1 files changed, 118 insertions, 4 deletions

diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index 2765a3ce9c24..62fa7eec5f0c 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -39,6 +39,7 @@
 #include <linux/pci.h>
 #include <linux/dma-mapping.h>
 #include <linux/slab.h>
+#include <linux/io-mapping.h>
 
 #include <linux/mlx4/device.h>
 #include <linux/mlx4/doorbell.h>
@@ -227,6 +228,9 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
         dev->caps.stat_rate_support  = dev_cap->stat_rate_support;
         dev->caps.udp_rss            = dev_cap->udp_rss;
         dev->caps.loopback_support   = dev_cap->loopback_support;
+        dev->caps.vep_uc_steering    = dev_cap->vep_uc_steering;
+        dev->caps.vep_mc_steering    = dev_cap->vep_mc_steering;
+        dev->caps.wol                = dev_cap->wol;
         dev->caps.max_gso_sz         = dev_cap->max_gso_sz;
 
         dev->caps.log_num_macs  = log_num_mac;
@@ -718,8 +722,31 @@ static void mlx4_free_icms(struct mlx4_dev *dev)
         mlx4_free_icm(dev, priv->fw.aux_icm, 0);
 }
 
+static int map_bf_area(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        resource_size_t bf_start;
+        resource_size_t bf_len;
+        int err = 0;
+
+        bf_start = pci_resource_start(dev->pdev, 2) + (dev->caps.num_uars << PAGE_SHIFT);
+        bf_len = pci_resource_len(dev->pdev, 2) - (dev->caps.num_uars << PAGE_SHIFT);
+        priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len);
+        if (!priv->bf_mapping)
+                err = -ENOMEM;
+
+        return err;
+}
+
+static void unmap_bf_area(struct mlx4_dev *dev)
+{
+        if (mlx4_priv(dev)->bf_mapping)
+                io_mapping_free(mlx4_priv(dev)->bf_mapping);
+}
+
 static void mlx4_close_hca(struct mlx4_dev *dev)
 {
+        unmap_bf_area(dev);
         mlx4_CLOSE_HCA(dev, 0);
         mlx4_free_icms(dev);
         mlx4_UNMAP_FA(dev);
@@ -772,6 +799,9 @@ static int mlx4_init_hca(struct mlx4_dev *dev)
                 goto err_stop_fw;
         }
 
+        if (map_bf_area(dev))
+                mlx4_dbg(dev, "Failed to map blue flame area\n");
+
         init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
 
         err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
@@ -802,6 +832,7 @@ err_free_icm:
         mlx4_free_icms(dev);
 
 err_stop_fw:
+        unmap_bf_area(dev);
         mlx4_UNMAP_FA(dev);
         mlx4_free_icm(dev, priv->fw.fw_icm, 0);
 
@@ -969,13 +1000,15 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev)
 {
         struct mlx4_priv *priv = mlx4_priv(dev);
         struct msix_entry *entries;
-        int nreq;
+        int nreq = min_t(int, dev->caps.num_ports *
+                         min_t(int, num_online_cpus() + 1, MAX_MSIX_P_PORT)
+                                + MSIX_LEGACY_SZ, MAX_MSIX);
         int err;
         int i;
 
         if (msi_x) {
                 nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs,
-                             num_possible_cpus() + 1);
+                             nreq);
                 entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
                 if (!entries)
                         goto no_msi;
@@ -998,7 +1031,15 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev)
                         goto no_msi;
                 }
 
-                dev->caps.num_comp_vectors = nreq - 1;
+                if (nreq <
+                    MSIX_LEGACY_SZ + dev->caps.num_ports * MIN_MSIX_P_PORT) {
+                        /*Working in legacy mode , all EQ's shared*/
+                        dev->caps.comp_pool           = 0;
+                        dev->caps.num_comp_vectors = nreq - 1;
+                } else {
+                        dev->caps.comp_pool           = nreq - MSIX_LEGACY_SZ;
+                        dev->caps.num_comp_vectors = MSIX_LEGACY_SZ - 1;
+                }
                 for (i = 0; i < nreq; ++i)
                         priv->eq_table.eq[i].irq = entries[i].vector;
 
@@ -1010,6 +1051,7 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev)
 
 no_msi:
         dev->caps.num_comp_vectors = 1;
+        dev->caps.comp_pool        = 0;
 
         for (i = 0; i < 2; ++i)
                 priv->eq_table.eq[i].irq = dev->pdev->irq;
@@ -1049,6 +1091,59 @@ static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
         device_remove_file(&info->dev->pdev->dev, &info->port_attr);
 }
 
+static int mlx4_init_steering(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        int num_entries = dev->caps.num_ports;
+        int i, j;
+
+        priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
+        if (!priv->steer)
+                return -ENOMEM;
+
+        for (i = 0; i < num_entries; i++) {
+                for (j = 0; j < MLX4_NUM_STEERS; j++) {
+                        INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
+                        INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
+                }
+                INIT_LIST_HEAD(&priv->steer[i].high_prios);
+        }
+        return 0;
+}
+
+static void mlx4_clear_steering(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        struct mlx4_steer_index *entry, *tmp_entry;
+        struct mlx4_promisc_qp *pqp, *tmp_pqp;
+        int num_entries = dev->caps.num_ports;
+        int i, j;
+
+        for (i = 0; i < num_entries; i++) {
+                for (j = 0; j < MLX4_NUM_STEERS; j++) {
+                        list_for_each_entry_safe(pqp, tmp_pqp,
+                                                 &priv->steer[i].promisc_qps[j],
+                                                 list) {
+                                list_del(&pqp->list);
+                                kfree(pqp);
+                        }
+                        list_for_each_entry_safe(entry, tmp_entry,
+                                                 &priv->steer[i].steer_entries[j],
+                                                 list) {
+                                list_del(&entry->list);
+                                list_for_each_entry_safe(pqp, tmp_pqp,
+                                                         &entry->duplicates,
+                                                         list) {
+                                        list_del(&pqp->list);
+                                        kfree(pqp);
+                                }
+                                kfree(entry);
+                        }
+                }
+        }
+        kfree(priv->steer);
+}
+
 static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 {
         struct mlx4_priv *priv;
@@ -1109,6 +1204,9 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
                 }
         }
 
+        /* Allow large DMA segments, up to the firmware limit of 1 GB */
+        dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
+
         priv = kzalloc(sizeof *priv, GFP_KERNEL);
         if (!priv) {
                 dev_err(&pdev->dev, "Device struct alloc failed, "
@@ -1127,6 +1225,11 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
         INIT_LIST_HEAD(&priv->pgdir_list);
         mutex_init(&priv->pgdir_mutex);
 
+        pci_read_config_byte(pdev, PCI_REVISION_ID, &dev->rev_id);
+
+        INIT_LIST_HEAD(&priv->bf_list);
+        mutex_init(&priv->bf_mutex);
+
         /*
          * Now reset the HCA before we touch the PCI capabilities or
          * attempt a firmware command, since a boot ROM may have left
@@ -1151,8 +1254,15 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
         if (err)
                 goto err_close;
 
+        priv->msix_ctl.pool_bm = 0;
+        spin_lock_init(&priv->msix_ctl.pool_lock);
+
         mlx4_enable_msi_x(dev);
 
+        err = mlx4_init_steering(dev);
+        if (err)
+                goto err_free_eq;
+
         err = mlx4_setup_hca(dev);
         if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X)) {
                 dev->flags &= ~MLX4_FLAG_MSI_X;
@@ -1161,7 +1271,7 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
         }
 
         if (err)
-                goto err_free_eq;
+                goto err_steer;
 
         for (port = 1; port <= dev->caps.num_ports; port++) {
                 err = mlx4_init_port_info(dev, port);
@@ -1194,6 +1304,9 @@ err_port:
         mlx4_cleanup_pd_table(dev);
         mlx4_cleanup_uar_table(dev);
 
+err_steer:
+        mlx4_clear_steering(dev);
+
 err_free_eq:
         mlx4_free_eq_table(dev);
 
@@ -1253,6 +1366,7 @@ static void mlx4_remove_one(struct pci_dev *pdev)
                 iounmap(priv->kar);
                 mlx4_uar_free(dev, &priv->driver_uar);
                 mlx4_cleanup_uar_table(dev);
+                mlx4_clear_steering(dev);
                 mlx4_free_eq_table(dev);
                 mlx4_close_hca(dev);
                 mlx4_cmd_cleanup(dev);