Commit 35e9010b authored by Michael Chan's avatar Michael Chan Committed by David S. Miller
Browse files

bnx2: Put tx ring variables in a separate struct. 



In preparation for multi-ring support, tx ring variables are now put
in a separate bnx2_tx_ring_info struct.  Multi tx ring will not be
enabled until it is fully supported by the stack.  Only 1 tx ring
will be used at the moment.

The functions to allocate/free tx memory and to initialize tx rings
are now modified to handle multiple rings.

Signed-off-by: default avatarMichael Chan <mchan@broadcom.com>
Signed-off-by: default avatarBenjamin Li <benli@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4497b076

drivers/net/bnx2.c

+181 −113
Original line number Diff line number Diff line
@@ -226,7 +226,7 @@ static struct flash_spec flash_5709 = { 


MODULE_DEVICE_TABLE(pci, bnx2_pci_tbl);



static inline u32 bnx2_tx_avail(struct bnx2 *bp, struct bnx2_napi *bnapi)

static inline u32 bnx2_tx_avail(struct bnx2 *bp, struct bnx2_tx_ring_info *txr)

{

	u32 diff;
@@ -235,7 +235,7 @@ static inline u32 bnx2_tx_avail(struct bnx2 *bp, struct bnx2_napi *bnapi) 
	/* The ring uses 256 indices for 255 entries, one of them

	 * needs to be skipped.

	 */

	diff = bp->tx_prod - bnapi->tx_cons;

	diff = txr->tx_prod - txr->tx_cons;

	if (unlikely(diff >= TX_DESC_CNT)) {

		diff &= 0xffff;

		if (diff == TX_DESC_CNT)
@@ -495,11 +495,55 @@ bnx2_netif_start(struct bnx2 *bp) 
	}

}



static void

bnx2_free_tx_mem(struct bnx2 *bp)

{

	int i;



	for (i = 0; i < bp->num_tx_rings; i++) {

		struct bnx2_napi *bnapi = &bp->bnx2_napi[i];

		struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;



		if (txr->tx_desc_ring) {

			pci_free_consistent(bp->pdev, TXBD_RING_SIZE,

					    txr->tx_desc_ring,

					    txr->tx_desc_mapping);

			txr->tx_desc_ring = NULL;

		}

		kfree(txr->tx_buf_ring);

		txr->tx_buf_ring = NULL;

	}

}



static int

bnx2_alloc_tx_mem(struct bnx2 *bp)

{

	int i;



	for (i = 0; i < bp->num_tx_rings; i++) {

		struct bnx2_napi *bnapi = &bp->bnx2_napi[i];

		struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;



		txr->tx_buf_ring = kzalloc(SW_TXBD_RING_SIZE, GFP_KERNEL);

		if (txr->tx_buf_ring == NULL)

			return -ENOMEM;



		txr->tx_desc_ring =

			pci_alloc_consistent(bp->pdev, TXBD_RING_SIZE,

					     &txr->tx_desc_mapping);

		if (txr->tx_desc_ring == NULL)

			return -ENOMEM;

	}

	return 0;

}



static void

bnx2_free_mem(struct bnx2 *bp)

{

	int i;



	bnx2_free_tx_mem(bp);



	for (i = 0; i < bp->ctx_pages; i++) {

		if (bp->ctx_blk[i]) {

			pci_free_consistent(bp->pdev, BCM_PAGE_SIZE,
@@ -514,13 +558,6 @@ bnx2_free_mem(struct bnx2 *bp) 
		bp->status_blk = NULL;

		bp->stats_blk = NULL;

	}

	if (bp->tx_desc_ring) {

		pci_free_consistent(bp->pdev, TXBD_RING_SIZE,

				    bp->tx_desc_ring, bp->tx_desc_mapping);

		bp->tx_desc_ring = NULL;

	}

	kfree(bp->tx_buf_ring);

	bp->tx_buf_ring = NULL;

	for (i = 0; i < bp->rx_max_ring; i++) {

		if (bp->rx_desc_ring[i])

			pci_free_consistent(bp->pdev, RXBD_RING_SIZE,
@@ -545,16 +582,7 @@ bnx2_free_mem(struct bnx2 *bp) 
static int

bnx2_alloc_mem(struct bnx2 *bp)

{

	int i, status_blk_size;



	bp->tx_buf_ring = kzalloc(SW_TXBD_RING_SIZE, GFP_KERNEL);

	if (bp->tx_buf_ring == NULL)

		return -ENOMEM;



	bp->tx_desc_ring = pci_alloc_consistent(bp->pdev, TXBD_RING_SIZE,

						&bp->tx_desc_mapping);

	if (bp->tx_desc_ring == NULL)

		goto alloc_mem_err;

	int i, status_blk_size, err;



	bp->rx_buf_ring = vmalloc(SW_RXBD_RING_SIZE * bp->rx_max_ring);

	if (bp->rx_buf_ring == NULL)
@@ -634,6 +662,11 @@ bnx2_alloc_mem(struct bnx2 *bp) 
				goto alloc_mem_err;

		}

	}



	err = bnx2_alloc_tx_mem(bp);

	if (err)

		goto alloc_mem_err;



	return 0;



alloc_mem_err:
@@ -2483,11 +2516,12 @@ bnx2_get_hw_tx_cons(struct bnx2_napi *bnapi) 
static int

bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)

{

	struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;

	u16 hw_cons, sw_cons, sw_ring_cons;

	int tx_pkt = 0;



	hw_cons = bnx2_get_hw_tx_cons(bnapi);

	sw_cons = bnapi->tx_cons;

	sw_cons = txr->tx_cons;



	while (sw_cons != hw_cons) {

		struct sw_bd *tx_buf;
@@ -2496,7 +2530,7 @@ bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget) 


		sw_ring_cons = TX_RING_IDX(sw_cons);



		tx_buf = &bp->tx_buf_ring[sw_ring_cons];

		tx_buf = &txr->tx_buf_ring[sw_ring_cons];

		skb = tx_buf->skb;



		/* partial BD completions possible with TSO packets */
@@ -2526,7 +2560,7 @@ bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget) 


			pci_unmap_page(bp->pdev,

				pci_unmap_addr(

					&bp->tx_buf_ring[TX_RING_IDX(sw_cons)],

					&txr->tx_buf_ring[TX_RING_IDX(sw_cons)],

				       	mapping),

				skb_shinfo(skb)->frags[i].size,

				PCI_DMA_TODEVICE);
@@ -2542,8 +2576,8 @@ bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget) 
		hw_cons = bnx2_get_hw_tx_cons(bnapi);

	}



	bnapi->hw_tx_cons = hw_cons;

	bnapi->tx_cons = sw_cons;

	txr->hw_tx_cons = hw_cons;

	txr->tx_cons = sw_cons;

	/* Need to make the tx_cons update visible to bnx2_start_xmit()

	 * before checking for netif_queue_stopped().  Without the

	 * memory barrier, there is a small possibility that bnx2_start_xmit()
@@ -2552,10 +2586,10 @@ bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget) 
	smp_mb();



	if (unlikely(netif_queue_stopped(bp->dev)) &&

		     (bnx2_tx_avail(bp, bnapi) > bp->tx_wake_thresh)) {

		     (bnx2_tx_avail(bp, txr) > bp->tx_wake_thresh)) {

		netif_tx_lock(bp->dev);

		if ((netif_queue_stopped(bp->dev)) &&

		    (bnx2_tx_avail(bp, bnapi) > bp->tx_wake_thresh))

		    (bnx2_tx_avail(bp, txr) > bp->tx_wake_thresh))

			netif_wake_queue(bp->dev);

		netif_tx_unlock(bp->dev);

	}
@@ -2997,10 +3031,11 @@ bnx2_tx_msix(int irq, void *dev_instance) 
static inline int

bnx2_has_work(struct bnx2_napi *bnapi)

{

	struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;

	struct status_block *sblk = bnapi->status_blk;



	if ((bnx2_get_hw_rx_cons(bnapi) != bnapi->rx_cons) ||

	    (bnx2_get_hw_tx_cons(bnapi) != bnapi->hw_tx_cons))

	    (bnx2_get_hw_tx_cons(bnapi) != txr->hw_tx_cons))

		return 1;



	if ((sblk->status_attn_bits & STATUS_ATTN_EVENTS) !=
@@ -3014,6 +3049,7 @@ static int bnx2_tx_poll(struct napi_struct *napi, int budget) 
{

	struct bnx2_napi *bnapi = container_of(napi, struct bnx2_napi, napi);

	struct bnx2 *bp = bnapi->bp;

	struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;

	int work_done = 0;

	struct status_block_msix *sblk = bnapi->status_blk_msix;
@@ -3024,7 +3060,7 @@ static int bnx2_tx_poll(struct napi_struct *napi, int budget) 


		bnapi->last_status_idx = sblk->status_idx;

		rmb();

	} while (bnx2_get_hw_tx_cons(bnapi) != bnapi->hw_tx_cons);

	} while (bnx2_get_hw_tx_cons(bnapi) != txr->hw_tx_cons);



	netif_rx_complete(bp->dev, napi);

	REG_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |
@@ -3036,6 +3072,7 @@ static int bnx2_tx_poll(struct napi_struct *napi, int budget) 
static int bnx2_poll_work(struct bnx2 *bp, struct bnx2_napi *bnapi,

			  int work_done, int budget)

{

	struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;

	struct status_block *sblk = bnapi->status_blk;

	u32 status_attn_bits = sblk->status_attn_bits;

	u32 status_attn_bits_ack = sblk->status_attn_bits_ack;
@@ -3053,7 +3090,7 @@ static int bnx2_poll_work(struct bnx2 *bp, struct bnx2_napi *bnapi, 
		REG_RD(bp, BNX2_HC_COMMAND);

	}



	if (bnx2_get_hw_tx_cons(bnapi) != bnapi->hw_tx_cons)

	if (bnx2_get_hw_tx_cons(bnapi) != txr->hw_tx_cons)

		bnx2_tx_int(bp, bnapi, 0);



	if (bnx2_get_hw_rx_cons(bnapi) != bnapi->rx_cons)
@@ -4494,13 +4531,15 @@ static void 
bnx2_clear_ring_states(struct bnx2 *bp)

{

	struct bnx2_napi *bnapi;

	struct bnx2_tx_ring_info *txr;

	int i;



	for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) {

		bnapi = &bp->bnx2_napi[i];

		txr = &bnapi->tx_ring;



		bnapi->tx_cons = 0;

		bnapi->hw_tx_cons = 0;

		txr->tx_cons = 0;

		txr->hw_tx_cons = 0;

		bnapi->rx_prod_bseq = 0;

		bnapi->rx_prod = 0;

		bnapi->rx_cons = 0;
@@ -4510,7 +4549,7 @@ bnx2_clear_ring_states(struct bnx2 *bp) 
}



static void

bnx2_init_tx_context(struct bnx2 *bp, u32 cid)

bnx2_init_tx_context(struct bnx2 *bp, u32 cid, struct bnx2_tx_ring_info *txr)

{

	u32 val, offset0, offset1, offset2, offset3;

	u32 cid_addr = GET_CID_ADDR(cid);
@@ -4532,43 +4571,43 @@ bnx2_init_tx_context(struct bnx2 *bp, u32 cid) 
	val = BNX2_L2CTX_CMD_TYPE_TYPE_L2 | (8 << 16);

	bnx2_ctx_wr(bp, cid_addr, offset1, val);



	val = (u64) bp->tx_desc_mapping >> 32;

	val = (u64) txr->tx_desc_mapping >> 32;

	bnx2_ctx_wr(bp, cid_addr, offset2, val);



	val = (u64) bp->tx_desc_mapping & 0xffffffff;

	val = (u64) txr->tx_desc_mapping & 0xffffffff;

	bnx2_ctx_wr(bp, cid_addr, offset3, val);

}



static void

bnx2_init_tx_ring(struct bnx2 *bp)

bnx2_init_tx_ring(struct bnx2 *bp, int ring_num)

{

	struct tx_bd *txbd;

	u32 cid = TX_CID;

	struct bnx2_napi *bnapi;

	struct bnx2_tx_ring_info *txr;



	bp->tx_vec = 0;

	if (bp->flags & BNX2_FLAG_USING_MSIX) {

		cid = TX_TSS_CID;

		bp->tx_vec = BNX2_TX_VEC;

		REG_WR(bp, BNX2_TSCH_TSS_CFG, BNX2_TX_INT_NUM |

		       (TX_TSS_CID << 7));

	}

	bnapi = &bp->bnx2_napi[bp->tx_vec];

	bnapi = &bp->bnx2_napi[ring_num];

	txr = &bnapi->tx_ring;



	if (ring_num == 0)

		cid = TX_CID;

	else

		cid = TX_TSS_CID + ring_num - 1;



	bp->tx_wake_thresh = bp->tx_ring_size / 2;



	txbd = &bp->tx_desc_ring[MAX_TX_DESC_CNT];

	txbd = &txr->tx_desc_ring[MAX_TX_DESC_CNT];



	txbd->tx_bd_haddr_hi = (u64) bp->tx_desc_mapping >> 32;

	txbd->tx_bd_haddr_lo = (u64) bp->tx_desc_mapping & 0xffffffff;

	txbd->tx_bd_haddr_hi = (u64) txr->tx_desc_mapping >> 32;

	txbd->tx_bd_haddr_lo = (u64) txr->tx_desc_mapping & 0xffffffff;



	bp->tx_prod = 0;

	bp->tx_prod_bseq = 0;

	txr->tx_prod = 0;

	txr->tx_prod_bseq = 0;



	bp->tx_bidx_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_TX_HOST_BIDX;

	bp->tx_bseq_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_TX_HOST_BSEQ;

	txr->tx_bidx_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_TX_HOST_BIDX;

	txr->tx_bseq_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_TX_HOST_BSEQ;



	bnx2_init_tx_context(bp, cid);

	bnx2_init_tx_context(bp, cid, txr);

}



static void
@@ -4665,6 +4704,24 @@ bnx2_init_rx_ring(struct bnx2 *bp) 
	REG_WR(bp, MB_RX_CID_ADDR + BNX2_L2CTX_HOST_BSEQ, bnapi->rx_prod_bseq);

}



static void

bnx2_init_all_rings(struct bnx2 *bp)

{

	int i;



	bnx2_clear_ring_states(bp);



	REG_WR(bp, BNX2_TSCH_TSS_CFG, 0);

	for (i = 0; i < bp->num_tx_rings; i++)

		bnx2_init_tx_ring(bp, i);



	if (bp->num_tx_rings > 1)

		REG_WR(bp, BNX2_TSCH_TSS_CFG, ((bp->num_tx_rings - 1) << 24) |

		       (TX_TSS_CID << 7));



	bnx2_init_rx_ring(bp);

}



static u32 bnx2_find_max_ring(u32 ring_size, u32 max_size)

{

	u32 max, num_rings = 1;
@@ -4728,36 +4785,42 @@ bnx2_free_tx_skbs(struct bnx2 *bp) 
{

	int i;



	if (bp->tx_buf_ring == NULL)

		return;

	for (i = 0; i < bp->num_tx_rings; i++) {

		struct bnx2_napi *bnapi = &bp->bnx2_napi[i];

		struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;

		int j;



		if (txr->tx_buf_ring == NULL)

			continue;



	for (i = 0; i < TX_DESC_CNT; ) {

		struct sw_bd *tx_buf = &bp->tx_buf_ring[i];

		for (j = 0; j < TX_DESC_CNT; ) {

			struct sw_bd *tx_buf = &txr->tx_buf_ring[j];

			struct sk_buff *skb = tx_buf->skb;

		int j, last;

			int k, last;



			if (skb == NULL) {

			i++;

				j++;

				continue;

			}



		pci_unmap_single(bp->pdev, pci_unmap_addr(tx_buf, mapping),

			pci_unmap_single(bp->pdev,

					 pci_unmap_addr(tx_buf, mapping),

			skb_headlen(skb), PCI_DMA_TODEVICE);



			tx_buf->skb = NULL;



			last = skb_shinfo(skb)->nr_frags;

		for (j = 0; j < last; j++) {

			tx_buf = &bp->tx_buf_ring[i + j + 1];

			for (k = 0; k < last; k++) {

				tx_buf = &txr->tx_buf_ring[j + k + 1];

				pci_unmap_page(bp->pdev,

					pci_unmap_addr(tx_buf, mapping),

					skb_shinfo(skb)->frags[j].size,

					PCI_DMA_TODEVICE);

			}

			dev_kfree_skb(skb);

		i += j + 1;

			j += k + 1;

		}

	}



}



static void
@@ -4806,9 +4869,7 @@ bnx2_reset_nic(struct bnx2 *bp, u32 reset_code) 
	if ((rc = bnx2_init_chip(bp)) != 0)

		return rc;



	bnx2_clear_ring_states(bp);

	bnx2_init_tx_ring(bp);

	bnx2_init_rx_ring(bp);

	bnx2_init_all_rings(bp);

	return 0;

}
@@ -5081,11 +5142,11 @@ bnx2_run_loopback(struct bnx2 *bp, int loopback_mode) 
	struct l2_fhdr *rx_hdr;

	int ret = -ENODEV;

	struct bnx2_napi *bnapi = &bp->bnx2_napi[0], *tx_napi;

	struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;



	tx_napi = bnapi;

	if (bp->flags & BNX2_FLAG_USING_MSIX)

		tx_napi = &bp->bnx2_napi[BNX2_TX_VEC];



	txr = &tx_napi->tx_ring;

	if (loopback_mode == BNX2_MAC_LOOPBACK) {

		bp->loopback = MAC_LOOPBACK;

		bnx2_set_mac_loopback(bp);
@@ -5123,7 +5184,7 @@ bnx2_run_loopback(struct bnx2 *bp, int loopback_mode) 


	num_pkts = 0;



	txbd = &bp->tx_desc_ring[TX_RING_IDX(bp->tx_prod)];

	txbd = &txr->tx_desc_ring[TX_RING_IDX(txr->tx_prod)];



	txbd->tx_bd_haddr_hi = (u64) map >> 32;

	txbd->tx_bd_haddr_lo = (u64) map & 0xffffffff;
@@ -5131,11 +5192,11 @@ bnx2_run_loopback(struct bnx2 *bp, int loopback_mode) 
	txbd->tx_bd_vlan_tag_flags = TX_BD_FLAGS_START | TX_BD_FLAGS_END;



	num_pkts++;

	bp->tx_prod = NEXT_TX_BD(bp->tx_prod);

	bp->tx_prod_bseq += pkt_size;

	txr->tx_prod = NEXT_TX_BD(txr->tx_prod);

	txr->tx_prod_bseq += pkt_size;



	REG_WR16(bp, bp->tx_bidx_addr, bp->tx_prod);

	REG_WR(bp, bp->tx_bseq_addr, bp->tx_prod_bseq);

	REG_WR16(bp, txr->tx_bidx_addr, txr->tx_prod);

	REG_WR(bp, txr->tx_bseq_addr, txr->tx_prod_bseq);



	udelay(100);
@@ -5149,7 +5210,7 @@ bnx2_run_loopback(struct bnx2 *bp, int loopback_mode) 
	pci_unmap_single(bp->pdev, map, pkt_size, PCI_DMA_TODEVICE);

	dev_kfree_skb(skb);



	if (bnx2_get_hw_tx_cons(tx_napi) != bp->tx_prod)

	if (bnx2_get_hw_tx_cons(tx_napi) != txr->tx_prod)

		goto loopback_test_done;



	rx_idx = bnx2_get_hw_rx_cons(bnapi);
@@ -5527,20 +5588,18 @@ bnx2_enable_msix(struct bnx2 *bp) 
	for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) {

		msix_ent[i].entry = i;

		msix_ent[i].vector = 0;



		strcpy(bp->irq_tbl[i].name, bp->dev->name);

		if (i == 0)

			bp->irq_tbl[i].handler = bnx2_msi_1shot;

		else

			bp->irq_tbl[i].handler = bnx2_tx_msix;

	}



	rc = pci_enable_msix(bp->pdev, msix_ent, BNX2_MAX_MSIX_VEC);

	if (rc != 0)

		return;



	bp->irq_tbl[BNX2_BASE_VEC].handler = bnx2_msi_1shot;

	bp->irq_tbl[BNX2_TX_VEC].handler = bnx2_tx_msix;



	strcpy(bp->irq_tbl[BNX2_BASE_VEC].name, bp->dev->name);

	strcat(bp->irq_tbl[BNX2_BASE_VEC].name, "-base");

	strcpy(bp->irq_tbl[BNX2_TX_VEC].name, bp->dev->name);

	strcat(bp->irq_tbl[BNX2_TX_VEC].name, "-tx");



	bp->irq_nvecs = BNX2_MAX_MSIX_VEC;

	bp->flags |= BNX2_FLAG_USING_MSIX | BNX2_FLAG_ONE_SHOT_MSI;

	for (i = 0; i < BNX2_MAX_MSIX_VEC; i++)
@@ -5571,6 +5630,7 @@ bnx2_setup_int_mode(struct bnx2 *bp, int dis_msi) 
			bp->irq_tbl[0].vector = bp->pdev->irq;

		}

	}

	bp->num_tx_rings = 1;

}



/* Called with rtnl_lock */
@@ -5585,12 +5645,15 @@ bnx2_open(struct net_device *dev) 
	bnx2_set_power_state(bp, PCI_D0);

	bnx2_disable_int(bp);



	bnx2_setup_int_mode(bp, disable_msi);

	bnx2_napi_enable(bp);

	rc = bnx2_alloc_mem(bp);

	if (rc)

	if (rc) {

		bnx2_napi_disable(bp);

		bnx2_free_mem(bp);

		return rc;

	}



	bnx2_setup_int_mode(bp, disable_msi);

	bnx2_napi_enable(bp);

	rc = bnx2_request_irq(bp);



	if (rc) {
@@ -5711,9 +5774,10 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev) 
	u32 len, vlan_tag_flags, last_frag, mss;

	u16 prod, ring_prod;

	int i;

	struct bnx2_napi *bnapi = &bp->bnx2_napi[bp->tx_vec];

	struct bnx2_napi *bnapi = &bp->bnx2_napi[0];

	struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;



	if (unlikely(bnx2_tx_avail(bp, bnapi) <

	if (unlikely(bnx2_tx_avail(bp, txr) <

	    (skb_shinfo(skb)->nr_frags + 1))) {

		netif_stop_queue(dev);

		printk(KERN_ERR PFX "%s: BUG! Tx ring full when queue awake!\n",
@@ -5722,7 +5786,7 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev) 
		return NETDEV_TX_BUSY;

	}

	len = skb_headlen(skb);

	prod = bp->tx_prod;

	prod = txr->tx_prod;

	ring_prod = TX_RING_IDX(prod);



	vlan_tag_flags = 0;
@@ -5784,11 +5848,11 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev) 


	mapping = pci_map_single(bp->pdev, skb->data, len, PCI_DMA_TODEVICE);



	tx_buf = &bp->tx_buf_ring[ring_prod];

	tx_buf = &txr->tx_buf_ring[ring_prod];

	tx_buf->skb = skb;

	pci_unmap_addr_set(tx_buf, mapping, mapping);



	txbd = &bp->tx_desc_ring[ring_prod];

	txbd = &txr->tx_desc_ring[ring_prod];



	txbd->tx_bd_haddr_hi = (u64) mapping >> 32;

	txbd->tx_bd_haddr_lo = (u64) mapping & 0xffffffff;
@@ -5802,12 +5866,12 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev) 


		prod = NEXT_TX_BD(prod);

		ring_prod = TX_RING_IDX(prod);

		txbd = &bp->tx_desc_ring[ring_prod];

		txbd = &txr->tx_desc_ring[ring_prod];



		len = frag->size;

		mapping = pci_map_page(bp->pdev, frag->page, frag->page_offset,

			len, PCI_DMA_TODEVICE);

		pci_unmap_addr_set(&bp->tx_buf_ring[ring_prod],

		pci_unmap_addr_set(&txr->tx_buf_ring[ring_prod],

				mapping, mapping);



		txbd->tx_bd_haddr_hi = (u64) mapping >> 32;
@@ -5819,19 +5883,19 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev) 
	txbd->tx_bd_vlan_tag_flags |= TX_BD_FLAGS_END;



	prod = NEXT_TX_BD(prod);

	bp->tx_prod_bseq += skb->len;

	txr->tx_prod_bseq += skb->len;



	REG_WR16(bp, bp->tx_bidx_addr, prod);

	REG_WR(bp, bp->tx_bseq_addr, bp->tx_prod_bseq);

	REG_WR16(bp, txr->tx_bidx_addr, prod);

	REG_WR(bp, txr->tx_bseq_addr, txr->tx_prod_bseq);



	mmiowb();



	bp->tx_prod = prod;

	txr->tx_prod = prod;

	dev->trans_start = jiffies;



	if (unlikely(bnx2_tx_avail(bp, bnapi) <= MAX_SKB_FRAGS)) {

	if (unlikely(bnx2_tx_avail(bp, txr) <= MAX_SKB_FRAGS)) {

		netif_stop_queue(dev);

		if (bnx2_tx_avail(bp, bnapi) > bp->tx_wake_thresh)

		if (bnx2_tx_avail(bp, txr) > bp->tx_wake_thresh)

			netif_wake_queue(dev);

	}
@@ -7390,15 +7454,19 @@ static void __devinit 
bnx2_init_napi(struct bnx2 *bp)

{

	int i;

	struct bnx2_napi *bnapi;



	for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) {

		bnapi = &bp->bnx2_napi[i];

		struct bnx2_napi *bnapi = &bp->bnx2_napi[i];

		int (*poll)(struct napi_struct *, int);



		if (i == 0)

			poll = bnx2_poll;

		else

			poll = bnx2_tx_poll;



		netif_napi_add(bp->dev, &bp->bnx2_napi[i].napi, poll, 64);

		bnapi->bp = bp;

	}

	netif_napi_add(bp->dev, &bp->bnx2_napi[0].napi, bnx2_poll, 64);

	netif_napi_add(bp->dev, &bp->bnx2_napi[BNX2_TX_VEC].napi, bnx2_tx_poll,

		       64);

}



static int __devinit

drivers/net/bnx2.h

+18 −16
Original line number Diff line number Diff line
@@ -6569,6 +6569,21 @@ struct bnx2_irq { 
	char		name[16];

};



struct bnx2_tx_ring_info {

	u32			tx_prod_bseq;

	u16			tx_prod;

	u32			tx_bidx_addr;

	u32			tx_bseq_addr;



	struct tx_bd		*tx_desc_ring;

	struct sw_bd		*tx_buf_ring;



	u16			tx_cons;

	u16			hw_tx_cons;



	dma_addr_t		tx_desc_mapping;

};



struct bnx2_napi {

	struct napi_struct	napi		____cacheline_aligned;

	struct bnx2		*bp;
@@ -6577,9 +6592,6 @@ struct bnx2_napi { 
	u32 			last_status_idx;

	u32			int_num;



	u16			tx_cons;

	u16			hw_tx_cons;



	u32			rx_prod_bseq;

	u16			rx_prod;

	u16			rx_cons;
@@ -6587,6 +6599,7 @@ struct bnx2_napi { 
	u16			rx_pg_prod;

	u16			rx_pg_cons;



	struct bnx2_tx_ring_info	tx_ring;

};



struct bnx2 {
@@ -6614,14 +6627,6 @@ struct bnx2 { 
					 BNX2_FLAG_USING_MSIX)

#define BNX2_FLAG_JUMBO_BROKEN		0x00000800



	/* Put tx producer and consumer fields in separate cache lines. */



	u32		tx_prod_bseq __attribute__((aligned(L1_CACHE_BYTES)));

	u16		tx_prod;

	u8		tx_vec;

	u32		tx_bidx_addr;

	u32		tx_bseq_addr;



	struct bnx2_napi	bnx2_napi[BNX2_MAX_MSIX_VEC];



#ifdef BCM_VLAN
@@ -6643,8 +6648,6 @@ struct bnx2 { 
	struct rx_bd		*rx_pg_desc_ring[MAX_RX_PG_RINGS];



	/* TX constants */

	struct tx_bd	*tx_desc_ring;

	struct sw_bd	*tx_buf_ring;

	int		tx_ring_size;

	u32		tx_wake_thresh;
@@ -6722,9 +6725,6 @@ struct bnx2 { 
	u16			fw_wr_seq;

	u16			fw_drv_pulse_wr_seq;



	dma_addr_t		tx_desc_mapping;





	int			rx_max_ring;

	int			rx_ring_size;

	dma_addr_t		rx_desc_mapping[MAX_RX_RINGS];
@@ -6812,6 +6812,8 @@ struct bnx2 { 


	struct bnx2_irq		irq_tbl[BNX2_MAX_MSIX_VEC];

	int			irq_nvecs;



	u8			num_tx_rings;

};



#define REG_RD(bp, offset)					\

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