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RDMA/nes: Add support for SFP+ PHY

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This patch enables the iw_nes module for NetEffect RNICs to support
additional PHYs including SFP+ (referred to as ARGUS in the code).

Signed-off-by: Eric Schneider <eric.schneider@neteffect.com>
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Eric Schneider
2008-04-29 13:46:54 -07:00
committed by Roland Dreier
parent 37dab4112d
commit 0e1de5d62e
5 changed files with 259 additions and 64 deletions
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231
drivers/infiniband/hw/nes/nes_hw.c
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@@ -1208,11 +1208,16 @@ int nes_init_phy(struct nes_device *nesdev)
{
struct nes_adapter *nesadapter = nesdev->nesadapter;
u32 counter = 0;
u32 sds_common_control0;
u32 mac_index = nesdev->mac_index;
u32 tx_config;
u32 tx_config = 0;
u16 phy_data;
u32 temp_phy_data = 0;
u32 temp_phy_data2 = 0;
u32 i = 0;
if (nesadapter->OneG_Mode) {
if ((nesadapter->OneG_Mode) &&
(nesadapter->phy_type[mac_index] != NES_PHY_TYPE_PUMA_1G)) {
nes_debug(NES_DBG_PHY, "1G PHY, mac_index = %d.\n", mac_index);
if (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_1G) {
printk(PFX "%s: Programming mdc config for 1G\n", __func__);
@@ -1278,12 +1283,126 @@ int nes_init_phy(struct nes_device *nesdev)
nes_read_1G_phy_reg(nesdev, 0, nesadapter->phy_index[mac_index], &phy_data);
nes_write_1G_phy_reg(nesdev, 0, nesadapter->phy_index[mac_index], phy_data | 0x0300);
} else {
if (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_IRIS) {
if ((nesadapter->phy_type[mac_index] == NES_PHY_TYPE_IRIS) ||
(nesadapter->phy_type[mac_index] == NES_PHY_TYPE_ARGUS)) {
/* setup 10G MDIO operation */
tx_config = nes_read_indexed(nesdev, NES_IDX_MAC_TX_CONFIG);
tx_config |= 0x14;
nes_write_indexed(nesdev, NES_IDX_MAC_TX_CONFIG, tx_config);
}
if ((nesadapter->phy_type[mac_index] == NES_PHY_TYPE_ARGUS)) {
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x3, 0xd7ee);
temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
mdelay(10);
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x3, 0xd7ee);
temp_phy_data2 = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
/*
* if firmware is already running (like from a
* driver un-load/load, don't do anything.
*/
if (temp_phy_data == temp_phy_data2) {
/* configure QT2505 AMCC PHY */
nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0x0000, 0x8000);
nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xc300, 0x0000);
nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xc302, 0x0044);
nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xc318, 0x0052);
nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xc319, 0x0008);
nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xc31a, 0x0098);
nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x3, 0x0026, 0x0E00);
nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x3, 0x0027, 0x0000);
nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x3, 0x0028, 0xA528);
/*
* remove micro from reset; chip boots from ROM,
* uploads EEPROM f/w image, uC executes f/w
*/
nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xc300, 0x0002);
/*
* wait for heart beat to start to
* know loading is done
*/
counter = 0;
do {
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x3, 0xd7ee);
temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
if (counter++ > 1000) {
nes_debug(NES_DBG_PHY, "AMCC PHY- breaking from heartbeat check <this is bad!!!> \n");
break;
}
mdelay(100);
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x3, 0xd7ee);
temp_phy_data2 = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
} while ((temp_phy_data2 == temp_phy_data));
/*
* wait for tracking to start to know
* f/w is good to go
*/
counter = 0;
do {
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x3, 0xd7fd);
temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
if (counter++ > 1000) {
nes_debug(NES_DBG_PHY, "AMCC PHY- breaking from status check <this is bad!!!> \n");
break;
}
mdelay(1000);
/*
* nes_debug(NES_DBG_PHY, "AMCC PHY- phy_status not ready yet = 0x%02X\n",
* temp_phy_data);
*/
} while (((temp_phy_data & 0xff) != 0x50) && ((temp_phy_data & 0xff) != 0x70));
/* set LOS Control invert RXLOSB_I_PADINV */
nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xd003, 0x0000);
/* set LOS Control to mask of RXLOSB_I */
nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xc314, 0x0042);
/* set LED1 to input mode (LED1 and LED2 share same LED) */
nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xd006, 0x0007);
/* set LED2 to RX link_status and activity */
nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xd007, 0x000A);
/* set LED3 to RX link_status */
nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xd008, 0x0009);
/*
* reset the res-calibration on t2
* serdes; ensures it is stable after
* the amcc phy is stable
*/
sds_common_control0 = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0);
sds_common_control0 |= 0x1;
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0, sds_common_control0);
/* release the res-calibration reset */
sds_common_control0 &= 0xfffffffe;
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0, sds_common_control0);
i = 0;
while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET) & 0x00000040) != 0x00000040)
&& (i++ < 5000)) {
/* mdelay(1); */
}
/*
* wait for link train done before moving on,
* or will get an interupt storm
*/
counter = 0;
do {
temp_phy_data = nes_read_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0 +
(0x200 * (nesdev->mac_index & 1)));
if (counter++ > 1000) {
nes_debug(NES_DBG_PHY, "AMCC PHY- breaking from link train wait <this is bad, link didnt train!!!>\n");
break;
}
mdelay(1);
} while (((temp_phy_data & 0x0f1f0000) != 0x0f0f0000));
}
}
}
return 0;
}
@@ -2107,6 +2226,8 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
u32 u32temp;
u16 phy_data;
u16 temp_phy_data;
u32 pcs_val = 0x0f0f0000;
u32 pcs_mask = 0x0f1f0000;
spin_lock_irqsave(&nesadapter->phy_lock, flags);
if (nesadapter->mac_sw_state[mac_number] != NES_MAC_SW_IDLE) {
@@ -2170,13 +2291,30 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
nes_debug(NES_DBG_PHY, "Eth SERDES Common Status: 0=0x%08X, 1=0x%08X\n",
nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS0),
nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS0+0x200));
pcs_control_status = nes_read_indexed(nesdev,
NES_IDX_PHY_PCS_CONTROL_STATUS0 + ((mac_index&1)*0x200));
pcs_control_status = nes_read_indexed(nesdev,
NES_IDX_PHY_PCS_CONTROL_STATUS0 + ((mac_index&1)*0x200));
if (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_PUMA_1G) {
switch (mac_index) {
case 1:
case 3:
pcs_control_status = nes_read_indexed(nesdev,
NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
break;
default:
pcs_control_status = nes_read_indexed(nesdev,
NES_IDX_PHY_PCS_CONTROL_STATUS0);
break;
}
} else {
pcs_control_status = nes_read_indexed(nesdev,
NES_IDX_PHY_PCS_CONTROL_STATUS0 + ((mac_index & 1) * 0x200));
pcs_control_status = nes_read_indexed(nesdev,
NES_IDX_PHY_PCS_CONTROL_STATUS0 + ((mac_index & 1) * 0x200));
}
nes_debug(NES_DBG_PHY, "PCS PHY Control/Status%u: 0x%08X\n",
mac_index, pcs_control_status);
if (nesadapter->OneG_Mode) {
if ((nesadapter->OneG_Mode) &&
(nesadapter->phy_type[mac_index] != NES_PHY_TYPE_PUMA_1G)) {
u32temp = 0x01010000;
if (nesadapter->port_count > 2) {
u32temp |= 0x02020000;
@@ -2185,24 +2323,59 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
phy_data = 0;
nes_debug(NES_DBG_PHY, "PCS says the link is down\n");
}
} else if (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_IRIS) {
nes_read_10G_phy_reg(nesdev, 1, nesadapter->phy_index[mac_index]);
temp_phy_data = (u16)nes_read_indexed(nesdev,
NES_IDX_MAC_MDIO_CONTROL);
u32temp = 20;
do {
nes_read_10G_phy_reg(nesdev, 1, nesadapter->phy_index[mac_index]);
phy_data = (u16)nes_read_indexed(nesdev,
NES_IDX_MAC_MDIO_CONTROL);
if ((phy_data == temp_phy_data) || (!(--u32temp)))
break;
temp_phy_data = phy_data;
} while (1);
nes_debug(NES_DBG_PHY, "%s: Phy data = 0x%04X, link was %s.\n",
__func__, phy_data, nesadapter->mac_link_down ? "DOWN" : "UP");
} else {
phy_data = (0x0f0f0000 == (pcs_control_status & 0x0f1f0000)) ? 4 : 0;
switch (nesadapter->phy_type[mac_index]) {
case NES_PHY_TYPE_IRIS:
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 1);
temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
u32temp = 20;
do {
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 1);
phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
if ((phy_data == temp_phy_data) || (!(--u32temp)))
break;
temp_phy_data = phy_data;
} while (1);
nes_debug(NES_DBG_PHY, "%s: Phy data = 0x%04X, link was %s.\n",
__func__, phy_data, nesadapter->mac_link_down[mac_index] ? "DOWN" : "UP");
break;
case NES_PHY_TYPE_ARGUS:
/* clear the alarms */
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0x0008);
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0xc001);
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0xc002);
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0xc005);
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0xc006);
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9003);
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9004);
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9005);
/* check link status */
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 1);
temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
u32temp = 100;
do {
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 1);
phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
if ((phy_data == temp_phy_data) || (!(--u32temp)))
break;
temp_phy_data = phy_data;
} while (1);
nes_debug(NES_DBG_PHY, "%s: Phy data = 0x%04X, link was %s.\n",
__func__, phy_data, nesadapter->mac_link_down ? "DOWN" : "UP");
break;
case NES_PHY_TYPE_PUMA_1G:
if (mac_index < 2)
pcs_val = pcs_mask = 0x01010000;
else
pcs_val = pcs_mask = 0x02020000;
/* fall through */
default:
phy_data = (pcs_val == (pcs_control_status & pcs_mask)) ? 0x4 : 0x0;
break;
}
}
if (phy_data & 0x0004) {
@@ -2211,8 +2384,8 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
nes_debug(NES_DBG_PHY, "The Link is UP!!. linkup was %d\n",
nesvnic->linkup);
if (nesvnic->linkup == 0) {
printk(PFX "The Link is now up for port %u, netdev %p.\n",
mac_index, nesvnic->netdev);
printk(PFX "The Link is now up for port %s, netdev %p.\n",
nesvnic->netdev->name, nesvnic->netdev);
if (netif_queue_stopped(nesvnic->netdev))
netif_start_queue(nesvnic->netdev);
nesvnic->linkup = 1;
@@ -2225,8 +2398,8 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
nes_debug(NES_DBG_PHY, "The Link is Down!!. linkup was %d\n",
nesvnic->linkup);
if (nesvnic->linkup == 1) {
printk(PFX "The Link is now down for port %u, netdev %p.\n",
mac_index, nesvnic->netdev);
printk(PFX "The Link is now down for port %s, netdev %p.\n",
nesvnic->netdev->name, nesvnic->netdev);
if (!(netif_queue_stopped(nesvnic->netdev)))
netif_stop_queue(nesvnic->netdev);
nesvnic->linkup = 0;