netdev - [PATCH v4 06/10] e1000e: Support for byte queue limits

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <alpine.DEB.2.00.1111281819350.24413@pokey.mtv.corp.google.com>
Date:	Mon, 28 Nov 2011 18:33:16 -0800 (PST)
From:	Tom Herbert <therbert@...gle.com>
To:	davem@...emloft.net, netdev@...r.kernel.org
Subject: [PATCH v4 06/10] e1000e: Support for byte queue limits

Changes to e1000e to use byte queue limits.

Signed-off-by: Tom Herbert <therbert@...gle.com>
---
 drivers/net/ethernet/intel/e1000e/netdev.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index a5bd7a3..c6e9763 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -1079,6 +1079,7 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter)
 	unsigned int i, eop;
 	unsigned int count = 0;
 	unsigned int total_tx_bytes = 0, total_tx_packets = 0;
+	unsigned int bytes_compl = 0, pkts_compl = 0;
 
 	i = tx_ring->next_to_clean;
 	eop = tx_ring->buffer_info[i].next_to_watch;
@@ -1096,6 +1097,10 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter)
 			if (cleaned) {
 				total_tx_packets += buffer_info->segs;
 				total_tx_bytes += buffer_info->bytecount;
+				if (buffer_info->skb) {
+					bytes_compl += buffer_info->skb->len;
+					pkts_compl++;
+				}
 			}
 
 			e1000_put_txbuf(adapter, buffer_info);
@@ -1114,6 +1119,8 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter)
 
 	tx_ring->next_to_clean = i;
 
+	netdev_completed_queue(netdev, pkts_compl, bytes_compl);
+
 #define TX_WAKE_THRESHOLD 32
 	if (count && netif_carrier_ok(netdev) &&
 	    e1000_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD) {
@@ -2240,6 +2247,7 @@ static void e1000_clean_tx_ring(struct e1000_adapter *adapter)
 		e1000_put_txbuf(adapter, buffer_info);
 	}
 
+	netdev_reset_queue(adapter->netdev);
 	size = sizeof(struct e1000_buffer) * tx_ring->count;
 	memset(tx_ring->buffer_info, 0, size);
 
@@ -5027,6 +5035,7 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
 	/* if count is 0 then mapping error has occurred */
 	count = e1000_tx_map(adapter, skb, first, max_per_txd, nr_frags, mss);
 	if (count) {
+		netdev_sent_queue(netdev, skb->len);
 		e1000_tx_queue(adapter, tx_flags, count);
 		/* Make sure there is space in the ring for the next send. */
 		e1000_maybe_stop_tx(netdev, MAX_SKB_FRAGS + 2);
-- 
1.7.3.1

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html