[PATCH] IB/mthca: add support for new MT25204 HCA

Decouple table of HCA features from exact HCA device type.  Add a current FW
version field so we can warn when someone is using old FW.  Add support for
new MT25204 HCA.

Remove the warning about mem-free support, since it should be pretty solid at
this point.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

4 files changed, 73 insertions, 26 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_dev.h b/drivers/infiniband/hw/mthca/mthca_dev.h
index d014b443dc3..e3d79e267dc 100644
--- a/drivers/infiniband/hw/mthca/mthca_dev.h
+++ b/drivers/infiniband/hw/mthca/mthca_dev.h
@@ -49,20 +49,15 @@
 #define DRV_VERSION     "0.06-pre"
 #define DRV_RELDATE     "November 8, 2004"
 
-/* Types of supported HCA */
-enum {
-        TAVOR,                  /* MT23108                        */
-        ARBEL_COMPAT,           /* MT25208 in Tavor compat mode   */
-        ARBEL_NATIVE            /* MT25208 with extended features */
-};
-
 enum {
         MTHCA_FLAG_DDR_HIDDEN = 1 << 1,
         MTHCA_FLAG_SRQ        = 1 << 2,
         MTHCA_FLAG_MSI        = 1 << 3,
         MTHCA_FLAG_MSI_X      = 1 << 4,
         MTHCA_FLAG_NO_LAM     = 1 << 5,
-        MTHCA_FLAG_FMR        = 1 << 6
+        MTHCA_FLAG_FMR        = 1 << 6,
+        MTHCA_FLAG_MEMFREE    = 1 << 7,
+        MTHCA_FLAG_PCIE       = 1 << 8
 };
 
 enum {
@@ -473,7 +468,7 @@ static inline struct mthca_dev *to_mdev(struct ib_device *ibdev)
 
 static inline int mthca_is_memfree(struct mthca_dev *dev)
 {
-        return dev->hca_type == ARBEL_NATIVE;
+        return dev->mthca_flags & MTHCA_FLAG_MEMFREE;
 }
 
 #endif /* MTHCA_DEV_H */
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
index 014369626f6..a1fa326dceb 100644
--- a/drivers/infiniband/hw/mthca/mthca_main.c
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -103,7 +103,7 @@ static int __devinit mthca_tune_pci(struct mthca_dev *mdev)
                                   "aborting.\n");
                         return -ENODEV;
                 }
-        } else if (mdev->hca_type == TAVOR)
+        } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
                 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
 
         cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP);
@@ -119,8 +119,7 @@ static int __devinit mthca_tune_pci(struct mthca_dev *mdev)
                                   "register, aborting.\n");
                         return -ENODEV;
                 }
-        } else if (mdev->hca_type == ARBEL_NATIVE ||
-                   mdev->hca_type == ARBEL_COMPAT)
+        } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
                 mthca_info(mdev, "No PCI Express capability, "
                            "not setting Max Read Request Size.\n");
 
@@ -438,7 +437,7 @@ static int __devinit mthca_init_icm(struct mthca_dev *mdev,
         if (!mdev->qp_table.rdb_table) {
                 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
                 err = -ENOMEM;
-                goto err_unmap_eqp;
+                goto err_unmap_rdb;
         }
 
        mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
@@ -593,6 +592,7 @@ static int __devinit mthca_init_arbel(struct mthca_dev *mdev)
 
 err_free_icm:
         mthca_free_icm_table(mdev, mdev->cq_table.table);
+        mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
@@ -851,6 +851,7 @@ static void mthca_close_hca(struct mthca_dev *mdev)
 
         if (mthca_is_memfree(mdev)) {
                 mthca_free_icm_table(mdev, mdev->cq_table.table);
+                mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
                 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
                 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
                 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
@@ -869,11 +870,32 @@ static void mthca_close_hca(struct mthca_dev *mdev)
                 mthca_SYS_DIS(mdev, &status);
 }
 
+/* Types of supported HCA */
+enum {
+        TAVOR,                  /* MT23108                        */
+        ARBEL_COMPAT,           /* MT25208 in Tavor compat mode   */
+        ARBEL_NATIVE,           /* MT25208 with extended features */
+        SINAI                   /* MT25204 */
+};
+
+#define MTHCA_FW_VER(major, minor, subminor) \
+        (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
+
+static struct {
+        u64 latest_fw;
+        int is_memfree;
+        int is_pcie;
+} mthca_hca_table[] = {
+        [TAVOR]        = { .latest_fw = MTHCA_FW_VER(3, 3, 2), .is_memfree = 0, .is_pcie = 0 },
+        [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 6, 2), .is_memfree = 0, .is_pcie = 1 },
+        [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 0, 1), .is_memfree = 1, .is_pcie = 1 },
+        [SINAI]        = { .latest_fw = MTHCA_FW_VER(1, 0, 1), .is_memfree = 1, .is_pcie = 1 }
+};
+
 static int __devinit mthca_init_one(struct pci_dev *pdev,
                                     const struct pci_device_id *id)
 {
         static int mthca_version_printed = 0;
-        static int mthca_memfree_warned = 0;
         int ddr_hidden = 0;
         int err;
         struct mthca_dev *mdev;
@@ -886,6 +908,12 @@ static int __devinit mthca_init_one(struct pci_dev *pdev,
         printk(KERN_INFO PFX "Initializing %s (%s)\n",
                pci_pretty_name(pdev), pci_name(pdev));
 
+        if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
+                printk(KERN_ERR PFX "%s (%s) has invalid driver data %lx\n",
+                       pci_pretty_name(pdev), pci_name(pdev), id->driver_data);
+                return -ENODEV;
+        }
+
         err = pci_enable_device(pdev);
         if (err) {
                 dev_err(&pdev->dev, "Cannot enable PCI device, "
@@ -950,15 +978,14 @@ static int __devinit mthca_init_one(struct pci_dev *pdev,
                 goto err_free_res;
         }
 
-        mdev->pdev     = pdev;
-        mdev->hca_type = id->driver_data;
-
-        if (mthca_is_memfree(mdev) && !mthca_memfree_warned++)
-                mthca_warn(mdev, "Warning: native MT25208 mode support is incomplete.  "
-                           "Your HCA may not work properly.\n");
+        mdev->pdev = pdev;
 
         if (ddr_hidden)
                 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
+        if (mthca_hca_table[id->driver_data].is_memfree)
+                mdev->mthca_flags |= MTHCA_FLAG_MEMFREE;
+        if (mthca_hca_table[id->driver_data].is_pcie)
+                mdev->mthca_flags |= MTHCA_FLAG_PCIE;
 
         /*
          * Now reset the HCA before we touch the PCI capabilities or
@@ -997,6 +1024,16 @@ static int __devinit mthca_init_one(struct pci_dev *pdev,
         if (err)
                 goto err_iounmap;
 
+        if (mdev->fw_ver < mthca_hca_table[id->driver_data].latest_fw) {
+                mthca_warn(mdev, "HCA FW version %x.%x.%x is old (%x.%x.%x is current).\n",
+                           (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
+                           (int) (mdev->fw_ver & 0xffff),
+                           (int) (mthca_hca_table[id->driver_data].latest_fw >> 32),
+                           (int) (mthca_hca_table[id->driver_data].latest_fw >> 16) & 0xffff,
+                           (int) (mthca_hca_table[id->driver_data].latest_fw & 0xffff));
+                mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
+        }
+
         err = mthca_setup_hca(mdev);
         if (err)
                 goto err_close;
@@ -1112,6 +1149,14 @@ static struct pci_device_id mthca_pci_table[] = {
           .driver_data = ARBEL_NATIVE },
         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
           .driver_data = ARBEL_NATIVE },
+        { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
+          .driver_data = SINAI },
+        { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
+          .driver_data = SINAI },
+        { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
+          .driver_data = SINAI },
+        { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
+          .driver_data = SINAI },
         { 0, }
 };
 
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 501c9cc4e1a..159f4e6c312 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -659,11 +659,18 @@ static ssize_t show_fw_ver(struct class_device *cdev, char *buf)
 static ssize_t show_hca(struct class_device *cdev, char *buf)
 {
         struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev);
-        switch (dev->hca_type) {
-        case TAVOR:        return sprintf(buf, "MT23108\n");
-        case ARBEL_COMPAT: return sprintf(buf, "MT25208 (MT23108 compat mode)\n");
-        case ARBEL_NATIVE: return sprintf(buf, "MT25208\n");
-        default:           return sprintf(buf, "unknown\n");
+        switch (dev->pdev->device) {
+        case PCI_DEVICE_ID_MELLANOX_TAVOR:
+                return sprintf(buf, "MT23108\n");
+        case PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT:
+                return sprintf(buf, "MT25208 (MT23108 compat mode)\n");
+        case PCI_DEVICE_ID_MELLANOX_ARBEL:
+                return sprintf(buf, "MT25208\n");
+        case PCI_DEVICE_ID_MELLANOX_SINAI:
+        case PCI_DEVICE_ID_MELLANOX_SINAI_OLD:
+                return sprintf(buf, "MT25204\n");
+        default:
+                return sprintf(buf, "unknown\n");
         }
 }
 
diff --git a/drivers/infiniband/hw/mthca/mthca_reset.c b/drivers/infiniband/hw/mthca/mthca_reset.c
index ce3fff7d02b..8ea801271a4 100644
--- a/drivers/infiniband/hw/mthca/mthca_reset.c
+++ b/drivers/infiniband/hw/mthca/mthca_reset.c
@@ -63,7 +63,7 @@ int mthca_reset(struct mthca_dev *mdev)
          * header as well.
          */
 
-        if (mdev->hca_type == TAVOR) {
+        if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE)) {
                 /* Look for the bridge -- its device ID will be 2 more
                    than HCA's device ID. */
                 while ((bridge = pci_get_device(mdev->pdev->vendor,