adapter, &adapter->params.pci);
@@ -3620,19 +3622,18 @@ int t3_prep_adapter(struct adapter *adapter, const struct adapter_info *ai,
for_each_port(adapter, i) {
u8 hw_addr[6];
+ const struct port_type_info *pti;
struct port_info *p = adap2pinfo(adapter, i);
- while (!adapter->params.vpd.port_type[j])
- ++j;
+ while (!adapter->params.vpd.port_type[++j])
+ ;
- p->port_type = &port_types[adapter->params.vpd.port_type[j]];
- ret = p->port_type->phy_prep(&p->phy, adapter,
- ai->phy_base_addr + j,
- ai->mdio_ops);
+ pti = &port_types[adapter->params.vpd.port_type[j]];
+ ret = pti->phy_prep(&p->phy, adapter, ai->phy_base_addr + j,
+ ai->mdio_ops);
if (ret)
return ret;
mac_prep(&p->mac, adapter, j);
- ++j;
/*
* The VPD EEPROM stores the base Ethernet address for the
@@ -3646,9 +3647,9 @@ int t3_prep_adapter(struct adapter *adapter, const struct adapter_info *ai,
ETH_ALEN);
memcpy(adapter->port[i]->perm_addr, hw_addr,
ETH_ALEN);
- init_link_config(&p->link_config, p->port_type->caps);
+ init_link_config(&p->link_config, p->phy.caps);
p->phy.ops->power_down(&p->phy, 1);
- if (!(p->port_type->caps & SUPPORTED_IRQ))
+ if (!(p->phy.caps & SUPPORTED_IRQ))
adapter->params.linkpoll_period = 10;
}
@@ -3664,7 +3665,7 @@ void t3_led_ready(struct adapter *adapter)
int t3_replay_prep_adapter(struct adapter *adapter)
{
const struct adapter_info *ai = adapter->params.info;
- unsigned int i, j = 0;
+ unsigned int i, j = -1;
int ret;
early_hw_init(adapter, ai);
@@ -3673,17 +3674,17 @@ int t3_replay_prep_adapter(struct adapter *adapter)
return ret;
for_each_port(adapter, i) {
+ const struct port_type_info *pti;
struct port_info *p = adap2pinfo(adapter, i);
- while (!adapter->params.vpd.port_type[j])
- ++j;
- ret = p->port_type->phy_prep(&p->phy, adapter,
- ai->phy_base_addr + j,
- ai->mdio_ops);
+ while (!adapter->params.vpd.port_type[++j])
+ ;
+
+ pti = &port_types[adapter->params.vpd.port_type[j]];
+ ret = pti->phy_prep(&p->phy, adapter, p->phy.addr, NULL);
if (ret)
return ret;
p->phy.ops->power_down(&p->phy, 1);
- ++j;
}
return 0;
diff --git a/drivers/net/cxgb3/vsc8211.c b/drivers/net/cxgb3/vsc8211.c
index 8f1b0d3..68e6334 100644
--- a/drivers/net/cxgb3/vsc8211.c
+++ b/drivers/net/cxgb3/vsc8211.c
@@ -224,6 +224,9 @@ static struct cphy_ops vsc8211_ops = {
int t3_vsc8211_phy_prep(struct cphy *phy, struct adapter *adapter,
int phy_addr, const struct mdio_ops *mdio_ops)
{
- cphy_init(phy, adapter, phy_addr, &vsc8211_ops, mdio_ops);
+ cphy_init(phy, adapter, phy_addr, &vsc8211_ops, mdio_ops,
+ SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Full |
+ SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_MII |
+ SUPPORTED_TP | SUPPORTED_IRQ, "10/100/1000BASE-T");
return 0;
}
--
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