#include <linux/inetdevice.h>
#include <linux/sysfs.h>
#include <linux/aer.h>
+#include <linux/log2.h>
MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
MODULE_LICENSE("GPL");
.start_firmware = qlcnicvf_start_firmware
};
-static void
-qlcnic_setup_intr(struct qlcnic_adapter *adapter)
+static int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
{
- const struct qlcnic_legacy_intr_set *legacy_intrp;
struct pci_dev *pdev = adapter->pdev;
- int err, num_msix;
-
- if (adapter->msix_supported) {
- num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
- MSIX_ENTRIES_PER_ADAPTER : 2;
- } else
- num_msix = 1;
+ int err = -1;
adapter->max_sds_rings = 1;
-
adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
-
- legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
-
- adapter->int_vec_bit = legacy_intrp->int_vec_bit;
- adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
- legacy_intrp->tgt_status_reg);
- adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
- legacy_intrp->tgt_mask_reg);
- adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
-
- adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
- ISR_INT_STATE_REG);
-
qlcnic_set_msix_bit(pdev, 0);
if (adapter->msix_supported) {
-
+ enable_msix:
qlcnic_init_msix_entries(adapter, num_msix);
err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
if (err == 0) {
adapter->max_sds_rings = num_msix;
dev_info(&pdev->dev, "using msi-x interrupts\n");
- return;
+ return err;
+ }
+ if (err > 0) {
+ num_msix = rounddown_pow_of_two(err);
+ if (num_msix)
+ goto enable_msix;
}
+ }
+ return err;
+}
- if (err > 0)
- pci_disable_msix(pdev);
- /* fall through for msi */
- }
+static void qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
+{
+ const struct qlcnic_legacy_intr_set *legacy_intrp;
+ struct pci_dev *pdev = adapter->pdev;
if (use_msi && !pci_enable_msi(pdev)) {
adapter->flags |= QLCNIC_MSI_ENABLED;
return;
}
+ legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
+
+ adapter->int_vec_bit = legacy_intrp->int_vec_bit;
+ adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
+ legacy_intrp->tgt_status_reg);
+ adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
+ legacy_intrp->tgt_mask_reg);
+ adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
+
+ adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
+ ISR_INT_STATE_REG);
dev_info(&pdev->dev, "using legacy interrupts\n");
adapter->msix_entries[0].vector = pdev->irq;
}
+static void
+qlcnic_setup_intr(struct qlcnic_adapter *adapter)
+{
+ int num_msix;
+
+ if (adapter->msix_supported) {
+ num_msix = (num_online_cpus() >=
+ QLCNIC_DEF_NUM_STS_DESC_RINGS) ?
+ QLCNIC_DEF_NUM_STS_DESC_RINGS :
+ QLCNIC_MIN_NUM_RSS_RINGS;
+ } else
+ num_msix = 1;
+
+ if (!qlcnic_enable_msix(adapter, num_msix))
+ return;
+
+ qlcnic_enable_msi_legacy(adapter);
+}
+
static void
qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
{
kfree(adapter->recv_ctx);
adapter->recv_ctx = NULL;
+ if (adapter->ahw->fw_dump.tmpl_hdr) {
+ vfree(adapter->ahw->fw_dump.tmpl_hdr);
+ adapter->ahw->fw_dump.tmpl_hdr = NULL;
+ }
kfree(adapter->ahw);
adapter->ahw = NULL;
}
return 0;
}
+static int
+qlcnic_alloc_msix_entries(struct qlcnic_adapter *adapter, u16 count)
+{
+ adapter->msix_entries = kcalloc(count, sizeof(struct msix_entry),
+ GFP_KERNEL);
+
+ if (adapter->msix_entries)
+ return 0;
+
+ dev_err(&adapter->pdev->dev, "failed allocating msix_entries\n");
+ return -ENOMEM;
+}
+
static int __devinit
qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
/* This will be reset for mezz cards */
adapter->portnum = adapter->ahw->pci_func;
+ /* Get FW dump template and store it */
+ if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC)
+ qlcnic_fw_cmd_get_minidump_temp(adapter);
+
err = qlcnic_get_board_info(adapter);
if (err) {
dev_err(&pdev->dev, "Error getting board config info.\n");
qlcnic_clear_stats(adapter);
+ err = qlcnic_alloc_msix_entries(adapter, adapter->max_rx_ques);
+ if (err)
+ goto err_out_decr_ref;
+
qlcnic_setup_intr(adapter);
err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
err_out_disable_msi:
qlcnic_teardown_intr(adapter);
+ kfree(adapter->msix_entries);
err_out_decr_ref:
qlcnic_clr_all_drv_state(adapter, 0);
qlcnic_free_lb_filters_mem(adapter);
qlcnic_teardown_intr(adapter);
+ kfree(adapter->msix_entries);
qlcnic_remove_diag_entries(adapter);
set_bit(__QLCNIC_START_FW, &adapter->state);
QLCDB(adapter, DRV, "Restarting fw\n");
qlcnic_idc_debug_info(adapter, 0);
+ QLCDB(adapter, DRV, "Take FW dump\n");
+ qlcnic_dump_fw(adapter);
}
qlcnic_api_unlock(adapter);
}
/*Transit to RESET state from READY state only */
-static void
+void
qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
{
u32 state;
.store = qlcnic_store_diag_mode,
};
+int qlcnic_validate_max_rss(struct net_device *netdev, u8 max_hw, u8 val)
+{
+ if (!use_msi_x && !use_msi) {
+ netdev_info(netdev, "no msix or msi support, hence no rss\n");
+ return -EINVAL;
+ }
+
+ if ((val > max_hw) || (val < 2) || !is_power_of_2(val)) {
+ netdev_info(netdev, "rss_ring valid range [2 - %x] in "
+ " powers of 2\n", max_hw);
+ return -EINVAL;
+ }
+ return 0;
+
+}
+
+int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data)
+{
+ struct net_device *netdev = adapter->netdev;
+ int err = 0;
+
+ if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
+ return -EBUSY;
+
+ netif_device_detach(netdev);
+ if (netif_running(netdev))
+ __qlcnic_down(adapter, netdev);
+ qlcnic_detach(adapter);
+ qlcnic_teardown_intr(adapter);
+
+ if (qlcnic_enable_msix(adapter, data)) {
+ netdev_info(netdev, "failed setting max_rss; rss disabled\n");
+ qlcnic_enable_msi_legacy(adapter);
+ }
+
+ if (netif_running(netdev)) {
+ err = qlcnic_attach(adapter);
+ if (err)
+ goto done;
+ err = __qlcnic_up(adapter, netdev);
+ if (err)
+ goto done;
+ qlcnic_restore_indev_addr(netdev, NETDEV_UP);
+ }
+ done:
+ netif_device_attach(netdev);
+ clear_bit(__QLCNIC_RESETTING, &adapter->state);
+ return err;
+}
+
static int
qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
loff_t offset, size_t size)
return size;
}
-
static struct bin_attribute bin_attr_crb = {
.attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
.size = 0,
git.openpandora.org / pandora-kernel.git / blobdiff