#include <linux/ip.h>
#include <linux/ipv6.h>
#include <linux/tcp.h>
+#include <net/ip6_checksum.h>
#include "cq_enet_desc.h"
#include "vnic_dev.h"
#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 */
};
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,
.set_sg = ethtool_op_set_sg,
.get_tso = ethtool_op_get_tso,
.set_tso = enic_set_tso,
+ .get_flags = ethtool_op_get_flags,
+ .set_flags = ethtool_op_set_flags,
};
static void enic_free_wq_buf(struct vnic_wq *wq, struct vnic_wq_buf *buf)
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]);
{
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 "
return IRQ_NONE; /* not our interrupt */
}
- if (ENIC_TEST_INTR(pba, ENIC_INTX_NOTIFY))
+ if (ENIC_TEST_INTR(pba, ENIC_INTX_NOTIFY)) {
+ vnic_intr_return_all_credits(&enic->intr[ENIC_INTX_NOTIFY]);
enic_notify_check(enic);
+ }
if (ENIC_TEST_INTR(pba, ENIC_INTX_ERR)) {
+ vnic_intr_return_all_credits(&enic->intr[ENIC_INTX_ERR]);
enic_log_q_error(enic);
/* schedule recovery from WQ/RQ error */
schedule_work(&enic->reset);
}
if (ENIC_TEST_INTR(pba, ENIC_INTX_WQ_RQ)) {
- if (netif_rx_schedule_prep(netdev, &enic->napi))
- __netif_rx_schedule(netdev, &enic->napi);
+ if (napi_schedule_prep(&enic->napi))
+ __napi_schedule(&enic->napi);
} else {
vnic_intr_unmask(&enic->intr[ENIC_INTX_WQ_RQ]);
}
* writes).
*/
- netif_rx_schedule(enic->netdev, &enic->napi);
+ napi_schedule(&enic->napi);
return IRQ_HANDLED;
}
struct enic *enic = data;
/* schedule NAPI polling for RQ cleanup */
- netif_rx_schedule(enic->netdev, &enic->napi);
+ napi_schedule(&enic->napi);
return IRQ_HANDLED;
}
{
struct enic *enic = data;
+ vnic_intr_return_all_credits(&enic->intr[ENIC_MSIX_ERR]);
+
enic_log_q_error(enic);
/* schedule recovery from WQ/RQ error */
{
struct enic *enic = data;
+ vnic_intr_return_all_credits(&enic->intr[ENIC_MSIX_NOTIFY]);
enic_notify_check(enic);
- vnic_intr_unmask(&enic->intr[ENIC_MSIX_NOTIFY]);
return IRQ_HANDLED;
}
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),
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),
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
* to each TCP segment resulting from the TSO.
*/
- if (skb->protocol == __constant_htons(ETH_P_IP)) {
+ if (skb->protocol == cpu_to_be16(ETH_P_IP)) {
ip_hdr(skb)->check = 0;
tcp_hdr(skb)->check = ~csum_tcpudp_magic(ip_hdr(skb)->saddr,
ip_hdr(skb)->daddr, 0, IPPROTO_TCP, 0);
- } else if (skb->protocol == __constant_htons(ETH_P_IPV6)) {
+ } else if (skb->protocol == cpu_to_be16(ETH_P_IPV6)) {
tcp_hdr(skb)->check = ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
&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,
vlan_tag_insert, vlan_tag);
}
-/* netif_tx_lock held, process context with BHs disabled */
-static int enic_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev)
+/* netif_tx_lock held, process context with BHs disabled, or BH */
+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];
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 "
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);
- netdev->trans_start = jiffies;
-
spin_unlock_irqrestore(&enic->wq_lock[0], flags);
return NETDEV_TX_OK;
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_crc_errors = stats->rx.rx_crc_errors;
- net_stats->rx_dropped = stats->rx.rx_no_bufs;
+ 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 + stats->rx.rx_drop;
return net_stats;
}
dev_kfree_skb_any(buf->os_buf);
}
-static inline struct sk_buff *enic_rq_alloc_skb(unsigned int size)
-{
- struct sk_buff *skb;
-
- skb = dev_alloc_skb(size + NET_IP_ALIGN);
-
- if (skb)
- skb_reserve(skb, NET_IP_ALIGN);
-
- return skb;
-}
-
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 = netdev_alloc_skb_ip_align(netdev, len);
if (!skb)
return -ENOMEM;
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)
{
int skipped, void *opaque)
{
struct enic *enic = vnic_dev_priv(rq->vdev);
+ struct net_device *netdev = enic->netdev;
struct sk_buff *skb;
u8 type, color, eop, sop, ingress_port, vlan_stripped;
if (packet_error) {
- if (bytes_written > 0 && !fcs_ok) {
- if (net_ratelimit())
- printk(KERN_ERR PFX
- "%s: packet error: bad FCS\n",
- enic->netdev->name);
+ 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);
*/
skb_put(skb, bytes_written);
- skb->protocol = eth_type_trans(skb, enic->netdev);
+ skb->protocol = eth_type_trans(skb, netdev);
if (enic->csum_rx_enabled && !csum_not_calc) {
skb->csum = htons(checksum);
skb->ip_summed = CHECKSUM_COMPLETE;
}
- skb->dev = enic->netdev;
- enic->netdev->last_rx = jiffies;
+ skb->dev = netdev;
if (enic->vlan_group && vlan_stripped) {
- if (ENIC_SETTING(enic, LRO) && ipv4)
+ if ((netdev->features & NETIF_F_LRO) && ipv4)
lro_vlan_hwaccel_receive_skb(&enic->lro_mgr,
skb, enic->vlan_group,
vlan, cq_desc);
} else {
- if (ENIC_SETTING(enic, LRO) && ipv4)
+ if ((netdev->features & NETIF_F_LRO) && ipv4)
lro_receive_skb(&enic->lro_mgr, skb, cq_desc);
else
netif_receive_skb(skb);
return 0;
}
-static void enic_rq_drop_buf(struct vnic_rq *rq,
- struct cq_desc *cq_desc, struct vnic_rq_buf *buf,
- int skipped, void *opaque)
-{
- struct enic *enic = vnic_dev_priv(rq->vdev);
- struct sk_buff *skb = buf->os_buf;
-
- if (skipped)
- return;
-
- pci_unmap_single(enic->pdev, buf->dma_addr,
- buf->len, PCI_DMA_FROMDEVICE);
-
- dev_kfree_skb_any(skb);
-}
-
-static int enic_rq_service_drop(struct vnic_dev *vdev, struct cq_desc *cq_desc,
- u8 type, u16 q_number, u16 completed_index, void *opaque)
-{
- struct enic *enic = vnic_dev_priv(vdev);
-
- vnic_rq_service(&enic->rq[q_number], cq_desc,
- completed_index, VNIC_RQ_RETURN_DESC,
- enic_rq_drop_buf, opaque);
-
- return 0;
-}
-
static int enic_poll(struct napi_struct *napi, int budget)
{
struct enic *enic = container_of(napi, struct enic, napi);
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;
+ int err;
/* Service RQ (first) and WQ
*/
0 /* don't unmask intr */,
0 /* don't reset intr timer */);
- if (rq_work_done > 0) {
+ err = vnic_rq_fill(&enic->rq[0], enic->rq_alloc_buf);
- /* Replenish RQ
- */
+ /* Buffer allocation failed. Stay in polling
+ * mode so we can try to fill the ring again.
+ */
- vnic_rq_fill(&enic->rq[0], enic_rq_alloc_buf);
+ if (err)
+ rq_work_done = rq_work_to_do;
- } else {
+ if (rq_work_done < rq_work_to_do) {
- /* If no work done, flush all LROs and exit polling
+ /* Some work done, but not enough to stay in polling,
+ * flush all LROs and exit polling
*/
- if (ENIC_SETTING(enic, LRO))
+ if (netdev->features & NETIF_F_LRO)
lro_flush_all(&enic->lro_mgr);
- netif_rx_complete(netdev, napi);
- vnic_intr_unmask(&enic->intr[ENIC_MSIX_RQ]);
+ napi_complete(napi);
+ vnic_intr_unmask(&enic->intr[ENIC_INTX_WQ_RQ]);
}
return rq_work_done;
struct net_device *netdev = enic->netdev;
unsigned int work_to_do = budget;
unsigned int work_done;
+ int err;
/* Service RQ
*/
work_done = vnic_cq_service(&enic->cq[ENIC_CQ_RQ],
work_to_do, enic_rq_service, NULL);
- if (work_done > 0) {
-
- /* Replenish RQ
- */
-
- vnic_rq_fill(&enic->rq[0], enic_rq_alloc_buf);
-
- /* Accumulate intr event credits for this polling
- * cycle. An intr event is the completion of a
- * a WQ or RQ packet.
- */
+ /* Return intr event credits for this polling
+ * cycle. An intr event is the completion of a
+ * RQ packet.
+ */
+ if (work_done > 0)
vnic_intr_return_credits(&enic->intr[ENIC_MSIX_RQ],
work_done,
0 /* don't unmask intr */,
0 /* don't reset intr timer */);
- } else {
- /* If no work done, flush all LROs and exit polling
+ err = vnic_rq_fill(&enic->rq[0], enic->rq_alloc_buf);
+
+ /* Buffer allocation failed. Stay in polling mode
+ * so we can try to fill the ring again.
+ */
+
+ if (err)
+ work_done = work_to_do;
+
+ if (work_done < work_to_do) {
+
+ /* Some work done, but not enough to stay in polling,
+ * flush all LROs and exit polling
*/
- if (ENIC_SETTING(enic, LRO))
+ if (netdev->features & NETIF_F_LRO)
lro_flush_all(&enic->lro_mgr);
- netif_rx_complete(netdev, napi);
+ napi_complete(napi);
vnic_intr_unmask(&enic->intr[ENIC_MSIX_RQ]);
}
switch (vnic_dev_get_intr_mode(enic->vdev)) {
case VNIC_DEV_INTR_MODE_INTX:
- case VNIC_DEV_INTR_MODE_MSI:
free_irq(enic->pdev->irq, netdev);
break;
+ case VNIC_DEV_INTR_MODE_MSI:
+ free_irq(enic->pdev->irq, enic);
+ break;
case VNIC_DEV_INTR_MODE_MSIX:
for (i = 0; i < ARRAY_SIZE(enic->msix); i++)
if (enic->msix[i].requested)
case VNIC_DEV_INTR_MODE_MSIX:
sprintf(enic->msix[ENIC_MSIX_RQ].devname,
- "%.11s-rx", netdev->name);
+ "%.11s-rx-0", netdev->name);
enic->msix[ENIC_MSIX_RQ].isr = enic_isr_msix_rq;
enic->msix[ENIC_MSIX_RQ].devid = enic;
sprintf(enic->msix[ENIC_MSIX_WQ].devname,
- "%.11s-tx", netdev->name);
+ "%.11s-tx-0", netdev->name);
enic->msix[ENIC_MSIX_WQ].isr = enic_isr_msix_wq;
enic->msix[ENIC_MSIX_WQ].devid = enic;
return err;
}
+static void enic_synchronize_irqs(struct enic *enic)
+{
+ unsigned int i;
+
+ switch (vnic_dev_get_intr_mode(enic->vdev)) {
+ case VNIC_DEV_INTR_MODE_INTX:
+ case VNIC_DEV_INTR_MODE_MSI:
+ synchronize_irq(enic->pdev->irq);
+ break;
+ case VNIC_DEV_INTR_MODE_MSIX:
+ for (i = 0; i < enic->intr_count; i++)
+ synchronize_irq(enic->msix_entry[i].vector);
+ break;
+ default:
+ break;
+ }
+}
+
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);
err = vnic_dev_notify_set(enic->vdev, -1 /* no intr */);
break;
}
+ spin_unlock(&enic->devcmd_lock);
return err;
}
unsigned int i;
int err;
+ err = enic_request_intr(enic);
+ if (err) {
+ printk(KERN_ERR PFX "%s: Unable to request irq.\n",
+ netdev->name);
+ return err;
+ }
+
+ err = enic_notify_set(enic);
+ if (err) {
+ printk(KERN_ERR PFX
+ "%s: Failed to alloc notify buffer, aborting.\n",
+ netdev->name);
+ goto err_out_free_intr;
+ }
+
for (i = 0; i < enic->rq_count; i++) {
- err = vnic_rq_fill(&enic->rq[i], enic_rq_alloc_buf);
- if (err) {
+ 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);
- return err;
+ err = -ENOMEM;
+ goto err_out_notify_unset;
}
}
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]);
enic_notify_timer_start(enic);
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);
+
+ return err;
}
/* rtnl lock is held, process context */
unsigned int i;
int err;
+ for (i = 0; i < enic->intr_count; i++)
+ vnic_intr_mask(&enic->intr[i]);
+
+ enic_synchronize_irqs(enic);
+
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);
-
- for (i = 0; i < enic->intr_count; i++)
- vnic_intr_mask(&enic->intr[i]);
+ netif_carrier_off(netdev);
+ netif_tx_disable(netdev);
for (i = 0; i < enic->wq_count; i++) {
err = vnic_wq_disable(&enic->wq[i]);
return err;
}
- (void)vnic_cq_service(&enic->cq[ENIC_CQ_RQ],
- -1, enic_rq_service_drop, NULL);
- (void)vnic_cq_service(&enic->cq[ENIC_CQ_WQ],
- -1, enic_wq_service, NULL);
+ spin_lock(&enic->devcmd_lock);
+ vnic_dev_notify_unset(enic->vdev);
+ spin_unlock(&enic->devcmd_lock);
+ enic_free_intr(enic);
for (i = 0; i < enic->wq_count; i++)
vnic_wq_clean(&enic->wq[i], enic_free_wq_buf);
return err;
}
+static int enic_set_niccfg(struct enic *enic)
+{
+ const u8 rss_default_cpu = 0;
+ const u8 rss_hash_type = 0;
+ const u8 rss_hash_bits = 0;
+ const u8 rss_base_cpu = 0;
+ const u8 rss_enable = 0;
+ const u8 tso_ipid_split_en = 0;
+ 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,
+ rss_hash_bits, rss_base_cpu,
+ rss_enable, tso_ipid_split_en,
+ ig_vlan_strip_en);
+}
+
static void enic_reset(struct work_struct *work)
{
struct enic *enic = container_of(work, struct enic, reset);
enic_stop(enic->netdev);
enic_dev_soft_reset(enic);
+ vnic_dev_init(enic->vdev, 0);
enic_reset_mcaddrs(enic);
enic_init_vnic_resources(enic);
+ enic_set_niccfg(enic);
enic_open(enic->netdev);
rtnl_unlock();
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
vnic_dev_set_intr_mode(enic->vdev, VNIC_DEV_INTR_MODE_UNKNOWN);
}
+static const struct net_device_ops enic_netdev_ops = {
+ .ndo_open = enic_open,
+ .ndo_stop = enic_stop,
+ .ndo_start_xmit = enic_hard_start_xmit,
+ .ndo_get_stats = enic_get_stats,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = eth_mac_addr,
+ .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,
+ .ndo_vlan_rx_kill_vid = enic_vlan_rx_kill_vid,
+ .ndo_tx_timeout = enic_tx_timeout,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = enic_poll_controller,
+#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)
{
- if (enic->bar0.vaddr)
- iounmap(enic->bar0.vaddr);
+ 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,
unsigned int i;
int err;
- const u8 rss_default_cpu = 0;
- const u8 rss_hash_type = 0;
- const u8 rss_hash_bits = 0;
- const u8 rss_base_cpu = 0;
- const u8 rss_enable = 0;
- const u8 tso_ipid_split_en = 0;
- const u8 ig_vlan_strip_en = 1;
-
/* Allocate net device structure and initialize. Private
* instance data is initialized to zero.
*/
return -ENOMEM;
}
- /* Set the netdev name early so intr vectors are properly
- * named and any error msgs can include netdev->name
- */
-
- rtnl_lock();
- err = dev_alloc_name(netdev, netdev->name);
- rtnl_unlock();
- if (err < 0) {
- printk(KERN_ERR PFX "Unable to allocate netdev name.\n");
- goto err_out_free_netdev;
- }
-
pci_set_drvdata(pdev, netdev);
SET_NETDEV_DEV(netdev, &pdev->dev);
err = pci_enable_device(pdev);
if (err) {
printk(KERN_ERR PFX
- "%s: Cannot enable PCI device, aborting.\n",
- netdev->name);
+ "Cannot enable PCI device, aborting.\n");
goto err_out_free_netdev;
}
err = pci_request_regions(pdev, DRV_NAME);
if (err) {
printk(KERN_ERR PFX
- "%s: Cannot request PCI regions, aborting.\n",
- netdev->name);
+ "Cannot request PCI regions, aborting.\n");
goto err_out_disable_device;
}
* fail to 32-bit.
*/
- err = pci_set_dma_mask(pdev, DMA_40BIT_MASK);
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(40));
if (err) {
- err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
printk(KERN_ERR PFX
- "%s: No usable DMA configuration, aborting.\n",
- netdev->name);
+ "No usable DMA configuration, aborting.\n");
goto err_out_release_regions;
}
- err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
printk(KERN_ERR PFX
- "%s: Unable to obtain 32-bit DMA "
- "for consistent allocations, aborting.\n",
- netdev->name);
+ "Unable to obtain 32-bit DMA "
+ "for consistent allocations, aborting.\n");
goto err_out_release_regions;
}
} else {
- err = pci_set_consistent_dma_mask(pdev, DMA_40BIT_MASK);
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40));
if (err) {
printk(KERN_ERR PFX
- "%s: Unable to obtain 40-bit DMA "
- "for consistent allocations, aborting.\n",
- netdev->name);
+ "Unable to obtain 40-bit DMA "
+ "for consistent allocations, aborting.\n");
goto err_out_release_regions;
}
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
- "%s: BAR0 not memory-map'able, aborting.\n",
- netdev->name);
- 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
- "%s: Cannot memory-map BAR0 res hdr, aborting.\n",
- netdev->name);
- 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
- "%s: vNIC registration failed, aborting.\n",
- netdev->name);
+ "vNIC registration failed, aborting.\n");
err = -ENODEV;
goto err_out_iounmap;
}
err = enic_dev_open(enic);
if (err) {
printk(KERN_ERR PFX
- "%s: vNIC dev open failed, aborting.\n",
- netdev->name);
+ "vNIC dev open failed, aborting.\n");
goto err_out_vnic_unregister;
}
err = vnic_dev_init(enic->vdev, 0);
if (err) {
printk(KERN_ERR PFX
- "%s: vNIC dev init failed, aborting.\n",
- netdev->name);
- goto err_out_dev_close;
- }
-
- /* Get vNIC configuration
- */
-
- err = enic_get_vnic_config(enic);
- if (err) {
- printk(KERN_ERR PFX
- "%s: Get vNIC configuration failed, aborting.\n",
- netdev->name);
+ "vNIC dev init 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
- "%s: Failed to set intr mode, aborting.\n",
- netdev->name);
- goto err_out_dev_close;
- }
-
- /* Request interrupt vector(s)
- */
-
- err = enic_request_intr(enic);
- if (err) {
- printk(KERN_ERR PFX "%s: Unable to request irq.\n",
- netdev->name);
+ "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
- "%s: Failed to alloc vNIC resources, aborting.\n",
- netdev->name);
- goto err_out_free_vnic_resources;
- }
-
- enic_init_vnic_resources(enic);
-
- /* Enable VLAN tag stripping. RSS not enabled (yet).
- */
-
- 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);
- if (err) {
- printk(KERN_ERR PFX
- "%s: Failed to config nic, aborting.\n",
- netdev->name);
- goto err_out_free_vnic_resources;
- }
-
- /* Setup notification buffer area
- */
-
- err = enic_notify_set(enic);
- if (err) {
- printk(KERN_ERR PFX
- "%s: Failed to alloc notify buffer, aborting.\n",
- netdev->name);
- goto err_out_free_vnic_resources;
- }
-
/* Setup notification timer, HW reset task, and locks
*/
err = enic_set_mac_addr(netdev, enic->mac_addr);
if (err) {
printk(KERN_ERR PFX
- "%s: Invalid MAC address, aborting.\n",
- netdev->name);
- goto err_out_notify_unset;
+ "Invalid MAC address, aborting.\n");
+ goto err_out_dev_deinit;
}
- netdev->open = enic_open;
- netdev->stop = enic_stop;
- netdev->hard_start_xmit = enic_hard_start_xmit;
- netdev->get_stats = enic_get_stats;
- netdev->set_multicast_list = enic_set_multicast_list;
- netdev->change_mtu = enic_change_mtu;
- netdev->vlan_rx_register = enic_vlan_rx_register;
- netdev->vlan_rx_add_vid = enic_vlan_rx_add_vid;
- netdev->vlan_rx_kill_vid = enic_vlan_rx_kill_vid;
- netdev->tx_timeout = enic_tx_timeout;
+ netdev->netdev_ops = &enic_netdev_ops;
netdev->watchdog_timeo = 2 * HZ;
netdev->ethtool_ops = &enic_ethtool_ops;
-#ifdef CONFIG_NET_POLL_CONTROLLER
- netdev->poll_controller = enic_poll_controller;
-#endif
- 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))
netdev->features |= NETIF_F_TSO |
NETIF_F_TSO6 | NETIF_F_TSO_ECN;
+ if (ENIC_SETTING(enic, LRO))
+ netdev->features |= NETIF_F_LRO;
if (using_dac)
netdev->features |= NETIF_F_HIGHDMA;
-
enic->csum_rx_enabled = ENIC_SETTING(enic, RXCSUM);
- if (ENIC_SETTING(enic, LRO)) {
- 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;
- }
+ 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
- "%s: Cannot register net device, aborting.\n",
- netdev->name);
- goto err_out_notify_unset;
+ "Cannot register net device, aborting.\n");
+ goto err_out_dev_deinit;
}
return 0;
-err_out_notify_unset:
- vnic_dev_notify_unset(enic->vdev);
-err_out_free_vnic_resources:
- enic_free_vnic_resources(enic);
- enic_free_intr(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);
flush_scheduled_work();
unregister_netdev(netdev);
- vnic_dev_notify_unset(enic->vdev);
- enic_free_vnic_resources(enic);
- enic_free_intr(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);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff