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-rw-r--r--drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c2
-rw-r--r--drivers/net/ethernet/intel/fm10k/fm10k_pf.c24
-rw-r--r--drivers/net/ethernet/intel/fm10k/fm10k_type.h1
-rw-r--r--drivers/net/ethernet/intel/fm10k/fm10k_vf.c12
4 files changed, 24 insertions, 15 deletions
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
index 9b5195435c87..c04cbe9c9f7c 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
@@ -76,6 +76,8 @@ static const struct fm10k_stats fm10k_gstrings_global_stats[] = {
FM10K_STAT("mac_rules_used", hw.swapi.mac.used),
FM10K_STAT("mac_rules_avail", hw.swapi.mac.avail),
+ FM10K_STAT("reset_while_pending", hw.mac.reset_while_pending),
+
FM10K_STAT("tx_hang_count", tx_timeout_count),
};
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pf.c b/drivers/net/ethernet/intel/fm10k/fm10k_pf.c
index 69e2c822db00..7fbd94ba6745 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_pf.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_pf.c
@@ -51,8 +51,12 @@ static s32 fm10k_reset_hw_pf(struct fm10k_hw *hw)
/* shut down all rings */
err = fm10k_disable_queues_generic(hw, FM10K_MAX_QUEUES);
- if (err)
+ if (err == FM10K_ERR_REQUESTS_PENDING) {
+ hw->mac.reset_while_pending++;
+ goto force_reset;
+ } else if (err) {
return err;
+ }
/* Verify that DMA is no longer active */
reg = fm10k_read_reg(hw, FM10K_DMA_CTRL);
@@ -62,27 +66,27 @@ static s32 fm10k_reset_hw_pf(struct fm10k_hw *hw)
/* verify the switch is ready for reset */
reg = fm10k_read_reg(hw, FM10K_DMA_CTRL2);
if (!(reg & FM10K_DMA_CTRL2_SWITCH_READY))
- goto out;
+ return FM10K_ERR_DMA_PENDING;
+force_reset:
/* Inititate data path reset */
- reg |= FM10K_DMA_CTRL_DATAPATH_RESET;
+ reg = FM10K_DMA_CTRL_DATAPATH_RESET;
fm10k_write_reg(hw, FM10K_DMA_CTRL, reg);
/* Flush write and allow 100us for reset to complete */
fm10k_write_flush(hw);
udelay(FM10K_RESET_TIMEOUT);
- /* Verify we made it out of reset */
- reg = fm10k_read_reg(hw, FM10K_IP);
- if (!(reg & FM10K_IP_NOTINRESET))
- err = FM10K_ERR_RESET_FAILED;
-
/* Reset mailbox global interrupts */
reg = FM10K_MBX_GLOBAL_REQ_INTERRUPT | FM10K_MBX_GLOBAL_ACK_INTERRUPT;
fm10k_write_reg(hw, FM10K_GMBX, reg);
-out:
- return err;
+ /* Verify we made it out of reset */
+ reg = fm10k_read_reg(hw, FM10K_IP);
+ if (!(reg & FM10K_IP_NOTINRESET))
+ return FM10K_ERR_RESET_FAILED;
+
+ return 0;
}
/**
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_type.h b/drivers/net/ethernet/intel/fm10k/fm10k_type.h
index b8bc06183720..1d65ad85d72e 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_type.h
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_type.h
@@ -562,6 +562,7 @@ struct fm10k_mac_info {
bool tx_ready;
u32 dglort_map;
u8 itr_scale;
+ u64 reset_while_pending;
};
struct fm10k_swapi_table_info {
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_vf.c b/drivers/net/ethernet/intel/fm10k/fm10k_vf.c
index 3b06685ea63b..337ba65a9411 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_vf.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_vf.c
@@ -34,7 +34,7 @@ static s32 fm10k_stop_hw_vf(struct fm10k_hw *hw)
/* we need to disable the queues before taking further steps */
err = fm10k_stop_hw_generic(hw);
- if (err)
+ if (err && err != FM10K_ERR_REQUESTS_PENDING)
return err;
/* If permanent address is set then we need to restore it */
@@ -67,7 +67,7 @@ static s32 fm10k_stop_hw_vf(struct fm10k_hw *hw)
fm10k_write_reg(hw, FM10K_TDLEN(i), tdlen);
}
- return 0;
+ return err;
}
/**
@@ -83,7 +83,9 @@ static s32 fm10k_reset_hw_vf(struct fm10k_hw *hw)
/* shut down queues we own and reset DMA configuration */
err = fm10k_stop_hw_vf(hw);
- if (err)
+ if (err == FM10K_ERR_REQUESTS_PENDING)
+ hw->mac.reset_while_pending++;
+ else if (err)
return err;
/* Inititate VF reset */
@@ -96,9 +98,9 @@ static s32 fm10k_reset_hw_vf(struct fm10k_hw *hw)
/* Clear reset bit and verify it was cleared */
fm10k_write_reg(hw, FM10K_VFCTRL, 0);
if (fm10k_read_reg(hw, FM10K_VFCTRL) & FM10K_VFCTRL_RST)
- err = FM10K_ERR_RESET_FAILED;
+ return FM10K_ERR_RESET_FAILED;
- return err;
+ return 0;
}
/**