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-rw-r--r--drivers/net/enic/enic.h25
-rw-r--r--drivers/net/enic/enic_main.c379
-rw-r--r--drivers/net/enic/enic_res.c33
-rw-r--r--drivers/net/enic/enic_res.h2
-rw-r--r--drivers/net/enic/vnic_dev.c74
-rw-r--r--drivers/net/enic/vnic_dev.h14
-rw-r--r--drivers/net/enic/vnic_devcmd.h20
-rw-r--r--drivers/net/enic/vnic_intr.c5
-rw-r--r--drivers/net/enic/vnic_nic.h7
-rw-r--r--drivers/net/enic/vnic_rq.c27
-rw-r--r--drivers/net/enic/vnic_rq.h19
-rw-r--r--drivers/net/enic/vnic_wq.c20
-rw-r--r--drivers/net/enic/vnic_wq.h4
13 files changed, 461 insertions, 168 deletions
diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index c26cea0b300..e1c2076228b 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -29,28 +29,34 @@
#include "vnic_cq.h"
#include "vnic_intr.h"
#include "vnic_stats.h"
+#include "vnic_nic.h"
#include "vnic_rss.h"
#define DRV_NAME "enic"
#define DRV_DESCRIPTION "Cisco 10G Ethernet Driver"
-#define DRV_VERSION "1.0.0.933"
-#define DRV_COPYRIGHT "Copyright 2008 Cisco Systems, Inc"
+#define DRV_VERSION "1.1.0.100"
+#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
+#define ENIC_RQ_MAX 8
+#define ENIC_CQ_MAX (ENIC_WQ_MAX + ENIC_RQ_MAX)
+#define ENIC_INTR_MAX (ENIC_CQ_MAX + 2)
+
enum enic_cq_index {
ENIC_CQ_RQ,
ENIC_CQ_WQ,
- ENIC_CQ_MAX,
};
enum enic_intx_intr_index {
ENIC_INTX_WQ_RQ,
ENIC_INTX_ERR,
ENIC_INTX_NOTIFY,
- ENIC_INTX_MAX,
};
enum enic_msix_intr_index {
@@ -73,7 +79,7 @@ struct enic {
struct net_device *netdev;
struct pci_dev *pdev;
struct vnic_enet_config config;
- struct vnic_dev_bar bar0;
+ struct vnic_dev_bar bar[ENIC_BARS_MAX];
struct vnic_dev *vdev;
struct timer_list notify_timer;
struct work_struct reset;
@@ -88,22 +94,23 @@ struct enic {
u32 port_mtu;
/* work queue cache line section */
- ____cacheline_aligned struct vnic_wq wq[1];
- spinlock_t wq_lock[1];
+ ____cacheline_aligned struct vnic_wq wq[ENIC_WQ_MAX];
+ spinlock_t wq_lock[ENIC_WQ_MAX];
unsigned int wq_count;
struct vlan_group *vlan_group;
/* receive queue cache line section */
- ____cacheline_aligned struct vnic_rq rq[1];
+ ____cacheline_aligned struct vnic_rq rq[ENIC_RQ_MAX];
unsigned int rq_count;
int (*rq_alloc_buf)(struct vnic_rq *rq);
+ 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_MSIX_MAX];
+ ____cacheline_aligned struct vnic_intr intr[ENIC_INTR_MAX];
unsigned int intr_count;
u32 __iomem *legacy_pba; /* memory-mapped */
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 8005b602f77..d69d52ed772 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -44,10 +44,15 @@
#include "enic.h"
#define ENIC_NOTIFY_TIMER_PERIOD (2 * HZ)
+#define WQ_ENET_MAX_DESC_LEN (1 << WQ_ENET_LEN_BITS)
+#define MAX_TSO (1 << 16)
+#define ENIC_DESC_MAX_SPLITS (MAX_TSO / WQ_ENET_MAX_DESC_LEN + 1)
+
+#define PCI_DEVICE_ID_CISCO_VIC_ENET 0x0043 /* ethernet vnic */
/* Supported devices */
static struct pci_device_id enic_id_table[] = {
- { PCI_VDEVICE(CISCO, 0x0043) },
+ { PCI_VDEVICE(CISCO, PCI_DEVICE_ID_CISCO_VIC_ENET) },
{ 0, } /* end of table */
};
@@ -256,7 +261,7 @@ static void enic_set_msglevel(struct net_device *netdev, u32 value)
enic->msg_enable = value;
}
-static struct ethtool_ops enic_ethtool_ops = {
+static const struct ethtool_ops enic_ethtool_ops = {
.get_settings = enic_get_settings,
.get_drvinfo = enic_get_drvinfo,
.get_msglevel = enic_get_msglevel,
@@ -310,7 +315,8 @@ static int enic_wq_service(struct vnic_dev *vdev, struct cq_desc *cq_desc,
opaque);
if (netif_queue_stopped(enic->netdev) &&
- vnic_wq_desc_avail(&enic->wq[q_number]) >= MAX_SKB_FRAGS + 1)
+ vnic_wq_desc_avail(&enic->wq[q_number]) >=
+ (MAX_SKB_FRAGS + ENIC_DESC_MAX_SPLITS))
netif_wake_queue(enic->netdev);
spin_unlock(&enic->wq_lock[q_number]);
@@ -356,7 +362,7 @@ static void enic_mtu_check(struct enic *enic)
{
u32 mtu = vnic_dev_mtu(enic->vdev);
- if (mtu != enic->port_mtu) {
+ if (mtu && mtu != enic->port_mtu) {
if (mtu < enic->netdev->mtu)
printk(KERN_WARNING PFX
"%s: interface MTU (%d) set higher "
@@ -525,7 +531,11 @@ static inline void enic_queue_wq_skb_vlan(struct enic *enic,
unsigned int len_left = skb->len - head_len;
int eop = (len_left == 0);
- /* Queue the main skb fragment */
+ /* Queue the main skb fragment. The fragments are no larger
+ * than max MTU(9000)+ETH_HDR_LEN(14) bytes, which is less
+ * than WQ_ENET_MAX_DESC_LEN length. So only one descriptor
+ * per fragment is queued.
+ */
enic_queue_wq_desc(wq, skb,
pci_map_single(enic->pdev, skb->data,
head_len, PCI_DMA_TODEVICE),
@@ -547,7 +557,11 @@ static inline void enic_queue_wq_skb_csum_l4(struct enic *enic,
unsigned int csum_offset = hdr_len + skb->csum_offset;
int eop = (len_left == 0);
- /* Queue the main skb fragment */
+ /* Queue the main skb fragment. The fragments are no larger
+ * than max MTU(9000)+ETH_HDR_LEN(14) bytes, which is less
+ * than WQ_ENET_MAX_DESC_LEN length. So only one descriptor
+ * per fragment is queued.
+ */
enic_queue_wq_desc_csum_l4(wq, skb,
pci_map_single(enic->pdev, skb->data,
head_len, PCI_DMA_TODEVICE),
@@ -565,10 +579,14 @@ 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)
{
- unsigned int head_len = skb_headlen(skb);
- unsigned int len_left = skb->len - head_len;
+ unsigned int frag_len_left = skb_headlen(skb);
+ unsigned int len_left = skb->len - frag_len_left;
unsigned int hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
int eop = (len_left == 0);
+ unsigned int len;
+ dma_addr_t dma_addr;
+ unsigned int offset = 0;
+ skb_frag_t *frag;
/* Preload TCP csum field with IP pseudo hdr calculated
* with IP length set to zero. HW will later add in length
@@ -584,17 +602,49 @@ static inline void enic_queue_wq_skb_tso(struct enic *enic,
&ipv6_hdr(skb)->daddr, 0, IPPROTO_TCP, 0);
}
- /* Queue the main skb fragment */
- enic_queue_wq_desc_tso(wq, skb,
- pci_map_single(enic->pdev, skb->data,
- head_len, PCI_DMA_TODEVICE),
- head_len,
- mss, hdr_len,
- vlan_tag_insert, vlan_tag,
- eop);
+ /* Queue WQ_ENET_MAX_DESC_LEN length descriptors
+ * for the main skb fragment
+ */
+ while (frag_len_left) {
+ len = min(frag_len_left, (unsigned int)WQ_ENET_MAX_DESC_LEN);
+ dma_addr = pci_map_single(enic->pdev, skb->data + offset,
+ len, PCI_DMA_TODEVICE);
+ enic_queue_wq_desc_tso(wq, skb,
+ dma_addr,
+ len,
+ mss, hdr_len,
+ vlan_tag_insert, vlan_tag,
+ eop && (len == frag_len_left));
+ frag_len_left -= len;
+ offset += len;
+ }
- if (!eop)
- enic_queue_wq_skb_cont(enic, wq, skb, len_left);
+ if (eop)
+ return;
+
+ /* Queue WQ_ENET_MAX_DESC_LEN length descriptors
+ * for additional data fragments
+ */
+ for (frag = skb_shinfo(skb)->frags; len_left; frag++) {
+ len_left -= frag->size;
+ frag_len_left = frag->size;
+ offset = frag->page_offset;
+
+ while (frag_len_left) {
+ len = min(frag_len_left,
+ (unsigned int)WQ_ENET_MAX_DESC_LEN);
+ dma_addr = pci_map_page(enic->pdev, frag->page,
+ offset, len,
+ PCI_DMA_TODEVICE);
+ enic_queue_wq_desc_cont(wq, skb,
+ dma_addr,
+ len,
+ (len_left == 0) &&
+ (len == frag_len_left)); /* EOP? */
+ frag_len_left -= len;
+ offset += len;
+ }
+ }
}
static inline void enic_queue_wq_skb(struct enic *enic,
@@ -622,7 +672,8 @@ static inline void enic_queue_wq_skb(struct enic *enic,
}
/* netif_tx_lock held, process context with BHs disabled, or BH */
-static int enic_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t enic_hard_start_xmit(struct sk_buff *skb,
+ struct net_device *netdev)
{
struct enic *enic = netdev_priv(netdev);
struct vnic_wq *wq = &enic->wq[0];
@@ -647,7 +698,8 @@ static int enic_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev)
spin_lock_irqsave(&enic->wq_lock[0], flags);
- if (vnic_wq_desc_avail(wq) < skb_shinfo(skb)->nr_frags + 1) {
+ if (vnic_wq_desc_avail(wq) <
+ 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 "
@@ -658,7 +710,7 @@ static int enic_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev)
enic_queue_wq_skb(enic, wq, skb);
- if (vnic_wq_desc_avail(wq) < MAX_SKB_FRAGS + 1)
+ if (vnic_wq_desc_avail(wq) < MAX_SKB_FRAGS + ENIC_DESC_MAX_SPLITS)
netif_stop_queue(netdev);
spin_unlock_irqrestore(&enic->wq_lock[0], flags);
@@ -686,8 +738,9 @@ static struct net_device_stats *enic_get_stats(struct net_device *netdev)
net_stats->rx_bytes = stats->rx.rx_bytes_ok;
net_stats->rx_errors = stats->rx.rx_errors;
net_stats->multicast = stats->rx.rx_multicast_frames_ok;
+ net_stats->rx_over_errors = enic->rq_truncated_pkts;
net_stats->rx_crc_errors = enic->rq_bad_fcs;
- net_stats->rx_dropped = stats->rx.rx_no_bufs;
+ net_stats->rx_dropped = stats->rx.rx_no_bufs + stats->rx.rx_drop;
return net_stats;
}
@@ -817,11 +870,12 @@ static void enic_free_rq_buf(struct vnic_rq *rq, struct vnic_rq_buf *buf)
dev_kfree_skb_any(buf->os_buf);
}
-static inline struct sk_buff *enic_rq_alloc_skb(unsigned int size)
+static inline struct sk_buff *enic_rq_alloc_skb(struct net_device *netdev,
+ unsigned int size)
{
struct sk_buff *skb;
- skb = dev_alloc_skb(size + NET_IP_ALIGN);
+ skb = netdev_alloc_skb(netdev, size + NET_IP_ALIGN);
if (skb)
skb_reserve(skb, NET_IP_ALIGN);
@@ -832,12 +886,13 @@ static inline struct sk_buff *enic_rq_alloc_skb(unsigned int size)
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 = enic->netdev->mtu + ETH_HLEN;
+ unsigned int len = netdev->mtu + ETH_HLEN;
unsigned int os_buf_index = 0;
dma_addr_t dma_addr;
- skb = enic_rq_alloc_skb(len);
+ skb = enic_rq_alloc_skb(netdev, len);
if (!skb)
return -ENOMEM;
@@ -850,6 +905,50 @@ static int enic_rq_alloc_buf(struct vnic_rq *rq)
return 0;
}
+static int enic_rq_alloc_buf_a1(struct vnic_rq *rq)
+{
+ struct rq_enet_desc *desc = vnic_rq_next_desc(rq);
+
+ if (vnic_rq_posting_soon(rq)) {
+
+ /* SW workaround for A0 HW erratum: if we're just about
+ * to write posted_index, insert a dummy desc
+ * of type resvd
+ */
+
+ rq_enet_desc_enc(desc, 0, RQ_ENET_TYPE_RESV2, 0);
+ vnic_rq_post(rq, 0, 0, 0, 0);
+ } else {
+ return enic_rq_alloc_buf(rq);
+ }
+
+ return 0;
+}
+
+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);
+ if (err)
+ return err;
+
+ switch (hw_ver) {
+ case VNIC_DEV_HW_VER_A1:
+ enic->rq_alloc_buf = enic_rq_alloc_buf_a1;
+ break;
+ case VNIC_DEV_HW_VER_A2:
+ case VNIC_DEV_HW_VER_UNKNOWN:
+ enic->rq_alloc_buf = enic_rq_alloc_buf;
+ break;
+ default:
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
static int enic_get_skb_header(struct sk_buff *skb, void **iphdr,
void **tcph, u64 *hdr_flags, void *priv)
{
@@ -931,8 +1030,12 @@ static void enic_rq_indicate_buf(struct vnic_rq *rq,
if (packet_error) {
- if (bytes_written > 0 && !fcs_ok)
- enic->rq_bad_fcs++;
+ if (!fcs_ok) {
+ if (bytes_written > 0)
+ enic->rq_bad_fcs++;
+ else if (bytes_written == 0)
+ enic->rq_truncated_pkts++;
+ }
dev_kfree_skb_any(skb);
@@ -1057,7 +1160,7 @@ static int enic_poll(struct napi_struct *napi, int budget)
/* Replenish RQ
*/
- vnic_rq_fill(&enic->rq[0], enic_rq_alloc_buf);
+ vnic_rq_fill(&enic->rq[0], enic->rq_alloc_buf);
} else {
@@ -1092,7 +1195,7 @@ static int enic_poll_msix(struct napi_struct *napi, int budget)
/* Replenish RQ
*/
- vnic_rq_fill(&enic->rq[0], enic_rq_alloc_buf);
+ vnic_rq_fill(&enic->rq[0], enic->rq_alloc_buf);
/* Return intr event credits for this polling
* cycle. An intr event is the completion of a
@@ -1218,6 +1321,7 @@ static int enic_notify_set(struct enic *enic)
{
int err;
+ spin_lock(&enic->devcmd_lock);
switch (vnic_dev_get_intr_mode(enic->vdev)) {
case VNIC_DEV_INTR_MODE_INTX:
err = vnic_dev_notify_set(enic->vdev, ENIC_INTX_NOTIFY);
@@ -1229,6 +1333,7 @@ static int enic_notify_set(struct enic *enic)
err = vnic_dev_notify_set(enic->vdev, -1 /* no intr */);
break;
}
+ spin_unlock(&enic->devcmd_lock);
return err;
}
@@ -1268,7 +1373,7 @@ static int enic_open(struct net_device *netdev)
}
for (i = 0; i < enic->rq_count; i++) {
- err = vnic_rq_fill(&enic->rq[i], enic_rq_alloc_buf);
+ err = vnic_rq_fill(&enic->rq[i], enic->rq_alloc_buf);
if (err) {
printk(KERN_ERR PFX
"%s: Unable to alloc receive buffers.\n",
@@ -1282,12 +1387,16 @@ static int enic_open(struct net_device *netdev)
for (i = 0; i < enic->rq_count; i++)
vnic_rq_enable(&enic->rq[i]);
+ spin_lock(&enic->devcmd_lock);
enic_add_station_addr(enic);
+ spin_unlock(&enic->devcmd_lock);
enic_set_multicast_list(netdev);
netif_wake_queue(netdev);
napi_enable(&enic->napi);
+ spin_lock(&enic->devcmd_lock);
vnic_dev_enable(enic->vdev);
+ spin_unlock(&enic->devcmd_lock);
for (i = 0; i < enic->intr_count; i++)
vnic_intr_unmask(&enic->intr[i]);
@@ -1297,7 +1406,9 @@ 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);
err_out_free_intr:
enic_free_intr(enic);
@@ -1313,7 +1424,9 @@ 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);
napi_disable(&enic->napi);
netif_stop_queue(netdev);
@@ -1331,7 +1444,9 @@ 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_free_intr(enic);
(void)vnic_cq_service(&enic->cq[ENIC_CQ_RQ],
@@ -1471,7 +1586,7 @@ static int enic_set_niccfg(struct enic *enic)
const u8 ig_vlan_strip_en = 1;
/* Enable VLAN tag stripping. RSS not enabled (yet).
- */
+ */
return enic_set_nic_cfg(enic,
rss_default_cpu, rss_hash_type,
@@ -1506,8 +1621,8 @@ static void enic_reset(struct work_struct *work)
static int enic_set_intr_mode(struct enic *enic)
{
- unsigned int n = ARRAY_SIZE(enic->rq);
- unsigned int m = ARRAY_SIZE(enic->wq);
+ unsigned int n = 1;
+ unsigned int m = 1;
unsigned int i;
/* Set interrupt mode (INTx, MSI, MSI-X) depending
@@ -1608,12 +1723,6 @@ static void enic_clear_intr_mode(struct enic *enic)
vnic_dev_set_intr_mode(enic->vdev, VNIC_DEV_INTR_MODE_UNKNOWN);
}
-static void enic_iounmap(struct enic *enic)
-{
- if (enic->bar0.vaddr)
- iounmap(enic->bar0.vaddr);
-}
-
static const struct net_device_ops enic_netdev_ops = {
.ndo_open = enic_open,
.ndo_stop = enic_stop,
@@ -1632,6 +1741,97 @@ static const struct net_device_ops enic_netdev_ops = {
#endif
};
+void enic_dev_deinit(struct enic *enic)
+{
+ netif_napi_del(&enic->napi);
+ enic_free_vnic_resources(enic);
+ enic_clear_intr_mode(enic);
+}
+
+int enic_dev_init(struct enic *enic)
+{
+ struct net_device *netdev = enic->netdev;
+ int err;
+
+ /* Get vNIC configuration
+ */
+
+ err = enic_get_vnic_config(enic);
+ if (err) {
+ printk(KERN_ERR PFX
+ "Get vNIC configuration failed, aborting.\n");
+ return err;
+ }
+
+ /* Get available resource counts
+ */
+
+ enic_get_res_counts(enic);
+
+ /* Set interrupt mode based on resource counts and system
+ * capabilities
+ */
+
+ err = enic_set_intr_mode(enic);
+ if (err) {
+ printk(KERN_ERR PFX
+ "Failed to set intr mode, aborting.\n");
+ return err;
+ }
+
+ /* Allocate and configure vNIC resources
+ */
+
+ err = enic_alloc_vnic_resources(enic);
+ if (err) {
+ printk(KERN_ERR PFX
+ "Failed to alloc vNIC resources, aborting.\n");
+ goto err_out_free_vnic_resources;
+ }
+
+ enic_init_vnic_resources(enic);
+
+ err = enic_set_rq_alloc_buf(enic);
+ if (err) {
+ printk(KERN_ERR PFX
+ "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");
+ goto err_out_free_vnic_resources;
+ }
+
+ switch (vnic_dev_get_intr_mode(enic->vdev)) {
+ default:
+ netif_napi_add(netdev, &enic->napi, enic_poll, 64);
+ break;
+ case VNIC_DEV_INTR_MODE_MSIX:
+ netif_napi_add(netdev, &enic->napi, enic_poll_msix, 64);
+ break;
+ }
+
+ return 0;
+
+err_out_free_vnic_resources:
+ enic_clear_intr_mode(enic);
+ enic_free_vnic_resources(enic);
+
+ return err;
+}
+
+static void enic_iounmap(struct enic *enic)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(enic->bar); i++)
+ if (enic->bar[i].vaddr)
+ iounmap(enic->bar[i].vaddr);
+}
+
static int __devinit enic_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
@@ -1709,31 +1909,28 @@ static int __devinit enic_probe(struct pci_dev *pdev,
using_dac = 1;
}
- /* Map vNIC resources from BAR0
+ /* Map vNIC resources from BAR0-5
*/
- if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
- printk(KERN_ERR PFX
- "BAR0 not memory-map'able, aborting.\n");
- err = -ENODEV;
- goto err_out_release_regions;
- }
-
- enic->bar0.vaddr = pci_iomap(pdev, 0, enic->bar0.len);
- enic->bar0.bus_addr = pci_resource_start(pdev, 0);
- enic->bar0.len = pci_resource_len(pdev, 0);
-
- if (!enic->bar0.vaddr) {
- printk(KERN_ERR PFX
- "Cannot memory-map BAR0 res hdr, aborting.\n");
- err = -ENODEV;
- goto err_out_release_regions;
+ for (i = 0; i < ARRAY_SIZE(enic->bar); i++) {
+ if (!(pci_resource_flags(pdev, i) & IORESOURCE_MEM))
+ continue;
+ 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);
+ err = -ENODEV;
+ goto err_out_iounmap;
+ }
+ enic->bar[i].bus_addr = pci_resource_start(pdev, i);
}
/* Register vNIC device
*/
- enic->vdev = vnic_dev_register(NULL, enic, pdev, &enic->bar0);
+ 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");
@@ -1768,51 +1965,13 @@ static int __devinit enic_probe(struct pci_dev *pdev,
goto err_out_dev_close;
}
- /* Get vNIC configuration
- */
-
- err = enic_get_vnic_config(enic);
- if (err) {
- printk(KERN_ERR PFX
- "Get vNIC configuration failed, aborting.\n");
- goto err_out_dev_close;
- }
-
- /* Get available resource counts
- */
-
- enic_get_res_counts(enic);
-
- /* Set interrupt mode based on resource counts and system
- * capabilities
- */
-
- err = enic_set_intr_mode(enic);
+ err = enic_dev_init(enic);
if (err) {
printk(KERN_ERR PFX
- "Failed to set intr mode, aborting.\n");
+ "Device initialization failed, aborting.\n");
goto err_out_dev_close;
}
- /* Allocate and configure vNIC resources
- */
-
- err = enic_alloc_vnic_resources(enic);
- if (err) {
- printk(KERN_ERR PFX
- "Failed to alloc vNIC resources, aborting.\n");
- goto err_out_free_vnic_resources;
- }
-
- enic_init_vnic_resources(enic);
-
- err = enic_set_niccfg(enic);
- if (err) {
- printk(KERN_ERR PFX
- "Failed to config nic, aborting.\n");
- goto err_out_free_vnic_resources;
- }
-
/* Setup notification timer, HW reset task, and locks
*/
@@ -1837,23 +1996,15 @@ static int __devinit enic_probe(struct pci_dev *pdev,
if (err) {
printk(KERN_ERR PFX
"Invalid MAC address, aborting.\n");
- goto err_out_free_vnic_resources;
+ goto err_out_dev_deinit;
}
netdev->netdev_ops = &enic_netdev_ops;
netdev->watchdog_timeo = 2 * HZ;
netdev->ethtool_ops = &enic_ethtool_ops;
- switch (vnic_dev_get_intr_mode(enic->vdev)) {
- default:
- netif_napi_add(netdev, &enic->napi, enic_poll, 64);
- break;
- case VNIC_DEV_INTR_MODE_MSIX:
- netif_napi_add(netdev, &enic->napi, enic_poll_msix, 64);
- break;
- }
-
- netdev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
+ netdev->features |= NETIF_F_HW_VLAN_TX |
+ NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
if (ENIC_SETTING(enic, TXCSUM))
netdev->features |= NETIF_F_SG | NETIF_F_HW_CSUM;
if (ENIC_SETTING(enic, TSO))
@@ -1879,17 +2030,16 @@ static int __devinit enic_probe(struct pci_dev *pdev,
if (err) {
printk(KERN_ERR PFX
"Cannot register net device, aborting.\n");
- goto err_out_free_vnic_resources;
+ goto err_out_dev_deinit;
}
return 0;
-err_out_free_vnic_resources:
- enic_free_vnic_resources(enic);
+err_out_dev_deinit:
+ enic_dev_deinit(enic);
err_out_dev_close:
vnic_dev_close(enic->vdev);
err_out_vnic_unregister:
- enic_clear_intr_mode(enic);
vnic_dev_unregister(enic->vdev);
err_out_iounmap:
enic_iounmap(enic);
@@ -1913,9 +2063,8 @@ static void __devexit enic_remove(struct pci_dev *pdev)
flush_scheduled_work();
unregister_netdev(netdev);
- enic_free_vnic_resources(enic);
+ enic_dev_deinit(enic);
vnic_dev_close(enic->vdev);
- enic_clear_intr_mode(enic);
vnic_dev_unregister(enic->vdev);
enic_iounmap(enic);
pci_release_regions(pdev);
diff --git a/drivers/net/enic/enic_res.c b/drivers/net/enic/enic_res.c
index e5fc9384f8f..32111144efc 100644
--- a/drivers/net/enic/enic_res.c
+++ b/drivers/net/enic/enic_res.c
@@ -156,6 +156,22 @@ int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
return vnic_dev_cmd(enic->vdev, CMD_NIC_CFG, &a0, &a1, wait);
}
+int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len)
+{
+ u64 a0 = (u64)key_pa, a1 = len;
+ int wait = 1000;
+
+ return vnic_dev_cmd(enic->vdev, CMD_RSS_KEY, &a0, &a1, wait);
+}
+
+int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len)
+{
+ u64 a0 = (u64)cpu_pa, a1 = len;
+ int wait = 1000;
+
+ return vnic_dev_cmd(enic->vdev, CMD_RSS_CPU, &a0, &a1, wait);
+}
+
void enic_free_vnic_resources(struct enic *enic)
{
unsigned int i;
@@ -172,11 +188,18 @@ void enic_free_vnic_resources(struct enic *enic)
void enic_get_res_counts(struct enic *enic)
{
- enic->wq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_WQ);
- enic->rq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_RQ);
- enic->cq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_CQ);
- enic->intr_count = vnic_dev_get_res_count(enic->vdev,
- RES_TYPE_INTR_CTRL);
+ enic->wq_count = min_t(int,
+ vnic_dev_get_res_count(enic->vdev, RES_TYPE_WQ),
+ ENIC_WQ_MAX);
+ enic->rq_count = min_t(int,
+ vnic_dev_get_res_count(enic->vdev, RES_TYPE_RQ),
+ ENIC_RQ_MAX);
+ enic->cq_count = min_t(int,
+ vnic_dev_get_res_count(enic->vdev, RES_TYPE_CQ),
+ ENIC_CQ_MAX);
+ enic->intr_count = min_t(int,
+ 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",
diff --git a/drivers/net/enic/enic_res.h b/drivers/net/enic/enic_res.h
index 7bf272fa859..abc19741ab0 100644
--- a/drivers/net/enic/enic_res.h
+++ b/drivers/net/enic/enic_res.h
@@ -139,6 +139,8 @@ void 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);
+int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len);
+int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len);
void enic_get_res_counts(struct enic *enic);
void enic_init_vnic_resources(struct enic *enic);
int enic_alloc_vnic_resources(struct enic *);
diff --git a/drivers/net/enic/vnic_dev.c b/drivers/net/enic/vnic_dev.c
index e21b9d636ae..29a48e8b59d 100644
--- a/drivers/net/enic/vnic_dev.c
+++ b/drivers/net/enic/vnic_dev.c
@@ -31,6 +31,7 @@
struct vnic_res {
void __iomem *vaddr;
+ dma_addr_t bus_addr;
unsigned int count;
};
@@ -67,12 +68,15 @@ void *vnic_dev_priv(struct vnic_dev *vdev)
}
static int vnic_dev_discover_res(struct vnic_dev *vdev,
- struct vnic_dev_bar *bar)
+ struct vnic_dev_bar *bar, unsigned int num_bars)
{
struct vnic_resource_header __iomem *rh;
struct vnic_resource __iomem *r;
u8 type;
+ if (num_bars == 0)
+ return -EINVAL;
+
if (bar->len < VNIC_MAX_RES_HDR_SIZE) {
printk(KERN_ERR "vNIC BAR0 res hdr length error\n");
return -EINVAL;
@@ -104,7 +108,10 @@ static int vnic_dev_discover_res(struct vnic_dev *vdev,
r++;
- if (bar_num != 0) /* only mapping in BAR0 resources */
+ if (bar_num >= num_bars)
+ continue;
+
+ if (!bar[bar_num].len || !bar[bar_num].vaddr)
continue;
switch (type) {
@@ -114,13 +121,13 @@ static int vnic_dev_discover_res(struct vnic_dev *vdev,
case RES_TYPE_INTR_CTRL:
/* each count is stride bytes long */
len = count * VNIC_RES_STRIDE;
- if (len + bar_offset > bar->len) {
+ if (len + bar_offset > bar[bar_num].len) {
printk(KERN_ERR "vNIC BAR0 resource %d "
"out-of-bounds, offset 0x%x + "
"size 0x%x > bar len 0x%lx\n",
type, bar_offset,
len,
- bar->len);
+ bar[bar_num].len);
return -EINVAL;
}
break;
@@ -133,7 +140,9 @@ static int vnic_dev_discover_res(struct vnic_dev *vdev,
}
vdev->res[type].count = count;
- vdev->res[type].vaddr = (char __iomem *)bar->vaddr + bar_offset;
+ vdev->res[type].vaddr = (char __iomem *)bar[bar_num].vaddr +
+ bar_offset;
+ vdev->res[type].bus_addr = bar[bar_num].bus_addr + bar_offset;
}
return 0;
@@ -163,6 +172,21 @@ void __iomem *vnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type,
}
}
+dma_addr_t vnic_dev_get_res_bus_addr(struct vnic_dev *vdev,
+ enum vnic_res_type type, unsigned int index)
+{
+ switch (type) {
+ case RES_TYPE_WQ:
+ case RES_TYPE_RQ:
+ case RES_TYPE_CQ:
+ case RES_TYPE_INTR_CTRL:
+ return vdev->res[type].bus_addr +
+ index * VNIC_RES_STRIDE;
+ default:
+ return vdev->res[type].bus_addr;
+ }
+}
+
unsigned int vnic_dev_desc_ring_size(struct vnic_dev_ring *ring,
unsigned int desc_count, unsigned int desc_size)
{
@@ -257,7 +281,7 @@ int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
iowrite32(cmd, &devcmd->cmd);
if ((_CMD_FLAGS(cmd) & _CMD_FLAGS_NOWAIT))
- return 0;
+ return 0;
for (delay = 0; delay < wait; delay++) {
@@ -325,6 +349,25 @@ int vnic_dev_fw_info(struct vnic_dev *vdev,
return err;
}
+int vnic_dev_hw_version(struct vnic_dev *vdev, enum vnic_dev_hw_version *hw_ver)
+{
+ struct vnic_devcmd_fw_info *fw_info;
+ int err;
+
+ err = vnic_dev_fw_info(vdev, &fw_info);
+ if (err)
+ return err;
+
+ if (strncmp(fw_info->hw_version, "A1", sizeof("A1")) == 0)
+ *hw_ver = VNIC_DEV_HW_VER_A1;
+ else if (strncmp(fw_info->hw_version, "A2", sizeof("A2")) == 0)
+ *hw_ver = VNIC_DEV_HW_VER_A2;
+ else
+ *hw_ver = VNIC_DEV_HW_VER_UNKNOWN;
+
+ return 0;
+}
+
int vnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, unsigned int size,
void *value)
{
@@ -517,6 +560,20 @@ void vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr)
printk(KERN_ERR "Can't del addr [%pM], %d\n", addr, err);
}
+int vnic_dev_raise_intr(struct vnic_dev *vdev, u16 intr)
+{
+ u64 a0 = intr, a1 = 0;
+ int wait = 1000;
+ int err;
+
+ 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);
+
+ return err;
+}
+
int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr)
{
u64 a0, a1;
@@ -684,7 +741,8 @@ void vnic_dev_unregister(struct vnic_dev *vdev)
}
struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev,
- void *priv, struct pci_dev *pdev, struct vnic_dev_bar *bar)
+ void *priv, struct pci_dev *pdev, struct vnic_dev_bar *bar,
+ unsigned int num_bars)
{
if (!vdev) {
vdev = kzalloc(sizeof(struct vnic_dev), GFP_ATOMIC);
@@ -695,7 +753,7 @@ struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev,
vdev->priv = priv;
vdev->pdev = pdev;
- if (vnic_dev_discover_res(vdev, bar))
+ if (vnic_dev_discover_res(vdev, bar, num_bars))
goto err_out;
vdev->devcmd = vnic_dev_get_res(vdev, RES_TYPE_DEVCMD, 0);
diff --git a/drivers/net/enic/vnic_dev.h b/drivers/net/enic/vnic_dev.h
index 8aa8db2fd03..fc5e3eb35a5 100644
--- a/drivers/net/enic/vnic_dev.h
+++ b/drivers/net/enic/vnic_dev.h
@@ -41,6 +41,12 @@ static inline void writeq(u64 val, void __iomem *reg)
}
#endif
+enum vnic_dev_hw_version {
+ VNIC_DEV_HW_VER_UNKNOWN,
+ VNIC_DEV_HW_VER_A1,
+ VNIC_DEV_HW_VER_A2,
+};
+
enum vnic_dev_intr_mode {
VNIC_DEV_INTR_MODE_UNKNOWN,
VNIC_DEV_INTR_MODE_INTX,
@@ -75,6 +81,8 @@ unsigned int vnic_dev_get_res_count(struct vnic_dev *vdev,
enum vnic_res_type type);
void __iomem *vnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type,
unsigned int index);
+dma_addr_t vnic_dev_get_res_bus_addr(struct vnic_dev *vdev,
+ enum vnic_res_type type, unsigned int index);
unsigned int vnic_dev_desc_ring_size(struct vnic_dev_ring *ring,
unsigned int desc_count, unsigned int desc_size);
void vnic_dev_clear_desc_ring(struct vnic_dev_ring *ring);
@@ -86,6 +94,8 @@ int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
u64 *a0, u64 *a1, int wait);
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,
+ enum vnic_dev_hw_version *hw_ver);
int vnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, unsigned int size,
void *value);
int vnic_dev_stats_clear(struct vnic_dev *vdev);
@@ -96,6 +106,7 @@ void vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast,
void vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr);
void vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr);
int vnic_dev_mac_addr(struct vnic_dev *vdev, u8 *mac_addr);
+int vnic_dev_raise_intr(struct vnic_dev *vdev, u16 intr);
int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr);
void vnic_dev_notify_unset(struct vnic_dev *vdev);
int vnic_dev_link_status(struct vnic_dev *vdev);
@@ -117,6 +128,7 @@ void vnic_dev_set_intr_mode(struct vnic_dev *vdev,
enum vnic_dev_intr_mode vnic_dev_get_intr_mode(struct vnic_dev *vdev);
void vnic_dev_unregister(struct vnic_dev *vdev);
struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev,
- void *priv, struct pci_dev *pdev, struct vnic_dev_bar *bar);
+ void *priv, struct pci_dev *pdev, struct vnic_dev_bar *bar,
+ unsigned int num_bars);
#endif /* _VNIC_DEV_H_ */
diff --git a/drivers/net/enic/vnic_devcmd.h b/drivers/net/enic/vnic_devcmd.h
index 2587f34fbfb..d78bbcc1fdf 100644
--- a/drivers/net/enic/vnic_devcmd.h
+++ b/drivers/net/enic/vnic_devcmd.h
@@ -105,14 +105,6 @@ enum vnic_devcmd_cmd {
CMD_MAC_ADDR = _CMDC(_CMD_DIR_READ,
_CMD_VTYPE_ENET | _CMD_VTYPE_FC, 9),
- /* disable/enable promisc mode: (u8)a0=0/1 */
-/***** XXX DEPRECATED *****/
- CMD_PROMISC_MODE = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 10),
-
- /* disable/enable all-multi mode: (u8)a0=0/1 */
-/***** XXX DEPRECATED *****/
- CMD_ALLMULTI_MODE = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 11),
-
/* add addr from (u48)a0 */
CMD_ADDR_ADD = _CMDCNW(_CMD_DIR_WRITE,
_CMD_VTYPE_ENET | _CMD_VTYPE_FC, 12),
@@ -182,7 +174,9 @@ enum vnic_devcmd_cmd {
/* disable virtual link */
CMD_DISABLE = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 29),
- /* stats dump all vnics on uplink in mem: (u64)a0=paddr (u32)a1=uif */
+ /* stats dump sum of all vnic stats on same uplink in mem:
+ * (u64)a0=paddr
+ * (u16)a1=sizeof stats area */
CMD_STATS_DUMP_ALL = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 30),
/* init status:
@@ -211,7 +205,12 @@ enum vnic_devcmd_cmd {
/* persistent binding info
* in: (u64)a0=paddr of arg
* (u32)a1=CMD_PERBI_XXX */
- CMD_PERBI = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_FC, 37),
+ CMD_PERBI = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_FC, 37),
+
+ /* Interrupt Assert Register functionality
+ * in: (u16)a0=interrupt number to assert
+ */
+ CMD_IAR = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 38),
};
/* flags for CMD_OPEN */
@@ -244,6 +243,7 @@ enum vnic_devcmd_error {
ERR_ENOMEM = 7,
ERR_ETIMEDOUT = 8,
ERR_ELINKDOWN = 9,
+ ERR_EMAXRES = 10,
};
struct vnic_devcmd_fw_info {
diff --git a/drivers/net/enic/vnic_intr.c b/drivers/net/enic/vnic_intr.c
index ddc38f8f465..1f8786d7195 100644
--- a/drivers/net/enic/vnic_intr.c
+++ b/drivers/net/enic/vnic_intr.c
@@ -60,3 +60,8 @@ void vnic_intr_clean(struct vnic_intr *intr)
{
iowrite32(0, &intr->ctrl->int_credits);
}
+
+void vnic_intr_raise(struct vnic_intr *intr)
+{
+ vnic_dev_raise_intr(intr->vdev, (u16)intr->index);
+}
diff --git a/drivers/net/enic/vnic_nic.h b/drivers/net/enic/vnic_nic.h
index dadf26fae69..eeaf329945d 100644
--- a/drivers/net/enic/vnic_nic.h
+++ b/drivers/net/enic/vnic_nic.h
@@ -41,6 +41,13 @@
#define NIC_CFG_IG_VLAN_STRIP_EN_MASK_FIELD 1UL
#define NIC_CFG_IG_VLAN_STRIP_EN_SHIFT 24
+#define NIC_CFG_RSS_HASH_TYPE_IPV4 (1 << 0)
+#define NIC_CFG_RSS_HASH_TYPE_TCP_IPV4 (1 << 1)
+#define NIC_CFG_RSS_HASH_TYPE_IPV6 (1 << 2)
+#define NIC_CFG_RSS_HASH_TYPE_TCP_IPV6 (1 << 3)
+#define NIC_CFG_RSS_HASH_TYPE_IPV6_EX (1 << 4)
+#define NIC_CFG_RSS_HASH_TYPE_TCP_IPV6_EX (1 << 5)
+
static inline void vnic_set_nic_cfg(u32 *nic_cfg,
u8 rss_default_cpu, u8 rss_hash_type,
u8 rss_hash_bits, u8 rss_base_cpu,
diff --git a/drivers/net/enic/vnic_rq.c b/drivers/net/enic/vnic_rq.c
index 9365e63e821..75583978a5e 100644
--- a/drivers/net/enic/vnic_rq.c
+++ b/drivers/net/enic/vnic_rq.c
@@ -62,7 +62,6 @@ static int vnic_rq_alloc_bufs(struct vnic_rq *rq)
}
rq->to_use = rq->to_clean = rq->bufs[0];
- rq->buf_index = 0;
return 0;
}
@@ -113,12 +112,12 @@ int vnic_rq_alloc(struct vnic_dev *vdev, struct vnic_rq *rq, unsigned int index,
return 0;
}
-void vnic_rq_init(struct vnic_rq *rq, unsigned int cq_index,
+void vnic_rq_init_start(struct vnic_rq *rq, unsigned int cq_index,
+ unsigned int fetch_index, unsigned int posted_index,
unsigned int error_interrupt_enable,
unsigned int error_interrupt_offset)
{
u64 paddr;
- u32 fetch_index;
paddr = (u64)rq->ring.base_addr | VNIC_PADDR_TARGET;
writeq(paddr, &rq->ctrl->ring_base);
@@ -128,15 +127,27 @@ void vnic_rq_init(struct vnic_rq *rq, unsigned int cq_index,
iowrite32(error_interrupt_offset, &rq->ctrl->error_interrupt_offset);
iowrite32(0, &rq->ctrl->dropped_packet_count);
iowrite32(0, &rq->ctrl->error_status);
+ iowrite32(fetch_index, &rq->ctrl->fetch_index);
+ iowrite32(posted_index, &rq->ctrl->posted_index);
- /* 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];
- iowrite32(fetch_index, &rq->ctrl->posted_index);
+}
+
+void vnic_rq_init(struct vnic_rq *rq, unsigned int cq_index,
+ unsigned int error_interrupt_enable,
+ unsigned int error_interrupt_offset)
+{
+ u32 fetch_index;
- rq->buf_index = 0;
+ /* Use current fetch_index as the ring starting point */
+ fetch_index = ioread32(&rq->ctrl->fetch_index);
+
+ vnic_rq_init_start(rq, cq_index,
+ fetch_index, fetch_index,
+ error_interrupt_enable,
+ error_interrupt_offset);
}
unsigned int vnic_rq_error_status(struct vnic_rq *rq)
@@ -192,8 +203,6 @@ void vnic_rq_clean(struct vnic_rq *rq,
[fetch_index % VNIC_RQ_BUF_BLK_ENTRIES];
iowrite32(fetch_index, &rq->ctrl->posted_index);
- rq->buf_index = 0;
-
vnic_dev_clear_desc_ring(&rq->ring);
}
diff --git a/drivers/net/enic/vnic_rq.h b/drivers/net/enic/vnic_rq.h
index fd0ef66d2e9..35e736cc2d8 100644
--- a/drivers/net/enic/vnic_rq.h
+++ b/drivers/net/enic/vnic_rq.h
@@ -1,5 +1,5 @@
/*
- * Copyright 2008 Cisco Systems, Inc. All rights reserved.
+ * Copyright 2008, 2009 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
@@ -79,7 +79,6 @@ struct vnic_rq {
struct vnic_rq_buf *to_use;
struct vnic_rq_buf *to_clean;
void *os_buf_head;
- unsigned int buf_index;
unsigned int pkts_outstanding;
};
@@ -105,11 +104,6 @@ static inline unsigned int vnic_rq_next_index(struct vnic_rq *rq)
return rq->to_use->index;
}
-static inline unsigned int vnic_rq_next_buf_index(struct vnic_rq *rq)
-{
- return rq->buf_index++;
-}
-
static inline void vnic_rq_post(struct vnic_rq *rq,
void *os_buf, unsigned int os_buf_index,
dma_addr_t dma_addr, unsigned int len)
@@ -143,6 +137,11 @@ static inline void vnic_rq_post(struct vnic_rq *rq,
}
}
+static inline int vnic_rq_posting_soon(struct vnic_rq *rq)
+{
+ return ((rq->to_use->index & VNIC_RQ_RETURN_RATE) == 0);
+}
+
static inline void vnic_rq_return_descs(struct vnic_rq *rq, unsigned int count)
{
rq->ring.desc_avail += count;
@@ -186,7 +185,7 @@ static inline int vnic_rq_fill(struct vnic_rq *rq,
{
int err;
- while (vnic_rq_desc_avail(rq) > 1) {
+ while (vnic_rq_desc_avail(rq) > 0) {
err = (*buf_fill)(rq);
if (err)
@@ -199,6 +198,10 @@ static inline int vnic_rq_fill(struct vnic_rq *rq,
void vnic_rq_free(struct vnic_rq *rq);
int vnic_rq_alloc(struct vnic_dev *vdev, struct vnic_rq *rq, unsigned int index,
unsigned int desc_count, unsigned int desc_size);
+void vnic_rq_init_start(struct vnic_rq *rq, unsigned int cq_index,
+ unsigned int fetch_index, unsigned int posted_index,
+ unsigned int error_interrupt_enable,
+ unsigned int error_interrupt_offset);
void vnic_rq_init(struct vnic_rq *rq, unsigned int cq_index,
unsigned int error_interrupt_enable,
unsigned int error_interrupt_offset);
diff --git a/drivers/net/enic/vnic_wq.c b/drivers/net/enic/vnic_wq.c
index a576d04708e..d2e00e51b7b 100644
--- a/drivers/net/enic/vnic_wq.c
+++ b/drivers/net/enic/vnic_wq.c
@@ -112,7 +112,8 @@ int vnic_wq_alloc(struct vnic_dev *vdev, struct vnic_wq *wq, unsigned int index,
return 0;
}
-void vnic_wq_init(struct vnic_wq *wq, unsigned int cq_index,
+void vnic_wq_init_start(struct vnic_wq *wq, unsigned int cq_index,
+ unsigned int fetch_index, unsigned int posted_index,
unsigned int error_interrupt_enable,
unsigned int error_interrupt_offset)
{
@@ -121,12 +122,25 @@ void vnic_wq_init(struct vnic_wq *wq, unsigned int cq_index,
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(0, &wq->ctrl->fetch_index);
- iowrite32(0, &wq->ctrl->posted_index);
+ iowrite32(fetch_index, &wq->ctrl->fetch_index);
+ iowrite32(posted_index, &wq->ctrl->posted_index);
iowrite32(cq_index, &wq->ctrl->cq_index);
iowrite32(error_interrupt_enable, &wq->ctrl->error_interrupt_enable);
iowrite32(error_interrupt_offset, &wq->ctrl->error_interrupt_offset);
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];
+}
+
+void vnic_wq_init(struct vnic_wq *wq, unsigned int cq_index,
+ unsigned int error_interrupt_enable,
+ unsigned int error_interrupt_offset)
+{
+ vnic_wq_init_start(wq, cq_index, 0, 0,
+ error_interrupt_enable,
+ error_interrupt_offset);
}
unsigned int vnic_wq_error_status(struct vnic_wq *wq)
diff --git a/drivers/net/enic/vnic_wq.h b/drivers/net/enic/vnic_wq.h
index c826137dc65..9c34d41a887 100644
--- a/drivers/net/enic/vnic_wq.h
+++ b/drivers/net/enic/vnic_wq.h
@@ -149,6 +149,10 @@ static inline void vnic_wq_service(struct vnic_wq *wq,
void vnic_wq_free(struct vnic_wq *wq);
int vnic_wq_alloc(struct vnic_dev *vdev, struct vnic_wq *wq, unsigned int index,
unsigned int desc_count, unsigned int desc_size);
+void vnic_wq_init_start(struct vnic_wq *wq, unsigned int cq_index,
+ unsigned int fetch_index, unsigned int posted_index,
+ unsigned int error_interrupt_enable,
+ unsigned int error_interrupt_offset);
void vnic_wq_init(struct vnic_wq *wq, unsigned int cq_index,
unsigned int error_interrupt_enable,
unsigned int error_interrupt_offset);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-22 02:40:20 +0000