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cnic: Put rx/tx ring allocation in separate function.

PATCH Applied Michael Chan 2 participants 4 messages Aug 26, 2009 – Aug 29, 2009

Subsystems (2)
Networking Network drivers
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Michael Chan

author
#0 lore raw

PATCH 1/2 cnic: Put rx/tx ring allocation in separate function.

This will allow the 10G iSCSI code to reuse the function.

Signed-off-by Michael Chan <[email protected]>
---
 drivers/net/cnic.c |   33 ++++++++++++++++++++++-----------
 1 files changed, 22 insertions(+), 11 deletions(-)
drivers/net/cnic.c +22 -11
index 4869d77..039900c 100644
@@ -742,6 +742,26 @@ static int cnic_alloc_context(struct cnic_dev *dev)
 	return 0;
 }
 
+static int cnic_alloc_l2_rings(struct cnic_dev *dev, int pages)
+{
+	struct cnic_local *cp = dev->cnic_priv;
+
+	cp->l2_ring_size = pages * BCM_PAGE_SIZE;
+	cp->l2_ring = pci_alloc_consistent(dev->pcidev, cp->l2_ring_size,
+					   &cp->l2_ring_map);
+	if (!cp->l2_ring)
+		return -ENOMEM;
+
+	cp->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size;
+	cp->l2_buf_size = PAGE_ALIGN(cp->l2_buf_size);
+	cp->l2_buf = pci_alloc_consistent(dev->pcidev, cp->l2_buf_size,
+					   &cp->l2_buf_map);
+	if (!cp->l2_buf)
+		return -ENOMEM;
+
+	return 0;
+}
+
 static int cnic_alloc_bnx2_resc(struct cnic_dev *dev)
 {
 	struct cnic_local *cp = dev->cnic_priv;

@@ -762,17 +782,8 @@ static int cnic_alloc_bnx2_resc(struct cnic_dev *dev)
 	if (ret)
 		goto error;
 
-	cp->l2_ring_size = 2 * BCM_PAGE_SIZE;
-	cp->l2_ring = pci_alloc_consistent(dev->pcidev, cp->l2_ring_size,
-					   &cp->l2_ring_map);
-	if (!cp->l2_ring)
-		goto error;
-
-	cp->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size;
-	cp->l2_buf_size = PAGE_ALIGN(cp->l2_buf_size);
-	cp->l2_buf = pci_alloc_consistent(dev->pcidev, cp->l2_buf_size,
-					   &cp->l2_buf_map);
-	if (!cp->l2_buf)
+	ret = cnic_alloc_l2_rings(dev, 2);
+	if (ret)
 		goto error;
 
 	uinfo = kzalloc(sizeof(*uinfo), GFP_ATOMIC);
Signature · 1 line
1.6.4.GIT
author
#1 lore raw

PATCH 2/2 cnic: Put uio init in separate function.

This will allow the 10G iSCSI code to reuse the function.

Signed-off-by Michael Chan <[email protected]>
---
 drivers/net/cnic.c |   68 +++++++++++++++++++++++++++++++--------------------
 1 files changed, 41 insertions(+), 27 deletions(-)
drivers/net/cnic.c +41 -27
index 039900c..f8a0923 100644
@@ -762,33 +762,14 @@ static int cnic_alloc_l2_rings(struct cnic_dev *dev, int pages)
 	return 0;
 }
 
-static int cnic_alloc_bnx2_resc(struct cnic_dev *dev)
-{
+static int cnic_alloc_uio(struct cnic_dev *dev) {
 	struct cnic_local *cp = dev->cnic_priv;
 	struct uio_info *uinfo;
 	int ret;
 
-	ret = cnic_alloc_dma(dev, &cp->kwq_info, KWQ_PAGE_CNT, 1);
-	if (ret)
-		goto error;
-	cp->kwq = (struct kwqe **) cp->kwq_info.pg_arr;
-
-	ret = cnic_alloc_dma(dev, &cp->kcq_info, KCQ_PAGE_CNT, 1);
-	if (ret)
-		goto error;
-	cp->kcq = (struct kcqe **) cp->kcq_info.pg_arr;
-
-	ret = cnic_alloc_context(dev);
-	if (ret)
-		goto error;
-
-	ret = cnic_alloc_l2_rings(dev, 2);
-	if (ret)
-		goto error;
-
 	uinfo = kzalloc(sizeof(*uinfo), GFP_ATOMIC);
 	if (!uinfo)
-		goto error;
+		return -ENOMEM;
 
 	uinfo->mem[0].addr = dev->netdev->base_addr;
 	uinfo->mem[0].internal_addr = dev->regview;

@@ -796,10 +777,15 @@ static int cnic_alloc_bnx2_resc(struct cnic_dev *dev)
 	uinfo->mem[0].memtype = UIO_MEM_PHYS;
 
 	uinfo->mem[1].addr = (unsigned long) cp->status_blk & PAGE_MASK;
-	if (cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
-		uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE * 9;
-	else
-		uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE;
+	if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
+		if (cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
+			uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE * 9;
+		else
+			uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE;
+
+		uinfo->name = "bnx2_cnic";
+	}
+
 	uinfo->mem[1].memtype = UIO_MEM_LOGICAL;
 
 	uinfo->mem[2].addr = (unsigned long) cp->l2_ring;

@@ -810,7 +796,6 @@ static int cnic_alloc_bnx2_resc(struct cnic_dev *dev)
 	uinfo->mem[3].size = cp->l2_buf_size;
 	uinfo->mem[3].memtype = UIO_MEM_LOGICAL;
 
-	uinfo->name = "bnx2_cnic";
 	uinfo->version = CNIC_MODULE_VERSION;
 	uinfo->irq = UIO_IRQ_CUSTOM;
 

@@ -822,10 +807,39 @@ static int cnic_alloc_bnx2_resc(struct cnic_dev *dev)
 	ret = uio_register_device(&dev->pcidev->dev, uinfo);
 	if (ret) {
 		kfree(uinfo);
-		goto error;
+		return ret;
 	}
 
 	cp->cnic_uinfo = uinfo;
+	return 0;
+}
+
+static int cnic_alloc_bnx2_resc(struct cnic_dev *dev)
+{
+	struct cnic_local *cp = dev->cnic_priv;
+	int ret;
+
+	ret = cnic_alloc_dma(dev, &cp->kwq_info, KWQ_PAGE_CNT, 1);
+	if (ret)
+		goto error;
+	cp->kwq = (struct kwqe **) cp->kwq_info.pg_arr;
+
+	ret = cnic_alloc_dma(dev, &cp->kcq_info, KCQ_PAGE_CNT, 1);
+	if (ret)
+		goto error;
+	cp->kcq = (struct kcqe **) cp->kcq_info.pg_arr;
+
+	ret = cnic_alloc_context(dev);
+	if (ret)
+		goto error;
+
+	ret = cnic_alloc_l2_rings(dev, 2);
+	if (ret)
+		goto error;
+
+	ret = cnic_alloc_uio(dev);
+	if (ret)
+		goto error;
 
 	return 0;
Signature · 1 line
1.6.4.GIT