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path: root/drivers/net/e1000e/lib.c
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Diffstat (limited to 'drivers/net/e1000e/lib.c')
-rw-r--r--drivers/net/e1000e/lib.c54
1 files changed, 38 insertions, 16 deletions
diff --git a/drivers/net/e1000e/lib.c b/drivers/net/e1000e/lib.c
index a86c17548c1e..2fa9b36a2c5a 100644
--- a/drivers/net/e1000e/lib.c
+++ b/drivers/net/e1000e/lib.c
@@ -125,6 +125,7 @@ void e1000_write_vfta_generic(struct e1000_hw *hw, u32 offset, u32 value)
void e1000e_init_rx_addrs(struct e1000_hw *hw, u16 rar_count)
{
u32 i;
+ u8 mac_addr[ETH_ALEN] = {0};
/* Setup the receive address */
e_dbg("Programming MAC Address into RAR[0]\n");
@@ -133,12 +134,8 @@ void e1000e_init_rx_addrs(struct e1000_hw *hw, u16 rar_count)
/* Zero out the other (rar_entry_count - 1) receive addresses */
e_dbg("Clearing RAR[1-%u]\n", rar_count-1);
- for (i = 1; i < rar_count; i++) {
- E1000_WRITE_REG_ARRAY(hw, E1000_RA, (i << 1), 0);
- e1e_flush();
- E1000_WRITE_REG_ARRAY(hw, E1000_RA, ((i << 1) + 1), 0);
- e1e_flush();
- }
+ for (i = 1; i < rar_count; i++)
+ e1000e_rar_set(hw, mac_addr, i);
}
/**
@@ -164,10 +161,19 @@ void e1000e_rar_set(struct e1000_hw *hw, u8 *addr, u32 index)
rar_high = ((u32) addr[4] | ((u32) addr[5] << 8));
- rar_high |= E1000_RAH_AV;
+ /* If MAC address zero, no need to set the AV bit */
+ if (rar_low || rar_high)
+ rar_high |= E1000_RAH_AV;
- E1000_WRITE_REG_ARRAY(hw, E1000_RA, (index << 1), rar_low);
- E1000_WRITE_REG_ARRAY(hw, E1000_RA, ((index << 1) + 1), rar_high);
+ /*
+ * Some bridges will combine consecutive 32-bit writes into
+ * a single burst write, which will malfunction on some parts.
+ * The flushes avoid this.
+ */
+ ew32(RAL(index), rar_low);
+ e1e_flush();
+ ew32(RAH(index), rar_high);
+ e1e_flush();
}
/**
@@ -1609,6 +1615,11 @@ void e1000e_reset_adaptive(struct e1000_hw *hw)
{
struct e1000_mac_info *mac = &hw->mac;
+ if (!mac->adaptive_ifs) {
+ e_dbg("Not in Adaptive IFS mode!\n");
+ goto out;
+ }
+
mac->current_ifs_val = 0;
mac->ifs_min_val = IFS_MIN;
mac->ifs_max_val = IFS_MAX;
@@ -1617,6 +1628,8 @@ void e1000e_reset_adaptive(struct e1000_hw *hw)
mac->in_ifs_mode = false;
ew32(AIT, 0);
+out:
+ return;
}
/**
@@ -1630,6 +1643,11 @@ void e1000e_update_adaptive(struct e1000_hw *hw)
{
struct e1000_mac_info *mac = &hw->mac;
+ if (!mac->adaptive_ifs) {
+ e_dbg("Not in Adaptive IFS mode!\n");
+ goto out;
+ }
+
if ((mac->collision_delta * mac->ifs_ratio) > mac->tx_packet_delta) {
if (mac->tx_packet_delta > MIN_NUM_XMITS) {
mac->in_ifs_mode = true;
@@ -1650,6 +1668,8 @@ void e1000e_update_adaptive(struct e1000_hw *hw)
ew32(AIT, 0);
}
}
+out:
+ return;
}
/**
@@ -2287,10 +2307,12 @@ bool e1000e_enable_tx_pkt_filtering(struct e1000_hw *hw)
s32 ret_val, hdr_csum, csum;
u8 i, len;
+ hw->mac.tx_pkt_filtering = true;
+
/* No manageability, no filtering */
if (!e1000e_check_mng_mode(hw)) {
hw->mac.tx_pkt_filtering = false;
- return 0;
+ goto out;
}
/*
@@ -2298,9 +2320,9 @@ bool e1000e_enable_tx_pkt_filtering(struct e1000_hw *hw)
* reason, disable filtering.
*/
ret_val = e1000_mng_enable_host_if(hw);
- if (ret_val != 0) {
+ if (ret_val) {
hw->mac.tx_pkt_filtering = false;
- return ret_val;
+ goto out;
}
/* Read in the header. Length and offset are in dwords. */
@@ -2319,17 +2341,17 @@ bool e1000e_enable_tx_pkt_filtering(struct e1000_hw *hw)
*/
if ((hdr_csum != csum) || (hdr->signature != E1000_IAMT_SIGNATURE)) {
hw->mac.tx_pkt_filtering = true;
- return 1;
+ goto out;
}
/* Cookie area is valid, make the final check for filtering. */
if (!(hdr->status & E1000_MNG_DHCP_COOKIE_STATUS_PARSING)) {
hw->mac.tx_pkt_filtering = false;
- return 0;
+ goto out;
}
- hw->mac.tx_pkt_filtering = true;
- return 1;
+out:
+ return hw->mac.tx_pkt_filtering;
}
/**