Merge branch 'net' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

1 files changed, 34 insertions, 27 deletions

diff --git a/drivers/net/ethernet/tile/tilegx.c b/drivers/net/ethernet/tile/tilegx.c
index 7f500288f6b3..4e2a1628484d 100644
--- a/drivers/net/ethernet/tile/tilegx.c
+++ b/drivers/net/ethernet/tile/tilegx.c
@@ -123,6 +123,7 @@ struct tile_net_comps {
 
 /* The transmit wake timer for a given cpu and echannel. */
 struct tile_net_tx_wake {
+	int tx_queue_idx;
 	struct hrtimer timer;
 	struct net_device *dev;
 };
@@ -573,12 +574,14 @@ static void add_comp(gxio_mpipe_equeue_t *equeue,
 	comps->comp_next++;
 }
 
-static void tile_net_schedule_tx_wake_timer(struct net_device *dev)
+static void tile_net_schedule_tx_wake_timer(struct net_device *dev,
+                                            int tx_queue_idx)
 {
-	struct tile_net_info *info = &__get_cpu_var(per_cpu_info);
+	struct tile_net_info *info = &per_cpu(per_cpu_info, tx_queue_idx);
 	struct tile_net_priv *priv = netdev_priv(dev);
+	struct tile_net_tx_wake *tx_wake = &info->tx_wake[priv->echannel];
 
-	hrtimer_start(&info->tx_wake[priv->echannel].timer,
+	hrtimer_start(&tx_wake->timer,
 		      ktime_set(0, TX_TIMER_DELAY_USEC * 1000UL),
 		      HRTIMER_MODE_REL_PINNED);
 }
@@ -587,7 +590,7 @@ static enum hrtimer_restart tile_net_handle_tx_wake_timer(struct hrtimer *t)
 {
 	struct tile_net_tx_wake *tx_wake =
 		container_of(t, struct tile_net_tx_wake, timer);
-	netif_wake_subqueue(tx_wake->dev, smp_processor_id());
+	netif_wake_subqueue(tx_wake->dev, tx_wake->tx_queue_idx);
 	return HRTIMER_NORESTART;
 }
 
@@ -1218,6 +1221,7 @@ static int tile_net_open(struct net_device *dev)
 
 		hrtimer_init(&tx_wake->timer, CLOCK_MONOTONIC,
 			     HRTIMER_MODE_REL);
+		tx_wake->tx_queue_idx = cpu;
 		tx_wake->timer.function = tile_net_handle_tx_wake_timer;
 		tx_wake->dev = dev;
 	}
@@ -1291,6 +1295,7 @@ static inline void *tile_net_frag_buf(skb_frag_t *f)
  * stop the queue and schedule the tx_wake timer.
  */
 static s64 tile_net_equeue_try_reserve(struct net_device *dev,
+				       int tx_queue_idx,
 				       struct tile_net_comps *comps,
 				       gxio_mpipe_equeue_t *equeue,
 				       int num_edescs)
@@ -1313,8 +1318,8 @@ static s64 tile_net_equeue_try_reserve(struct net_device *dev,
 	}
 
 	/* Still nothing; give up and stop the queue for a short while. */
-	netif_stop_subqueue(dev, smp_processor_id());
-	tile_net_schedule_tx_wake_timer(dev);
+	netif_stop_subqueue(dev, tx_queue_idx);
+	tile_net_schedule_tx_wake_timer(dev, tx_queue_idx);
 	return -1;
 }
 
@@ -1328,11 +1333,12 @@ static s64 tile_net_equeue_try_reserve(struct net_device *dev,
 static int tso_count_edescs(struct sk_buff *skb)
 {
 	struct skb_shared_info *sh = skb_shinfo(skb);
-	unsigned int data_len = skb->data_len;
+	unsigned int sh_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+	unsigned int data_len = skb->data_len + skb->hdr_len - sh_len;
 	unsigned int p_len = sh->gso_size;
 	long f_id = -1;    /* id of the current fragment */
-	long f_size = -1;  /* size of the current fragment */
-	long f_used = -1;  /* bytes used from the current fragment */
+	long f_size = skb->hdr_len;  /* size of the current fragment */
+	long f_used = sh_len;  /* bytes used from the current fragment */
 	long n;            /* size of the current piece of payload */
 	int num_edescs = 0;
 	int segment;
@@ -1377,13 +1383,14 @@ static void tso_headers_prepare(struct sk_buff *skb, unsigned char *headers,
 	struct skb_shared_info *sh = skb_shinfo(skb);
 	struct iphdr *ih;
 	struct tcphdr *th;
-	unsigned int data_len = skb->data_len;
+	unsigned int sh_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+	unsigned int data_len = skb->data_len + skb->hdr_len - sh_len;
 	unsigned char *data = skb->data;
-	unsigned int ih_off, th_off, sh_len, p_len;
+	unsigned int ih_off, th_off, p_len;
 	unsigned int isum_seed, tsum_seed, id, seq;
 	long f_id = -1;    /* id of the current fragment */
-	long f_size = -1;  /* size of the current fragment */
-	long f_used = -1;  /* bytes used from the current fragment */
+	long f_size = skb->hdr_len;  /* size of the current fragment */
+	long f_used = sh_len;  /* bytes used from the current fragment */
 	long n;            /* size of the current piece of payload */
 	int segment;
 
@@ -1392,14 +1399,13 @@ static void tso_headers_prepare(struct sk_buff *skb, unsigned char *headers,
 	th = tcp_hdr(skb);
 	ih_off = skb_network_offset(skb);
 	th_off = skb_transport_offset(skb);
-	sh_len = th_off + tcp_hdrlen(skb);
 	p_len = sh->gso_size;
 
 	/* Set up seed values for IP and TCP csum and initialize id and seq. */
 	isum_seed = ((0xFFFF - ih->check) +
 		     (0xFFFF - ih->tot_len) +
 		     (0xFFFF - ih->id));
-	tsum_seed = th->check + (0xFFFF ^ htons(skb->len));
+	tsum_seed = th->check + (0xFFFF ^ htons(sh_len + data_len));
 	id = ntohs(ih->id);
 	seq = ntohl(th->seq);
 
@@ -1471,21 +1477,22 @@ static void tso_egress(struct net_device *dev, gxio_mpipe_equeue_t *equeue,
 {
 	struct tile_net_priv *priv = netdev_priv(dev);
 	struct skb_shared_info *sh = skb_shinfo(skb);
-	unsigned int data_len = skb->data_len;
+	unsigned int sh_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+	unsigned int data_len = skb->data_len + skb->hdr_len - sh_len;
 	unsigned int p_len = sh->gso_size;
 	gxio_mpipe_edesc_t edesc_head = { { 0 } };
 	gxio_mpipe_edesc_t edesc_body = { { 0 } };
 	long f_id = -1;    /* id of the current fragment */
-	long f_size = -1;  /* size of the current fragment */
-	long f_used = -1;  /* bytes used from the current fragment */
+	long f_size = skb->hdr_len;  /* size of the current fragment */
+	long f_used = sh_len;  /* bytes used from the current fragment */
+	void *f_data = skb->data;
 	long n;            /* size of the current piece of payload */
 	unsigned long tx_packets = 0, tx_bytes = 0;
-	unsigned int csum_start, sh_len;
+	unsigned int csum_start;
 	int segment;
 
 	/* Prepare to egress the headers: set up header edesc. */
 	csum_start = skb_checksum_start_offset(skb);
-	sh_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
 	edesc_head.csum = 1;
 	edesc_head.csum_start = csum_start;
 	edesc_head.csum_dest = csum_start + skb->csum_offset;
@@ -1497,7 +1504,6 @@ static void tso_egress(struct net_device *dev, gxio_mpipe_equeue_t *equeue,
 
 	/* Egress all the edescs. */
 	for (segment = 0; segment < sh->gso_segs; segment++) {
-		void *va;
 		unsigned char *buf;
 		unsigned int p_used = 0;
 
@@ -1516,10 +1522,9 @@ static void tso_egress(struct net_device *dev, gxio_mpipe_equeue_t *equeue,
 				f_id++;
 				f_size = sh->frags[f_id].size;
 				f_used = 0;
+				f_data = tile_net_frag_buf(&sh->frags[f_id]);
 			}
 
-			va = tile_net_frag_buf(&sh->frags[f_id]) + f_used;
-
 			/* Use bytes from the current fragment. */
 			n = p_len - p_used;
 			if (n > f_size - f_used)
@@ -1528,7 +1533,7 @@ static void tso_egress(struct net_device *dev, gxio_mpipe_equeue_t *equeue,
 			p_used += n;
 
 			/* Egress a piece of the payload. */
-			edesc_body.va = va_to_tile_io_addr(va);
+			edesc_body.va = va_to_tile_io_addr(f_data) + f_used;
 			edesc_body.xfer_size = n;
 			edesc_body.bound = !(p_used < p_len);
 			gxio_mpipe_equeue_put_at(equeue, edesc_body, slot);
@@ -1580,7 +1585,8 @@ static int tile_net_tx_tso(struct sk_buff *skb, struct net_device *dev)
 	local_irq_save(irqflags);
 
 	/* Try to acquire a completion entry and an egress slot. */
-	slot = tile_net_equeue_try_reserve(dev, comps, equeue, num_edescs);
+	slot = tile_net_equeue_try_reserve(dev, skb->queue_mapping, comps,
+					   equeue, num_edescs);
 	if (slot < 0) {
 		local_irq_restore(irqflags);
 		return NETDEV_TX_BUSY;
@@ -1674,7 +1680,8 @@ static int tile_net_tx(struct sk_buff *skb, struct net_device *dev)
 	local_irq_save(irqflags);
 
 	/* Try to acquire a completion entry and an egress slot. */
-	slot = tile_net_equeue_try_reserve(dev, comps, equeue, num_edescs);
+	slot = tile_net_equeue_try_reserve(dev, skb->queue_mapping, comps,
+					   equeue, num_edescs);
 	if (slot < 0) {
 		local_irq_restore(irqflags);
 		return NETDEV_TX_BUSY;
@@ -1844,7 +1851,7 @@ static void tile_net_dev_init(const char *name, const uint8_t *mac)
 		memcpy(dev->dev_addr, mac, 6);
 		dev->addr_len = 6;
 	} else {
-		eth_random_addr(dev->dev_addr);
+		eth_hw_addr_random(dev);
 	}
 
 	/* Register the network device. */