This is a note to let you know that I've just added the patch titled
[PATCH 012/135] igb: use the correct i210 register for EEMNGCTL
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
0012-igb-use-the-correct-i210-register-for-EEMNGCTL.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 379a0140a9487b32ae1f3cda40a90def2edcae9b Mon Sep 17 00:00:00 2001
From: Todd Fujinaka <todd.fujinaka@xxxxxxxxx>
Date: Fri, 18 Sep 2015 15:43:51 -0700
Subject: [PATCH 012/135] igb: use the correct i210 register for EEMNGCTL
[ Upstream commit 08c991297582114a6e1220f913eec91789c4eac6 ]
The i210 has two EEPROM access registers that are located in
non-standard offsets: EEARBC and EEMNGCTL. EEARBC was fixed previously
and EEMNGCTL should also be corrected.
Reported-by: Roman Hodek <roman.aud@xxxxxxxxxxx>
Signed-off-by: Todd Fujinaka <todd.fujinaka@xxxxxxxxx>
Tested-by: Aaron Brown <aaron.f.brown@xxxxxxxxx>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@xxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/intel/igb/e1000_82575.c | 1 +
drivers/net/ethernet/intel/igb/e1000_i210.c | 27 +++++++++++++++++++++++++++
drivers/net/ethernet/intel/igb/e1000_i210.h | 1 +
drivers/net/ethernet/intel/igb/e1000_regs.h | 1 +
4 files changed, 30 insertions(+)
--- a/drivers/net/ethernet/intel/igb/e1000_82575.c
+++ b/drivers/net/ethernet/intel/igb/e1000_82575.c
@@ -294,6 +294,7 @@ static s32 igb_init_phy_params_82575(str
case I210_I_PHY_ID:
phy->type = e1000_phy_i210;
phy->ops.check_polarity = igb_check_polarity_m88;
+ phy->ops.get_cfg_done = igb_get_cfg_done_i210;
phy->ops.get_phy_info = igb_get_phy_info_m88;
phy->ops.get_cable_length = igb_get_cable_length_m88_gen2;
phy->ops.set_d0_lplu_state = igb_set_d0_lplu_state_82580;
--- a/drivers/net/ethernet/intel/igb/e1000_i210.c
+++ b/drivers/net/ethernet/intel/igb/e1000_i210.c
@@ -900,3 +900,30 @@ s32 igb_pll_workaround_i210(struct e1000
wr32(E1000_MDICNFG, mdicnfg);
return ret_val;
}
+
+/**
+ * igb_get_cfg_done_i210 - Read config done bit
+ * @hw: pointer to the HW structure
+ *
+ * Read the management control register for the config done bit for
+ * completion status. NOTE: silicon which is EEPROM-less will fail trying
+ * to read the config done bit, so an error is *ONLY* logged and returns
+ * 0. If we were to return with error, EEPROM-less silicon
+ * would not be able to be reset or change link.
+ **/
+s32 igb_get_cfg_done_i210(struct e1000_hw *hw)
+{
+ s32 timeout = PHY_CFG_TIMEOUT;
+ u32 mask = E1000_NVM_CFG_DONE_PORT_0;
+
+ while (timeout) {
+ if (rd32(E1000_EEMNGCTL_I210) & mask)
+ break;
+ usleep_range(1000, 2000);
+ timeout--;
+ }
+ if (!timeout)
+ hw_dbg("MNG configuration cycle has not completed.\n");
+
+ return 0;
+}
--- a/drivers/net/ethernet/intel/igb/e1000_i210.h
+++ b/drivers/net/ethernet/intel/igb/e1000_i210.h
@@ -34,6 +34,7 @@ s32 igb_write_xmdio_reg(struct e1000_hw
s32 igb_init_nvm_params_i210(struct e1000_hw *hw);
bool igb_get_flash_presence_i210(struct e1000_hw *hw);
s32 igb_pll_workaround_i210(struct e1000_hw *hw);
+s32 igb_get_cfg_done_i210(struct e1000_hw *hw);
#define E1000_STM_OPCODE 0xDB00
#define E1000_EEPROM_FLASH_SIZE_WORD 0x11
--- a/drivers/net/ethernet/intel/igb/e1000_regs.h
+++ b/drivers/net/ethernet/intel/igb/e1000_regs.h
@@ -66,6 +66,7 @@
#define E1000_PBA 0x01000 /* Packet Buffer Allocation - RW */
#define E1000_PBS 0x01008 /* Packet Buffer Size */
#define E1000_EEMNGCTL 0x01010 /* MNG EEprom Control */
+#define E1000_EEMNGCTL_I210 0x12030 /* MNG EEprom Control */
#define E1000_EEARBC_I210 0x12024 /* EEPROM Auto Read Bus Control */
#define E1000_EEWR 0x0102C /* EEPROM Write Register - RW */
#define E1000_I2CCMD 0x01028 /* SFPI2C Command Register - RW */
Patches currently in stable-queue which might be from todd.fujinaka@xxxxxxxxx are
queue-4.4/0012-igb-use-the-correct-i210-register-for-EEMNGCTL.patch
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