@@ -159,41 +159,6 @@ void e1000e_rar_set(struct e1000_hw *hw, u8 *addr, u32 index)
}
/**
- * e1000_mta_set - Set multicast filter table address
- * @hw: pointer to the HW structure
- * @hash_value: determines the MTA register and bit to set
- *
- * The multicast table address is a register array of 32-bit registers.
- * The hash_value is used to determine what register the bit is in, the
- * current value is read, the new bit is OR'd in and the new value is
- * written back into the register.
- **/
-static void e1000_mta_set(struct e1000_hw *hw, u32 hash_value)
-{
- u32 hash_bit, hash_reg, mta;
-
- /*
- * The MTA is a register array of 32-bit registers. It is
- * treated like an array of (32*mta_reg_count) bits. We want to
- * set bit BitArray[hash_value]. So we figure out what register
- * the bit is in, read it, OR in the new bit, then write
- * back the new value. The (hw->mac.mta_reg_count - 1) serves as a
- * mask to bits 31:5 of the hash value which gives us the
- * register we're modifying. The hash bit within that register
- * is determined by the lower 5 bits of the hash value.
- */
- hash_reg = (hash_value >> 5) & (hw->mac.mta_reg_count - 1);
- hash_bit = hash_value & 0x1F;
-
- mta = E1000_READ_REG_ARRAY(hw, E1000_MTA, hash_reg);
-
- mta |= (1 << hash_bit);
-
- E1000_WRITE_REG_ARRAY(hw, E1000_MTA, hash_reg, mta);
- e1e_flush();
-}
-
-/**
* e1000_hash_mc_addr - Generate a multicast hash value
* @hw: pointer to the HW structure
* @mc_addr: pointer to a multicast address
@@ -281,8 +246,13 @@ void e1000e_update_mc_addr_list_generic(struct e1000_hw *hw,
u8 *mc_addr_list, u32 mc_addr_count,
u32 rar_used_count, u32 rar_count)
{
- u32 hash_value;
u32 i;
+ u32 *mcarray = kzalloc(hw->mac.mta_reg_count * sizeof(u32), GFP_ATOMIC);
+
+ if (!mcarray) {
+ printk(KERN_ERR "multicast array memory allocation failed\n");
+ return;
+ }
/*
* Load the first set of multicast addresses into the exact
@@ -302,20 +272,24 @@ void e1000e_update_mc_addr_list_generic(struct e1000_hw *hw,
}
}
- /* Clear the old settings from the MTA */
- hw_dbg(hw, "Clearing MTA\n");
- for (i = 0; i < hw->mac.mta_reg_count; i++) {
- E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
- e1e_flush();
- }
-
/* Load any remaining multicast addresses into the hash table. */
for (; mc_addr_count > 0; mc_addr_count--) {
+ u32 hash_value, hash_reg, hash_bit, mta;
hash_value = e1000_hash_mc_addr(hw, mc_addr_list);
hw_dbg(hw, "Hash value = 0x%03X\n", hash_value);
- e1000_mta_set(hw, hash_value);
+ hash_reg = (hash_value >> 5) & (hw->mac.mta_reg_count - 1);
+ hash_bit = hash_value & 0x1F;
+ mta = (1 << hash_bit);
+ mcarray[hash_reg] |= mta;
mc_addr_list += ETH_ALEN;
}
+
+ /* write the hash table completely */
+ for (i = 0; i < hw->mac.mta_reg_count; i++)
+ E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, mcarray[i]);
+
+ e1e_flush();
+ kfree(mcarray);
}
/**