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ixgbe: add new media type.

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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.

v2: cleaned up logging message based on feedback from David Miller

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Don Skidmore 2013-07-31 02:17:40 +00:00 committed by Jeff Kirsher
parent 73d80953df
commit 4e8e1bca6e
4 changed files with 95 additions and 7 deletions
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79
drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
View File

@ -526,6 +526,75 @@ 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 write Rx Rate Select RS0\n");
goto out;
}
/* Set RS1 */
status = hw->phy.ops.read_i2c_byte(hw, IXGBE_SFF_SFF_8472_ESCB,
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
@ -573,9 +642,14 @@ static s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
goto out;
/* Set the module link speed */
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 +699,15 @@ static s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
goto out;
/* Set the module link speed */
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);

3
drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
View File

@ -72,6 +72,7 @@ bool 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);

5
drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
View File

@ -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

1
drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
View File

@ -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,