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Date: Mon, 29 Jul 2013 05:52:00 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: Don Skidmore <donald.c.skidmore@...el.com>, netdev@...r.kernel.org,
gospo@...hat.com, sassmann@...hat.com,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 04/15] ixgbe: add new media type
From: Don Skidmore <donald.c.skidmore@...el.com>
This patch adds support for a new media type fiber_fixed. This is useful
to avoid all the SFP+ hot plug support path on devices who's fix fiber need
not worry about such things. This patch is needed for a following patch
that adds support for "fiber_fixed" devices.
Signed-off-by: Don Skidmore <donald.c.skidmore@...el.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c | 84 ++++++++++++++++++++++---
drivers/net/ethernet/intel/ixgbe/ixgbe_common.c | 3 +
drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h | 5 ++
drivers/net/ethernet/intel/ixgbe/ixgbe_type.h | 1 +
4 files changed, 86 insertions(+), 7 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
index 0b82d38..b92765b 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
@@ -527,6 +527,66 @@ static void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
}
/**
+ * ixgbe_set_fiber_fixed_speed - Set module link speed for fixed fiber
+ * @hw: pointer to hardware structure
+ * @speed: link speed to set
+ *
+ * We set the module speed differently for fixed fiber. For other
+ * multi-speed devices we don't have an error value so here if we
+ * detect an error we just log it and exit.
+ */
+static void ixgbe_set_fiber_fixed_speed(struct ixgbe_hw *hw,
+ ixgbe_link_speed speed)
+{
+ s32 status;
+ u8 rs, eeprom_data;
+
+ switch (speed) {
+ case IXGBE_LINK_SPEED_10GB_FULL:
+ /* one bit mask same as setting on */
+ rs = IXGBE_SFF_SOFT_RS_SELECT_10G;
+ break;
+ case IXGBE_LINK_SPEED_1GB_FULL:
+ rs = IXGBE_SFF_SOFT_RS_SELECT_1G;
+ break;
+ default:
+ hw_dbg(hw, "Invalid fixed module speed\n");
+ return;
+ }
+
+ /* Set RS0 */
+ status = hw->phy.ops.read_i2c_byte(hw, IXGBE_SFF_SFF_8472_OSCB,
+ IXGBE_I2C_EEPROM_DEV_ADDR2,
+ &eeprom_data);
+ if (status) {
+ hw_dbg(hw, "Failed to read Rx Rate Select RS0\n");
+ goto out;
+ }
+
+ eeprom_data = (eeprom_data & ~IXGBE_SFF_SOFT_RS_SELECT_MASK) & rs;
+
+ status = hw->phy.ops.write_i2c_byte(hw, IXGBE_SFF_SFF_8472_OSCB,
+ IXGBE_I2C_EEPROM_DEV_ADDR2,
+ eeprom_data);
+ if (status) {
+ hw_dbg(hw, "Failed to read Rx Rate Select RS1\n");
+ goto out;
+ }
+
+ eeprom_data = (eeprom_data & ~IXGBE_SFF_SOFT_RS_SELECT_MASK) & rs;
+
+ status = hw->phy.ops.write_i2c_byte(hw, IXGBE_SFF_SFF_8472_ESCB,
+ IXGBE_I2C_EEPROM_DEV_ADDR2,
+ eeprom_data);
+ if (status) {
+ hw_dbg(hw, "Failed to write Rx Rate Select RS1\n");
+ goto out;
+ }
+out:
+ return;
+}
+
+/**
* ixgbe_setup_mac_link_multispeed_fiber - Set MAC link speed
* @hw: pointer to hardware structure
* @speed: new link speed
@@ -573,9 +633,14 @@ static s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
goto out;
/* Set the module link speed */
- esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
- IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
- IXGBE_WRITE_FLUSH(hw);
+ if (hw->phy.media_type == ixgbe_media_type_fiber_fixed) {
+ ixgbe_set_fiber_fixed_speed(hw,
+ IXGBE_LINK_SPEED_10GB_FULL);
+ } else {
+ esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
+ IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
+ IXGBE_WRITE_FLUSH(hw);
+ }
/* Allow module to change analog characteristics (1G->10G) */
msleep(40);
@@ -625,10 +690,15 @@ static s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
goto out;
/* Set the module link speed */
- esdp_reg &= ~IXGBE_ESDP_SDP5;
- esdp_reg |= IXGBE_ESDP_SDP5_DIR;
- IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
- IXGBE_WRITE_FLUSH(hw);
+ if (hw->phy.media_type == ixgbe_media_type_fiber_fixed) {
+ ixgbe_set_fiber_fixed_speed(hw,
+ IXGBE_LINK_SPEED_1GB_FULL);
+ } else {
+ esdp_reg &= ~IXGBE_ESDP_SDP5;
+ esdp_reg |= IXGBE_ESDP_SDP5_DIR;
+ IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
+ IXGBE_WRITE_FLUSH(hw);
+ }
/* Allow module to change analog characteristics (10G->1G) */
msleep(40);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
index 3c6859f..6e5d4bc 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
@@ -72,6 +72,7 @@ s32 ixgbe_device_supports_autoneg_fc(struct ixgbe_hw *hw)
bool link_up;
switch (hw->phy.media_type) {
+ case ixgbe_media_type_fiber_fixed:
case ixgbe_media_type_fiber:
hw->mac.ops.check_link(hw, &speed, &link_up, false);
/* if link is down, assume supported */
@@ -138,6 +139,7 @@ static s32 ixgbe_setup_fc(struct ixgbe_hw *hw)
* we link at 10G, the 1G advertisement is harmless and vice versa.
*/
switch (hw->phy.media_type) {
+ case ixgbe_media_type_fiber_fixed:
case ixgbe_media_type_fiber:
case ixgbe_media_type_backplane:
reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
@@ -2404,6 +2406,7 @@ void ixgbe_fc_autoneg(struct ixgbe_hw *hw)
switch (hw->phy.media_type) {
/* Autoneg flow control on fiber adapters */
+ case ixgbe_media_type_fiber_fixed:
case ixgbe_media_type_fiber:
if (speed == IXGBE_LINK_SPEED_1GB_FULL)
ret_val = ixgbe_fc_autoneg_fiber(hw);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
index 886a343..046a01e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
@@ -44,6 +44,8 @@
#define IXGBE_SFF_CABLE_SPEC_COMP 0x3C
#define IXGBE_SFF_SFF_8472_SWAP 0x5C
#define IXGBE_SFF_SFF_8472_COMP 0x5E
+#define IXGBE_SFF_SFF_8472_OSCB 0x6E
+#define IXGBE_SFF_SFF_8472_ESCB 0x76
/* Bitmasks */
#define IXGBE_SFF_DA_PASSIVE_CABLE 0x4
@@ -54,6 +56,9 @@
#define IXGBE_SFF_1GBASET_CAPABLE 0x8
#define IXGBE_SFF_10GBASESR_CAPABLE 0x10
#define IXGBE_SFF_10GBASELR_CAPABLE 0x20
+#define IXGBE_SFF_SOFT_RS_SELECT_MASK 0x8
+#define IXGBE_SFF_SOFT_RS_SELECT_10G 0x8
+#define IXGBE_SFF_SOFT_RS_SELECT_1G 0x0
#define IXGBE_SFF_ADDRESSING_MODE 0x4
#define IXGBE_I2C_EEPROM_READ_MASK 0x100
#define IXGBE_I2C_EEPROM_STATUS_MASK 0x3
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
index 70c6aa3..8968ea0 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
@@ -2622,6 +2622,7 @@ enum ixgbe_sfp_type {
enum ixgbe_media_type {
ixgbe_media_type_unknown = 0,
ixgbe_media_type_fiber,
+ ixgbe_media_type_fiber_fixed,
ixgbe_media_type_fiber_lco,
ixgbe_media_type_copper,
ixgbe_media_type_backplane,
--
1.7.11.7
--
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