void e1000_down(struct e1000_adapter *adapter);
void e1000_reset(struct e1000_adapter *adapter);
int e1000_set_spd_dplx(struct e1000_adapter *adapter, uint16_t spddplx);
-int e1000_setup_tx_resources(struct e1000_adapter *adapter);
-int e1000_setup_rx_resources(struct e1000_adapter *adapter);
-void e1000_free_tx_resources(struct e1000_adapter *adapter);
-void e1000_free_rx_resources(struct e1000_adapter *adapter);
+int e1000_setup_all_tx_resources(struct e1000_adapter *adapter);
+int e1000_setup_all_rx_resources(struct e1000_adapter *adapter);
+void e1000_free_all_tx_resources(struct e1000_adapter *adapter);
+void e1000_free_all_rx_resources(struct e1000_adapter *adapter);
+int e1000_setup_tx_resources(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *txdr);
+int e1000_setup_rx_resources(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rxdr);
+void e1000_free_tx_resources(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring);
+void e1000_free_rx_resources(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring);
void e1000_update_stats(struct e1000_adapter *adapter);
/* Local Function Prototypes */
static void e1000_exit_module(void);
static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
static void __devexit e1000_remove(struct pci_dev *pdev);
+static int e1000_alloc_queues(struct e1000_adapter *adapter);
+#ifdef CONFIG_E1000_MQ
+static void e1000_setup_queue_mapping(struct e1000_adapter *adapter);
+#endif
static int e1000_sw_init(struct e1000_adapter *adapter);
static int e1000_open(struct net_device *netdev);
static int e1000_close(struct net_device *netdev);
static void e1000_configure_tx(struct e1000_adapter *adapter);
static void e1000_configure_rx(struct e1000_adapter *adapter);
static void e1000_setup_rctl(struct e1000_adapter *adapter);
-static void e1000_clean_tx_ring(struct e1000_adapter *adapter);
-static void e1000_clean_rx_ring(struct e1000_adapter *adapter);
+static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter);
+static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter);
+static void e1000_clean_tx_ring(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring);
+static void e1000_clean_rx_ring(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring);
static void e1000_set_multi(struct net_device *netdev);
static void e1000_update_phy_info(unsigned long data);
static void e1000_watchdog(unsigned long data);
static int e1000_change_mtu(struct net_device *netdev, int new_mtu);
static int e1000_set_mac(struct net_device *netdev, void *p);
static irqreturn_t e1000_intr(int irq, void *data, struct pt_regs *regs);
-static boolean_t e1000_clean_tx_irq(struct e1000_adapter *adapter);
+static boolean_t e1000_clean_tx_irq(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring);
#ifdef CONFIG_E1000_NAPI
-static int e1000_clean(struct net_device *netdev, int *budget);
+static int e1000_clean(struct net_device *poll_dev, int *budget);
static boolean_t e1000_clean_rx_irq(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring,
int *work_done, int work_to_do);
static boolean_t e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring,
int *work_done, int work_to_do);
#else
-static boolean_t e1000_clean_rx_irq(struct e1000_adapter *adapter);
-static boolean_t e1000_clean_rx_irq_ps(struct e1000_adapter *adapter);
+static boolean_t e1000_clean_rx_irq(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring);
+static boolean_t e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring);
#endif
-static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter);
-static void e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter);
+static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring);
+static void e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring);
static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr,
int cmd);
static void e1000_netpoll (struct net_device *netdev);
#endif
+#ifdef CONFIG_E1000_MQ
+/* for multiple Rx queues */
+void e1000_rx_schedule(void *data);
+#endif
+
/* Exported from other modules */
extern void e1000_check_options(struct e1000_adapter *adapter);
e1000_up(struct e1000_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
- int err;
+ int i, err;
/* hardware has been reset, we need to reload some things */
e1000_configure_tx(adapter);
e1000_setup_rctl(adapter);
e1000_configure_rx(adapter);
- adapter->alloc_rx_buf(adapter);
+ for (i = 0; i < adapter->num_queues; i++)
+ adapter->alloc_rx_buf(adapter, &adapter->rx_ring[i]);
#ifdef CONFIG_PCI_MSI
if(adapter->hw.mac_type > e1000_82547_rev_2) {
struct net_device *netdev = adapter->netdev;
e1000_irq_disable(adapter);
+#ifdef CONFIG_E1000_MQ
+ while (atomic_read(&adapter->rx_sched_call_data.count) != 0);
+#endif
free_irq(adapter->pdev->irq, netdev);
#ifdef CONFIG_PCI_MSI
if(adapter->hw.mac_type > e1000_82547_rev_2 &&
netif_stop_queue(netdev);
e1000_reset(adapter);
- e1000_clean_tx_ring(adapter);
- e1000_clean_rx_ring(adapter);
+ e1000_clean_all_tx_rings(adapter);
+ e1000_clean_all_rx_rings(adapter);
/* If WoL is not enabled
* and management mode is not IAMT
case e1000_82547_rev_2:
pba = E1000_PBA_30K;
break;
+ case e1000_82571:
+ case e1000_82572:
+ pba = E1000_PBA_38K;
+ break;
case e1000_82573:
pba = E1000_PBA_12K;
break;
struct net_device *netdev;
struct e1000_adapter *adapter;
unsigned long mmio_start, mmio_len;
+ uint32_t ctrl_ext;
uint32_t swsm;
static int cards_found = 0;
/* Let firmware know the driver has taken over */
switch(adapter->hw.mac_type) {
+ case e1000_82571:
+ case e1000_82572:
+ ctrl_ext = E1000_READ_REG(&adapter->hw, CTRL_EXT);
+ E1000_WRITE_REG(&adapter->hw, CTRL_EXT,
+ ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
+ break;
case e1000_82573:
swsm = E1000_READ_REG(&adapter->hw, SWSM);
E1000_WRITE_REG(&adapter->hw, SWSM,
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct e1000_adapter *adapter = netdev_priv(netdev);
+ uint32_t ctrl_ext;
uint32_t manc, swsm;
flush_scheduled_work();
+#ifdef CONFIG_E1000_NAPI
+ int i;
+#endif
if(adapter->hw.mac_type >= e1000_82540 &&
adapter->hw.media_type == e1000_media_type_copper) {
}
switch(adapter->hw.mac_type) {
+ case e1000_82571:
+ case e1000_82572:
+ ctrl_ext = E1000_READ_REG(&adapter->hw, CTRL_EXT);
+ E1000_WRITE_REG(&adapter->hw, CTRL_EXT,
+ ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
+ break;
case e1000_82573:
swsm = E1000_READ_REG(&adapter->hw, SWSM);
E1000_WRITE_REG(&adapter->hw, SWSM,
}
unregister_netdev(netdev);
+#ifdef CONFIG_E1000_NAPI
+ for (i = 0; i < adapter->num_queues; i++)
+ __dev_put(&adapter->polling_netdev[i]);
+#endif
if(!e1000_check_phy_reset_block(&adapter->hw))
e1000_phy_hw_reset(&adapter->hw);
+ kfree(adapter->tx_ring);
+ kfree(adapter->rx_ring);
+#ifdef CONFIG_E1000_NAPI
+ kfree(adapter->polling_netdev);
+#endif
+
iounmap(adapter->hw.hw_addr);
pci_release_regions(pdev);
+#ifdef CONFIG_E1000_MQ
+ free_percpu(adapter->cpu_netdev);
+ free_percpu(adapter->cpu_tx_ring);
+#endif
free_netdev(netdev);
pci_disable_device(pdev);
struct e1000_hw *hw = &adapter->hw;
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
+#ifdef CONFIG_E1000_NAPI
+ int i;
+#endif
/* PCI config space info */
hw->master_slave = E1000_MASTER_SLAVE;
}
+#ifdef CONFIG_E1000_MQ
+ /* Number of supported queues */
+ switch (hw->mac_type) {
+ case e1000_82571:
+ case e1000_82572:
+ adapter->num_queues = 2;
+ break;
+ default:
+ adapter->num_queues = 1;
+ break;
+ }
+ adapter->num_queues = min(adapter->num_queues, num_online_cpus());
+#else
+ adapter->num_queues = 1;
+#endif
+
+ if (e1000_alloc_queues(adapter)) {
+ DPRINTK(PROBE, ERR, "Unable to allocate memory for queues\n");
+ return -ENOMEM;
+ }
+
+#ifdef CONFIG_E1000_NAPI
+ for (i = 0; i < adapter->num_queues; i++) {
+ adapter->polling_netdev[i].priv = adapter;
+ adapter->polling_netdev[i].poll = &e1000_clean;
+ adapter->polling_netdev[i].weight = 64;
+ dev_hold(&adapter->polling_netdev[i]);
+ set_bit(__LINK_STATE_START, &adapter->polling_netdev[i].state);
+ }
+#endif
+
+#ifdef CONFIG_E1000_MQ
+ e1000_setup_queue_mapping(adapter);
+#endif
+
atomic_set(&adapter->irq_sem, 1);
spin_lock_init(&adapter->stats_lock);
- spin_lock_init(&adapter->tx_lock);
return 0;
}
/**
+ * e1000_alloc_queues - Allocate memory for all rings
+ * @adapter: board private structure to initialize
+ *
+ * We allocate one ring per queue at run-time since we don't know the
+ * number of queues at compile-time. The polling_netdev array is
+ * intended for Multiqueue, but should work fine with a single queue.
+ **/
+
+static int __devinit
+e1000_alloc_queues(struct e1000_adapter *adapter)
+{
+ int size;
+
+ size = sizeof(struct e1000_tx_ring) * adapter->num_queues;
+ adapter->tx_ring = kmalloc(size, GFP_KERNEL);
+ if (!adapter->tx_ring)
+ return -ENOMEM;
+ memset(adapter->tx_ring, 0, size);
+
+ size = sizeof(struct e1000_rx_ring) * adapter->num_queues;
+ adapter->rx_ring = kmalloc(size, GFP_KERNEL);
+ if (!adapter->rx_ring) {
+ kfree(adapter->tx_ring);
+ return -ENOMEM;
+ }
+ memset(adapter->rx_ring, 0, size);
+
+#ifdef CONFIG_E1000_NAPI
+ size = sizeof(struct net_device) * adapter->num_queues;
+ adapter->polling_netdev = kmalloc(size, GFP_KERNEL);
+ if (!adapter->polling_netdev) {
+ kfree(adapter->tx_ring);
+ kfree(adapter->rx_ring);
+ return -ENOMEM;
+ }
+ memset(adapter->polling_netdev, 0, size);
+#endif
+
+ return E1000_SUCCESS;
+}
+
+#ifdef CONFIG_E1000_MQ
+static void __devinit
+e1000_setup_queue_mapping(struct e1000_adapter *adapter)
+{
+ int i, cpu;
+
+ adapter->rx_sched_call_data.func = e1000_rx_schedule;
+ adapter->rx_sched_call_data.info = adapter->netdev;
+ cpus_clear(adapter->rx_sched_call_data.cpumask);
+
+ adapter->cpu_netdev = alloc_percpu(struct net_device *);
+ adapter->cpu_tx_ring = alloc_percpu(struct e1000_tx_ring *);
+
+ lock_cpu_hotplug();
+ i = 0;
+ for_each_online_cpu(cpu) {
+ *per_cpu_ptr(adapter->cpu_tx_ring, cpu) = &adapter->tx_ring[i % adapter->num_queues];
+ /* This is incomplete because we'd like to assign separate
+ * physical cpus to these netdev polling structures and
+ * avoid saturating a subset of cpus.
+ */
+ if (i < adapter->num_queues) {
+ *per_cpu_ptr(adapter->cpu_netdev, cpu) = &adapter->polling_netdev[i];
+ adapter->cpu_for_queue[i] = cpu;
+ } else
+ *per_cpu_ptr(adapter->cpu_netdev, cpu) = NULL;
+
+ i++;
+ }
+ unlock_cpu_hotplug();
+}
+#endif
+
+/**
* e1000_open - Called when a network interface is made active
* @netdev: network interface device structure
*
/* allocate transmit descriptors */
- if((err = e1000_setup_tx_resources(adapter)))
+ if ((err = e1000_setup_all_tx_resources(adapter)))
goto err_setup_tx;
/* allocate receive descriptors */
- if((err = e1000_setup_rx_resources(adapter)))
+ if ((err = e1000_setup_all_rx_resources(adapter)))
goto err_setup_rx;
if((err = e1000_up(adapter)))
return E1000_SUCCESS;
err_up:
- e1000_free_rx_resources(adapter);
+ e1000_free_all_rx_resources(adapter);
err_setup_rx:
- e1000_free_tx_resources(adapter);
+ e1000_free_all_tx_resources(adapter);
err_setup_tx:
e1000_reset(adapter);
e1000_down(adapter);
- e1000_free_tx_resources(adapter);
- e1000_free_rx_resources(adapter);
+ e1000_free_all_tx_resources(adapter);
+ e1000_free_all_rx_resources(adapter);
if((adapter->hw.mng_cookie.status &
E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) {
/**
* e1000_setup_tx_resources - allocate Tx resources (Descriptors)
* @adapter: board private structure
+ * @txdr: tx descriptor ring (for a specific queue) to setup
*
* Return 0 on success, negative on failure
**/
int
-e1000_setup_tx_resources(struct e1000_adapter *adapter)
+e1000_setup_tx_resources(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *txdr)
{
- struct e1000_desc_ring *txdr = &adapter->tx_ring;
struct pci_dev *pdev = adapter->pdev;
int size;
}
/**
+ * e1000_setup_all_tx_resources - wrapper to allocate Tx resources
+ * (Descriptors) for all queues
+ * @adapter: board private structure
+ *
+ * If this function returns with an error, then it's possible one or
+ * more of the rings is populated (while the rest are not). It is the
+ * callers duty to clean those orphaned rings.
+ *
+ * Return 0 on success, negative on failure
+ **/
+
+int
+e1000_setup_all_tx_resources(struct e1000_adapter *adapter)
+{
+ int i, err = 0;
+
+ for (i = 0; i < adapter->num_queues; i++) {
+ err = e1000_setup_tx_resources(adapter, &adapter->tx_ring[i]);
+ if (err) {
+ DPRINTK(PROBE, ERR,
+ "Allocation for Tx Queue %u failed\n", i);
+ break;
+ }
+ }
+
+ return err;
+}
+
+/**
* e1000_configure_tx - Configure 8254x Transmit Unit after Reset
* @adapter: board private structure
*
static void
e1000_configure_tx(struct e1000_adapter *adapter)
{
- uint64_t tdba = adapter->tx_ring.dma;
- uint32_t tdlen = adapter->tx_ring.count * sizeof(struct e1000_tx_desc);
- uint32_t tctl, tipg;
-
- E1000_WRITE_REG(&adapter->hw, TDBAL, (tdba & 0x00000000ffffffffULL));
- E1000_WRITE_REG(&adapter->hw, TDBAH, (tdba >> 32));
-
- E1000_WRITE_REG(&adapter->hw, TDLEN, tdlen);
+ uint64_t tdba;
+ struct e1000_hw *hw = &adapter->hw;
+ uint32_t tdlen, tctl, tipg, tarc;
/* Setup the HW Tx Head and Tail descriptor pointers */
- E1000_WRITE_REG(&adapter->hw, TDH, 0);
- E1000_WRITE_REG(&adapter->hw, TDT, 0);
+ switch (adapter->num_queues) {
+ case 2:
+ tdba = adapter->tx_ring[1].dma;
+ tdlen = adapter->tx_ring[1].count *
+ sizeof(struct e1000_tx_desc);
+ E1000_WRITE_REG(hw, TDBAL1, (tdba & 0x00000000ffffffffULL));
+ E1000_WRITE_REG(hw, TDBAH1, (tdba >> 32));
+ E1000_WRITE_REG(hw, TDLEN1, tdlen);
+ E1000_WRITE_REG(hw, TDH1, 0);
+ E1000_WRITE_REG(hw, TDT1, 0);
+ adapter->tx_ring[1].tdh = E1000_TDH1;
+ adapter->tx_ring[1].tdt = E1000_TDT1;
+ /* Fall Through */
+ case 1:
+ default:
+ tdba = adapter->tx_ring[0].dma;
+ tdlen = adapter->tx_ring[0].count *
+ sizeof(struct e1000_tx_desc);
+ E1000_WRITE_REG(hw, TDBAL, (tdba & 0x00000000ffffffffULL));
+ E1000_WRITE_REG(hw, TDBAH, (tdba >> 32));
+ E1000_WRITE_REG(hw, TDLEN, tdlen);
+ E1000_WRITE_REG(hw, TDH, 0);
+ E1000_WRITE_REG(hw, TDT, 0);
+ adapter->tx_ring[0].tdh = E1000_TDH;
+ adapter->tx_ring[0].tdt = E1000_TDT;
+ break;
+ }
/* Set the default values for the Tx Inter Packet Gap timer */
- switch (adapter->hw.mac_type) {
+ switch (hw->mac_type) {
case e1000_82542_rev2_0:
case e1000_82542_rev2_1:
tipg = DEFAULT_82542_TIPG_IPGT;
tipg |= DEFAULT_82542_TIPG_IPGR2 << E1000_TIPG_IPGR2_SHIFT;
break;
default:
- if(adapter->hw.media_type == e1000_media_type_fiber ||
- adapter->hw.media_type == e1000_media_type_internal_serdes)
+ if (hw->media_type == e1000_media_type_fiber ||
+ hw->media_type == e1000_media_type_internal_serdes)
tipg = DEFAULT_82543_TIPG_IPGT_FIBER;
else
tipg = DEFAULT_82543_TIPG_IPGT_COPPER;
tipg |= DEFAULT_82543_TIPG_IPGR1 << E1000_TIPG_IPGR1_SHIFT;
tipg |= DEFAULT_82543_TIPG_IPGR2 << E1000_TIPG_IPGR2_SHIFT;
}
- E1000_WRITE_REG(&adapter->hw, TIPG, tipg);
+ E1000_WRITE_REG(hw, TIPG, tipg);
/* Set the Tx Interrupt Delay register */
- E1000_WRITE_REG(&adapter->hw, TIDV, adapter->tx_int_delay);
- if(adapter->hw.mac_type >= e1000_82540)
- E1000_WRITE_REG(&adapter->hw, TADV, adapter->tx_abs_int_delay);
+ E1000_WRITE_REG(hw, TIDV, adapter->tx_int_delay);
+ if (hw->mac_type >= e1000_82540)
+ E1000_WRITE_REG(hw, TADV, adapter->tx_abs_int_delay);
/* Program the Transmit Control Register */
- tctl = E1000_READ_REG(&adapter->hw, TCTL);
+ tctl = E1000_READ_REG(hw, TCTL);
tctl &= ~E1000_TCTL_CT;
- tctl |= E1000_TCTL_EN | E1000_TCTL_PSP |
+ tctl |= E1000_TCTL_EN | E1000_TCTL_PSP | E1000_TCTL_RTLC |
(E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT);
- E1000_WRITE_REG(&adapter->hw, TCTL, tctl);
+ E1000_WRITE_REG(hw, TCTL, tctl);
- e1000_config_collision_dist(&adapter->hw);
+ e1000_config_collision_dist(hw);
/* Setup Transmit Descriptor Settings for eop descriptor */
adapter->txd_cmd = E1000_TXD_CMD_IDE | E1000_TXD_CMD_EOP |
E1000_TXD_CMD_IFCS;
- if(adapter->hw.mac_type < e1000_82543)
+ if (hw->mac_type < e1000_82543)
adapter->txd_cmd |= E1000_TXD_CMD_RPS;
else
adapter->txd_cmd |= E1000_TXD_CMD_RS;
/* Cache if we're 82544 running in PCI-X because we'll
* need this to apply a workaround later in the send path. */
- if(adapter->hw.mac_type == e1000_82544 &&
- adapter->hw.bus_type == e1000_bus_type_pcix)
+ if (hw->mac_type == e1000_82544 &&
+ hw->bus_type == e1000_bus_type_pcix)
adapter->pcix_82544 = 1;
}
/**
* e1000_setup_rx_resources - allocate Rx resources (Descriptors)
* @adapter: board private structure
+ * @rxdr: rx descriptor ring (for a specific queue) to setup
*
* Returns 0 on success, negative on failure
**/
int
-e1000_setup_rx_resources(struct e1000_adapter *adapter)
+e1000_setup_rx_resources(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rxdr)
{
- struct e1000_desc_ring *rxdr = &adapter->rx_ring;
struct pci_dev *pdev = adapter->pdev;
int size, desc_len;
size = sizeof(struct e1000_buffer) * rxdr->count;
rxdr->buffer_info = vmalloc(size);
- if(!rxdr->buffer_info) {
+ if (!rxdr->buffer_info) {
DPRINTK(PROBE, ERR,
"Unable to allocate memory for the receive descriptor ring\n");
return -ENOMEM;
rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma);
- if(!rxdr->desc) {
+ if (!rxdr->desc) {
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate memory for the receive descriptor ring\n");
setup_rx_desc_die:
vfree(rxdr->buffer_info);
kfree(rxdr->ps_page);
kfree(rxdr->ps_page_dma);
- DPRINTK(PROBE, ERR,
- "Unable to allocate memory for the receive descriptor ring\n");
return -ENOMEM;
}
"at %p\n", rxdr->size, rxdr->desc);
/* Try again, without freeing the previous */
rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma);
- if(!rxdr->desc) {
/* Failed allocation, critical failure */
+ if (!rxdr->desc) {
pci_free_consistent(pdev, rxdr->size, olddesc, olddma);
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate memory "
+ "for the receive descriptor ring\n");
goto setup_rx_desc_die;
}
DPRINTK(PROBE, ERR,
"Unable to allocate aligned memory "
"for the receive descriptor ring\n");
- vfree(rxdr->buffer_info);
- kfree(rxdr->ps_page);
- kfree(rxdr->ps_page_dma);
- return -ENOMEM;
+ goto setup_rx_desc_die;
} else {
/* Free old allocation, new allocation was successful */
pci_free_consistent(pdev, rxdr->size, olddesc, olddma);
}
/**
+ * e1000_setup_all_rx_resources - wrapper to allocate Rx resources
+ * (Descriptors) for all queues
+ * @adapter: board private structure
+ *
+ * If this function returns with an error, then it's possible one or
+ * more of the rings is populated (while the rest are not). It is the
+ * callers duty to clean those orphaned rings.
+ *
+ * Return 0 on success, negative on failure
+ **/
+
+int
+e1000_setup_all_rx_resources(struct e1000_adapter *adapter)
+{
+ int i, err = 0;
+
+ for (i = 0; i < adapter->num_queues; i++) {
+ err = e1000_setup_rx_resources(adapter, &adapter->rx_ring[i]);
+ if (err) {
+ DPRINTK(PROBE, ERR,
+ "Allocation for Rx Queue %u failed\n", i);
+ break;
+ }
+ }
+
+ return err;
+}
+
+/**
* e1000_setup_rctl - configure the receive control registers
* @adapter: Board private structure
**/
rctl |= E1000_RCTL_LPE;
/* Setup buffer sizes */
- if(adapter->hw.mac_type == e1000_82573) {
+ if(adapter->hw.mac_type >= e1000_82571) {
/* We can now specify buffers in 1K increments.
* BSIZE and BSEX are ignored in this case. */
rctl |= adapter->rx_buffer_len << 0x11;
static void
e1000_configure_rx(struct e1000_adapter *adapter)
{
- uint64_t rdba = adapter->rx_ring.dma;
- uint32_t rdlen, rctl, rxcsum;
+ uint64_t rdba;
+ struct e1000_hw *hw = &adapter->hw;
+ uint32_t rdlen, rctl, rxcsum, ctrl_ext;
+#ifdef CONFIG_E1000_MQ
+ uint32_t reta, mrqc;
+ int i;
+#endif
if(adapter->rx_ps) {
- rdlen = adapter->rx_ring.count *
+ rdlen = adapter->rx_ring[0].count *
sizeof(union e1000_rx_desc_packet_split);
adapter->clean_rx = e1000_clean_rx_irq_ps;
adapter->alloc_rx_buf = e1000_alloc_rx_buffers_ps;
} else {
- rdlen = adapter->rx_ring.count * sizeof(struct e1000_rx_desc);
+ rdlen = adapter->rx_ring[0].count *
+ sizeof(struct e1000_rx_desc);
adapter->clean_rx = e1000_clean_rx_irq;
adapter->alloc_rx_buf = e1000_alloc_rx_buffers;
}
/* disable receives while setting up the descriptors */
- rctl = E1000_READ_REG(&adapter->hw, RCTL);
- E1000_WRITE_REG(&adapter->hw, RCTL, rctl & ~E1000_RCTL_EN);
+ rctl = E1000_READ_REG(hw, RCTL);
+ E1000_WRITE_REG(hw, RCTL, rctl & ~E1000_RCTL_EN);
/* set the Receive Delay Timer Register */
- E1000_WRITE_REG(&adapter->hw, RDTR, adapter->rx_int_delay);
+ E1000_WRITE_REG(hw, RDTR, adapter->rx_int_delay);
- if(adapter->hw.mac_type >= e1000_82540) {
- E1000_WRITE_REG(&adapter->hw, RADV, adapter->rx_abs_int_delay);
+ if (hw->mac_type >= e1000_82540) {
+ E1000_WRITE_REG(hw, RADV, adapter->rx_abs_int_delay);
if(adapter->itr > 1)
- E1000_WRITE_REG(&adapter->hw, ITR,
+ E1000_WRITE_REG(hw, ITR,
1000000000 / (adapter->itr * 256));
}
- /* Setup the Base and Length of the Rx Descriptor Ring */
- E1000_WRITE_REG(&adapter->hw, RDBAL, (rdba & 0x00000000ffffffffULL));
- E1000_WRITE_REG(&adapter->hw, RDBAH, (rdba >> 32));
+ /* Setup the HW Rx Head and Tail Descriptor Pointers and
+ * the Base and Length of the Rx Descriptor Ring */
+ switch (adapter->num_queues) {
+#ifdef CONFIG_E1000_MQ
+ case 2:
+ rdba = adapter->rx_ring[1].dma;
+ E1000_WRITE_REG(hw, RDBAL1, (rdba & 0x00000000ffffffffULL));
+ E1000_WRITE_REG(hw, RDBAH1, (rdba >> 32));
+ E1000_WRITE_REG(hw, RDLEN1, rdlen);
+ E1000_WRITE_REG(hw, RDH1, 0);
+ E1000_WRITE_REG(hw, RDT1, 0);
+ adapter->rx_ring[1].rdh = E1000_RDH1;
+ adapter->rx_ring[1].rdt = E1000_RDT1;
+ /* Fall Through */
+#endif
+ case 1:
+ default:
+ rdba = adapter->rx_ring[0].dma;
+ E1000_WRITE_REG(hw, RDBAL, (rdba & 0x00000000ffffffffULL));
+ E1000_WRITE_REG(hw, RDBAH, (rdba >> 32));
+ E1000_WRITE_REG(hw, RDLEN, rdlen);
+ E1000_WRITE_REG(hw, RDH, 0);
+ E1000_WRITE_REG(hw, RDT, 0);
+ adapter->rx_ring[0].rdh = E1000_RDH;
+ adapter->rx_ring[0].rdt = E1000_RDT;
+ break;
+ }
+
+#ifdef CONFIG_E1000_MQ
+ if (adapter->num_queues > 1) {
+ uint32_t random[10];
+
+ get_random_bytes(&random[0], 40);
+
+ if (hw->mac_type <= e1000_82572) {
+ E1000_WRITE_REG(hw, RSSIR, 0);
+ E1000_WRITE_REG(hw, RSSIM, 0);
+ }
+
+ switch (adapter->num_queues) {
+ case 2:
+ default:
+ reta = 0x00800080;
+ mrqc = E1000_MRQC_ENABLE_RSS_2Q;
+ break;
+ }
+
+ /* Fill out redirection table */
+ for (i = 0; i < 32; i++)
+ E1000_WRITE_REG_ARRAY(hw, RETA, i, reta);
+ /* Fill out hash function seeds */
+ for (i = 0; i < 10; i++)
+ E1000_WRITE_REG_ARRAY(hw, RSSRK, i, random[i]);
+
+ mrqc |= (E1000_MRQC_RSS_FIELD_IPV4 |
+ E1000_MRQC_RSS_FIELD_IPV4_TCP);
+ E1000_WRITE_REG(hw, MRQC, mrqc);
+ }
- E1000_WRITE_REG(&adapter->hw, RDLEN, rdlen);
+ /* Multiqueue and packet checksumming are mutually exclusive. */
+ if (hw->mac_type >= e1000_82571) {
+ rxcsum = E1000_READ_REG(hw, RXCSUM);
+ rxcsum |= E1000_RXCSUM_PCSD;
+ E1000_WRITE_REG(hw, RXCSUM, rxcsum);
+ }
- /* Setup the HW Rx Head and Tail Descriptor Pointers */
- E1000_WRITE_REG(&adapter->hw, RDH, 0);
- E1000_WRITE_REG(&adapter->hw, RDT, 0);
+#else
/* Enable 82543 Receive Checksum Offload for TCP and UDP */
- if(adapter->hw.mac_type >= e1000_82543) {
- rxcsum = E1000_READ_REG(&adapter->hw, RXCSUM);
+ if (hw->mac_type >= e1000_82543) {
+ rxcsum = E1000_READ_REG(hw, RXCSUM);
if(adapter->rx_csum == TRUE) {
rxcsum |= E1000_RXCSUM_TUOFL;
- /* Enable 82573 IPv4 payload checksum for UDP fragments
+ /* Enable 82571 IPv4 payload checksum for UDP fragments
* Must be used in conjunction with packet-split. */
if((adapter->hw.mac_type > e1000_82547_rev_2) &&
(adapter->rx_ps)) {
rxcsum &= ~E1000_RXCSUM_TUOFL;
/* don't need to clear IPPCSE as it defaults to 0 */
}
- E1000_WRITE_REG(&adapter->hw, RXCSUM, rxcsum);
+ E1000_WRITE_REG(hw, RXCSUM, rxcsum);
}
+#endif /* CONFIG_E1000_MQ */
- if (adapter->hw.mac_type == e1000_82573)
- E1000_WRITE_REG(&adapter->hw, ERT, 0x0100);
+ if (hw->mac_type == e1000_82573)
+ E1000_WRITE_REG(hw, ERT, 0x0100);
/* Enable Receives */
- E1000_WRITE_REG(&adapter->hw, RCTL, rctl);
+ E1000_WRITE_REG(hw, RCTL, rctl);
}
/**
- * e1000_free_tx_resources - Free Tx Resources
+ * e1000_free_tx_resources - Free Tx Resources per Queue
* @adapter: board private structure
+ * @tx_ring: Tx descriptor ring for a specific queue
*
* Free all transmit software resources
**/
void
-e1000_free_tx_resources(struct e1000_adapter *adapter)
+e1000_free_tx_resources(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring)
{
struct pci_dev *pdev = adapter->pdev;
- e1000_clean_tx_ring(adapter);
+ e1000_clean_tx_ring(adapter, tx_ring);
- vfree(adapter->tx_ring.buffer_info);
- adapter->tx_ring.buffer_info = NULL;
+ vfree(tx_ring->buffer_info);
+ tx_ring->buffer_info = NULL;
- pci_free_consistent(pdev, adapter->tx_ring.size,
- adapter->tx_ring.desc, adapter->tx_ring.dma);
+ pci_free_consistent(pdev, tx_ring->size, tx_ring->desc, tx_ring->dma);
- adapter->tx_ring.desc = NULL;
+ tx_ring->desc = NULL;
+}
+
+/**
+ * e1000_free_all_tx_resources - Free Tx Resources for All Queues
+ * @adapter: board private structure
+ *
+ * Free all transmit software resources
+ **/
+
+void
+e1000_free_all_tx_resources(struct e1000_adapter *adapter)
+{
+ int i;
+
+ for (i = 0; i < adapter->num_queues; i++)
+ e1000_free_tx_resources(adapter, &adapter->tx_ring[i]);
}
static inline void
/**
* e1000_clean_tx_ring - Free Tx Buffers
* @adapter: board private structure
+ * @tx_ring: ring to be cleaned
**/
static void
-e1000_clean_tx_ring(struct e1000_adapter *adapter)
+e1000_clean_tx_ring(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring)
{
- struct e1000_desc_ring *tx_ring = &adapter->tx_ring;
struct e1000_buffer *buffer_info;
unsigned long size;
unsigned int i;
/* Free all the Tx ring sk_buffs */
- if (likely(adapter->previous_buffer_info.skb != NULL)) {
+ if (likely(tx_ring->previous_buffer_info.skb != NULL)) {
e1000_unmap_and_free_tx_resource(adapter,
- &adapter->previous_buffer_info);
+ &tx_ring->previous_buffer_info);
}
for(i = 0; i < tx_ring->count; i++) {
tx_ring->next_to_use = 0;
tx_ring->next_to_clean = 0;
- E1000_WRITE_REG(&adapter->hw, TDH, 0);
- E1000_WRITE_REG(&adapter->hw, TDT, 0);
+ writel(0, adapter->hw.hw_addr + tx_ring->tdh);
+ writel(0, adapter->hw.hw_addr + tx_ring->tdt);
+}
+
+/**
+ * e1000_clean_all_tx_rings - Free Tx Buffers for all queues
+ * @adapter: board private structure
+ **/
+
+static void
+e1000_clean_all_tx_rings(struct e1000_adapter *adapter)
+{
+ int i;
+
+ for (i = 0; i < adapter->num_queues; i++)
+ e1000_clean_tx_ring(adapter, &adapter->tx_ring[i]);
}
/**
* e1000_free_rx_resources - Free Rx Resources
* @adapter: board private structure
+ * @rx_ring: ring to clean the resources from
*
* Free all receive software resources
**/
void
-e1000_free_rx_resources(struct e1000_adapter *adapter)
+e1000_free_rx_resources(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring)
{
- struct e1000_desc_ring *rx_ring = &adapter->rx_ring;
struct pci_dev *pdev = adapter->pdev;
- e1000_clean_rx_ring(adapter);
+ e1000_clean_rx_ring(adapter, rx_ring);
vfree(rx_ring->buffer_info);
rx_ring->buffer_info = NULL;
}
/**
- * e1000_clean_rx_ring - Free Rx Buffers
+ * e1000_free_all_rx_resources - Free Rx Resources for All Queues
* @adapter: board private structure
+ *
+ * Free all receive software resources
+ **/
+
+void
+e1000_free_all_rx_resources(struct e1000_adapter *adapter)
+{
+ int i;
+
+ for (i = 0; i < adapter->num_queues; i++)
+ e1000_free_rx_resources(adapter, &adapter->rx_ring[i]);
+}
+
+/**
+ * e1000_clean_rx_ring - Free Rx Buffers per Queue
+ * @adapter: board private structure
+ * @rx_ring: ring to free buffers from
**/
static void
-e1000_clean_rx_ring(struct e1000_adapter *adapter)
+e1000_clean_rx_ring(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring)
{
- struct e1000_desc_ring *rx_ring = &adapter->rx_ring;
struct e1000_buffer *buffer_info;
struct e1000_ps_page *ps_page;
struct e1000_ps_page_dma *ps_page_dma;
rx_ring->next_to_clean = 0;
rx_ring->next_to_use = 0;
- E1000_WRITE_REG(&adapter->hw, RDH, 0);
- E1000_WRITE_REG(&adapter->hw, RDT, 0);
+ writel(0, adapter->hw.hw_addr + rx_ring->rdh);
+ writel(0, adapter->hw.hw_addr + rx_ring->rdt);
+}
+
+/**
+ * e1000_clean_all_rx_rings - Free Rx Buffers for all queues
+ * @adapter: board private structure
+ **/
+
+static void
+e1000_clean_all_rx_rings(struct e1000_adapter *adapter)
+{
+ int i;
+
+ for (i = 0; i < adapter->num_queues; i++)
+ e1000_clean_rx_ring(adapter, &adapter->rx_ring[i]);
}
/* The 82542 2.0 (revision 2) needs to have the receive unit in reset
mdelay(5);
if(netif_running(netdev))
- e1000_clean_rx_ring(adapter);
+ e1000_clean_all_rx_rings(adapter);
}
static void
if(netif_running(netdev)) {
e1000_configure_rx(adapter);
- e1000_alloc_rx_buffers(adapter);
+ e1000_alloc_rx_buffers(adapter, &adapter->rx_ring[0]);
}
}
e1000_rar_set(&adapter->hw, adapter->hw.mac_addr, 0);
+ /* With 82571 controllers, LAA may be overwritten (with the default)
+ * due to controller reset from the other port. */
+ if (adapter->hw.mac_type == e1000_82571) {
+ /* activate the work around */
+ adapter->hw.laa_is_present = 1;
+
+ /* Hold a copy of the LAA in RAR[14] This is done so that
+ * between the time RAR[0] gets clobbered and the time it
+ * gets fixed (in e1000_watchdog), the actual LAA is in one
+ * of the RARs and no incoming packets directed to this port
+ * are dropped. Eventaully the LAA will be in RAR[0] and
+ * RAR[14] */
+ e1000_rar_set(&adapter->hw, adapter->hw.mac_addr,
+ E1000_RAR_ENTRIES - 1);
+ }
+
if(adapter->hw.mac_type == e1000_82542_rev2_0)
e1000_leave_82542_rst(adapter);
struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
struct dev_mc_list *mc_ptr;
- unsigned long flags;
uint32_t rctl;
uint32_t hash_value;
- int i;
+ int i, rar_entries = E1000_RAR_ENTRIES;
- spin_lock_irqsave(&adapter->tx_lock, flags);
+ /* reserve RAR[14] for LAA over-write work-around */
+ if (adapter->hw.mac_type == e1000_82571)
+ rar_entries--;
/* Check for Promiscuous and All Multicast modes */
/* load the first 14 multicast address into the exact filters 1-14
* RAR 0 is used for the station MAC adddress
* if there are not 14 addresses, go ahead and clear the filters
+ * -- with 82571 controllers only 0-13 entries are filled here
*/
mc_ptr = netdev->mc_list;
- for(i = 1; i < E1000_RAR_ENTRIES; i++) {
- if(mc_ptr) {
+ for(i = 1; i < rar_entries; i++) {
+ if (mc_ptr) {
e1000_rar_set(hw, mc_ptr->dmi_addr, i);
mc_ptr = mc_ptr->next;
} else {
if(hw->mac_type == e1000_82542_rev2_0)
e1000_leave_82542_rst(adapter);
-
- spin_unlock_irqrestore(&adapter->tx_lock, flags);
}
/* Need to wait a few seconds after link up to get diagnostic information from
e1000_watchdog_task(struct e1000_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
- struct e1000_desc_ring *txdr = &adapter->tx_ring;
+ struct e1000_tx_ring *txdr = &adapter->tx_ring[0];
uint32_t link;
e1000_check_for_link(&adapter->hw);
e1000_update_adaptive(&adapter->hw);
- if(!netif_carrier_ok(netdev)) {
- if(E1000_DESC_UNUSED(txdr) + 1 < txdr->count) {
+ if (adapter->num_queues == 1 && !netif_carrier_ok(netdev)) {
+ if (E1000_DESC_UNUSED(txdr) + 1 < txdr->count) {
/* We've lost link, so the controller stops DMA,
* but we've got queued Tx work that's never going
* to get done, so reset controller to flush Tx.
/* Force detection of hung controller every watchdog period */
adapter->detect_tx_hung = TRUE;
+ /* With 82571 controllers, LAA may be overwritten due to controller
+ * reset from the other port. Set the appropriate LAA in RAR[0] */
+ if (adapter->hw.mac_type == e1000_82571 && adapter->hw.laa_is_present)
+ e1000_rar_set(&adapter->hw, adapter->hw.mac_addr, 0);
+
/* Reset the timer */
mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
}
#define E1000_TX_FLAGS_VLAN_SHIFT 16
static inline int
-e1000_tso(struct e1000_adapter *adapter, struct sk_buff *skb)
+e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
+ struct sk_buff *skb)
{
#ifdef NETIF_F_TSO
struct e1000_context_desc *context_desc;
cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE |
E1000_TXD_CMD_TCP | (skb->len - (hdr_len)));
- i = adapter->tx_ring.next_to_use;
- context_desc = E1000_CONTEXT_DESC(adapter->tx_ring, i);
+ i = tx_ring->next_to_use;
+ context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
context_desc->lower_setup.ip_fields.ipcss = ipcss;
context_desc->lower_setup.ip_fields.ipcso = ipcso;
context_desc->tcp_seg_setup.fields.hdr_len = hdr_len;
context_desc->cmd_and_length = cpu_to_le32(cmd_length);
- if(++i == adapter->tx_ring.count) i = 0;
- adapter->tx_ring.next_to_use = i;
+ if (++i == tx_ring->count) i = 0;
+ tx_ring->next_to_use = i;
return 1;
}
}
static inline boolean_t
-e1000_tx_csum(struct e1000_adapter *adapter, struct sk_buff *skb)
+e1000_tx_csum(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
+ struct sk_buff *skb)
{
struct e1000_context_desc *context_desc;
unsigned int i;
if(likely(skb->ip_summed == CHECKSUM_HW)) {
css = skb->h.raw - skb->data;
- i = adapter->tx_ring.next_to_use;
- context_desc = E1000_CONTEXT_DESC(adapter->tx_ring, i);
+ i = tx_ring->next_to_use;
+ context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
context_desc->upper_setup.tcp_fields.tucss = css;
context_desc->upper_setup.tcp_fields.tucso = css + skb->csum;
context_desc->tcp_seg_setup.data = 0;
context_desc->cmd_and_length = cpu_to_le32(E1000_TXD_CMD_DEXT);
- if(unlikely(++i == adapter->tx_ring.count)) i = 0;
- adapter->tx_ring.next_to_use = i;
+ if (unlikely(++i == tx_ring->count)) i = 0;
+ tx_ring->next_to_use = i;
return TRUE;
}
#define E1000_MAX_DATA_PER_TXD (1<<E1000_MAX_TXD_PWR)
static inline int
-e1000_tx_map(struct e1000_adapter *adapter, struct sk_buff *skb,
- unsigned int first, unsigned int max_per_txd,
- unsigned int nr_frags, unsigned int mss)
+e1000_tx_map(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
+ struct sk_buff *skb, unsigned int first, unsigned int max_per_txd,
+ unsigned int nr_frags, unsigned int mss)
{
- struct e1000_desc_ring *tx_ring = &adapter->tx_ring;
struct e1000_buffer *buffer_info;
unsigned int len = skb->len;
unsigned int offset = 0, size, count = 0, i;
}
static inline void
-e1000_tx_queue(struct e1000_adapter *adapter, int count, int tx_flags)
+e1000_tx_queue(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
+ int tx_flags, int count)
{
- struct e1000_desc_ring *tx_ring = &adapter->tx_ring;
struct e1000_tx_desc *tx_desc = NULL;
struct e1000_buffer *buffer_info;
uint32_t txd_upper = 0, txd_lower = E1000_TXD_CMD_IFCS;
wmb();
tx_ring->next_to_use = i;
- E1000_WRITE_REG(&adapter->hw, TDT, i);
+ writel(i, adapter->hw.hw_addr + tx_ring->tdt);
}
/**
e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_tx_ring *tx_ring;
unsigned int first, max_per_txd = E1000_MAX_DATA_PER_TXD;
unsigned int max_txd_pwr = E1000_MAX_TXD_PWR;
unsigned int tx_flags = 0;
unsigned int f;
len -= skb->data_len;
- if(unlikely(skb->len <= 0)) {
+#ifdef CONFIG_E1000_MQ
+ tx_ring = *per_cpu_ptr(adapter->cpu_tx_ring, smp_processor_id());
+#else
+ tx_ring = adapter->tx_ring;
+#endif
+
+ if (unlikely(skb->len <= 0)) {
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
if(adapter->pcix_82544)
count += nr_frags;
- local_irq_save(flags);
- if (!spin_trylock(&adapter->tx_lock)) {
- /* Collision - tell upper layer to requeue */
- local_irq_restore(flags);
- return NETDEV_TX_LOCKED;
- }
+#ifdef NETIF_F_TSO
+ /* TSO Workaround for 82571/2 Controllers -- if skb->data
+ * points to just header, pull a few bytes of payload from
+ * frags into skb->data */
+ if (skb_shinfo(skb)->tso_size) {
+ uint8_t hdr_len;
+ hdr_len = ((skb->h.raw - skb->data) + (skb->h.th->doff << 2));
+ if (skb->data_len && (hdr_len < (skb->len - skb->data_len)) &&
+ (adapter->hw.mac_type == e1000_82571 ||
+ adapter->hw.mac_type == e1000_82572)) {
+ unsigned int pull_size;
+ pull_size = min((unsigned int)4, skb->data_len);
+ if (!__pskb_pull_tail(skb, pull_size)) {
+ printk(KERN_ERR "__pskb_pull_tail failed.\n");
+ dev_kfree_skb_any(skb);
+ return -EFAULT;
+ }
+ }
+ }
+#endif
+
if(adapter->hw.tx_pkt_filtering && (adapter->hw.mac_type == e1000_82573) )
e1000_transfer_dhcp_info(adapter, skb);
+ local_irq_save(flags);
+ if (!spin_trylock(&tx_ring->tx_lock)) {
+ /* Collision - tell upper layer to requeue */
+ local_irq_restore(flags);
+ return NETDEV_TX_LOCKED;
+ }
/* need: count + 2 desc gap to keep tail from touching
* head, otherwise try next time */
- if(unlikely(E1000_DESC_UNUSED(&adapter->tx_ring) < count + 2)) {
+ if (unlikely(E1000_DESC_UNUSED(tx_ring) < count + 2)) {
netif_stop_queue(netdev);
- spin_unlock_irqrestore(&adapter->tx_lock, flags);
+ spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
return NETDEV_TX_BUSY;
}
if(unlikely(e1000_82547_fifo_workaround(adapter, skb))) {
netif_stop_queue(netdev);
mod_timer(&adapter->tx_fifo_stall_timer, jiffies);
- spin_unlock_irqrestore(&adapter->tx_lock, flags);
+ spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
return NETDEV_TX_BUSY;
}
}
tx_flags |= (vlan_tx_tag_get(skb) << E1000_TX_FLAGS_VLAN_SHIFT);
}
- first = adapter->tx_ring.next_to_use;
+ first = tx_ring->next_to_use;
- tso = e1000_tso(adapter, skb);
+ tso = e1000_tso(adapter, tx_ring, skb);
if (tso < 0) {
dev_kfree_skb_any(skb);
- spin_unlock_irqrestore(&adapter->tx_lock, flags);
+ spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
return NETDEV_TX_OK;
}
if (likely(tso))
tx_flags |= E1000_TX_FLAGS_TSO;
- else if(likely(e1000_tx_csum(adapter, skb)))
+ else if (likely(e1000_tx_csum(adapter, tx_ring, skb)))
tx_flags |= E1000_TX_FLAGS_CSUM;
/* Old method was to assume IPv4 packet by default if TSO was enabled.
- * 82573 hardware supports TSO capabilities for IPv6 as well...
+ * 82571 hardware supports TSO capabilities for IPv6 as well...
* no longer assume, we must. */
- if(likely(skb->protocol == ntohs(ETH_P_IP)))
+ if (likely(skb->protocol == ntohs(ETH_P_IP)))
tx_flags |= E1000_TX_FLAGS_IPV4;
- e1000_tx_queue(adapter,
- e1000_tx_map(adapter, skb, first, max_per_txd, nr_frags, mss),
- tx_flags);
+ e1000_tx_queue(adapter, tx_ring, tx_flags,
+ e1000_tx_map(adapter, tx_ring, skb, first,
+ max_per_txd, nr_frags, mss));
netdev->trans_start = jiffies;
/* Make sure there is space in the ring for the next send. */
- if(unlikely(E1000_DESC_UNUSED(&adapter->tx_ring) < MAX_SKB_FRAGS + 2))
+ if (unlikely(E1000_DESC_UNUSED(tx_ring) < MAX_SKB_FRAGS + 2))
netif_stop_queue(netdev);
- spin_unlock_irqrestore(&adapter->tx_lock, flags);
+ spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
return NETDEV_TX_OK;
}
return -EINVAL;
}
-#define MAX_STD_JUMBO_FRAME_SIZE 9216
+#define MAX_STD_JUMBO_FRAME_SIZE 9234
/* might want this to be bigger enum check... */
- if (adapter->hw.mac_type == e1000_82573 &&
+ /* 82571 controllers limit jumbo frame size to 10500 bytes */
+ if ((adapter->hw.mac_type == e1000_82571 ||
+ adapter->hw.mac_type == e1000_82572) &&
+ max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
+ DPRINTK(PROBE, ERR, "MTU > 9216 bytes not supported "
+ "on 82571 and 82572 controllers.\n");
+ return -EINVAL;
+ }
+
+ if(adapter->hw.mac_type == e1000_82573 &&
max_frame > MAXIMUM_ETHERNET_FRAME_SIZE) {
DPRINTK(PROBE, ERR, "Jumbo Frames not supported "
"on 82573\n");
spin_unlock_irqrestore(&adapter->stats_lock, flags);
}
+#ifdef CONFIG_E1000_MQ
+void
+e1000_rx_schedule(void *data)
+{
+ struct net_device *poll_dev, *netdev = data;
+ struct e1000_adapter *adapter = netdev->priv;
+ int this_cpu = get_cpu();
+
+ poll_dev = *per_cpu_ptr(adapter->cpu_netdev, this_cpu);
+ if (poll_dev == NULL) {
+ put_cpu();
+ return;
+ }
+
+ if (likely(netif_rx_schedule_prep(poll_dev)))
+ __netif_rx_schedule(poll_dev);
+ else
+ e1000_irq_enable(adapter);
+
+ put_cpu();
+}
+#endif
+
/**
* e1000_intr - Interrupt Handler
* @irq: interrupt number
struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
uint32_t icr = E1000_READ_REG(hw, ICR);
-#ifndef CONFIG_E1000_NAPI
- unsigned int i;
-#endif
+ int i;
if(unlikely(!icr))
return IRQ_NONE; /* Not our interrupt */
}
#ifdef CONFIG_E1000_NAPI
- if(likely(netif_rx_schedule_prep(netdev))) {
-
- /* Disable interrupts and register for poll. The flush
- of the posted write is intentionally left out.
- */
-
- atomic_inc(&adapter->irq_sem);
- E1000_WRITE_REG(hw, IMC, ~0);
- __netif_rx_schedule(netdev);
+ atomic_inc(&adapter->irq_sem);
+ E1000_WRITE_REG(hw, IMC, ~0);
+ E1000_WRITE_FLUSH(hw);
+#ifdef CONFIG_E1000_MQ
+ if (atomic_read(&adapter->rx_sched_call_data.count) == 0) {
+ cpu_set(adapter->cpu_for_queue[0],
+ adapter->rx_sched_call_data.cpumask);
+ for (i = 1; i < adapter->num_queues; i++) {
+ cpu_set(adapter->cpu_for_queue[i],
+ adapter->rx_sched_call_data.cpumask);
+ atomic_inc(&adapter->irq_sem);
+ }
+ atomic_set(&adapter->rx_sched_call_data.count, i);
+ smp_call_async_mask(&adapter->rx_sched_call_data);
+ } else {
+ printk("call_data.count == %u\n", atomic_read(&adapter->rx_sched_call_data.count));
}
#else
+ if (likely(netif_rx_schedule_prep(&adapter->polling_netdev[0])))
+ __netif_rx_schedule(&adapter->polling_netdev[0]);
+ else
+ e1000_irq_enable(adapter);
+#endif
+#else
/* Writing IMC and IMS is needed for 82547.
Due to Hub Link bus being occupied, an interrupt
de-assertion message is not able to be sent.
}
for(i = 0; i < E1000_MAX_INTR; i++)
- if(unlikely(!adapter->clean_rx(adapter) &
- !e1000_clean_tx_irq(adapter)))
+ if(unlikely(!adapter->clean_rx(adapter, adapter->rx_ring) &
+ !e1000_clean_tx_irq(adapter, adapter->tx_ring)))
break;
if(hw->mac_type == e1000_82547 || hw->mac_type == e1000_82547_rev_2)
e1000_irq_enable(adapter);
+
#endif
return IRQ_HANDLED;
**/
static int
-e1000_clean(struct net_device *netdev, int *budget)
+e1000_clean(struct net_device *poll_dev, int *budget)
{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- int work_to_do = min(*budget, netdev->quota);
- int tx_cleaned;
- int work_done = 0;
+ struct e1000_adapter *adapter;
+ int work_to_do = min(*budget, poll_dev->quota);
+ int tx_cleaned, i = 0, work_done = 0;
- tx_cleaned = e1000_clean_tx_irq(adapter);
- adapter->clean_rx(adapter, &work_done, work_to_do);
+ /* Must NOT use netdev_priv macro here. */
+ adapter = poll_dev->priv;
+
+ /* Keep link state information with original netdev */
+ if (!netif_carrier_ok(adapter->netdev))
+ goto quit_polling;
+
+ while (poll_dev != &adapter->polling_netdev[i]) {
+ i++;
+ if (unlikely(i == adapter->num_queues))
+ BUG();
+ }
+
+ tx_cleaned = e1000_clean_tx_irq(adapter, &adapter->tx_ring[i]);
+ adapter->clean_rx(adapter, &adapter->rx_ring[i],
+ &work_done, work_to_do);
*budget -= work_done;
- netdev->quota -= work_done;
+ poll_dev->quota -= work_done;
- if ((!tx_cleaned && (work_done == 0)) || !netif_running(netdev)) {
/* If no Tx and not enough Rx work done, exit the polling mode */
- netif_rx_complete(netdev);
+ if((!tx_cleaned && (work_done == 0)) ||
+ !netif_running(adapter->netdev)) {
+quit_polling:
+ netif_rx_complete(poll_dev);
e1000_irq_enable(adapter);
return 0;
}
**/
static boolean_t
-e1000_clean_tx_irq(struct e1000_adapter *adapter)
+e1000_clean_tx_irq(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring)
{
- struct e1000_desc_ring *tx_ring = &adapter->tx_ring;
struct net_device *netdev = adapter->netdev;
struct e1000_tx_desc *tx_desc, *eop_desc;
struct e1000_buffer *buffer_info;
eop = tx_ring->buffer_info[i].next_to_watch;
eop_desc = E1000_TX_DESC(*tx_ring, eop);
- while(eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) {
+ while (eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) {
/* Premature writeback of Tx descriptors clear (free buffers
* and unmap pci_mapping) previous_buffer_info */
- if (likely(adapter->previous_buffer_info.skb != NULL)) {
+ if (likely(tx_ring->previous_buffer_info.skb != NULL)) {
e1000_unmap_and_free_tx_resource(adapter,
- &adapter->previous_buffer_info);
+ &tx_ring->previous_buffer_info);
}
for(cleaned = FALSE; !cleaned; ) {
#ifdef NETIF_F_TSO
} else {
if (cleaned) {
- memcpy(&adapter->previous_buffer_info,
+ memcpy(&tx_ring->previous_buffer_info,
buffer_info,
sizeof(struct e1000_buffer));
memset(buffer_info, 0,
if(unlikely(++i == tx_ring->count)) i = 0;
}
+
+ tx_ring->pkt++;
eop = tx_ring->buffer_info[i].next_to_watch;
eop_desc = E1000_TX_DESC(*tx_ring, eop);
tx_ring->next_to_clean = i;
- spin_lock(&adapter->tx_lock);
+ spin_lock(&tx_ring->tx_lock);
if(unlikely(cleaned && netif_queue_stopped(netdev) &&
netif_carrier_ok(netdev)))
netif_wake_queue(netdev);
- spin_unlock(&adapter->tx_lock);
- if(adapter->detect_tx_hung) {
+ spin_unlock(&tx_ring->tx_lock);
+ if (adapter->detect_tx_hung) {
/* Detect a transmit hang in hardware, this serializes the
* check with the clearing of time_stamp and movement of i */
adapter->detect_tx_hung = FALSE;
" next_to_watch <%x>\n"
" jiffies <%lx>\n"
" next_to_watch.status <%x>\n",
- E1000_READ_REG(&adapter->hw, TDH),
- E1000_READ_REG(&adapter->hw, TDT),
+ readl(adapter->hw.hw_addr + tx_ring->tdh),
+ readl(adapter->hw.hw_addr + tx_ring->tdt),
tx_ring->next_to_use,
i,
(unsigned long long)tx_ring->buffer_info[i].dma,
}
}
#ifdef NETIF_F_TSO
-
- if( unlikely(!(eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) &&
- time_after(jiffies, adapter->previous_buffer_info.time_stamp + HZ)))
+ if (unlikely(!(eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) &&
+ time_after(jiffies, tx_ring->previous_buffer_info.time_stamp + HZ)))
e1000_unmap_and_free_tx_resource(
- adapter, &adapter->previous_buffer_info);
-
+ adapter, &tx_ring->previous_buffer_info);
#endif
return cleaned;
}
static boolean_t
#ifdef CONFIG_E1000_NAPI
-e1000_clean_rx_irq(struct e1000_adapter *adapter, int *work_done,
- int work_to_do)
+e1000_clean_rx_irq(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring,
+ int *work_done, int work_to_do)
#else
-e1000_clean_rx_irq(struct e1000_adapter *adapter)
+e1000_clean_rx_irq(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring)
#endif
{
- struct e1000_desc_ring *rx_ring = &adapter->rx_ring;
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
struct e1000_rx_desc *rx_desc;
}
#endif /* CONFIG_E1000_NAPI */
netdev->last_rx = jiffies;
+ rx_ring->pkt++;
next_desc:
rx_desc->status = 0;
rx_desc = E1000_RX_DESC(*rx_ring, i);
}
rx_ring->next_to_clean = i;
- adapter->alloc_rx_buf(adapter);
+ adapter->alloc_rx_buf(adapter, rx_ring);
return cleaned;
}
static boolean_t
#ifdef CONFIG_E1000_NAPI
-e1000_clean_rx_irq_ps(struct e1000_adapter *adapter, int *work_done,
- int work_to_do)
+e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring,
+ int *work_done, int work_to_do)
#else
-e1000_clean_rx_irq_ps(struct e1000_adapter *adapter)
+e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring)
#endif
{
- struct e1000_desc_ring *rx_ring = &adapter->rx_ring;
union e1000_rx_desc_packet_split *rx_desc;
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
}
#endif /* CONFIG_E1000_NAPI */
netdev->last_rx = jiffies;
+ rx_ring->pkt++;
next_desc:
rx_desc->wb.middle.status_error &= ~0xFF;
staterr = le32_to_cpu(rx_desc->wb.middle.status_error);
}
rx_ring->next_to_clean = i;
- adapter->alloc_rx_buf(adapter);
+ adapter->alloc_rx_buf(adapter, rx_ring);
return cleaned;
}
**/
static void
-e1000_alloc_rx_buffers(struct e1000_adapter *adapter)
+e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring)
{
- struct e1000_desc_ring *rx_ring = &adapter->rx_ring;
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
struct e1000_rx_desc *rx_desc;
* applicable for weak-ordered memory model archs,
* such as IA-64). */
wmb();
- E1000_WRITE_REG(&adapter->hw, RDT, i);
+ writel(i, adapter->hw.hw_addr + rx_ring->rdt);
}
if(unlikely(++i == rx_ring->count)) i = 0;
**/
static void
-e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter)
+e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring)
{
- struct e1000_desc_ring *rx_ring = &adapter->rx_ring;
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
union e1000_rx_desc_packet_split *rx_desc;
* descriptors are 32 bytes...so we increment tail
* twice as much.
*/
- E1000_WRITE_REG(&adapter->hw, RDT, i<<1);
+ writel(i<<1, adapter->hw.hw_addr + rx_ring->rdt);
}
if(unlikely(++i == rx_ring->count)) i = 0;
}
switch(adapter->hw.mac_type) {
+ case e1000_82571:
+ case e1000_82572:
+ ctrl_ext = E1000_READ_REG(&adapter->hw, CTRL_EXT);
+ E1000_WRITE_REG(&adapter->hw, CTRL_EXT,
+ ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
+ break;
case e1000_82573:
swsm = E1000_READ_REG(&adapter->hw, SWSM);
E1000_WRITE_REG(&adapter->hw, SWSM,
struct net_device *netdev = pci_get_drvdata(pdev);
struct e1000_adapter *adapter = netdev_priv(netdev);
uint32_t manc, ret_val, swsm;
+ uint32_t ctrl_ext;
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
}
switch(adapter->hw.mac_type) {
+ case e1000_82571:
+ case e1000_82572:
+ ctrl_ext = E1000_READ_REG(&adapter->hw, CTRL_EXT);
+ E1000_WRITE_REG(&adapter->hw, CTRL_EXT,
+ ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
+ break;
case e1000_82573:
swsm = E1000_READ_REG(&adapter->hw, SWSM);
E1000_WRITE_REG(&adapter->hw, SWSM,
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