ixgbe: Fix comments that are out of date or formatted incorrectly

This patch corrects several comments that are either incorrect or formatted
incorrectly for multiline comments.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 1cf676bf12ec044e514f3d2e4ac9ce4d605b5d59..23a466530a04cb86955ca1190a704729104194a8 100644 (file)
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -2359,7 +2359,7 @@ static irqreturn_t ixgbe_intr(int irq, void *data)
        u32 eicr;
 
        /*
-        * Workaround for silicon errata on 82598.  Mask the interrupts
+        * Workaround for silicon errata #26 on 82598.  Mask the interrupt
         * before the read of EICR.
         */
        IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK);
@@ -4381,7 +4381,11 @@ static inline bool ixgbe_set_fdir_queues(struct ixgbe_adapter *adapter)
        f_fdir->indices = min((int)num_online_cpus(), f_fdir->indices);
        f_fdir->mask = 0;
 
-       /* Flow Director must have RSS enabled */
+       /*
+        * Use RSS in addition to Flow Director to ensure the best
+        * distribution of flows across cores, even when an FDIR flow
+        * isn't matched.
+        */
        if ((adapter->flags & IXGBE_FLAG_RSS_ENABLED) &&
            (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)) {
                adapter->num_tx_queues = f_fdir->indices;
@@ -4558,7 +4562,8 @@ static void ixgbe_acquire_msix_vectors(struct ixgbe_adapter *adapter,
         */
        vector_threshold = MIN_MSIX_COUNT;
 
-       /* The more we get, the more we will assign to Tx/Rx Cleanup
+       /*
+        * The more we get, the more we will assign to Tx/Rx Cleanup
         * for the separate queues...where Rx Cleanup >= Tx Cleanup.
         * Right now, we simply care about how many we'll get; we'll
         * set them up later while requesting irq's.
@@ -6996,7 +7001,7 @@ netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
 
        /*
         * need: 1 descriptor per page * PAGE_SIZE/IXGBE_MAX_DATA_PER_TXD,
-        *       + 1 desc for skb_head_len/IXGBE_MAX_DATA_PER_TXD,
+        *       + 1 desc for skb_headlen/IXGBE_MAX_DATA_PER_TXD,
         *       + 2 desc gap to keep tail from touching head,
         *       + 1 desc for context descriptor,
         * otherwise try next time