[net-next-2.6 PATCH 0/10] enic: updates to version 1.4.1.1

[net-next-2.6 PATCH 0/10] enic: updates to version 1.4.1.1

[Vasanthy Kolluri]

The following patch series implements enic driver updates:

01/10 - Feature Add: Replace LRO with GRO
02/10 - Bug Fix: Change hardware ingress vlan rewrite mode
03/10 - Use a lighter reset operation for enic devices
04/10 - Clean up: Add wrapper routines for firmware devcmd calls
05/10 - Use (netdev|dev|pr)_<level> macro helpers for logging
06/10 - Add new firmware devcmds
07/10 - Use receive queue buffer blocks of 32/64 entries
08/10 - Feature Add: Add loopback capability to enic devices
09/10 - Bug Fix: Handle surprise hardware removals
10/10 - Clean ups

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>

[net-next-2.6 PATCH 01/10] enic: Feature Add: Replace LRO with GRO

[Vasanthy Kolluri]

From: Vasanthy Kolluri <vkolluri@cisco.com>

enic now uses the GRO mechanism instead of LRO to pass skbs to upper
layers.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
---
 drivers/net/Kconfig          |    1 -
 drivers/net/enic/enic.h      |    9 +----
 drivers/net/enic/enic_main.c |   79 ++++--------------------------------------
 3 files changed, 9 insertions(+), 80 deletions(-)

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index fe113d0..a0182a2 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2615,7 +2615,6 @@ config EHEA
 config ENIC
 	tristate "Cisco VIC Ethernet NIC Support"
 	depends on PCI && INET
-	select INET_LRO
 	help
 	  This enables the support for the Cisco VIC Ethernet card.
 
diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index 45e86d1..81c2ade 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -20,8 +20,6 @@
 #ifndef _ENIC_H_
 #define _ENIC_H_
 
-#include <linux/inet_lro.h>
-
 #include "vnic_enet.h"
 #include "vnic_dev.h"
 #include "vnic_wq.h"
@@ -34,13 +32,10 @@
 
 #define DRV_NAME		"enic"
 #define DRV_DESCRIPTION		"Cisco VIC Ethernet NIC Driver"
-#define DRV_VERSION		"1.3.1.1-pp"
+#define DRV_VERSION		"1.4.1.1"
 #define DRV_COPYRIGHT		"Copyright 2008-2009 Cisco Systems, Inc"
 #define PFX			DRV_NAME ": "
 
-#define ENIC_LRO_MAX_DESC	8
-#define ENIC_LRO_MAX_AGGR	64
-
 #define ENIC_BARS_MAX		6
 
 #define ENIC_WQ_MAX		8
@@ -124,8 +119,6 @@ struct enic {
 	u64 rq_truncated_pkts;
 	u64 rq_bad_fcs;
 	struct napi_struct napi;
-	struct net_lro_mgr lro_mgr;
-	struct net_lro_desc lro_desc[ENIC_LRO_MAX_DESC];
 
 	/* interrupt resource cache line section */
 	____cacheline_aligned struct vnic_intr intr[ENIC_INTR_MAX];
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index bc7d6b9..c2b848f 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -1287,51 +1287,6 @@ static int enic_set_rq_alloc_buf(struct enic *enic)
 	return 0;
 }
 
-static int enic_get_skb_header(struct sk_buff *skb, void **iphdr,
-	void **tcph, u64 *hdr_flags, void *priv)
-{
-	struct cq_enet_rq_desc *cq_desc = priv;
-	unsigned int ip_len;
-	struct iphdr *iph;
-
-	u8 type, color, eop, sop, ingress_port, vlan_stripped;
-	u8 fcoe, fcoe_sof, fcoe_fc_crc_ok, fcoe_enc_error, fcoe_eof;
-	u8 tcp_udp_csum_ok, udp, tcp, ipv4_csum_ok;
-	u8 ipv6, ipv4, ipv4_fragment, fcs_ok, rss_type, csum_not_calc;
-	u8 packet_error;
-	u16 q_number, completed_index, bytes_written, vlan, checksum;
-	u32 rss_hash;
-
-	cq_enet_rq_desc_dec(cq_desc,
-		&type, &color, &q_number, &completed_index,
-		&ingress_port, &fcoe, &eop, &sop, &rss_type,
-		&csum_not_calc, &rss_hash, &bytes_written,
-		&packet_error, &vlan_stripped, &vlan, &checksum,
-		&fcoe_sof, &fcoe_fc_crc_ok, &fcoe_enc_error,
-		&fcoe_eof, &tcp_udp_csum_ok, &udp, &tcp,
-		&ipv4_csum_ok, &ipv6, &ipv4, &ipv4_fragment,
-		&fcs_ok);
-
-	if (!(ipv4 && tcp && !ipv4_fragment))
-		return -1;
-
-	skb_reset_network_header(skb);
-	iph = ip_hdr(skb);
-
-	ip_len = ip_hdrlen(skb);
-	skb_set_transport_header(skb, ip_len);
-
-	/* check if ip header and tcp header are complete */
-	if (ntohs(iph->tot_len) < ip_len + tcp_hdrlen(skb))
-		return -1;
-
-	*hdr_flags = LRO_IPV4 | LRO_TCP;
-	*tcph = tcp_hdr(skb);
-	*iphdr = iph;
-
-	return 0;
-}
-
 static void enic_rq_indicate_buf(struct vnic_rq *rq,
 	struct cq_desc *cq_desc, struct vnic_rq_buf *buf,
 	int skipped, void *opaque)
@@ -1397,18 +1352,17 @@ static void enic_rq_indicate_buf(struct vnic_rq *rq,
 
 		if (enic->vlan_group && vlan_stripped) {
 
-			if ((netdev->features & NETIF_F_LRO) && ipv4)
-				lro_vlan_hwaccel_receive_skb(&enic->lro_mgr,
-					skb, enic->vlan_group,
-					vlan, cq_desc);
+			if (netdev->features & NETIF_F_GRO)
+				vlan_gro_receive(&enic->napi, enic->vlan_group,
+					vlan, skb);
 			else
 				vlan_hwaccel_receive_skb(skb,
 					enic->vlan_group, vlan);
 
 		} else {
 
-			if ((netdev->features & NETIF_F_LRO) && ipv4)
-				lro_receive_skb(&enic->lro_mgr, skb, cq_desc);
+			if (netdev->features & NETIF_F_GRO)
+				napi_gro_receive(&enic->napi, skb);
 			else
 				netif_receive_skb(skb);
 
@@ -1438,7 +1392,6 @@ static int enic_rq_service(struct vnic_dev *vdev, struct cq_desc *cq_desc,
 static int enic_poll(struct napi_struct *napi, int budget)
 {
 	struct enic *enic = container_of(napi, struct enic, napi);
-	struct net_device *netdev = enic->netdev;
 	unsigned int rq_work_to_do = budget;
 	unsigned int wq_work_to_do = -1; /* no limit */
 	unsigned int  work_done, rq_work_done, wq_work_done;
@@ -1478,12 +1431,9 @@ static int enic_poll(struct napi_struct *napi, int budget)
 	if (rq_work_done < rq_work_to_do) {
 
 		/* Some work done, but not enough to stay in polling,
-		 * flush all LROs and exit polling
+		 * exit polling
 		 */
 
-		if (netdev->features & NETIF_F_LRO)
-			lro_flush_all(&enic->lro_mgr);
-
 		napi_complete(napi);
 		vnic_intr_unmask(&enic->intr[ENIC_INTX_WQ_RQ]);
 	}
@@ -1494,7 +1444,6 @@ static int enic_poll(struct napi_struct *napi, int budget)
 static int enic_poll_msix(struct napi_struct *napi, int budget)
 {
 	struct enic *enic = container_of(napi, struct enic, napi);
-	struct net_device *netdev = enic->netdev;
 	unsigned int work_to_do = budget;
 	unsigned int work_done;
 	int err;
@@ -1528,12 +1477,9 @@ static int enic_poll_msix(struct napi_struct *napi, int budget)
 	if (work_done < work_to_do) {
 
 		/* Some work done, but not enough to stay in polling,
-		 * flush all LROs and exit polling
+		 * exit polling
 		 */
 
-		if (netdev->features & NETIF_F_LRO)
-			lro_flush_all(&enic->lro_mgr);
-
 		napi_complete(napi);
 		vnic_intr_unmask(&enic->intr[ENIC_MSIX_RQ]);
 	}
@@ -2378,21 +2324,12 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 		netdev->features |= NETIF_F_TSO |
 			NETIF_F_TSO6 | NETIF_F_TSO_ECN;
 	if (ENIC_SETTING(enic, LRO))
-		netdev->features |= NETIF_F_LRO;
+		netdev->features |= NETIF_F_GRO;
 	if (using_dac)
 		netdev->features |= NETIF_F_HIGHDMA;
 
 	enic->csum_rx_enabled = ENIC_SETTING(enic, RXCSUM);
 
-	enic->lro_mgr.max_aggr = ENIC_LRO_MAX_AGGR;
-	enic->lro_mgr.max_desc = ENIC_LRO_MAX_DESC;
-	enic->lro_mgr.lro_arr = enic->lro_desc;
-	enic->lro_mgr.get_skb_header = enic_get_skb_header;
-	enic->lro_mgr.features	= LRO_F_NAPI | LRO_F_EXTRACT_VLAN_ID;
-	enic->lro_mgr.dev = netdev;
-	enic->lro_mgr.ip_summed = CHECKSUM_COMPLETE;
-	enic->lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY;
-
 	err = register_netdev(netdev);
 	if (err) {
 		printk(KERN_ERR PFX

[net-next-2.6 PATCH 02/10] enic: Bug Fix: Change hardware ingress vlan rewrite mode

[Vasanthy Kolluri]

From: Vasanthy Kolluri <vkolluri@cisco.com>

The current ingress vlan rewrite mode setting lets the hardware strip off
the tag control information of a packet received on native vlan. As a
result, the priority bits are also lost. The fix is to change the ingress
vlan rewrite mode setting such that the complete tag control information is
retained for packets that belong to native vlan.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
---
 drivers/net/enic/cq_enet_desc.h |   16 ++++++++++++++--
 drivers/net/enic/enic_main.c    |   31 ++++++++++++++++++++++++++-----
 drivers/net/enic/vnic_dev.c     |   14 ++++++++++++++
 drivers/net/enic/vnic_dev.h     |    2 ++
 drivers/net/enic/vnic_devcmd.h  |   12 ++++++++++++
 5 files changed, 68 insertions(+), 7 deletions(-)

diff --git a/drivers/net/enic/cq_enet_desc.h b/drivers/net/enic/cq_enet_desc.h
index 337d194..f2d98bb 100644
--- a/drivers/net/enic/cq_enet_desc.h
+++ b/drivers/net/enic/cq_enet_desc.h
@@ -73,6 +73,15 @@ struct cq_enet_rq_desc {
 #define CQ_ENET_RQ_DESC_FLAGS_TRUNCATED             (0x1 << 14)
 #define CQ_ENET_RQ_DESC_FLAGS_VLAN_STRIPPED         (0x1 << 15)
 
+#define CQ_ENET_RQ_DESC_VLAN_TCI_VLAN_BITS          12
+#define CQ_ENET_RQ_DESC_VLAN_TCI_VLAN_MASK \
+	((1 << CQ_ENET_RQ_DESC_VLAN_TCI_VLAN_BITS) - 1)
+#define CQ_ENET_RQ_DESC_VLAN_TCI_CFI_MASK           (0x1 << 12)
+#define CQ_ENET_RQ_DESC_VLAN_TCI_USER_PRIO_BITS     3
+#define CQ_ENET_RQ_DESC_VLAN_TCI_USER_PRIO_MASK \
+	((1 << CQ_ENET_RQ_DESC_VLAN_TCI_USER_PRIO_BITS) - 1)
+#define CQ_ENET_RQ_DESC_VLAN_TCI_USER_PRIO_SHIFT    13
+
 #define CQ_ENET_RQ_DESC_FCOE_SOF_BITS               4
 #define CQ_ENET_RQ_DESC_FCOE_SOF_MASK \
 	((1 << CQ_ENET_RQ_DESC_FCOE_SOF_BITS) - 1)
@@ -96,7 +105,7 @@ static inline void cq_enet_rq_desc_dec(struct cq_enet_rq_desc *desc,
 	u8 *type, u8 *color, u16 *q_number, u16 *completed_index,
 	u8 *ingress_port, u8 *fcoe, u8 *eop, u8 *sop, u8 *rss_type,
 	u8 *csum_not_calc, u32 *rss_hash, u16 *bytes_written, u8 *packet_error,
-	u8 *vlan_stripped, u16 *vlan, u16 *checksum, u8 *fcoe_sof,
+	u8 *vlan_stripped, u16 *vlan_tci, u16 *checksum, u8 *fcoe_sof,
 	u8 *fcoe_fc_crc_ok, u8 *fcoe_enc_error, u8 *fcoe_eof,
 	u8 *tcp_udp_csum_ok, u8 *udp, u8 *tcp, u8 *ipv4_csum_ok,
 	u8 *ipv6, u8 *ipv4, u8 *ipv4_fragment, u8 *fcs_ok)
@@ -136,7 +145,10 @@ static inline void cq_enet_rq_desc_dec(struct cq_enet_rq_desc *desc,
 	*vlan_stripped = (bytes_written_flags &
 		CQ_ENET_RQ_DESC_FLAGS_VLAN_STRIPPED) ? 1 : 0;
 
-	*vlan = le16_to_cpu(desc->vlan);
+	/*
+	 * Tag Control Information(16) = user_priority(3) + cfi(1) + vlan(12)
+	 */
+	*vlan_tci = le16_to_cpu(desc->vlan);
 
 	if (*fcoe) {
 		*fcoe_sof = (u8)(le16_to_cpu(desc->checksum_fcoe) &
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index c2b848f..7f98af1 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -1300,7 +1300,7 @@ static void enic_rq_indicate_buf(struct vnic_rq *rq,
 	u8 tcp_udp_csum_ok, udp, tcp, ipv4_csum_ok;
 	u8 ipv6, ipv4, ipv4_fragment, fcs_ok, rss_type, csum_not_calc;
 	u8 packet_error;
-	u16 q_number, completed_index, bytes_written, vlan, checksum;
+	u16 q_number, completed_index, bytes_written, vlan_tci, checksum;
 	u32 rss_hash;
 
 	if (skipped)
@@ -1315,7 +1315,7 @@ static void enic_rq_indicate_buf(struct vnic_rq *rq,
 		&type, &color, &q_number, &completed_index,
 		&ingress_port, &fcoe, &eop, &sop, &rss_type,
 		&csum_not_calc, &rss_hash, &bytes_written,
-		&packet_error, &vlan_stripped, &vlan, &checksum,
+		&packet_error, &vlan_stripped, &vlan_tci, &checksum,
 		&fcoe_sof, &fcoe_fc_crc_ok, &fcoe_enc_error,
 		&fcoe_eof, &tcp_udp_csum_ok, &udp, &tcp,
 		&ipv4_csum_ok, &ipv6, &ipv4, &ipv4_fragment,
@@ -1350,14 +1350,15 @@ static void enic_rq_indicate_buf(struct vnic_rq *rq,
 
 		skb->dev = netdev;
 
-		if (enic->vlan_group && vlan_stripped) {
+		if (enic->vlan_group && vlan_stripped &&
+			(vlan_tci & CQ_ENET_RQ_DESC_VLAN_TCI_VLAN_MASK)) {
 
 			if (netdev->features & NETIF_F_GRO)
 				vlan_gro_receive(&enic->napi, enic->vlan_group,
-					vlan, skb);
+					vlan_tci, skb);
 			else
 				vlan_hwaccel_receive_skb(skb,
-					enic->vlan_group, vlan);
+					enic->vlan_group, vlan_tci);
 
 		} else {
 
@@ -1879,6 +1880,18 @@ static int enic_set_niccfg(struct enic *enic)
 		ig_vlan_strip_en);
 }
 
+int enic_dev_set_ig_vlan_rewrite_mode(struct enic *enic)
+{
+	int err;
+
+	spin_lock(&enic->devcmd_lock);
+	err = vnic_dev_set_ig_vlan_rewrite_mode(enic->vdev,
+		IG_VLAN_REWRITE_MODE_PRIORITY_TAG_DEFAULT_VLAN);
+	spin_unlock(&enic->devcmd_lock);
+
+	return err;
+}
+
 static void enic_reset(struct work_struct *work)
 {
 	struct enic *enic = container_of(work, struct enic, reset);
@@ -1898,6 +1911,7 @@ static void enic_reset(struct work_struct *work)
 	enic_reset_mcaddrs(enic);
 	enic_init_vnic_resources(enic);
 	enic_set_niccfg(enic);
+	enic_dev_set_ig_vlan_rewrite_mode(enic);
 	enic_open(enic->netdev);
 
 	rtnl_unlock();
@@ -2110,6 +2124,13 @@ int enic_dev_init(struct enic *enic)
 		goto err_out_free_vnic_resources;
 	}
 
+	err = enic_dev_set_ig_vlan_rewrite_mode(enic);
+	if (err) {
+		printk(KERN_ERR PFX
+			"Failed to set ingress vlan rewrite mode, aborting.\n");
+		goto err_out_free_vnic_resources;
+	}
+
 	switch (vnic_dev_get_intr_mode(enic->vdev)) {
 	default:
 		netif_napi_add(netdev, &enic->napi, enic_poll, 64);
diff --git a/drivers/net/enic/vnic_dev.c b/drivers/net/enic/vnic_dev.c
index e0d3328..e3742fa 100644
--- a/drivers/net/enic/vnic_dev.c
+++ b/drivers/net/enic/vnic_dev.c
@@ -564,6 +564,20 @@ int vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr)
 	return err;
 }
 
+int vnic_dev_set_ig_vlan_rewrite_mode(struct vnic_dev *vdev,
+	u8 ig_vlan_rewrite_mode)
+{
+	u64 a0 = ig_vlan_rewrite_mode, a1 = 0;
+	int wait = 1000;
+	int err;
+
+	err = vnic_dev_cmd(vdev, CMD_IG_VLAN_REWRITE_MODE, &a0, &a1, wait);
+	if (err == ERR_ECMDUNKNOWN)
+		return 0;
+
+	return err;
+}
+
 int vnic_dev_raise_intr(struct vnic_dev *vdev, u16 intr)
 {
 	u64 a0 = intr, a1 = 0;
diff --git a/drivers/net/enic/vnic_dev.h b/drivers/net/enic/vnic_dev.h
index caccce3..780c3cd 100644
--- a/drivers/net/enic/vnic_dev.h
+++ b/drivers/net/enic/vnic_dev.h
@@ -133,6 +133,8 @@ void vnic_dev_set_intr_mode(struct vnic_dev *vdev,
 	enum vnic_dev_intr_mode intr_mode);
 enum vnic_dev_intr_mode vnic_dev_get_intr_mode(struct vnic_dev *vdev);
 void vnic_dev_unregister(struct vnic_dev *vdev);
+int vnic_dev_set_ig_vlan_rewrite_mode(struct vnic_dev *vdev,
+	u8 ig_vlan_rewrite_mode);
 struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev,
 	void *priv, struct pci_dev *pdev, struct vnic_dev_bar *bar,
 	unsigned int num_bars);
diff --git a/drivers/net/enic/vnic_devcmd.h b/drivers/net/enic/vnic_devcmd.h
index d78bbcc..c5ff4ff 100644
--- a/drivers/net/enic/vnic_devcmd.h
+++ b/drivers/net/enic/vnic_devcmd.h
@@ -211,6 +211,12 @@ enum vnic_devcmd_cmd {
 	 * in: (u16)a0=interrupt number to assert
 	 */
 	CMD_IAR			= _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 38),
+
+	/*
+	 * Set hw ingress packet vlan rewrite mode:
+	 * in:  (u32)a0=new vlan rewrite mode
+	 * out: (u32)a0=old vlan rewrite mode */
+	CMD_IG_VLAN_REWRITE_MODE = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ENET, 41),
 };
 
 /* flags for CMD_OPEN */
@@ -226,6 +232,12 @@ enum vnic_devcmd_cmd {
 #define CMD_PFILTER_PROMISCUOUS		0x08
 #define CMD_PFILTER_ALL_MULTICAST	0x10
 
+/* rewrite modes for CMD_IG_VLAN_REWRITE_MODE */
+#define IG_VLAN_REWRITE_MODE_DEFAULT_TRUNK              0
+#define IG_VLAN_REWRITE_MODE_UNTAG_DEFAULT_VLAN         1
+#define IG_VLAN_REWRITE_MODE_PRIORITY_TAG_DEFAULT_VLAN  2
+#define IG_VLAN_REWRITE_MODE_PASS_THRU                  3
+
 enum vnic_devcmd_status {
 	STAT_NONE = 0,
 	STAT_BUSY = 1 << 0,	/* cmd in progress */

[net-next-2.6 PATCH 03/10] enic: Use a lighter reset operation for enic devices

[Vasanthy Kolluri]

From: Vasanthy Kolluri <vkolluri@cisco.com>

The port profile information for a dynamic enic device is set by the upper
layers, that are oblivious to the device reset operation. We do not want a
reset operation erase the network state of a dynamic enic device as there
is no way to set up the port profile information again. Hence a lighter
reset operation called hang reset is used. Hang reset, unlike soft reset
does not reset the network state and resets the host side state only.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
---
 drivers/net/enic/enic_main.c   |   16 ++++++++--------
 drivers/net/enic/vnic_dev.c    |   38 ++++++++++++++++++++++++++++++++++++++
 drivers/net/enic/vnic_dev.h    |    2 ++
 drivers/net/enic/vnic_devcmd.h |    7 +++++++
 4 files changed, 55 insertions(+), 8 deletions(-)

diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 7f98af1..d7434b7 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -812,9 +812,10 @@ static struct net_device_stats *enic_get_stats(struct net_device *netdev)
 	return net_stats;
 }
 
-static void enic_reset_mcaddrs(struct enic *enic)
+static void enic_reset_multicast_list(struct enic *enic)
 {
 	enic->mc_count = 0;
+	enic->flags = 0;
 }
 
 static int enic_set_mac_addr(struct net_device *netdev, char *addr)
@@ -1847,15 +1848,15 @@ static int enic_dev_open(struct enic *enic)
 	return err;
 }
 
-static int enic_dev_soft_reset(struct enic *enic)
+static int enic_dev_hang_reset(struct enic *enic)
 {
 	int err;
 
-	err = enic_dev_wait(enic->vdev, vnic_dev_soft_reset,
-		vnic_dev_soft_reset_done, 0);
+	err = enic_dev_wait(enic->vdev, vnic_dev_hang_reset,
+		vnic_dev_hang_reset_done, 0);
 	if (err)
 		printk(KERN_ERR PFX
-			"vNIC soft reset failed, err %d.\n", err);
+			"vNIC hang reset failed, err %d.\n", err);
 
 	return err;
 }
@@ -1906,9 +1907,8 @@ static void enic_reset(struct work_struct *work)
 	spin_unlock(&enic->devcmd_lock);
 
 	enic_stop(enic->netdev);
-	enic_dev_soft_reset(enic);
-	vnic_dev_init(enic->vdev, 0);
-	enic_reset_mcaddrs(enic);
+	enic_dev_hang_reset(enic);
+	enic_reset_multicast_list(enic);
 	enic_init_vnic_resources(enic);
 	enic_set_niccfg(enic);
 	enic_dev_set_ig_vlan_rewrite_mode(enic);
diff --git a/drivers/net/enic/vnic_dev.c b/drivers/net/enic/vnic_dev.c
index e3742fa..c93012f 100644
--- a/drivers/net/enic/vnic_dev.c
+++ b/drivers/net/enic/vnic_dev.c
@@ -486,6 +486,44 @@ int vnic_dev_soft_reset_done(struct vnic_dev *vdev, int *done)
 	return 0;
 }
 
+int vnic_dev_hang_reset(struct vnic_dev *vdev, int arg)
+{
+	u64 a0 = (u32)arg, a1 = 0;
+	int wait = 1000;
+	int err;
+
+	err = vnic_dev_cmd(vdev, CMD_HANG_RESET, &a0, &a1, wait);
+	if (err == ERR_ECMDUNKNOWN) {
+		err = vnic_dev_soft_reset(vdev, arg);
+		if (err)
+			return err;
+
+		return vnic_dev_init(vdev, 0);
+	}
+
+	return err;
+}
+
+int vnic_dev_hang_reset_done(struct vnic_dev *vdev, int *done)
+{
+	u64 a0 = 0, a1 = 0;
+	int wait = 1000;
+	int err;
+
+	*done = 0;
+
+	err = vnic_dev_cmd(vdev, CMD_HANG_RESET_STATUS, &a0, &a1, wait);
+	if (err) {
+		if (err == ERR_ECMDUNKNOWN)
+			return vnic_dev_soft_reset_done(vdev, done);
+		return err;
+	}
+
+	*done = (a0 == 0);
+
+	return 0;
+}
+
 int vnic_dev_hang_notify(struct vnic_dev *vdev)
 {
 	u64 a0, a1;
diff --git a/drivers/net/enic/vnic_dev.h b/drivers/net/enic/vnic_dev.h
index 780c3cd..4980615 100644
--- a/drivers/net/enic/vnic_dev.h
+++ b/drivers/net/enic/vnic_dev.h
@@ -129,6 +129,8 @@ int vnic_dev_init_prov(struct vnic_dev *vdev, u8 *buf, u32 len);
 int vnic_dev_deinit(struct vnic_dev *vdev);
 int vnic_dev_soft_reset(struct vnic_dev *vdev, int arg);
 int vnic_dev_soft_reset_done(struct vnic_dev *vdev, int *done);
+int vnic_dev_hang_reset(struct vnic_dev *vdev, int arg);
+int vnic_dev_hang_reset_done(struct vnic_dev *vdev, int *done);
 void vnic_dev_set_intr_mode(struct vnic_dev *vdev,
 	enum vnic_dev_intr_mode intr_mode);
 enum vnic_dev_intr_mode vnic_dev_get_intr_mode(struct vnic_dev *vdev);
diff --git a/drivers/net/enic/vnic_devcmd.h b/drivers/net/enic/vnic_devcmd.h
index c5ff4ff..1c4fb35 100644
--- a/drivers/net/enic/vnic_devcmd.h
+++ b/drivers/net/enic/vnic_devcmd.h
@@ -212,6 +212,13 @@ enum vnic_devcmd_cmd {
 	 */
 	CMD_IAR			= _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 38),
 
+	/* initiate hangreset, like softreset after hang detected */
+	CMD_HANG_RESET		= _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 39),
+
+	/* hangreset status:
+	 *    out: a0=0 reset complete, a0=1 reset in progress */
+	CMD_HANG_RESET_STATUS   = _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 40),
+
 	/*
 	 * Set hw ingress packet vlan rewrite mode:
 	 * in:  (u32)a0=new vlan rewrite mode

[net-next-2.6 PATCH 04/10] enic: Clean up: Add wrapper routines for firmware devcmd calls

[Vasanthy Kolluri]

From: Vasanthy Kolluri <vkolluri@cisco.com>

Add wrapper routines that issue devcmds to firmware and ensure that a
devcmd lock is held for each devcmd call.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
---
 drivers/net/enic/enic_main.c |  226 ++++++++++++++++++++++++++++++++----------
 drivers/net/enic/enic_res.c  |   23 +---
 drivers/net/enic/enic_res.h  |    6 -
 drivers/net/enic/vnic_dev.c  |   23 +++-
 drivers/net/enic/vnic_dev.h  |    7 +
 5 files changed, 201 insertions(+), 84 deletions(-)

diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index d7434b7..9e05805 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -145,15 +145,25 @@ static int enic_get_settings(struct net_device *netdev,
 	return 0;
 }
 
+static int enic_dev_fw_info(struct enic *enic,
+	struct vnic_devcmd_fw_info **fw_info)
+{
+	int err;
+
+	spin_lock(&enic->devcmd_lock);
+	err = vnic_dev_fw_info(enic->vdev, fw_info);
+	spin_unlock(&enic->devcmd_lock);
+
+	return err;
+}
+
 static void enic_get_drvinfo(struct net_device *netdev,
 	struct ethtool_drvinfo *drvinfo)
 {
 	struct enic *enic = netdev_priv(netdev);
 	struct vnic_devcmd_fw_info *fw_info;
 
-	spin_lock(&enic->devcmd_lock);
-	vnic_dev_fw_info(enic->vdev, &fw_info);
-	spin_unlock(&enic->devcmd_lock);
+	enic_dev_fw_info(enic, &fw_info);
 
 	strncpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
 	strncpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version));
@@ -191,6 +201,17 @@ static int enic_get_sset_count(struct net_device *netdev, int sset)
 	}
 }
 
+static int enic_dev_stats_dump(struct enic *enic, struct vnic_stats **vstats)
+{
+	int err;
+
+	spin_lock(&enic->devcmd_lock);
+	err = vnic_dev_stats_dump(enic->vdev, vstats);
+	spin_unlock(&enic->devcmd_lock);
+
+	return err;
+}
+
 static void enic_get_ethtool_stats(struct net_device *netdev,
 	struct ethtool_stats *stats, u64 *data)
 {
@@ -198,9 +219,7 @@ static void enic_get_ethtool_stats(struct net_device *netdev,
 	struct vnic_stats *vstats;
 	unsigned int i;
 
-	spin_lock(&enic->devcmd_lock);
-	vnic_dev_stats_dump(enic->vdev, &vstats);
-	spin_unlock(&enic->devcmd_lock);
+	enic_dev_stats_dump(enic, &vstats);
 
 	for (i = 0; i < enic_n_tx_stats; i++)
 		*(data++) = ((u64 *)&vstats->tx)[enic_tx_stats[i].offset];
@@ -411,17 +430,14 @@ static void enic_log_q_error(struct enic *enic)
 	}
 }
 
-static void enic_link_check(struct enic *enic)
+static void enic_msglvl_check(struct enic *enic)
 {
-	int link_status = vnic_dev_link_status(enic->vdev);
-	int carrier_ok = netif_carrier_ok(enic->netdev);
+	u32 msg_enable = vnic_dev_msg_lvl(enic->vdev);
 
-	if (link_status && !carrier_ok) {
-		printk(KERN_INFO PFX "%s: Link UP\n", enic->netdev->name);
-		netif_carrier_on(enic->netdev);
-	} else if (!link_status && carrier_ok) {
-		printk(KERN_INFO PFX "%s: Link DOWN\n", enic->netdev->name);
-		netif_carrier_off(enic->netdev);
+	if (msg_enable != enic->msg_enable) {
+		printk(KERN_INFO PFX "%s: msg lvl changed from 0x%x to 0x%x\n",
+			enic->netdev->name, enic->msg_enable, msg_enable);
+		enic->msg_enable = msg_enable;
 	}
 }
 
@@ -439,14 +455,17 @@ static void enic_mtu_check(struct enic *enic)
 	}
 }
 
-static void enic_msglvl_check(struct enic *enic)
+static void enic_link_check(struct enic *enic)
 {
-	u32 msg_enable = vnic_dev_msg_lvl(enic->vdev);
+	int link_status = vnic_dev_link_status(enic->vdev);
+	int carrier_ok = netif_carrier_ok(enic->netdev);
 
-	if (msg_enable != enic->msg_enable) {
-		printk(KERN_INFO PFX "%s: msg lvl changed from 0x%x to 0x%x\n",
-			enic->netdev->name, enic->msg_enable, msg_enable);
-		enic->msg_enable = msg_enable;
+	if (link_status && !carrier_ok) {
+		printk(KERN_INFO PFX "%s: Link UP\n", enic->netdev->name);
+		netif_carrier_on(enic->netdev);
+	} else if (!link_status && carrier_ok) {
+		printk(KERN_INFO PFX "%s: Link DOWN\n", enic->netdev->name);
+		netif_carrier_off(enic->netdev);
 	}
 }
 
@@ -792,9 +811,7 @@ static struct net_device_stats *enic_get_stats(struct net_device *netdev)
 	struct net_device_stats *net_stats = &netdev->stats;
 	struct vnic_stats *stats;
 
-	spin_lock(&enic->devcmd_lock);
-	vnic_dev_stats_dump(enic->vdev, &stats);
-	spin_unlock(&enic->devcmd_lock);
+	enic_dev_stats_dump(enic, &stats);
 
 	net_stats->tx_packets = stats->tx.tx_frames_ok;
 	net_stats->tx_bytes = stats->tx.tx_bytes_ok;
@@ -892,6 +909,41 @@ static int enic_set_mac_address(struct net_device *netdev, void *p)
 	return -EOPNOTSUPP;
 }
 
+static int enic_dev_packet_filter(struct enic *enic, int directed,
+	int multicast, int broadcast, int promisc, int allmulti)
+{
+	int err;
+
+	spin_lock(&enic->devcmd_lock);
+	err = vnic_dev_packet_filter(enic->vdev, directed,
+		multicast, broadcast, promisc, allmulti);
+	spin_unlock(&enic->devcmd_lock);
+
+	return err;
+}
+
+static int enic_dev_add_multicast_addr(struct enic *enic, u8 *addr)
+{
+	int err;
+
+	spin_lock(&enic->devcmd_lock);
+	err = vnic_dev_add_addr(enic->vdev, addr);
+	spin_unlock(&enic->devcmd_lock);
+
+	return err;
+}
+
+static int enic_dev_del_multicast_addr(struct enic *enic, u8 *addr)
+{
+	int err;
+
+	spin_lock(&enic->devcmd_lock);
+	err = vnic_dev_del_addr(enic->vdev, addr);
+	spin_unlock(&enic->devcmd_lock);
+
+	return err;
+}
+
 /* netif_tx_lock held, BHs disabled */
 static void enic_set_multicast_list(struct net_device *netdev)
 {
@@ -911,11 +963,9 @@ static void enic_set_multicast_list(struct net_device *netdev)
 	if (mc_count > ENIC_MULTICAST_PERFECT_FILTERS)
 		mc_count = ENIC_MULTICAST_PERFECT_FILTERS;
 
-	spin_lock(&enic->devcmd_lock);
-
 	if (enic->flags != flags) {
 		enic->flags = flags;
-		vnic_dev_packet_filter(enic->vdev, directed,
+		enic_dev_packet_filter(enic, directed,
 			multicast, broadcast, promisc, allmulti);
 	}
 
@@ -938,7 +988,7 @@ static void enic_set_multicast_list(struct net_device *netdev)
 				mc_addr[j]) == 0)
 				break;
 		if (j == mc_count)
-			enic_del_multicast_addr(enic, enic->mc_addr[i]);
+			enic_dev_del_multicast_addr(enic, enic->mc_addr[i]);
 	}
 
 	for (i = 0; i < mc_count; i++) {
@@ -947,7 +997,7 @@ static void enic_set_multicast_list(struct net_device *netdev)
 				enic->mc_addr[j]) == 0)
 				break;
 		if (j == enic->mc_count)
-			enic_add_multicast_addr(enic, mc_addr[i]);
+			enic_dev_add_multicast_addr(enic, mc_addr[i]);
 	}
 
 	/* Save the list to compare against next time
@@ -957,8 +1007,6 @@ static void enic_set_multicast_list(struct net_device *netdev)
 		memcpy(enic->mc_addr[i], mc_addr[i], ETH_ALEN);
 
 	enic->mc_count = mc_count;
-
-	spin_unlock(&enic->devcmd_lock);
 }
 
 /* rtnl lock is held */
@@ -1264,12 +1312,24 @@ static int enic_rq_alloc_buf_a1(struct vnic_rq *rq)
 	return 0;
 }
 
+static int enic_dev_hw_version(struct enic *enic,
+	enum vnic_dev_hw_version *hw_ver)
+{
+	int err;
+
+	spin_lock(&enic->devcmd_lock);
+	err = vnic_dev_hw_version(enic->vdev, hw_ver);
+	spin_unlock(&enic->devcmd_lock);
+
+	return err;
+}
+
 static int enic_set_rq_alloc_buf(struct enic *enic)
 {
 	enum vnic_dev_hw_version hw_ver;
 	int err;
 
-	err = vnic_dev_hw_version(enic->vdev, &hw_ver);
+	err = enic_dev_hw_version(enic, &hw_ver);
 	if (err)
 		return err;
 
@@ -1603,7 +1663,7 @@ static void enic_synchronize_irqs(struct enic *enic)
 	}
 }
 
-static int enic_notify_set(struct enic *enic)
+static int enic_dev_notify_set(struct enic *enic)
 {
 	int err;
 
@@ -1624,6 +1684,39 @@ static int enic_notify_set(struct enic *enic)
 	return err;
 }
 
+static int enic_dev_notify_unset(struct enic *enic)
+{
+	int err;
+
+	spin_lock(&enic->devcmd_lock);
+	err = vnic_dev_notify_unset(enic->vdev);
+	spin_unlock(&enic->devcmd_lock);
+
+	return err;
+}
+
+static int enic_dev_enable(struct enic *enic)
+{
+	int err;
+
+	spin_lock(&enic->devcmd_lock);
+	err = vnic_dev_enable(enic->vdev);
+	spin_unlock(&enic->devcmd_lock);
+
+	return err;
+}
+
+static int enic_dev_disable(struct enic *enic)
+{
+	int err;
+
+	spin_lock(&enic->devcmd_lock);
+	err = vnic_dev_disable(enic->vdev);
+	spin_unlock(&enic->devcmd_lock);
+
+	return err;
+}
+
 static void enic_notify_timer_start(struct enic *enic)
 {
 	switch (vnic_dev_get_intr_mode(enic->vdev)) {
@@ -1650,7 +1743,7 @@ static int enic_open(struct net_device *netdev)
 		return err;
 	}
 
-	err = enic_notify_set(enic);
+	err = enic_dev_notify_set(enic);
 	if (err) {
 		printk(KERN_ERR PFX
 			"%s: Failed to alloc notify buffer, aborting.\n",
@@ -1680,9 +1773,7 @@ static int enic_open(struct net_device *netdev)
 
 	netif_wake_queue(netdev);
 	napi_enable(&enic->napi);
-	spin_lock(&enic->devcmd_lock);
-	vnic_dev_enable(enic->vdev);
-	spin_unlock(&enic->devcmd_lock);
+	enic_dev_enable(enic);
 
 	for (i = 0; i < enic->intr_count; i++)
 		vnic_intr_unmask(&enic->intr[i]);
@@ -1692,9 +1783,7 @@ static int enic_open(struct net_device *netdev)
 	return 0;
 
 err_out_notify_unset:
-	spin_lock(&enic->devcmd_lock);
-	vnic_dev_notify_unset(enic->vdev);
-	spin_unlock(&enic->devcmd_lock);
+	enic_dev_notify_unset(enic);
 err_out_free_intr:
 	enic_free_intr(enic);
 
@@ -1715,9 +1804,7 @@ static int enic_stop(struct net_device *netdev)
 
 	del_timer_sync(&enic->notify_timer);
 
-	spin_lock(&enic->devcmd_lock);
-	vnic_dev_disable(enic->vdev);
-	spin_unlock(&enic->devcmd_lock);
+	enic_dev_disable(enic);
 	napi_disable(&enic->napi);
 	netif_carrier_off(netdev);
 	netif_tx_disable(netdev);
@@ -1735,9 +1822,7 @@ static int enic_stop(struct net_device *netdev)
 			return err;
 	}
 
-	spin_lock(&enic->devcmd_lock);
-	vnic_dev_notify_unset(enic->vdev);
-	spin_unlock(&enic->devcmd_lock);
+	enic_dev_notify_unset(enic);
 	enic_free_intr(enic);
 
 	for (i = 0; i < enic->wq_count; i++)
@@ -1870,15 +1955,31 @@ static int enic_set_niccfg(struct enic *enic)
 	const u8 rss_enable = 0;
 	const u8 tso_ipid_split_en = 0;
 	const u8 ig_vlan_strip_en = 1;
+	int err;
 
 	/* Enable VLAN tag stripping.  RSS not enabled (yet).
 	 */
 
-	return enic_set_nic_cfg(enic,
+	spin_lock(&enic->devcmd_lock);
+	err = enic_set_nic_cfg(enic,
 		rss_default_cpu, rss_hash_type,
 		rss_hash_bits, rss_base_cpu,
 		rss_enable, tso_ipid_split_en,
 		ig_vlan_strip_en);
+	spin_unlock(&enic->devcmd_lock);
+
+	return err;
+}
+
+static int enic_dev_hang_notify(struct enic *enic)
+{
+	int err;
+
+	spin_lock(&enic->devcmd_lock);
+	err = vnic_dev_hang_notify(enic->vdev);
+	spin_unlock(&enic->devcmd_lock);
+
+	return err;
 }
 
 int enic_dev_set_ig_vlan_rewrite_mode(struct enic *enic)
@@ -1902,10 +2003,7 @@ static void enic_reset(struct work_struct *work)
 
 	rtnl_lock();
 
-	spin_lock(&enic->devcmd_lock);
-	vnic_dev_hang_notify(enic->vdev);
-	spin_unlock(&enic->devcmd_lock);
-
+	enic_dev_hang_notify(enic);
 	enic_stop(enic->netdev);
 	enic_dev_hang_reset(enic);
 	enic_reset_multicast_list(enic);
@@ -2047,8 +2145,8 @@ static const struct net_device_ops enic_netdev_ops = {
 	.ndo_start_xmit		= enic_hard_start_xmit,
 	.ndo_get_stats		= enic_get_stats,
 	.ndo_validate_addr	= eth_validate_addr,
-	.ndo_set_multicast_list	= enic_set_multicast_list,
 	.ndo_set_mac_address	= enic_set_mac_address,
+	.ndo_set_multicast_list	= enic_set_multicast_list,
 	.ndo_change_mtu		= enic_change_mtu,
 	.ndo_vlan_rx_register	= enic_vlan_rx_register,
 	.ndo_vlan_rx_add_vid	= enic_vlan_rx_add_vid,
@@ -2066,6 +2164,17 @@ void enic_dev_deinit(struct enic *enic)
 	enic_clear_intr_mode(enic);
 }
 
+static int enic_dev_stats_clear(struct enic *enic)
+{
+	int err;
+
+	spin_lock(&enic->devcmd_lock);
+	err = vnic_dev_stats_clear(enic->vdev);
+	spin_unlock(&enic->devcmd_lock);
+
+	return err;
+}
+
 int enic_dev_init(struct enic *enic)
 {
 	struct net_device *netdev = enic->netdev;
@@ -2110,6 +2219,10 @@ int enic_dev_init(struct enic *enic)
 
 	enic_init_vnic_resources(enic);
 
+	/* Clear LIF stats
+	 */
+	enic_dev_stats_clear(enic);
+
 	err = enic_set_rq_alloc_buf(enic);
 	if (err) {
 		printk(KERN_ERR PFX
@@ -2293,6 +2406,11 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 		}
 	}
 
+	/* Setup devcmd lock
+	 */
+
+	spin_lock_init(&enic->devcmd_lock);
+
 	err = enic_dev_init(enic);
 	if (err) {
 		printk(KERN_ERR PFX
@@ -2300,7 +2418,7 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 		goto err_out_dev_close;
 	}
 
-	/* Setup notification timer, HW reset task, and locks
+	/* Setup notification timer, HW reset task, and wq locks
 	 */
 
 	init_timer(&enic->notify_timer);
@@ -2312,8 +2430,6 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 	for (i = 0; i < enic->wq_count; i++)
 		spin_lock_init(&enic->wq_lock[i]);
 
-	spin_lock_init(&enic->devcmd_lock);
-
 	/* Register net device
 	 */
 
diff --git a/drivers/net/enic/enic_res.c b/drivers/net/enic/enic_res.c
index 9b18840..04cfc4e 100644
--- a/drivers/net/enic/enic_res.c
+++ b/drivers/net/enic/enic_res.c
@@ -103,17 +103,7 @@ int enic_get_vnic_config(struct enic *enic)
 	return 0;
 }
 
-void enic_add_multicast_addr(struct enic *enic, u8 *addr)
-{
-	vnic_dev_add_addr(enic->vdev, addr);
-}
-
-void enic_del_multicast_addr(struct enic *enic, u8 *addr)
-{
-	vnic_dev_del_addr(enic->vdev, addr);
-}
-
-void enic_add_vlan(struct enic *enic, u16 vlanid)
+int enic_add_vlan(struct enic *enic, u16 vlanid)
 {
 	u64 a0 = vlanid, a1 = 0;
 	int wait = 1000;
@@ -122,9 +112,11 @@ void enic_add_vlan(struct enic *enic, u16 vlanid)
 	err = vnic_dev_cmd(enic->vdev, CMD_VLAN_ADD, &a0, &a1, wait);
 	if (err)
 		printk(KERN_ERR PFX "Can't add vlan id, %d\n", err);
+
+	return err;
 }
 
-void enic_del_vlan(struct enic *enic, u16 vlanid)
+int enic_del_vlan(struct enic *enic, u16 vlanid)
 {
 	u64 a0 = vlanid, a1 = 0;
 	int wait = 1000;
@@ -133,6 +125,8 @@ void enic_del_vlan(struct enic *enic, u16 vlanid)
 	err = vnic_dev_cmd(enic->vdev, CMD_VLAN_DEL, &a0, &a1, wait);
 	if (err)
 		printk(KERN_ERR PFX "Can't delete vlan id, %d\n", err);
+
+	return err;
 }
 
 int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
@@ -304,11 +298,6 @@ void enic_init_vnic_resources(struct enic *enic)
 			enic->config.intr_timer_type,
 			mask_on_assertion);
 	}
-
-	/* Clear LIF stats
-	 */
-
-	vnic_dev_stats_clear(enic->vdev);
 }
 
 int enic_alloc_vnic_resources(struct enic *enic)
diff --git a/drivers/net/enic/enic_res.h b/drivers/net/enic/enic_res.h
index 494664f..3f6e039 100644
--- a/drivers/net/enic/enic_res.h
+++ b/drivers/net/enic/enic_res.h
@@ -131,10 +131,8 @@ static inline void enic_queue_rq_desc(struct vnic_rq *rq,
 struct enic;
 
 int enic_get_vnic_config(struct enic *);
-void enic_add_multicast_addr(struct enic *enic, u8 *addr);
-void enic_del_multicast_addr(struct enic *enic, u8 *addr);
-void enic_add_vlan(struct enic *enic, u16 vlanid);
-void enic_del_vlan(struct enic *enic, u16 vlanid);
+int enic_add_vlan(struct enic *enic, u16 vlanid);
+int enic_del_vlan(struct enic *enic, u16 vlanid);
 int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
 	u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
 	u8 ig_vlan_strip_en);
diff --git a/drivers/net/enic/vnic_dev.c b/drivers/net/enic/vnic_dev.c
index c93012f..bebadb3 100644
--- a/drivers/net/enic/vnic_dev.c
+++ b/drivers/net/enic/vnic_dev.c
@@ -550,7 +550,7 @@ int vnic_dev_mac_addr(struct vnic_dev *vdev, u8 *mac_addr)
 	return 0;
 }
 
-void vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast,
+int vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast,
 	int broadcast, int promisc, int allmulti)
 {
 	u64 a0, a1 = 0;
@@ -566,6 +566,8 @@ void vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast,
 	err = vnic_dev_cmd(vdev, CMD_PACKET_FILTER, &a0, &a1, wait);
 	if (err)
 		printk(KERN_ERR "Can't set packet filter\n");
+
+	return err;
 }
 
 int vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr)
@@ -670,22 +672,25 @@ int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr)
 	return vnic_dev_notify_setcmd(vdev, notify_addr, notify_pa, intr);
 }
 
-void vnic_dev_notify_unsetcmd(struct vnic_dev *vdev)
+int vnic_dev_notify_unsetcmd(struct vnic_dev *vdev)
 {
 	u64 a0, a1;
 	int wait = 1000;
+	int err;
 
 	a0 = 0;  /* paddr = 0 to unset notify buffer */
 	a1 = 0x0000ffff00000000ULL; /* intr num = -1 to unreg for intr */
 	a1 += sizeof(struct vnic_devcmd_notify);
 
-	vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait);
+	err = vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait);
 	vdev->notify = NULL;
 	vdev->notify_pa = 0;
 	vdev->notify_sz = 0;
+
+	return err;
 }
 
-void vnic_dev_notify_unset(struct vnic_dev *vdev)
+int vnic_dev_notify_unset(struct vnic_dev *vdev)
 {
 	if (vdev->notify) {
 		pci_free_consistent(vdev->pdev,
@@ -694,7 +699,7 @@ void vnic_dev_notify_unset(struct vnic_dev *vdev)
 			vdev->notify_pa);
 	}
 
-	vnic_dev_notify_unsetcmd(vdev);
+	return vnic_dev_notify_unsetcmd(vdev);
 }
 
 static int vnic_dev_notify_ready(struct vnic_dev *vdev)
@@ -839,6 +844,14 @@ u32 vnic_dev_notify_status(struct vnic_dev *vdev)
 	return vdev->notify_copy.status;
 }
 
+u32 vnic_dev_uif(struct vnic_dev *vdev)
+{
+	if (!vnic_dev_notify_ready(vdev))
+		return 0;
+
+	return vdev->notify_copy.uif;
+}
+
 void vnic_dev_set_intr_mode(struct vnic_dev *vdev,
 	enum vnic_dev_intr_mode intr_mode)
 {
diff --git a/drivers/net/enic/vnic_dev.h b/drivers/net/enic/vnic_dev.h
index 4980615..3a29681 100644
--- a/drivers/net/enic/vnic_dev.h
+++ b/drivers/net/enic/vnic_dev.h
@@ -101,7 +101,7 @@ int vnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, unsigned int size,
 int vnic_dev_stats_clear(struct vnic_dev *vdev);
 int vnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats);
 int vnic_dev_hang_notify(struct vnic_dev *vdev);
-void vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast,
+int vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast,
 	int broadcast, int promisc, int allmulti);
 int vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr);
 int vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr);
@@ -110,14 +110,15 @@ int vnic_dev_raise_intr(struct vnic_dev *vdev, u16 intr);
 int vnic_dev_notify_setcmd(struct vnic_dev *vdev,
 	void *notify_addr, dma_addr_t notify_pa, u16 intr);
 int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr);
-void vnic_dev_notify_unsetcmd(struct vnic_dev *vdev);
-void vnic_dev_notify_unset(struct vnic_dev *vdev);
+int vnic_dev_notify_unsetcmd(struct vnic_dev *vdev);
+int vnic_dev_notify_unset(struct vnic_dev *vdev);
 int vnic_dev_link_status(struct vnic_dev *vdev);
 u32 vnic_dev_port_speed(struct vnic_dev *vdev);
 u32 vnic_dev_msg_lvl(struct vnic_dev *vdev);
 u32 vnic_dev_mtu(struct vnic_dev *vdev);
 u32 vnic_dev_link_down_cnt(struct vnic_dev *vdev);
 u32 vnic_dev_notify_status(struct vnic_dev *vdev);
+u32 vnic_dev_uif(struct vnic_dev *vdev);
 int vnic_dev_close(struct vnic_dev *vdev);
 int vnic_dev_enable(struct vnic_dev *vdev);
 int vnic_dev_disable(struct vnic_dev *vdev);

[net-next-2.6 PATCH 05/10] enic: Use (netdev|dev|pr)_<level> macro helpers for logging

[Vasanthy Kolluri]

From: Vasanthy Kolluri <vkolluri@cisco.com>

Replace all printk routines with the (netdev|dev|pr)_<level> macros that
provide verbose logs.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
---
 drivers/net/enic/enic.h      |    6 ++
 drivers/net/enic/enic_main.c |  125 ++++++++++++++++++------------------------
 drivers/net/enic/enic_res.c  |   27 +++++----
 drivers/net/enic/vnic_cq.c   |    2 -
 drivers/net/enic/vnic_dev.c  |   29 ++++------
 drivers/net/enic/vnic_dev.h  |    3 +
 drivers/net/enic/vnic_intr.c |    3 -
 drivers/net/enic/vnic_rq.c   |    6 +-
 drivers/net/enic/vnic_wq.c   |    6 +-
 9 files changed, 98 insertions(+), 109 deletions(-)

diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index 81c2ade..3588ef5 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -34,7 +34,6 @@
 #define DRV_DESCRIPTION		"Cisco VIC Ethernet NIC Driver"
 #define DRV_VERSION		"1.4.1.1"
 #define DRV_COPYRIGHT		"Copyright 2008-2009 Cisco Systems, Inc"
-#define PFX			DRV_NAME ": "
 
 #define ENIC_BARS_MAX		6
 
@@ -130,4 +129,9 @@ struct enic {
 	unsigned int cq_count;
 };
 
+static inline struct device *enic_get_dev(struct enic *enic)
+{
+	return &(enic->pdev->dev);
+}
+
 #endif /* _ENIC_H_ */
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 9e05805..413e362 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -418,15 +418,15 @@ static void enic_log_q_error(struct enic *enic)
 	for (i = 0; i < enic->wq_count; i++) {
 		error_status = vnic_wq_error_status(&enic->wq[i]);
 		if (error_status)
-			printk(KERN_ERR PFX "%s: WQ[%d] error_status %d\n",
-				enic->netdev->name, i, error_status);
+			netdev_err(enic->netdev, "WQ[%d] error_status %d\n",
+				i, error_status);
 	}
 
 	for (i = 0; i < enic->rq_count; i++) {
 		error_status = vnic_rq_error_status(&enic->rq[i]);
 		if (error_status)
-			printk(KERN_ERR PFX "%s: RQ[%d] error_status %d\n",
-				enic->netdev->name, i, error_status);
+			netdev_err(enic->netdev, "RQ[%d] error_status %d\n",
+				i, error_status);
 	}
 }
 
@@ -435,8 +435,8 @@ static void enic_msglvl_check(struct enic *enic)
 	u32 msg_enable = vnic_dev_msg_lvl(enic->vdev);
 
 	if (msg_enable != enic->msg_enable) {
-		printk(KERN_INFO PFX "%s: msg lvl changed from 0x%x to 0x%x\n",
-			enic->netdev->name, enic->msg_enable, msg_enable);
+		netdev_info(enic->netdev, "msg lvl changed from 0x%x to 0x%x\n",
+			enic->msg_enable, msg_enable);
 		enic->msg_enable = msg_enable;
 	}
 }
@@ -444,14 +444,15 @@ static void enic_msglvl_check(struct enic *enic)
 static void enic_mtu_check(struct enic *enic)
 {
 	u32 mtu = vnic_dev_mtu(enic->vdev);
+	struct net_device *netdev = enic->netdev;
 
 	if (mtu && mtu != enic->port_mtu) {
 		enic->port_mtu = mtu;
-		if (mtu < enic->netdev->mtu)
-			printk(KERN_WARNING PFX
-				"%s: interface MTU (%d) set higher "
+		if (mtu < netdev->mtu)
+			netdev_warn(netdev,
+				"interface MTU (%d) set higher "
 				"than switch port MTU (%d)\n",
-				enic->netdev->name, enic->netdev->mtu, mtu);
+				netdev->mtu, mtu);
 	}
 }
 
@@ -461,10 +462,10 @@ static void enic_link_check(struct enic *enic)
 	int carrier_ok = netif_carrier_ok(enic->netdev);
 
 	if (link_status && !carrier_ok) {
-		printk(KERN_INFO PFX "%s: Link UP\n", enic->netdev->name);
+		netdev_info(enic->netdev, "Link UP\n");
 		netif_carrier_on(enic->netdev);
 	} else if (!link_status && carrier_ok) {
-		printk(KERN_INFO PFX "%s: Link DOWN\n", enic->netdev->name);
+		netdev_info(enic->netdev, "Link DOWN\n");
 		netif_carrier_off(enic->netdev);
 	}
 }
@@ -788,8 +789,7 @@ static netdev_tx_t enic_hard_start_xmit(struct sk_buff *skb,
 	    skb_shinfo(skb)->nr_frags + ENIC_DESC_MAX_SPLITS) {
 		netif_stop_queue(netdev);
 		/* This is a hard error, log it */
-		printk(KERN_ERR PFX "%s: BUG! Tx ring full when "
-			"queue awake!\n", netdev->name);
+		netdev_err(netdev, "BUG! Tx ring full when queue awake!\n");
 		spin_unlock_irqrestore(&enic->wq_lock[0], flags);
 		return NETDEV_TX_BUSY;
 	}
@@ -1738,16 +1738,14 @@ static int enic_open(struct net_device *netdev)
 
 	err = enic_request_intr(enic);
 	if (err) {
-		printk(KERN_ERR PFX "%s: Unable to request irq.\n",
-			netdev->name);
+		netdev_err(netdev, "Unable to request irq.\n");
 		return err;
 	}
 
 	err = enic_dev_notify_set(enic);
 	if (err) {
-		printk(KERN_ERR PFX
-			"%s: Failed to alloc notify buffer, aborting.\n",
-			netdev->name);
+		netdev_err(netdev,
+			"Failed to alloc notify buffer, aborting.\n");
 		goto err_out_free_intr;
 	}
 
@@ -1755,9 +1753,7 @@ static int enic_open(struct net_device *netdev)
 		vnic_rq_fill(&enic->rq[i], enic->rq_alloc_buf);
 		/* Need at least one buffer on ring to get going */
 		if (vnic_rq_desc_used(&enic->rq[i]) == 0) {
-			printk(KERN_ERR PFX
-				"%s: Unable to alloc receive buffers.\n",
-				netdev->name);
+			netdev_err(netdev, "Unable to alloc receive buffers\n");
 			err = -ENOMEM;
 			goto err_out_notify_unset;
 		}
@@ -1851,10 +1847,9 @@ static int enic_change_mtu(struct net_device *netdev, int new_mtu)
 	netdev->mtu = new_mtu;
 
 	if (netdev->mtu > enic->port_mtu)
-		printk(KERN_WARNING PFX
-			"%s: interface MTU (%d) set higher "
-			"than port MTU (%d)\n",
-			netdev->name, netdev->mtu, enic->port_mtu);
+		netdev_warn(netdev,
+			"interface MTU (%d) set higher than port MTU (%d)\n",
+			netdev->mtu, enic->port_mtu);
 
 	if (running)
 		enic_open(netdev);
@@ -1927,8 +1922,8 @@ static int enic_dev_open(struct enic *enic)
 	err = enic_dev_wait(enic->vdev, vnic_dev_open,
 		vnic_dev_open_done, 0);
 	if (err)
-		printk(KERN_ERR PFX
-			"vNIC device open failed, err %d.\n", err);
+		dev_err(enic_get_dev(enic), "vNIC device open failed, err %d\n",
+			err);
 
 	return err;
 }
@@ -1940,8 +1935,8 @@ static int enic_dev_hang_reset(struct enic *enic)
 	err = enic_dev_wait(enic->vdev, vnic_dev_hang_reset,
 		vnic_dev_hang_reset_done, 0);
 	if (err)
-		printk(KERN_ERR PFX
-			"vNIC hang reset failed, err %d.\n", err);
+		netdev_err(enic->netdev, "vNIC hang reset failed, err %d\n",
+			err);
 
 	return err;
 }
@@ -2177,6 +2172,7 @@ static int enic_dev_stats_clear(struct enic *enic)
 
 int enic_dev_init(struct enic *enic)
 {
+	struct device *dev = enic_get_dev(enic);
 	struct net_device *netdev = enic->netdev;
 	int err;
 
@@ -2185,8 +2181,7 @@ int enic_dev_init(struct enic *enic)
 
 	err = enic_get_vnic_config(enic);
 	if (err) {
-		printk(KERN_ERR PFX
-			"Get vNIC configuration failed, aborting.\n");
+		dev_err(dev, "Get vNIC configuration failed, aborting\n");
 		return err;
 	}
 
@@ -2201,9 +2196,8 @@ int enic_dev_init(struct enic *enic)
 
 	err = enic_set_intr_mode(enic);
 	if (err) {
-		printk(KERN_ERR PFX
-			"Failed to set intr mode based on resource "
-			"counts and system capabilities, aborting.\n");
+		dev_err(dev, "Failed to set intr mode based on resource "
+			"counts and system capabilities, aborting\n");
 		return err;
 	}
 
@@ -2212,8 +2206,7 @@ int enic_dev_init(struct enic *enic)
 
 	err = enic_alloc_vnic_resources(enic);
 	if (err) {
-		printk(KERN_ERR PFX
-			"Failed to alloc vNIC resources, aborting.\n");
+		dev_err(dev, "Failed to alloc vNIC resources, aborting\n");
 		goto err_out_free_vnic_resources;
 	}
 
@@ -2225,21 +2218,19 @@ int enic_dev_init(struct enic *enic)
 
 	err = enic_set_rq_alloc_buf(enic);
 	if (err) {
-		printk(KERN_ERR PFX
-			"Failed to set RQ buffer allocator, aborting.\n");
+		dev_err(dev, "Failed to set RQ buffer allocator, aborting\n");
 		goto err_out_free_vnic_resources;
 	}
 
 	err = enic_set_niccfg(enic);
 	if (err) {
-		printk(KERN_ERR PFX
-			"Failed to config nic, aborting.\n");
+		dev_err(dev, "Failed to config nic, aborting\n");
 		goto err_out_free_vnic_resources;
 	}
 
 	err = enic_dev_set_ig_vlan_rewrite_mode(enic);
 	if (err) {
-		printk(KERN_ERR PFX
+		netdev_err(netdev,
 			"Failed to set ingress vlan rewrite mode, aborting.\n");
 		goto err_out_free_vnic_resources;
 	}
@@ -2274,6 +2265,7 @@ static void enic_iounmap(struct enic *enic)
 static int __devinit enic_probe(struct pci_dev *pdev,
 	const struct pci_device_id *ent)
 {
+	struct device *dev = &pdev->dev;
 	struct net_device *netdev;
 	struct enic *enic;
 	int using_dac = 0;
@@ -2286,7 +2278,7 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 
 	netdev = alloc_etherdev(sizeof(struct enic));
 	if (!netdev) {
-		printk(KERN_ERR PFX "Etherdev alloc failed, aborting.\n");
+		pr_err("Etherdev alloc failed, aborting\n");
 		return -ENOMEM;
 	}
 
@@ -2303,15 +2295,13 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 
 	err = pci_enable_device(pdev);
 	if (err) {
-		printk(KERN_ERR PFX
-			"Cannot enable PCI device, aborting.\n");
+		dev_err(dev, "Cannot enable PCI device, aborting\n");
 		goto err_out_free_netdev;
 	}
 
 	err = pci_request_regions(pdev, DRV_NAME);
 	if (err) {
-		printk(KERN_ERR PFX
-			"Cannot request PCI regions, aborting.\n");
+		dev_err(dev, "Cannot request PCI regions, aborting\n");
 		goto err_out_disable_device;
 	}
 
@@ -2326,23 +2316,20 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 	if (err) {
 		err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 		if (err) {
-			printk(KERN_ERR PFX
-				"No usable DMA configuration, aborting.\n");
+			dev_err(dev, "No usable DMA configuration, aborting\n");
 			goto err_out_release_regions;
 		}
 		err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
 		if (err) {
-			printk(KERN_ERR PFX
-				"Unable to obtain 32-bit DMA "
-				"for consistent allocations, aborting.\n");
+			dev_err(dev, "Unable to obtain %u-bit DMA "
+				"for consistent allocations, aborting\n", 32);
 			goto err_out_release_regions;
 		}
 	} else {
 		err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40));
 		if (err) {
-			printk(KERN_ERR PFX
-				"Unable to obtain 40-bit DMA "
-				"for consistent allocations, aborting.\n");
+			dev_err(dev, "Unable to obtain %u-bit DMA "
+				"for consistent allocations, aborting\n", 40);
 			goto err_out_release_regions;
 		}
 		using_dac = 1;
@@ -2357,8 +2344,7 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 		enic->bar[i].len = pci_resource_len(pdev, i);
 		enic->bar[i].vaddr = pci_iomap(pdev, i, enic->bar[i].len);
 		if (!enic->bar[i].vaddr) {
-			printk(KERN_ERR PFX
-				"Cannot memory-map BAR %d, aborting.\n", i);
+			dev_err(dev, "Cannot memory-map BAR %d, aborting\n", i);
 			err = -ENODEV;
 			goto err_out_iounmap;
 		}
@@ -2371,8 +2357,7 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 	enic->vdev = vnic_dev_register(NULL, enic, pdev, enic->bar,
 		ARRAY_SIZE(enic->bar));
 	if (!enic->vdev) {
-		printk(KERN_ERR PFX
-			"vNIC registration failed, aborting.\n");
+		dev_err(dev, "vNIC registration failed, aborting\n");
 		err = -ENODEV;
 		goto err_out_iounmap;
 	}
@@ -2382,8 +2367,7 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 
 	err = enic_dev_open(enic);
 	if (err) {
-		printk(KERN_ERR PFX
-			"vNIC dev open failed, aborting.\n");
+		dev_err(dev, "vNIC dev open failed, aborting\n");
 		goto err_out_vnic_unregister;
 	}
 
@@ -2397,11 +2381,15 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 
 	netif_carrier_off(netdev);
 
+	/* Do not call dev_init for a dynamic vnic.
+	 * For a dynamic vnic, init_prov_info will be
+	 * called later by an upper layer.
+	 */
+
 	if (!enic_is_dynamic(enic)) {
 		err = vnic_dev_init(enic->vdev, 0);
 		if (err) {
-			printk(KERN_ERR PFX
-				"vNIC dev init failed, aborting.\n");
+			dev_err(dev, "vNIC dev init failed, aborting\n");
 			goto err_out_dev_close;
 		}
 	}
@@ -2413,8 +2401,7 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 
 	err = enic_dev_init(enic);
 	if (err) {
-		printk(KERN_ERR PFX
-			"Device initialization failed, aborting.\n");
+		dev_err(dev, "Device initialization failed, aborting\n");
 		goto err_out_dev_close;
 	}
 
@@ -2438,8 +2425,7 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 
 	err = enic_set_mac_addr(netdev, enic->mac_addr);
 	if (err) {
-		printk(KERN_ERR PFX
-			"Invalid MAC address, aborting.\n");
+		dev_err(dev, "Invalid MAC address, aborting\n");
 		goto err_out_dev_deinit;
 	}
 
@@ -2469,8 +2455,7 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 
 	err = register_netdev(netdev);
 	if (err) {
-		printk(KERN_ERR PFX
-			"Cannot register net device, aborting.\n");
+		dev_err(dev, "Cannot register net device, aborting\n");
 		goto err_out_dev_deinit;
 	}
 
@@ -2524,7 +2509,7 @@ static struct pci_driver enic_driver = {
 
 static int __init enic_init_module(void)
 {
-	printk(KERN_INFO PFX "%s, ver %s\n", DRV_DESCRIPTION, DRV_VERSION);
+	pr_info("%s, ver %s\n", DRV_DESCRIPTION, DRV_VERSION);
 
 	return pci_register_driver(&enic_driver);
 }
diff --git a/drivers/net/enic/enic_res.c b/drivers/net/enic/enic_res.c
index 04cfc4e..478928b 100644
--- a/drivers/net/enic/enic_res.c
+++ b/drivers/net/enic/enic_res.c
@@ -46,7 +46,8 @@ int enic_get_vnic_config(struct enic *enic)
 
 	err = vnic_dev_mac_addr(enic->vdev, enic->mac_addr);
 	if (err) {
-		printk(KERN_ERR PFX "Error getting MAC addr, %d\n", err);
+		dev_err(enic_get_dev(enic),
+			"Error getting MAC addr, %d\n", err);
 		return err;
 	}
 
@@ -56,7 +57,7 @@ int enic_get_vnic_config(struct enic *enic)
 			offsetof(struct vnic_enet_config, m), \
 			sizeof(c->m), &c->m); \
 		if (err) { \
-			printk(KERN_ERR PFX \
+			dev_err(enic_get_dev(enic), \
 				"Error getting %s, %d\n", #m, err); \
 			return err; \
 		} \
@@ -92,10 +93,10 @@ int enic_get_vnic_config(struct enic *enic)
 		INTR_COALESCE_HW_TO_USEC(VNIC_INTR_TIMER_MAX),
 		c->intr_timer_usec);
 
-	printk(KERN_INFO PFX "vNIC MAC addr %pM wq/rq %d/%d\n",
+	dev_info(enic_get_dev(enic), "vNIC MAC addr %pM wq/rq %d/%d\n",
 		enic->mac_addr, c->wq_desc_count, c->rq_desc_count);
-	printk(KERN_INFO PFX "vNIC mtu %d csum tx/rx %d/%d tso/lro %d/%d "
-		"intr timer %d usec\n",
+	dev_info(enic_get_dev(enic), "vNIC mtu %d csum tx/rx %d/%d "
+		"tso/lro %d/%d intr timer %d usec\n",
 		c->mtu, ENIC_SETTING(enic, TXCSUM),
 		ENIC_SETTING(enic, RXCSUM), ENIC_SETTING(enic, TSO),
 		ENIC_SETTING(enic, LRO), c->intr_timer_usec);
@@ -111,7 +112,7 @@ int enic_add_vlan(struct enic *enic, u16 vlanid)
 
 	err = vnic_dev_cmd(enic->vdev, CMD_VLAN_ADD, &a0, &a1, wait);
 	if (err)
-		printk(KERN_ERR PFX "Can't add vlan id, %d\n", err);
+		dev_err(enic_get_dev(enic), "Can't add vlan id, %d\n", err);
 
 	return err;
 }
@@ -124,7 +125,7 @@ int enic_del_vlan(struct enic *enic, u16 vlanid)
 
 	err = vnic_dev_cmd(enic->vdev, CMD_VLAN_DEL, &a0, &a1, wait);
 	if (err)
-		printk(KERN_ERR PFX "Can't delete vlan id, %d\n", err);
+		dev_err(enic_get_dev(enic), "Can't delete vlan id, %d\n", err);
 
 	return err;
 }
@@ -192,8 +193,8 @@ void enic_get_res_counts(struct enic *enic)
 		vnic_dev_get_res_count(enic->vdev, RES_TYPE_INTR_CTRL),
 		ENIC_INTR_MAX);
 
-	printk(KERN_INFO PFX "vNIC resources avail: "
-		"wq %d rq %d cq %d intr %d\n",
+	dev_info(enic_get_dev(enic),
+		"vNIC resources avail: wq %d rq %d cq %d intr %d\n",
 		enic->wq_count, enic->rq_count,
 		enic->cq_count, enic->intr_count);
 }
@@ -308,15 +309,14 @@ int enic_alloc_vnic_resources(struct enic *enic)
 
 	intr_mode = vnic_dev_get_intr_mode(enic->vdev);
 
-	printk(KERN_INFO PFX "vNIC resources used:  "
+	dev_info(enic_get_dev(enic), "vNIC resources used:  "
 		"wq %d rq %d cq %d intr %d intr mode %s\n",
 		enic->wq_count, enic->rq_count,
 		enic->cq_count, enic->intr_count,
 		intr_mode == VNIC_DEV_INTR_MODE_INTX ? "legacy PCI INTx" :
 		intr_mode == VNIC_DEV_INTR_MODE_MSI ? "MSI" :
 		intr_mode == VNIC_DEV_INTR_MODE_MSIX ? "MSI-X" :
-		"unknown"
-		);
+		"unknown");
 
 	/* Allocate queue resources
 	 */
@@ -362,7 +362,8 @@ int enic_alloc_vnic_resources(struct enic *enic)
 	enic->legacy_pba = vnic_dev_get_res(enic->vdev,
 		RES_TYPE_INTR_PBA_LEGACY, 0);
 	if (!enic->legacy_pba && intr_mode == VNIC_DEV_INTR_MODE_INTX) {
-		printk(KERN_ERR PFX "Failed to hook legacy pba resource\n");
+		dev_err(enic_get_dev(enic),
+			"Failed to hook legacy pba resource\n");
 		err = -ENODEV;
 		goto err_out_cleanup;
 	}
diff --git a/drivers/net/enic/vnic_cq.c b/drivers/net/enic/vnic_cq.c
index 020ae6c..326ea40 100644
--- a/drivers/net/enic/vnic_cq.c
+++ b/drivers/net/enic/vnic_cq.c
@@ -42,7 +42,7 @@ int vnic_cq_alloc(struct vnic_dev *vdev, struct vnic_cq *cq, unsigned int index,
 
 	cq->ctrl = vnic_dev_get_res(vdev, RES_TYPE_CQ, index);
 	if (!cq->ctrl) {
-		printk(KERN_ERR "Failed to hook CQ[%d] resource\n", index);
+		pr_err("Failed to hook CQ[%d] resource\n", index);
 		return -EINVAL;
 	}
 
diff --git a/drivers/net/enic/vnic_dev.c b/drivers/net/enic/vnic_dev.c
index bebadb3..042f4b8 100644
--- a/drivers/net/enic/vnic_dev.c
+++ b/drivers/net/enic/vnic_dev.c
@@ -78,19 +78,19 @@ static int vnic_dev_discover_res(struct vnic_dev *vdev,
 		return -EINVAL;
 
 	if (bar->len < VNIC_MAX_RES_HDR_SIZE) {
-		printk(KERN_ERR "vNIC BAR0 res hdr length error\n");
+		pr_err("vNIC BAR0 res hdr length error\n");
 		return -EINVAL;
 	}
 
 	rh = bar->vaddr;
 	if (!rh) {
-		printk(KERN_ERR "vNIC BAR0 res hdr not mem-mapped\n");
+		pr_err("vNIC BAR0 res hdr not mem-mapped\n");
 		return -EINVAL;
 	}
 
 	if (ioread32(&rh->magic) != VNIC_RES_MAGIC ||
 	    ioread32(&rh->version) != VNIC_RES_VERSION) {
-		printk(KERN_ERR "vNIC BAR0 res magic/version error "
+		pr_err("vNIC BAR0 res magic/version error "
 			"exp (%lx/%lx) curr (%x/%x)\n",
 			VNIC_RES_MAGIC, VNIC_RES_VERSION,
 			ioread32(&rh->magic), ioread32(&rh->version));
@@ -122,7 +122,7 @@ static int vnic_dev_discover_res(struct vnic_dev *vdev,
 			/* each count is stride bytes long */
 			len = count * VNIC_RES_STRIDE;
 			if (len + bar_offset > bar[bar_num].len) {
-				printk(KERN_ERR "vNIC BAR0 resource %d "
+				pr_err("vNIC BAR0 resource %d "
 					"out-of-bounds, offset 0x%x + "
 					"size 0x%x > bar len 0x%lx\n",
 					type, bar_offset,
@@ -229,8 +229,7 @@ int vnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring,
 		&ring->base_addr_unaligned);
 
 	if (!ring->descs_unaligned) {
-		printk(KERN_ERR
-		  "Failed to allocate ring (size=%d), aborting\n",
+		pr_err("Failed to allocate ring (size=%d), aborting\n",
 			(int)ring->size);
 		return -ENOMEM;
 	}
@@ -268,7 +267,7 @@ int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
 
 	status = ioread32(&devcmd->status);
 	if (status & STAT_BUSY) {
-		printk(KERN_ERR "Busy devcmd %d\n", _CMD_N(cmd));
+		pr_err("Busy devcmd %d\n", _CMD_N(cmd));
 		return -EBUSY;
 	}
 
@@ -294,7 +293,7 @@ int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
 				err = (int)readq(&devcmd->args[0]);
 				if (err != ERR_ECMDUNKNOWN ||
 				    cmd != CMD_CAPABILITY)
-					printk(KERN_ERR "Error %d devcmd %d\n",
+					pr_err("Error %d devcmd %d\n",
 						err, _CMD_N(cmd));
 				return err;
 			}
@@ -309,7 +308,7 @@ int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
 		}
 	}
 
-	printk(KERN_ERR "Timedout devcmd %d\n", _CMD_N(cmd));
+	pr_err("Timedout devcmd %d\n", _CMD_N(cmd));
 	return -ETIMEDOUT;
 }
 
@@ -565,7 +564,7 @@ int vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast,
 
 	err = vnic_dev_cmd(vdev, CMD_PACKET_FILTER, &a0, &a1, wait);
 	if (err)
-		printk(KERN_ERR "Can't set packet filter\n");
+		pr_err("Can't set packet filter\n");
 
 	return err;
 }
@@ -582,7 +581,7 @@ int vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr)
 
 	err = vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait);
 	if (err)
-		printk(KERN_ERR "Can't add addr [%pM], %d\n", addr, err);
+		pr_err("Can't add addr [%pM], %d\n", addr, err);
 
 	return err;
 }
@@ -599,7 +598,7 @@ int vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr)
 
 	err = vnic_dev_cmd(vdev, CMD_ADDR_DEL, &a0, &a1, wait);
 	if (err)
-		printk(KERN_ERR "Can't del addr [%pM], %d\n", addr, err);
+		pr_err("Can't del addr [%pM], %d\n", addr, err);
 
 	return err;
 }
@@ -626,8 +625,7 @@ int vnic_dev_raise_intr(struct vnic_dev *vdev, u16 intr)
 
 	err = vnic_dev_cmd(vdev, CMD_IAR, &a0, &a1, wait);
 	if (err)
-		printk(KERN_ERR "Failed to raise INTR[%d], err %d\n",
-			intr, err);
+		pr_err("Failed to raise INTR[%d], err %d\n", intr, err);
 
 	return err;
 }
@@ -658,8 +656,7 @@ int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr)
 	dma_addr_t notify_pa;
 
 	if (vdev->notify || vdev->notify_pa) {
-		printk(KERN_ERR "notify block %p still allocated",
-			vdev->notify);
+		pr_err("notify block %p still allocated", vdev->notify);
 		return -EINVAL;
 	}
 
diff --git a/drivers/net/enic/vnic_dev.h b/drivers/net/enic/vnic_dev.h
index 3a29681..11659c6 100644
--- a/drivers/net/enic/vnic_dev.h
+++ b/drivers/net/enic/vnic_dev.h
@@ -41,6 +41,9 @@ static inline void writeq(u64 val, void __iomem *reg)
 }
 #endif
 
+#undef pr_fmt
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 enum vnic_dev_hw_version {
 	VNIC_DEV_HW_VER_UNKNOWN,
 	VNIC_DEV_HW_VER_A1,
diff --git a/drivers/net/enic/vnic_intr.c b/drivers/net/enic/vnic_intr.c
index 3934309..416eae7 100644
--- a/drivers/net/enic/vnic_intr.c
+++ b/drivers/net/enic/vnic_intr.c
@@ -39,8 +39,7 @@ int vnic_intr_alloc(struct vnic_dev *vdev, struct vnic_intr *intr,
 
 	intr->ctrl = vnic_dev_get_res(vdev, RES_TYPE_INTR_CTRL, index);
 	if (!intr->ctrl) {
-		printk(KERN_ERR "Failed to hook INTR[%d].ctrl resource\n",
-			index);
+		pr_err("Failed to hook INTR[%d].ctrl resource\n", index);
 		return -EINVAL;
 	}
 
diff --git a/drivers/net/enic/vnic_rq.c b/drivers/net/enic/vnic_rq.c
index cc580cf..6d84ca8 100644
--- a/drivers/net/enic/vnic_rq.c
+++ b/drivers/net/enic/vnic_rq.c
@@ -39,7 +39,7 @@ static int vnic_rq_alloc_bufs(struct vnic_rq *rq)
 	for (i = 0; i < blks; i++) {
 		rq->bufs[i] = kzalloc(VNIC_RQ_BUF_BLK_SZ, GFP_ATOMIC);
 		if (!rq->bufs[i]) {
-			printk(KERN_ERR "Failed to alloc rq_bufs\n");
+			pr_err("Failed to alloc rq_bufs\n");
 			return -ENOMEM;
 		}
 	}
@@ -94,7 +94,7 @@ int vnic_rq_alloc(struct vnic_dev *vdev, struct vnic_rq *rq, unsigned int index,
 
 	rq->ctrl = vnic_dev_get_res(vdev, RES_TYPE_RQ, index);
 	if (!rq->ctrl) {
-		printk(KERN_ERR "Failed to hook RQ[%d] resource\n", index);
+		pr_err("Failed to hook RQ[%d] resource\n", index);
 		return -EINVAL;
 	}
 
@@ -174,7 +174,7 @@ int vnic_rq_disable(struct vnic_rq *rq)
 		udelay(10);
 	}
 
-	printk(KERN_ERR "Failed to disable RQ[%d]\n", rq->index);
+	pr_err("Failed to disable RQ[%d]\n", rq->index);
 
 	return -ETIMEDOUT;
 }
diff --git a/drivers/net/enic/vnic_wq.c b/drivers/net/enic/vnic_wq.c
index 1378afb..ed090a3 100644
--- a/drivers/net/enic/vnic_wq.c
+++ b/drivers/net/enic/vnic_wq.c
@@ -39,7 +39,7 @@ static int vnic_wq_alloc_bufs(struct vnic_wq *wq)
 	for (i = 0; i < blks; i++) {
 		wq->bufs[i] = kzalloc(VNIC_WQ_BUF_BLK_SZ, GFP_ATOMIC);
 		if (!wq->bufs[i]) {
-			printk(KERN_ERR "Failed to alloc wq_bufs\n");
+			pr_err("Failed to alloc wq_bufs\n");
 			return -ENOMEM;
 		}
 	}
@@ -94,7 +94,7 @@ int vnic_wq_alloc(struct vnic_dev *vdev, struct vnic_wq *wq, unsigned int index,
 
 	wq->ctrl = vnic_dev_get_res(vdev, RES_TYPE_WQ, index);
 	if (!wq->ctrl) {
-		printk(KERN_ERR "Failed to hook WQ[%d] resource\n", index);
+		pr_err("Failed to hook WQ[%d] resource\n", index);
 		return -EINVAL;
 	}
 
@@ -167,7 +167,7 @@ int vnic_wq_disable(struct vnic_wq *wq)
 		udelay(10);
 	}
 
-	printk(KERN_ERR "Failed to disable WQ[%d]\n", wq->index);
+	pr_err("Failed to disable WQ[%d]\n", wq->index);
 
 	return -ETIMEDOUT;
 }

[net-next-2.6 PATCH 06/10] enic: Add new firmware devcmds

[Vasanthy Kolluri]

From: Vasanthy Kolluri <vkolluri@cisco.com>

Add new firmware devcmds - CMD_PROXY_BY_BDF, CMD_PACKET_FILTER_ALL,
CMD_ENABLE_WAIT.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
---
 drivers/net/enic/vnic_dev.c    |  136 +++++++++++++++++++++++++++++++++++++---
 drivers/net/enic/vnic_dev.h    |    5 +
 drivers/net/enic/vnic_devcmd.h |   14 ++++
 3 files changed, 146 insertions(+), 9 deletions(-)

diff --git a/drivers/net/enic/vnic_dev.c b/drivers/net/enic/vnic_dev.c
index 042f4b8..180912f 100644
--- a/drivers/net/enic/vnic_dev.c
+++ b/drivers/net/enic/vnic_dev.c
@@ -30,6 +30,11 @@
 #include "vnic_dev.h"
 #include "vnic_stats.h"
 
+enum vnic_proxy_type {
+	PROXY_NONE,
+	PROXY_BY_BDF,
+};
+
 struct vnic_res {
 	void __iomem *vaddr;
 	dma_addr_t bus_addr;
@@ -55,6 +60,9 @@ struct vnic_dev {
 	struct vnic_devcmd_fw_info *fw_info;
 	dma_addr_t fw_info_pa;
 	u32 cap_flags;
+	enum vnic_proxy_type proxy;
+	u32 proxy_index;
+	u64 args[VNIC_DEVCMD_NARGS];
 };
 
 #define VNIC_MAX_RES_HDR_SIZE \
@@ -257,10 +265,11 @@ void vnic_dev_free_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring)
 	}
 }
 
-int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
-	u64 *a0, u64 *a1, int wait)
+static int _vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
+	int wait)
 {
 	struct vnic_devcmd __iomem *devcmd = vdev->devcmd;
+	unsigned int i;
 	int delay;
 	u32 status;
 	int err;
@@ -272,8 +281,8 @@ int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
 	}
 
 	if (_CMD_DIR(cmd) & _CMD_DIR_WRITE) {
-		writeq(*a0, &devcmd->args[0]);
-		writeq(*a1, &devcmd->args[1]);
+		for (i = 0; i < VNIC_DEVCMD_NARGS; i++)
+			writeq(vdev->args[i], &devcmd->args[i]);
 		wmb();
 	}
 
@@ -287,6 +296,7 @@ int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
 		udelay(100);
 
 		status = ioread32(&devcmd->status);
+
 		if (!(status & STAT_BUSY)) {
 
 			if (status & STAT_ERROR) {
@@ -300,8 +310,8 @@ int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
 
 			if (_CMD_DIR(cmd) & _CMD_DIR_READ) {
 				rmb();
-				*a0 = readq(&devcmd->args[0]);
-				*a1 = readq(&devcmd->args[1]);
+				for (i = 0; i < VNIC_DEVCMD_NARGS; i++)
+					vdev->args[i] = readq(&devcmd->args[i]);
 			}
 
 			return 0;
@@ -312,6 +322,80 @@ int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
 	return -ETIMEDOUT;
 }
 
+static int vnic_dev_cmd_proxy_by_bdf(struct vnic_dev *vdev,
+	enum vnic_devcmd_cmd cmd, u64 *a0, u64 *a1, int wait)
+{
+	u32 status;
+	int err;
+
+	memset(vdev->args, 0, sizeof(vdev->args));
+
+	vdev->args[0] = vdev->proxy_index; /* bdf */
+	vdev->args[1] = cmd;
+	vdev->args[2] = *a0;
+	vdev->args[3] = *a1;
+
+	err = _vnic_dev_cmd(vdev, CMD_PROXY_BY_BDF, wait);
+	if (err)
+		return err;
+
+	status = (u32)vdev->args[0];
+	if (status & STAT_ERROR) {
+		err = (int)vdev->args[1];
+		if (err != ERR_ECMDUNKNOWN ||
+		    cmd != CMD_CAPABILITY)
+			pr_err("Error %d proxy devcmd %d\n", err, _CMD_N(cmd));
+		return err;
+	}
+
+	*a0 = vdev->args[1];
+	*a1 = vdev->args[2];
+
+	return 0;
+}
+
+static int vnic_dev_cmd_no_proxy(struct vnic_dev *vdev,
+	enum vnic_devcmd_cmd cmd, u64 *a0, u64 *a1, int wait)
+{
+	int err;
+
+	vdev->args[0] = *a0;
+	vdev->args[1] = *a1;
+
+	err = _vnic_dev_cmd(vdev, cmd, wait);
+
+	*a0 = vdev->args[0];
+	*a1 = vdev->args[1];
+
+	return err;
+}
+
+void vnic_dev_cmd_proxy_by_bdf_start(struct vnic_dev *vdev, u16 bdf)
+{
+	vdev->proxy = PROXY_BY_BDF;
+	vdev->proxy_index = bdf;
+}
+
+void vnic_dev_cmd_proxy_end(struct vnic_dev *vdev)
+{
+	vdev->proxy = PROXY_NONE;
+	vdev->proxy_index = 0;
+}
+
+int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
+	u64 *a0, u64 *a1, int wait)
+{
+	memset(vdev->args, 0, sizeof(vdev->args));
+
+	switch (vdev->proxy) {
+	case PROXY_BY_BDF:
+		return vnic_dev_cmd_proxy_by_bdf(vdev, cmd, a0, a1, wait);
+	case PROXY_NONE:
+	default:
+		return vnic_dev_cmd_no_proxy(vdev, cmd, a0, a1, wait);
+	}
+}
+
 static int vnic_dev_capable(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd)
 {
 	u64 a0 = (u32)cmd, a1 = 0;
@@ -430,6 +514,19 @@ int vnic_dev_enable(struct vnic_dev *vdev)
 	return vnic_dev_cmd(vdev, CMD_ENABLE, &a0, &a1, wait);
 }
 
+int vnic_dev_enable_wait(struct vnic_dev *vdev)
+{
+	u64 a0 = 0, a1 = 0;
+	int wait = 1000;
+	int err;
+
+	err = vnic_dev_cmd(vdev, CMD_ENABLE_WAIT, &a0, &a1, wait);
+	if (err == ERR_ECMDUNKNOWN)
+		return vnic_dev_cmd(vdev, CMD_ENABLE, &a0, &a1, wait);
+
+	return err;
+}
+
 int vnic_dev_disable(struct vnic_dev *vdev)
 {
 	u64 a0 = 0, a1 = 0;
@@ -569,6 +666,26 @@ int vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast,
 	return err;
 }
 
+int vnic_dev_packet_filter_all(struct vnic_dev *vdev, int directed,
+	int multicast, int broadcast, int promisc, int allmulti)
+{
+	u64 a0, a1 = 0;
+	int wait = 1000;
+	int err;
+
+	a0 = (directed ? CMD_PFILTER_DIRECTED : 0) |
+	     (multicast ? CMD_PFILTER_MULTICAST : 0) |
+	     (broadcast ? CMD_PFILTER_BROADCAST : 0) |
+	     (promisc ? CMD_PFILTER_PROMISCUOUS : 0) |
+	     (allmulti ? CMD_PFILTER_ALL_MULTICAST : 0);
+
+	err = vnic_dev_cmd(vdev, CMD_PACKET_FILTER_ALL, &a0, &a1, wait);
+	if (err)
+		pr_err("Can't set packet filter\n");
+
+	return err;
+}
+
 int vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr)
 {
 	u64 a0 = 0, a1 = 0;
@@ -731,8 +848,9 @@ int vnic_dev_init(struct vnic_dev *vdev, int arg)
 	else {
 		vnic_dev_cmd(vdev, CMD_INIT_v1, &a0, &a1, wait);
 		if (a0 & CMD_INITF_DEFAULT_MAC) {
-			// Emulate these for old CMD_INIT_v1 which
-			// didn't pass a0 so no CMD_INITF_*.
+			/* Emulate these for old CMD_INIT_v1 which
+			 * didn't pass a0 so no CMD_INITF_*.
+			 */
 			vnic_dev_cmd(vdev, CMD_MAC_ADDR, &a0, &a1, wait);
 			vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait);
 		}
@@ -754,7 +872,7 @@ int vnic_dev_init_done(struct vnic_dev *vdev, int *done, int *err)
 
 	*done = (a0 == 0);
 
-	*err = (a0 == 0) ? a1 : 0;
+	*err = (a0 == 0) ? (int)a1:0;
 
 	return 0;
 }
diff --git a/drivers/net/enic/vnic_dev.h b/drivers/net/enic/vnic_dev.h
index 11659c6..cfdaa69 100644
--- a/drivers/net/enic/vnic_dev.h
+++ b/drivers/net/enic/vnic_dev.h
@@ -95,6 +95,8 @@ void vnic_dev_free_desc_ring(struct vnic_dev *vdev,
 	struct vnic_dev_ring *ring);
 int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
 	u64 *a0, u64 *a1, int wait);
+void vnic_dev_cmd_proxy_by_bdf_start(struct vnic_dev *vdev, u16 bdf);
+void vnic_dev_cmd_proxy_end(struct vnic_dev *vdev);
 int vnic_dev_fw_info(struct vnic_dev *vdev,
 	struct vnic_devcmd_fw_info **fw_info);
 int vnic_dev_hw_version(struct vnic_dev *vdev,
@@ -106,6 +108,8 @@ int vnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats);
 int vnic_dev_hang_notify(struct vnic_dev *vdev);
 int vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast,
 	int broadcast, int promisc, int allmulti);
+int vnic_dev_packet_filter_all(struct vnic_dev *vdev, int directed,
+	int multicast, int broadcast, int promisc, int allmulti);
 int vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr);
 int vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr);
 int vnic_dev_mac_addr(struct vnic_dev *vdev, u8 *mac_addr);
@@ -124,6 +128,7 @@ u32 vnic_dev_notify_status(struct vnic_dev *vdev);
 u32 vnic_dev_uif(struct vnic_dev *vdev);
 int vnic_dev_close(struct vnic_dev *vdev);
 int vnic_dev_enable(struct vnic_dev *vdev);
+int vnic_dev_enable_wait(struct vnic_dev *vdev);
 int vnic_dev_disable(struct vnic_dev *vdev);
 int vnic_dev_open(struct vnic_dev *vdev, int arg);
 int vnic_dev_open_done(struct vnic_dev *vdev, int *done);
diff --git a/drivers/net/enic/vnic_devcmd.h b/drivers/net/enic/vnic_devcmd.h
index 1c4fb35..e6c80c7 100644
--- a/drivers/net/enic/vnic_devcmd.h
+++ b/drivers/net/enic/vnic_devcmd.h
@@ -98,6 +98,9 @@ enum vnic_devcmd_cmd {
 	/* set Rx packet filter: (u32)a0=filters (see CMD_PFILTER_*) */
 	CMD_PACKET_FILTER	= _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 7),
 
+	/* set Rx packet filter for all: (u32)a0=filters (see CMD_PFILTER_*) */
+	CMD_PACKET_FILTER_ALL   = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 7),
+
 	/* hang detection notification */
 	CMD_HANG_NOTIFY         = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 8),
 
@@ -171,6 +174,9 @@ enum vnic_devcmd_cmd {
 	/* enable virtual link */
 	CMD_ENABLE		= _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 28),
 
+	/* enable virtual link, waiting variant. */
+	CMD_ENABLE_WAIT		= _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 28),
+
 	/* disable virtual link */
 	CMD_DISABLE		= _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 29),
 
@@ -224,6 +230,14 @@ enum vnic_devcmd_cmd {
 	 * in:  (u32)a0=new vlan rewrite mode
 	 * out: (u32)a0=old vlan rewrite mode */
 	CMD_IG_VLAN_REWRITE_MODE = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ENET, 41),
+
+	/*
+	 * in:  (u16)a0=bdf of target vnic
+	 *      (u32)a1=cmd to proxy
+	 *      a2-a15=args to cmd in a1
+	 * out: (u32)a0=status of proxied cmd
+	 *      a1-a15=out args of proxied cmd */
+	CMD_PROXY_BY_BDF =	_CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 42),
 };
 
 /* flags for CMD_OPEN */

[net-next-2.6 PATCH 07/10] enic: Use receive queue buffer blocks of 32/64 entries

[Vasanthy Kolluri]

From: Vasanthy Kolluri <vkolluri@cisco.com>

Change the receive queue buffer allocations into blocks of 32 entries when
ring size is less than 64, otherwise use 64 entries per block.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
---
 drivers/net/enic/vnic_rq.c |   20 +++++++++++---------
 drivers/net/enic/vnic_rq.h |   14 +++++++++-----
 drivers/net/enic/vnic_wq.c |   15 ++++++++-------
 drivers/net/enic/vnic_wq.h |   14 +++++++++-----
 4 files changed, 37 insertions(+), 26 deletions(-)

diff --git a/drivers/net/enic/vnic_rq.c b/drivers/net/enic/vnic_rq.c
index 6d84ca8..45cfc79 100644
--- a/drivers/net/enic/vnic_rq.c
+++ b/drivers/net/enic/vnic_rq.c
@@ -37,7 +37,7 @@ static int vnic_rq_alloc_bufs(struct vnic_rq *rq)
 	vdev = rq->vdev;
 
 	for (i = 0; i < blks; i++) {
-		rq->bufs[i] = kzalloc(VNIC_RQ_BUF_BLK_SZ, GFP_ATOMIC);
+		rq->bufs[i] = kzalloc(VNIC_RQ_BUF_BLK_SZ(count), GFP_ATOMIC);
 		if (!rq->bufs[i]) {
 			pr_err("Failed to alloc rq_bufs\n");
 			return -ENOMEM;
@@ -46,14 +46,14 @@ static int vnic_rq_alloc_bufs(struct vnic_rq *rq)
 
 	for (i = 0; i < blks; i++) {
 		buf = rq->bufs[i];
-		for (j = 0; j < VNIC_RQ_BUF_BLK_ENTRIES; j++) {
-			buf->index = i * VNIC_RQ_BUF_BLK_ENTRIES + j;
+		for (j = 0; j < VNIC_RQ_BUF_BLK_ENTRIES(count); j++) {
+			buf->index = i * VNIC_RQ_BUF_BLK_ENTRIES(count) + j;
 			buf->desc = (u8 *)rq->ring.descs +
 				rq->ring.desc_size * buf->index;
 			if (buf->index + 1 == count) {
 				buf->next = rq->bufs[0];
 				break;
-			} else if (j + 1 == VNIC_RQ_BUF_BLK_ENTRIES) {
+			} else if (j + 1 == VNIC_RQ_BUF_BLK_ENTRIES(count)) {
 				buf->next = rq->bufs[i + 1];
 			} else {
 				buf->next = buf + 1;
@@ -119,10 +119,11 @@ void vnic_rq_init_start(struct vnic_rq *rq, unsigned int cq_index,
 	unsigned int error_interrupt_offset)
 {
 	u64 paddr;
+	unsigned int count = rq->ring.desc_count;
 
 	paddr = (u64)rq->ring.base_addr | VNIC_PADDR_TARGET;
 	writeq(paddr, &rq->ctrl->ring_base);
-	iowrite32(rq->ring.desc_count, &rq->ctrl->ring_size);
+	iowrite32(count, &rq->ctrl->ring_size);
 	iowrite32(cq_index, &rq->ctrl->cq_index);
 	iowrite32(error_interrupt_enable, &rq->ctrl->error_interrupt_enable);
 	iowrite32(error_interrupt_offset, &rq->ctrl->error_interrupt_offset);
@@ -132,8 +133,8 @@ void vnic_rq_init_start(struct vnic_rq *rq, unsigned int cq_index,
 	iowrite32(posted_index, &rq->ctrl->posted_index);
 
 	rq->to_use = rq->to_clean =
-		&rq->bufs[fetch_index / VNIC_RQ_BUF_BLK_ENTRIES]
-			[fetch_index % VNIC_RQ_BUF_BLK_ENTRIES];
+		&rq->bufs[fetch_index / VNIC_RQ_BUF_BLK_ENTRIES(count)]
+			[fetch_index % VNIC_RQ_BUF_BLK_ENTRIES(count)];
 }
 
 void vnic_rq_init(struct vnic_rq *rq, unsigned int cq_index,
@@ -184,6 +185,7 @@ void vnic_rq_clean(struct vnic_rq *rq,
 {
 	struct vnic_rq_buf *buf;
 	u32 fetch_index;
+	unsigned int count = rq->ring.desc_count;
 
 	BUG_ON(ioread32(&rq->ctrl->enable));
 
@@ -200,8 +202,8 @@ void vnic_rq_clean(struct vnic_rq *rq,
 	/* Use current fetch_index as the ring starting point */
 	fetch_index = ioread32(&rq->ctrl->fetch_index);
 	rq->to_use = rq->to_clean =
-		&rq->bufs[fetch_index / VNIC_RQ_BUF_BLK_ENTRIES]
-			[fetch_index % VNIC_RQ_BUF_BLK_ENTRIES];
+		&rq->bufs[fetch_index / VNIC_RQ_BUF_BLK_ENTRIES(count)]
+			[fetch_index % VNIC_RQ_BUF_BLK_ENTRIES(count)];
 	iowrite32(fetch_index, &rq->ctrl->posted_index);
 
 	vnic_dev_clear_desc_ring(&rq->ring);
diff --git a/drivers/net/enic/vnic_rq.h b/drivers/net/enic/vnic_rq.h
index 35e736c..8f0fb78 100644
--- a/drivers/net/enic/vnic_rq.h
+++ b/drivers/net/enic/vnic_rq.h
@@ -52,12 +52,16 @@ struct vnic_rq_ctrl {
 	u32 pad10;
 };
 
-/* Break the vnic_rq_buf allocations into blocks of 64 entries */
-#define VNIC_RQ_BUF_BLK_ENTRIES 64
-#define VNIC_RQ_BUF_BLK_SZ \
-	(VNIC_RQ_BUF_BLK_ENTRIES * sizeof(struct vnic_rq_buf))
+/* Break the vnic_rq_buf allocations into blocks of 32/64 entries */
+#define VNIC_RQ_BUF_MIN_BLK_ENTRIES 32
+#define VNIC_RQ_BUF_DFLT_BLK_ENTRIES 64
+#define VNIC_RQ_BUF_BLK_ENTRIES(entries) \
+	((unsigned int)((entries < VNIC_RQ_BUF_DFLT_BLK_ENTRIES) ? \
+	VNIC_RQ_BUF_MIN_BLK_ENTRIES : VNIC_RQ_BUF_DFLT_BLK_ENTRIES))
+#define VNIC_RQ_BUF_BLK_SZ(entries) \
+	(VNIC_RQ_BUF_BLK_ENTRIES(entries) * sizeof(struct vnic_rq_buf))
 #define VNIC_RQ_BUF_BLKS_NEEDED(entries) \
-	DIV_ROUND_UP(entries, VNIC_RQ_BUF_BLK_ENTRIES)
+	DIV_ROUND_UP(entries, VNIC_RQ_BUF_BLK_ENTRIES(entries))
 #define VNIC_RQ_BUF_BLKS_MAX VNIC_RQ_BUF_BLKS_NEEDED(4096)
 
 struct vnic_rq_buf {
diff --git a/drivers/net/enic/vnic_wq.c b/drivers/net/enic/vnic_wq.c
index ed090a3..6c4d4f7 100644
--- a/drivers/net/enic/vnic_wq.c
+++ b/drivers/net/enic/vnic_wq.c
@@ -37,7 +37,7 @@ static int vnic_wq_alloc_bufs(struct vnic_wq *wq)
 	vdev = wq->vdev;
 
 	for (i = 0; i < blks; i++) {
-		wq->bufs[i] = kzalloc(VNIC_WQ_BUF_BLK_SZ, GFP_ATOMIC);
+		wq->bufs[i] = kzalloc(VNIC_WQ_BUF_BLK_SZ(count), GFP_ATOMIC);
 		if (!wq->bufs[i]) {
 			pr_err("Failed to alloc wq_bufs\n");
 			return -ENOMEM;
@@ -46,14 +46,14 @@ static int vnic_wq_alloc_bufs(struct vnic_wq *wq)
 
 	for (i = 0; i < blks; i++) {
 		buf = wq->bufs[i];
-		for (j = 0; j < VNIC_WQ_BUF_BLK_ENTRIES; j++) {
-			buf->index = i * VNIC_WQ_BUF_BLK_ENTRIES + j;
+		for (j = 0; j < VNIC_WQ_BUF_BLK_ENTRIES(count); j++) {
+			buf->index = i * VNIC_WQ_BUF_BLK_ENTRIES(count) + j;
 			buf->desc = (u8 *)wq->ring.descs +
 				wq->ring.desc_size * buf->index;
 			if (buf->index + 1 == count) {
 				buf->next = wq->bufs[0];
 				break;
-			} else if (j + 1 == VNIC_WQ_BUF_BLK_ENTRIES) {
+			} else if (j + 1 == VNIC_WQ_BUF_BLK_ENTRIES(count)) {
 				buf->next = wq->bufs[i + 1];
 			} else {
 				buf->next = buf + 1;
@@ -119,10 +119,11 @@ void vnic_wq_init_start(struct vnic_wq *wq, unsigned int cq_index,
 	unsigned int error_interrupt_offset)
 {
 	u64 paddr;
+	unsigned int count = wq->ring.desc_count;
 
 	paddr = (u64)wq->ring.base_addr | VNIC_PADDR_TARGET;
 	writeq(paddr, &wq->ctrl->ring_base);
-	iowrite32(wq->ring.desc_count, &wq->ctrl->ring_size);
+	iowrite32(count, &wq->ctrl->ring_size);
 	iowrite32(fetch_index, &wq->ctrl->fetch_index);
 	iowrite32(posted_index, &wq->ctrl->posted_index);
 	iowrite32(cq_index, &wq->ctrl->cq_index);
@@ -131,8 +132,8 @@ void vnic_wq_init_start(struct vnic_wq *wq, unsigned int cq_index,
 	iowrite32(0, &wq->ctrl->error_status);
 
 	wq->to_use = wq->to_clean =
-		&wq->bufs[fetch_index / VNIC_WQ_BUF_BLK_ENTRIES]
-			[fetch_index % VNIC_WQ_BUF_BLK_ENTRIES];
+		&wq->bufs[fetch_index / VNIC_WQ_BUF_BLK_ENTRIES(count)]
+			[fetch_index % VNIC_WQ_BUF_BLK_ENTRIES(count)];
 }
 
 void vnic_wq_init(struct vnic_wq *wq, unsigned int cq_index,
diff --git a/drivers/net/enic/vnic_wq.h b/drivers/net/enic/vnic_wq.h
index 9c34d41..1c82139 100644
--- a/drivers/net/enic/vnic_wq.h
+++ b/drivers/net/enic/vnic_wq.h
@@ -60,12 +60,16 @@ struct vnic_wq_buf {
 	void *desc;
 };
 
-/* Break the vnic_wq_buf allocations into blocks of 64 entries */
-#define VNIC_WQ_BUF_BLK_ENTRIES 64
-#define VNIC_WQ_BUF_BLK_SZ \
-	(VNIC_WQ_BUF_BLK_ENTRIES * sizeof(struct vnic_wq_buf))
+/* Break the vnic_wq_buf allocations into blocks of 32/64 entries */
+#define VNIC_WQ_BUF_MIN_BLK_ENTRIES 32
+#define VNIC_WQ_BUF_DFLT_BLK_ENTRIES 64
+#define VNIC_WQ_BUF_BLK_ENTRIES(entries) \
+	((unsigned int)((entries < VNIC_WQ_BUF_DFLT_BLK_ENTRIES) ? \
+	VNIC_WQ_BUF_MIN_BLK_ENTRIES : VNIC_WQ_BUF_DFLT_BLK_ENTRIES))
+#define VNIC_WQ_BUF_BLK_SZ(entries) \
+	(VNIC_WQ_BUF_BLK_ENTRIES(entries) * sizeof(struct vnic_wq_buf))
 #define VNIC_WQ_BUF_BLKS_NEEDED(entries) \
-	DIV_ROUND_UP(entries, VNIC_WQ_BUF_BLK_ENTRIES)
+	DIV_ROUND_UP(entries, VNIC_WQ_BUF_BLK_ENTRIES(entries))
 #define VNIC_WQ_BUF_BLKS_MAX VNIC_WQ_BUF_BLKS_NEEDED(4096)
 
 struct vnic_wq {

[net-next-2.6 PATCH 08/10] enic: Feature Add: Add loopback capability to enic devices

[Vasanthy Kolluri]

From: Vasanthy Kolluri <vkolluri@cisco.com>

Hardware has the loopback capability to queue the packets transmitted from
a device to the receive queue of the same device. enic now supports the
loopback capability.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
---
 drivers/net/enic/enic.h      |    2 ++
 drivers/net/enic/enic_main.c |   42 +++++++++++++++++++++++++++---------------
 drivers/net/enic/enic_res.c  |    1 +
 drivers/net/enic/enic_res.h  |   25 +++++++++++++------------
 drivers/net/enic/vnic_enet.h |    2 ++
 5 files changed, 45 insertions(+), 27 deletions(-)

diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index 3588ef5..7280314 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -110,6 +110,8 @@ struct enic {
 	spinlock_t wq_lock[ENIC_WQ_MAX];
 	unsigned int wq_count;
 	struct vlan_group *vlan_group;
+	u16 loop_enable;
+	u16 loop_tag;
 
 	/* receive queue cache line section */
 	____cacheline_aligned struct vnic_rq rq[ENIC_RQ_MAX];
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 413e362..eda5530 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -594,7 +594,7 @@ static irqreturn_t enic_isr_msix_notify(int irq, void *data)
 
 static inline void enic_queue_wq_skb_cont(struct enic *enic,
 	struct vnic_wq *wq, struct sk_buff *skb,
-	unsigned int len_left)
+	unsigned int len_left, int loopback)
 {
 	skb_frag_t *frag;
 
@@ -606,13 +606,14 @@ static inline void enic_queue_wq_skb_cont(struct enic *enic,
 				frag->page_offset, frag->size,
 				PCI_DMA_TODEVICE),
 			frag->size,
-			(len_left == 0));	/* EOP? */
+			(len_left == 0),	/* EOP? */
+			loopback);
 	}
 }
 
 static inline void enic_queue_wq_skb_vlan(struct enic *enic,
 	struct vnic_wq *wq, struct sk_buff *skb,
-	int vlan_tag_insert, unsigned int vlan_tag)
+	int vlan_tag_insert, unsigned int vlan_tag, int loopback)
 {
 	unsigned int head_len = skb_headlen(skb);
 	unsigned int len_left = skb->len - head_len;
@@ -628,15 +629,15 @@ static inline void enic_queue_wq_skb_vlan(struct enic *enic,
 			head_len, PCI_DMA_TODEVICE),
 		head_len,
 		vlan_tag_insert, vlan_tag,
-		eop);
+		eop, loopback);
 
 	if (!eop)
-		enic_queue_wq_skb_cont(enic, wq, skb, len_left);
+		enic_queue_wq_skb_cont(enic, wq, skb, len_left, loopback);
 }
 
 static inline void enic_queue_wq_skb_csum_l4(struct enic *enic,
 	struct vnic_wq *wq, struct sk_buff *skb,
-	int vlan_tag_insert, unsigned int vlan_tag)
+	int vlan_tag_insert, unsigned int vlan_tag, int loopback)
 {
 	unsigned int head_len = skb_headlen(skb);
 	unsigned int len_left = skb->len - head_len;
@@ -656,15 +657,15 @@ static inline void enic_queue_wq_skb_csum_l4(struct enic *enic,
 		csum_offset,
 		hdr_len,
 		vlan_tag_insert, vlan_tag,
-		eop);
+		eop, loopback);
 
 	if (!eop)
-		enic_queue_wq_skb_cont(enic, wq, skb, len_left);
+		enic_queue_wq_skb_cont(enic, wq, skb, len_left, loopback);
 }
 
 static inline void enic_queue_wq_skb_tso(struct enic *enic,
 	struct vnic_wq *wq, struct sk_buff *skb, unsigned int mss,
-	int vlan_tag_insert, unsigned int vlan_tag)
+	int vlan_tag_insert, unsigned int vlan_tag, int loopback)
 {
 	unsigned int frag_len_left = skb_headlen(skb);
 	unsigned int len_left = skb->len - frag_len_left;
@@ -701,7 +702,7 @@ static inline void enic_queue_wq_skb_tso(struct enic *enic,
 			len,
 			mss, hdr_len,
 			vlan_tag_insert, vlan_tag,
-			eop && (len == frag_len_left));
+			eop && (len == frag_len_left), loopback);
 		frag_len_left -= len;
 		offset += len;
 	}
@@ -727,7 +728,8 @@ static inline void enic_queue_wq_skb_tso(struct enic *enic,
 				dma_addr,
 				len,
 				(len_left == 0) &&
-				(len == frag_len_left));	/* EOP? */
+				(len == frag_len_left),		/* EOP? */
+				loopback);
 			frag_len_left -= len;
 			offset += len;
 		}
@@ -740,22 +742,26 @@ static inline void enic_queue_wq_skb(struct enic *enic,
 	unsigned int mss = skb_shinfo(skb)->gso_size;
 	unsigned int vlan_tag = 0;
 	int vlan_tag_insert = 0;
+	int loopback = 0;
 
 	if (enic->vlan_group && vlan_tx_tag_present(skb)) {
 		/* VLAN tag from trunking driver */
 		vlan_tag_insert = 1;
 		vlan_tag = vlan_tx_tag_get(skb);
+	} else if (enic->loop_enable) {
+		vlan_tag = enic->loop_tag;
+		loopback = 1;
 	}
 
 	if (mss)
 		enic_queue_wq_skb_tso(enic, wq, skb, mss,
-			vlan_tag_insert, vlan_tag);
+			vlan_tag_insert, vlan_tag, loopback);
 	else if	(skb->ip_summed == CHECKSUM_PARTIAL)
 		enic_queue_wq_skb_csum_l4(enic, wq, skb,
-			vlan_tag_insert, vlan_tag);
+			vlan_tag_insert, vlan_tag, loopback);
 	else
 		enic_queue_wq_skb_vlan(enic, wq, skb,
-			vlan_tag_insert, vlan_tag);
+			vlan_tag_insert, vlan_tag, loopback);
 }
 
 /* netif_tx_lock held, process context with BHs disabled, or BH */
@@ -1275,7 +1281,7 @@ static int enic_rq_alloc_buf(struct vnic_rq *rq)
 	struct enic *enic = vnic_dev_priv(rq->vdev);
 	struct net_device *netdev = enic->netdev;
 	struct sk_buff *skb;
-	unsigned int len = netdev->mtu + ETH_HLEN;
+	unsigned int len = netdev->mtu + VLAN_ETH_HLEN;
 	unsigned int os_buf_index = 0;
 	dma_addr_t dma_addr;
 
@@ -2441,6 +2447,12 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 	netdev->ethtool_ops = &enic_ethtool_ops;
 
 	netdev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
+	if (ENIC_SETTING(enic, LOOP)) {
+		netdev->features &= ~NETIF_F_HW_VLAN_TX;
+		enic->loop_enable = 1;
+		enic->loop_tag = enic->config.loop_tag;
+		dev_info(dev, "loopback tag=0x%04x\n", enic->loop_tag);
+	}
 	if (ENIC_SETTING(enic, TXCSUM))
 		netdev->features |= NETIF_F_SG | NETIF_F_HW_CSUM;
 	if (ENIC_SETTING(enic, TSO))
diff --git a/drivers/net/enic/enic_res.c b/drivers/net/enic/enic_res.c
index 478928b..2cc7e27 100644
--- a/drivers/net/enic/enic_res.c
+++ b/drivers/net/enic/enic_res.c
@@ -70,6 +70,7 @@ int enic_get_vnic_config(struct enic *enic)
 	GET_CONFIG(intr_timer_type);
 	GET_CONFIG(intr_mode);
 	GET_CONFIG(intr_timer_usec);
+	GET_CONFIG(loop_tag);
 
 	c->wq_desc_count =
 		min_t(u32, ENIC_MAX_WQ_DESCS,
diff --git a/drivers/net/enic/enic_res.h b/drivers/net/enic/enic_res.h
index 3f6e039..8b25a07 100644
--- a/drivers/net/enic/enic_res.h
+++ b/drivers/net/enic/enic_res.h
@@ -43,7 +43,7 @@ static inline void enic_queue_wq_desc_ex(struct vnic_wq *wq,
 	void *os_buf, dma_addr_t dma_addr, unsigned int len,
 	unsigned int mss_or_csum_offset, unsigned int hdr_len,
 	int vlan_tag_insert, unsigned int vlan_tag,
-	int offload_mode, int cq_entry, int sop, int eop)
+	int offload_mode, int cq_entry, int sop, int eop, int loopback)
 {
 	struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
 
@@ -56,61 +56,62 @@ static inline void enic_queue_wq_desc_ex(struct vnic_wq *wq,
 		0, /* fcoe_encap */
 		(u8)vlan_tag_insert,
 		(u16)vlan_tag,
-		0 /* loopback */);
+		(u8)loopback);
 
 	vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop);
 }
 
 static inline void enic_queue_wq_desc_cont(struct vnic_wq *wq,
-	void *os_buf, dma_addr_t dma_addr, unsigned int len, int eop)
+	void *os_buf, dma_addr_t dma_addr, unsigned int len,
+	int eop, int loopback)
 {
 	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
 		0, 0, 0, 0, 0,
-		eop, 0 /* !SOP */, eop);
+		eop, 0 /* !SOP */, eop, loopback);
 }
 
 static inline void enic_queue_wq_desc(struct vnic_wq *wq, void *os_buf,
 	dma_addr_t dma_addr, unsigned int len, int vlan_tag_insert,
-	unsigned int vlan_tag, int eop)
+	unsigned int vlan_tag, int eop, int loopback)
 {
 	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
 		0, 0, vlan_tag_insert, vlan_tag,
 		WQ_ENET_OFFLOAD_MODE_CSUM,
-		eop, 1 /* SOP */, eop);
+		eop, 1 /* SOP */, eop, loopback);
 }
 
 static inline void enic_queue_wq_desc_csum(struct vnic_wq *wq,
 	void *os_buf, dma_addr_t dma_addr, unsigned int len,
 	int ip_csum, int tcpudp_csum, int vlan_tag_insert,
-	unsigned int vlan_tag, int eop)
+	unsigned int vlan_tag, int eop, int loopback)
 {
 	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
 		(ip_csum ? 1 : 0) + (tcpudp_csum ? 2 : 0),
 		0, vlan_tag_insert, vlan_tag,
 		WQ_ENET_OFFLOAD_MODE_CSUM,
-		eop, 1 /* SOP */, eop);
+		eop, 1 /* SOP */, eop, loopback);
 }
 
 static inline void enic_queue_wq_desc_csum_l4(struct vnic_wq *wq,
 	void *os_buf, dma_addr_t dma_addr, unsigned int len,
 	unsigned int csum_offset, unsigned int hdr_len,
-	int vlan_tag_insert, unsigned int vlan_tag, int eop)
+	int vlan_tag_insert, unsigned int vlan_tag, int eop, int loopback)
 {
 	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
 		csum_offset, hdr_len, vlan_tag_insert, vlan_tag,
 		WQ_ENET_OFFLOAD_MODE_CSUM_L4,
-		eop, 1 /* SOP */, eop);
+		eop, 1 /* SOP */, eop, loopback);
 }
 
 static inline void enic_queue_wq_desc_tso(struct vnic_wq *wq,
 	void *os_buf, dma_addr_t dma_addr, unsigned int len,
 	unsigned int mss, unsigned int hdr_len, int vlan_tag_insert,
-	unsigned int vlan_tag, int eop)
+	unsigned int vlan_tag, int eop, int loopback)
 {
 	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
 		mss, hdr_len, vlan_tag_insert, vlan_tag,
 		WQ_ENET_OFFLOAD_MODE_TSO,
-		eop, 1 /* SOP */, eop);
+		eop, 1 /* SOP */, eop, loopback);
 }
 
 static inline void enic_queue_rq_desc(struct vnic_rq *rq,
diff --git a/drivers/net/enic/vnic_enet.h b/drivers/net/enic/vnic_enet.h
index 8eeb675..42baaa1 100644
--- a/drivers/net/enic/vnic_enet.h
+++ b/drivers/net/enic/vnic_enet.h
@@ -35,6 +35,7 @@ struct vnic_enet_config {
 	u8 intr_mode;
 	char devname[16];
 	u32 intr_timer_usec;
+	u16 loop_tag;
 };
 
 #define VENETF_TSO		0x1	/* TSO enabled */
@@ -48,5 +49,6 @@ struct vnic_enet_config {
 #define VENETF_RSSHASH_TCPIPV6	0x100	/* Hash on TCP + IPv6 fields */
 #define VENETF_RSSHASH_IPV6_EX	0x200	/* Hash on IPv6 extended fields */
 #define VENETF_RSSHASH_TCPIPV6_EX 0x400	/* Hash on TCP + IPv6 ext. fields */
+#define VENETF_LOOP		0x800	/* Loopback enabled */
 
 #endif /* _VNIC_ENIC_H_ */

[net-next-2.6 PATCH 09/10] enic: Bug Fix: Handle surprise hardware removals

[Vasanthy Kolluri]

From: Vasanthy Kolluri <vkolluri@cisco.com>

Handle surprise hardware removals gracefully during devcmd issue and init,
cleanup of queues.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
---
 drivers/net/enic/vnic_dev.c |    9 +++++++++
 drivers/net/enic/vnic_rq.c  |   13 +++++++++++--
 drivers/net/enic/vnic_wq.c  |    2 --
 3 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/drivers/net/enic/vnic_dev.c b/drivers/net/enic/vnic_dev.c
index 180912f..662123c 100644
--- a/drivers/net/enic/vnic_dev.c
+++ b/drivers/net/enic/vnic_dev.c
@@ -275,6 +275,11 @@ static int _vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
 	int err;
 
 	status = ioread32(&devcmd->status);
+	if (status == 0xFFFFFFFF) {
+		/* PCI-e target device is gone */
+		return -ENODEV;
+	}
+
 	if (status & STAT_BUSY) {
 		pr_err("Busy devcmd %d\n", _CMD_N(cmd));
 		return -EBUSY;
@@ -296,6 +301,10 @@ static int _vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
 		udelay(100);
 
 		status = ioread32(&devcmd->status);
+		if (status == 0xFFFFFFFF) {
+			/* PCI-e target device is gone */
+			return -ENODEV;
+		}
 
 		if (!(status & STAT_BUSY)) {
 
diff --git a/drivers/net/enic/vnic_rq.c b/drivers/net/enic/vnic_rq.c
index 45cfc79..061a26f 100644
--- a/drivers/net/enic/vnic_rq.c
+++ b/drivers/net/enic/vnic_rq.c
@@ -146,6 +146,11 @@ void vnic_rq_init(struct vnic_rq *rq, unsigned int cq_index,
 	/* Use current fetch_index as the ring starting point */
 	fetch_index = ioread32(&rq->ctrl->fetch_index);
 
+	if (fetch_index == 0xFFFFFFFF) { /* check for hardware gone  */
+		/* Hardware surprise removal: reset fetch_index */
+		fetch_index = 0;
+	}
+
 	vnic_rq_init_start(rq, cq_index,
 		fetch_index, fetch_index,
 		error_interrupt_enable,
@@ -187,8 +192,6 @@ void vnic_rq_clean(struct vnic_rq *rq,
 	u32 fetch_index;
 	unsigned int count = rq->ring.desc_count;
 
-	BUG_ON(ioread32(&rq->ctrl->enable));
-
 	buf = rq->to_clean;
 
 	while (vnic_rq_desc_used(rq) > 0) {
@@ -201,6 +204,12 @@ void vnic_rq_clean(struct vnic_rq *rq,
 
 	/* Use current fetch_index as the ring starting point */
 	fetch_index = ioread32(&rq->ctrl->fetch_index);
+
+	if (fetch_index == 0xFFFFFFFF) { /* check for hardware gone  */
+		/* Hardware surprise removal: reset fetch_index */
+		fetch_index = 0;
+	}
+
 	rq->to_use = rq->to_clean =
 		&rq->bufs[fetch_index / VNIC_RQ_BUF_BLK_ENTRIES(count)]
 			[fetch_index % VNIC_RQ_BUF_BLK_ENTRIES(count)];
diff --git a/drivers/net/enic/vnic_wq.c b/drivers/net/enic/vnic_wq.c
index 6c4d4f7..3ab7fa5 100644
--- a/drivers/net/enic/vnic_wq.c
+++ b/drivers/net/enic/vnic_wq.c
@@ -178,8 +178,6 @@ void vnic_wq_clean(struct vnic_wq *wq,
 {
 	struct vnic_wq_buf *buf;
 
-	BUG_ON(ioread32(&wq->ctrl->enable));
-
 	buf = wq->to_clean;
 
 	while (vnic_wq_desc_used(wq) > 0) {

[net-next-2.6 PATCH 10/10] enic: Clean ups

[Vasanthy Kolluri]

From: Vasanthy Kolluri <vkolluri@cisco.com>

1) Update copyright
2) Fix hardware queue descriptor field size CQ_ENET_RQ_DESC_FCOE_SOF_BITS
3) Include rtnetlink.h instead of if_link.h
4) Selectively flush writes to interrupt mask register
5) Use pci_enable_device_mem
6) Remove unused variables and header files
7) Fix size mismatch between memory alloc and free operations of a variable
8) Check for non null arguments to vic_provinfo_alloc

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
---
 drivers/net/enic/cq_desc.h       |    2 +-
 drivers/net/enic/cq_enet_desc.h  |    4 ++--
 drivers/net/enic/enic.h          |    4 ++--
 drivers/net/enic/enic_main.c     |   11 ++++++-----
 drivers/net/enic/enic_res.c      |    2 +-
 drivers/net/enic/enic_res.h      |    2 +-
 drivers/net/enic/rq_enet_desc.h  |    2 +-
 drivers/net/enic/vnic_cq.c       |    2 +-
 drivers/net/enic/vnic_cq.h       |    2 +-
 drivers/net/enic/vnic_dev.c      |   25 +++----------------------
 drivers/net/enic/vnic_dev.h      |    2 +-
 drivers/net/enic/vnic_devcmd.h   |    2 +-
 drivers/net/enic/vnic_enet.h     |    2 +-
 drivers/net/enic/vnic_intr.c     |    2 +-
 drivers/net/enic/vnic_intr.h     |    8 ++++++--
 drivers/net/enic/vnic_nic.h      |    2 +-
 drivers/net/enic/vnic_resource.h |    2 +-
 drivers/net/enic/vnic_rq.c       |    4 +---
 drivers/net/enic/vnic_rq.h       |    2 +-
 drivers/net/enic/vnic_rss.h      |    2 +-
 drivers/net/enic/vnic_stats.h    |    2 +-
 drivers/net/enic/vnic_vic.c      |    3 +++
 drivers/net/enic/vnic_wq.c       |    3 +--
 drivers/net/enic/vnic_wq.h       |    2 +-
 drivers/net/enic/wq_enet_desc.h  |    2 +-
 25 files changed, 41 insertions(+), 55 deletions(-)

diff --git a/drivers/net/enic/cq_desc.h b/drivers/net/enic/cq_desc.h
index 1eb289f..d6dd1b4 100644
--- a/drivers/net/enic/cq_desc.h
+++ b/drivers/net/enic/cq_desc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
diff --git a/drivers/net/enic/cq_enet_desc.h b/drivers/net/enic/cq_enet_desc.h
index f2d98bb..c2c0680 100644
--- a/drivers/net/enic/cq_enet_desc.h
+++ b/drivers/net/enic/cq_enet_desc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
@@ -82,7 +82,7 @@ struct cq_enet_rq_desc {
 	((1 << CQ_ENET_RQ_DESC_VLAN_TCI_USER_PRIO_BITS) - 1)
 #define CQ_ENET_RQ_DESC_VLAN_TCI_USER_PRIO_SHIFT    13
 
-#define CQ_ENET_RQ_DESC_FCOE_SOF_BITS               4
+#define CQ_ENET_RQ_DESC_FCOE_SOF_BITS               8
 #define CQ_ENET_RQ_DESC_FCOE_SOF_MASK \
 	((1 << CQ_ENET_RQ_DESC_FCOE_SOF_BITS) - 1)
 #define CQ_ENET_RQ_DESC_FCOE_EOF_BITS               8
diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index 7280314..f239aa8 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
@@ -33,7 +33,7 @@
 #define DRV_NAME		"enic"
 #define DRV_DESCRIPTION		"Cisco VIC Ethernet NIC Driver"
 #define DRV_VERSION		"1.4.1.1"
-#define DRV_COPYRIGHT		"Copyright 2008-2009 Cisco Systems, Inc"
+#define DRV_COPYRIGHT		"Copyright 2008-2010 Cisco Systems, Inc"
 
 #define ENIC_BARS_MAX		6
 
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index eda5530..6c6795b 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
@@ -29,12 +29,12 @@
 #include <linux/etherdevice.h>
 #include <linux/if_ether.h>
 #include <linux/if_vlan.h>
-#include <linux/if_link.h>
 #include <linux/ethtool.h>
 #include <linux/in.h>
 #include <linux/ip.h>
 #include <linux/ipv6.h>
 #include <linux/tcp.h>
+#include <linux/rtnetlink.h>
 #include <net/ip6_checksum.h>
 
 #include "cq_enet_desc.h"
@@ -1799,8 +1799,10 @@ static int enic_stop(struct net_device *netdev)
 	unsigned int i;
 	int err;
 
-	for (i = 0; i < enic->intr_count; i++)
+	for (i = 0; i < enic->intr_count; i++) {
 		vnic_intr_mask(&enic->intr[i]);
+		(void)vnic_intr_masked(&enic->intr[i]); /* flush write */
+	}
 
 	enic_synchronize_irqs(enic);
 
@@ -1810,7 +1812,6 @@ static int enic_stop(struct net_device *netdev)
 	napi_disable(&enic->napi);
 	netif_carrier_off(netdev);
 	netif_tx_disable(netdev);
-
 	enic_dev_del_station_addr(enic);
 
 	for (i = 0; i < enic->wq_count; i++) {
@@ -2299,7 +2300,7 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 	/* Setup PCI resources
 	 */
 
-	err = pci_enable_device(pdev);
+	err = pci_enable_device_mem(pdev);
 	if (err) {
 		dev_err(dev, "Cannot enable PCI device, aborting\n");
 		goto err_out_free_netdev;
diff --git a/drivers/net/enic/enic_res.c b/drivers/net/enic/enic_res.c
index 2cc7e27..29ede8a 100644
--- a/drivers/net/enic/enic_res.c
+++ b/drivers/net/enic/enic_res.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
diff --git a/drivers/net/enic/enic_res.h b/drivers/net/enic/enic_res.h
index 8b25a07..83bd172 100644
--- a/drivers/net/enic/enic_res.h
+++ b/drivers/net/enic/enic_res.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
diff --git a/drivers/net/enic/rq_enet_desc.h b/drivers/net/enic/rq_enet_desc.h
index a06e649..e6dd309 100644
--- a/drivers/net/enic/rq_enet_desc.h
+++ b/drivers/net/enic/rq_enet_desc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
diff --git a/drivers/net/enic/vnic_cq.c b/drivers/net/enic/vnic_cq.c
index 326ea40..b86d6ef 100644
--- a/drivers/net/enic/vnic_cq.c
+++ b/drivers/net/enic/vnic_cq.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
diff --git a/drivers/net/enic/vnic_cq.h b/drivers/net/enic/vnic_cq.h
index 114763c..552d3da 100644
--- a/drivers/net/enic/vnic_cq.h
+++ b/drivers/net/enic/vnic_cq.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
diff --git a/drivers/net/enic/vnic_dev.c b/drivers/net/enic/vnic_dev.c
index 662123c..6a5b578 100644
--- a/drivers/net/enic/vnic_dev.c
+++ b/drivers/net/enic/vnic_dev.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
@@ -23,7 +23,6 @@
 #include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/if_ether.h>
-#include <linux/slab.h>
 
 #include "vnic_resource.h"
 #include "vnic_devcmd.h"
@@ -41,8 +40,6 @@ struct vnic_res {
 	unsigned int count;
 };
 
-#define VNIC_DEV_CAP_INIT	0x0001
-
 struct vnic_dev {
 	void *priv;
 	struct pci_dev *pdev;
@@ -53,13 +50,11 @@ struct vnic_dev {
 	struct vnic_devcmd_notify notify_copy;
 	dma_addr_t notify_pa;
 	u32 notify_sz;
-	u32 *linkstatus;
 	dma_addr_t linkstatus_pa;
 	struct vnic_stats *stats;
 	dma_addr_t stats_pa;
 	struct vnic_devcmd_fw_info *fw_info;
 	dma_addr_t fw_info_pa;
-	u32 cap_flags;
 	enum vnic_proxy_type proxy;
 	u32 proxy_index;
 	u64 args[VNIC_DEVCMD_NARGS];
@@ -279,7 +274,6 @@ static int _vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
 		/* PCI-e target device is gone */
 		return -ENODEV;
 	}
-
 	if (status & STAT_BUSY) {
 		pr_err("Busy devcmd %d\n", _CMD_N(cmd));
 		return -EBUSY;
@@ -852,7 +846,7 @@ int vnic_dev_init(struct vnic_dev *vdev, int arg)
 	int wait = 1000;
 	int r = 0;
 
-	if (vdev->cap_flags & VNIC_DEV_CAP_INIT)
+	if (vnic_dev_capable(vdev, CMD_INIT))
 		r = vnic_dev_cmd(vdev, CMD_INIT, &a0, &a1, wait);
 	else {
 		vnic_dev_cmd(vdev, CMD_INIT_v1, &a0, &a1, wait);
@@ -919,9 +913,6 @@ int vnic_dev_deinit(struct vnic_dev *vdev)
 
 int vnic_dev_link_status(struct vnic_dev *vdev)
 {
-	if (vdev->linkstatus)
-		return *vdev->linkstatus;
-
 	if (!vnic_dev_notify_ready(vdev))
 		return 0;
 
@@ -996,14 +987,9 @@ void vnic_dev_unregister(struct vnic_dev *vdev)
 				sizeof(struct vnic_devcmd_notify),
 				vdev->notify,
 				vdev->notify_pa);
-		if (vdev->linkstatus)
-			pci_free_consistent(vdev->pdev,
-				sizeof(u32),
-				vdev->linkstatus,
-				vdev->linkstatus_pa);
 		if (vdev->stats)
 			pci_free_consistent(vdev->pdev,
-				sizeof(struct vnic_dev),
+				sizeof(struct vnic_stats),
 				vdev->stats, vdev->stats_pa);
 		if (vdev->fw_info)
 			pci_free_consistent(vdev->pdev,
@@ -1033,11 +1019,6 @@ struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev,
 	if (!vdev->devcmd)
 		goto err_out;
 
-	vdev->cap_flags = 0;
-
-	if (vnic_dev_capable(vdev, CMD_INIT))
-		vdev->cap_flags |= VNIC_DEV_CAP_INIT;
-
 	return vdev;
 
 err_out:
diff --git a/drivers/net/enic/vnic_dev.h b/drivers/net/enic/vnic_dev.h
index cfdaa69..3a61873 100644
--- a/drivers/net/enic/vnic_dev.h
+++ b/drivers/net/enic/vnic_dev.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
diff --git a/drivers/net/enic/vnic_devcmd.h b/drivers/net/enic/vnic_devcmd.h
index e6c80c7..2066175 100644
--- a/drivers/net/enic/vnic_devcmd.h
+++ b/drivers/net/enic/vnic_devcmd.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
diff --git a/drivers/net/enic/vnic_enet.h b/drivers/net/enic/vnic_enet.h
index 42baaa1..3b32912 100644
--- a/drivers/net/enic/vnic_enet.h
+++ b/drivers/net/enic/vnic_enet.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
diff --git a/drivers/net/enic/vnic_intr.c b/drivers/net/enic/vnic_intr.c
index 416eae7..52ab61a 100644
--- a/drivers/net/enic/vnic_intr.c
+++ b/drivers/net/enic/vnic_intr.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
diff --git a/drivers/net/enic/vnic_intr.h b/drivers/net/enic/vnic_intr.h
index 2fe6c63..09dc0b7 100644
--- a/drivers/net/enic/vnic_intr.h
+++ b/drivers/net/enic/vnic_intr.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
@@ -61,7 +61,11 @@ static inline void vnic_intr_unmask(struct vnic_intr *intr)
 static inline void vnic_intr_mask(struct vnic_intr *intr)
 {
 	iowrite32(1, &intr->ctrl->mask);
-	(void)ioread32(&intr->ctrl->mask);
+}
+
+static inline int vnic_intr_masked(struct vnic_intr *intr)
+{
+	return ioread32(&intr->ctrl->mask);
 }
 
 static inline void vnic_intr_return_credits(struct vnic_intr *intr,
diff --git a/drivers/net/enic/vnic_nic.h b/drivers/net/enic/vnic_nic.h
index cf80ab4..995a50d 100644
--- a/drivers/net/enic/vnic_nic.h
+++ b/drivers/net/enic/vnic_nic.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
diff --git a/drivers/net/enic/vnic_resource.h b/drivers/net/enic/vnic_resource.h
index b61c22a..810287b 100644
--- a/drivers/net/enic/vnic_resource.h
+++ b/drivers/net/enic/vnic_resource.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
diff --git a/drivers/net/enic/vnic_rq.c b/drivers/net/enic/vnic_rq.c
index 061a26f..4d8e546 100644
--- a/drivers/net/enic/vnic_rq.c
+++ b/drivers/net/enic/vnic_rq.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
@@ -22,7 +22,6 @@
 #include <linux/types.h>
 #include <linux/pci.h>
 #include <linux/delay.h>
-#include <linux/slab.h>
 
 #include "vnic_dev.h"
 #include "vnic_rq.h"
@@ -209,7 +208,6 @@ void vnic_rq_clean(struct vnic_rq *rq,
 		/* Hardware surprise removal: reset fetch_index */
 		fetch_index = 0;
 	}
-
 	rq->to_use = rq->to_clean =
 		&rq->bufs[fetch_index / VNIC_RQ_BUF_BLK_ENTRIES(count)]
 			[fetch_index % VNIC_RQ_BUF_BLK_ENTRIES(count)];
diff --git a/drivers/net/enic/vnic_rq.h b/drivers/net/enic/vnic_rq.h
index 8f0fb78..2dc48f9 100644
--- a/drivers/net/enic/vnic_rq.h
+++ b/drivers/net/enic/vnic_rq.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008, 2009 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
diff --git a/drivers/net/enic/vnic_rss.h b/drivers/net/enic/vnic_rss.h
index 5fbb3c9..f62d187 100644
--- a/drivers/net/enic/vnic_rss.h
+++ b/drivers/net/enic/vnic_rss.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
diff --git a/drivers/net/enic/vnic_stats.h b/drivers/net/enic/vnic_stats.h
index 9ff9614..77750ec 100644
--- a/drivers/net/enic/vnic_stats.h
+++ b/drivers/net/enic/vnic_stats.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
diff --git a/drivers/net/enic/vnic_vic.c b/drivers/net/enic/vnic_vic.c
index 0a35085..197c9d2 100644
--- a/drivers/net/enic/vnic_vic.c
+++ b/drivers/net/enic/vnic_vic.c
@@ -27,6 +27,9 @@ struct vic_provinfo *vic_provinfo_alloc(gfp_t flags, u8 *oui, u8 type)
 {
 	struct vic_provinfo *vp;
 
+	if (!oui)
+		return NULL;
+
 	vp = kzalloc(VIC_PROVINFO_MAX_DATA, flags);
 	if (!vp)
 		return NULL;
diff --git a/drivers/net/enic/vnic_wq.c b/drivers/net/enic/vnic_wq.c
index 3ab7fa5..5c84bb8 100644
--- a/drivers/net/enic/vnic_wq.c
+++ b/drivers/net/enic/vnic_wq.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
@@ -22,7 +22,6 @@
 #include <linux/types.h>
 #include <linux/pci.h>
 #include <linux/delay.h>
-#include <linux/slab.h>
 
 #include "vnic_dev.h"
 #include "vnic_wq.h"
diff --git a/drivers/net/enic/vnic_wq.h b/drivers/net/enic/vnic_wq.h
index 1c82139..94ac462 100644
--- a/drivers/net/enic/vnic_wq.h
+++ b/drivers/net/enic/vnic_wq.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
diff --git a/drivers/net/enic/wq_enet_desc.h b/drivers/net/enic/wq_enet_desc.h
index 483596c..c7021e3 100644
--- a/drivers/net/enic/wq_enet_desc.h
+++ b/drivers/net/enic/wq_enet_desc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify

Re: [net-next-2.6 PATCH 10/10] enic: Clean ups

[David Miller]

From: Vasanthy Kolluri <vkolluri@cisco.com>
Date: Thu, 24 Jun 2010 13:52:26 -0700

> diff --git a/drivers/net/enic/vnic_wq.c b/drivers/net/enic/vnic_wq.c
> index 3ab7fa5..5c84bb8 100644
> --- a/drivers/net/enic/vnic_wq.c
> +++ b/drivers/net/enic/vnic_wq.c
> @@ -1,5 +1,5 @@
>  /*
> - * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
> + * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
>   * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
>   *
>   * This program is free software; you may redistribute it and/or modify
> @@ -22,7 +22,6 @@
>  #include <linux/types.h>
>  #include <linux/pci.h>
>  #include <linux/delay.h>
> -#include <linux/slab.h>
>  
>  #include "vnic_dev.h"
>  #include "vnic_wq.h"

I have to remove this otherwise the build breaks:

drivers/net/enic/vnic_wq.c: In function 'vnic_wq_alloc_bufs':
drivers/net/enic/vnic_wq.c:39:3: error: implicit declaration of function 'kzalloc'
drivers/net/enic/vnic_wq.c:39:15: warning: assignment makes pointer from integer without a cast
drivers/net/enic/vnic_wq.c: In function 'vnic_wq_free':
drivers/net/enic/vnic_wq.c:79:3: error: implicit declaration of function 'kfree'
  CC [M]  drivers/net/sfc/mcdi_mac.o
make[3]: *** [drivers/net/enic/vnic_wq.o] Error 1
make[3]: *** Waiting for unfinished jobs....
  CC [M]  drivers/net/sfc/selftest.o
  CC [M]  drivers/net/sfc/ethtool.o
  CC [M]  drivers/net/sfc/qt202x_phy.o
drivers/net/enic/vnic_rq.c: In function 'vnic_rq_alloc_bufs':
drivers/net/enic/vnic_rq.c:39:3: error: implicit declaration of function 'kzalloc'
drivers/net/enic/vnic_rq.c:39:15: warning: assignment makes pointer from integer without a cast
drivers/net/enic/vnic_rq.c: In function 'vnic_rq_free':
drivers/net/enic/vnic_rq.c:79:3: error: implicit declaration of function 'kfree'

Any time you remove any header includes, it is very wise to attempt a wide
assortment of build tests using all sorts of different configurations.

Re: [net-next-2.6 PATCH 0/10] enic: updates to version 1.4.1.1

[David Miller]

From: Vasanthy Kolluri <vkolluri@cisco.com>
Date: Thu, 24 Jun 2010 13:49:10 -0700

> The following patch series implements enic driver updates:
> 
> 01/10 - Feature Add: Replace LRO with GRO
> 02/10 - Bug Fix: Change hardware ingress vlan rewrite mode
> 03/10 - Use a lighter reset operation for enic devices
> 04/10 - Clean up: Add wrapper routines for firmware devcmd calls
> 05/10 - Use (netdev|dev|pr)_<level> macro helpers for logging
> 06/10 - Add new firmware devcmds
> 07/10 - Use receive queue buffer blocks of 32/64 entries
> 08/10 - Feature Add: Add loopback capability to enic devices
> 09/10 - Bug Fix: Handle surprise hardware removals
> 10/10 - Clean ups

All applied, without the "slab.h" include removals so it still
builds.