Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
new file mode 100644
index 0000000..9e782bc
--- /dev/null
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -0,0 +1,1123 @@
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * $Id: mthca_main.c 1396 2004-12-28 04:10:27Z roland $
+ */
+
+#include <linux/config.h>
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+
+#include "mthca_dev.h"
+#include "mthca_config_reg.h"
+#include "mthca_cmd.h"
+#include "mthca_profile.h"
+#include "mthca_memfree.h"
+
+MODULE_AUTHOR("Roland Dreier");
+MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_VERSION(DRV_VERSION);
+
+#ifdef CONFIG_PCI_MSI
+
+static int msi_x = 0;
+module_param(msi_x, int, 0444);
+MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
+
+static int msi = 0;
+module_param(msi, int, 0444);
+MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero");
+
+#else /* CONFIG_PCI_MSI */
+
+#define msi_x (0)
+#define msi (0)
+
+#endif /* CONFIG_PCI_MSI */
+
+static const char mthca_version[] __devinitdata =
+ "ib_mthca: Mellanox InfiniBand HCA driver v"
+ DRV_VERSION " (" DRV_RELDATE ")\n";
+
+static struct mthca_profile default_profile = {
+ .num_qp = 1 << 16,
+ .rdb_per_qp = 4,
+ .num_cq = 1 << 16,
+ .num_mcg = 1 << 13,
+ .num_mpt = 1 << 17,
+ .num_mtt = 1 << 20,
+ .num_udav = 1 << 15, /* Tavor only */
+ .uarc_size = 1 << 18, /* Arbel only */
+};
+
+static int __devinit mthca_tune_pci(struct mthca_dev *mdev)
+{
+ int cap;
+ u16 val;
+
+ /* First try to max out Read Byte Count */
+ cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX);
+ if (cap) {
+ if (pci_read_config_word(mdev->pdev, cap + PCI_X_CMD, &val)) {
+ mthca_err(mdev, "Couldn't read PCI-X command register, "
+ "aborting.\n");
+ return -ENODEV;
+ }
+ val = (val & ~PCI_X_CMD_MAX_READ) | (3 << 2);
+ if (pci_write_config_word(mdev->pdev, cap + PCI_X_CMD, val)) {
+ mthca_err(mdev, "Couldn't write PCI-X command register, "
+ "aborting.\n");
+ return -ENODEV;
+ }
+ } else if (mdev->hca_type == TAVOR)
+ mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
+
+ cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP);
+ if (cap) {
+ if (pci_read_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, &val)) {
+ mthca_err(mdev, "Couldn't read PCI Express device control "
+ "register, aborting.\n");
+ return -ENODEV;
+ }
+ val = (val & ~PCI_EXP_DEVCTL_READRQ) | (5 << 12);
+ if (pci_write_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, val)) {
+ mthca_err(mdev, "Couldn't write PCI Express device control "
+ "register, aborting.\n");
+ return -ENODEV;
+ }
+ } else if (mdev->hca_type == ARBEL_NATIVE ||
+ mdev->hca_type == ARBEL_COMPAT)
+ mthca_info(mdev, "No PCI Express capability, "
+ "not setting Max Read Request Size.\n");
+
+ return 0;
+}
+
+static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
+{
+ int err;
+ u8 status;
+
+ err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
+ if (err) {
+ mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
+ return err;
+ }
+ if (status) {
+ mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
+ "aborting.\n", status);
+ return -EINVAL;
+ }
+ if (dev_lim->min_page_sz > PAGE_SIZE) {
+ mthca_err(mdev, "HCA minimum page size of %d bigger than "
+ "kernel PAGE_SIZE of %ld, aborting.\n",
+ dev_lim->min_page_sz, PAGE_SIZE);
+ return -ENODEV;
+ }
+ if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
+ mthca_err(mdev, "HCA has %d ports, but we only support %d, "
+ "aborting.\n",
+ dev_lim->num_ports, MTHCA_MAX_PORTS);
+ return -ENODEV;
+ }
+
+ mdev->limits.num_ports = dev_lim->num_ports;
+ mdev->limits.vl_cap = dev_lim->max_vl;
+ mdev->limits.mtu_cap = dev_lim->max_mtu;
+ mdev->limits.gid_table_len = dev_lim->max_gids;
+ mdev->limits.pkey_table_len = dev_lim->max_pkeys;
+ mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
+ mdev->limits.max_sg = dev_lim->max_sg;
+ mdev->limits.reserved_qps = dev_lim->reserved_qps;
+ mdev->limits.reserved_srqs = dev_lim->reserved_srqs;
+ mdev->limits.reserved_eecs = dev_lim->reserved_eecs;
+ mdev->limits.reserved_cqs = dev_lim->reserved_cqs;
+ mdev->limits.reserved_eqs = dev_lim->reserved_eqs;
+ mdev->limits.reserved_mtts = dev_lim->reserved_mtts;
+ mdev->limits.reserved_mrws = dev_lim->reserved_mrws;
+ mdev->limits.reserved_uars = dev_lim->reserved_uars;
+ mdev->limits.reserved_pds = dev_lim->reserved_pds;
+
+ /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
+ May be doable since hardware supports it for SRQ.
+
+ IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
+
+ IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
+ supported by driver. */
+ mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
+ IB_DEVICE_PORT_ACTIVE_EVENT |
+ IB_DEVICE_SYS_IMAGE_GUID |
+ IB_DEVICE_RC_RNR_NAK_GEN;
+
+ if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
+ mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
+
+ if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
+ mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
+
+ if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
+ mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
+
+ if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
+ mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
+
+ if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
+ mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
+
+ if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
+ mdev->mthca_flags |= MTHCA_FLAG_SRQ;
+
+ return 0;
+}
+
+static int __devinit mthca_init_tavor(struct mthca_dev *mdev)
+{
+ u8 status;
+ int err;
+ struct mthca_dev_lim dev_lim;
+ struct mthca_profile profile;
+ struct mthca_init_hca_param init_hca;
+ struct mthca_adapter adapter;
+
+ err = mthca_SYS_EN(mdev, &status);
+ if (err) {
+ mthca_err(mdev, "SYS_EN command failed, aborting.\n");
+ return err;
+ }
+ if (status) {
+ mthca_err(mdev, "SYS_EN returned status 0x%02x, "
+ "aborting.\n", status);
+ return -EINVAL;
+ }
+
+ err = mthca_QUERY_FW(mdev, &status);
+ if (err) {
+ mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
+ goto err_disable;
+ }
+ if (status) {
+ mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
+ "aborting.\n", status);
+ err = -EINVAL;
+ goto err_disable;
+ }
+ err = mthca_QUERY_DDR(mdev, &status);
+ if (err) {
+ mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
+ goto err_disable;
+ }
+ if (status) {
+ mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
+ "aborting.\n", status);
+ err = -EINVAL;
+ goto err_disable;
+ }
+
+ err = mthca_dev_lim(mdev, &dev_lim);
+
+ profile = default_profile;
+ profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
+ profile.uarc_size = 0;
+
+ err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
+ if (err < 0)
+ goto err_disable;
+
+ err = mthca_INIT_HCA(mdev, &init_hca, &status);
+ if (err) {
+ mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
+ goto err_disable;
+ }
+ if (status) {
+ mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
+ "aborting.\n", status);
+ err = -EINVAL;
+ goto err_disable;
+ }
+
+ err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
+ if (err) {
+ mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
+ goto err_close;
+ }
+ if (status) {
+ mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
+ "aborting.\n", status);
+ err = -EINVAL;
+ goto err_close;
+ }
+
+ mdev->eq_table.inta_pin = adapter.inta_pin;
+ mdev->rev_id = adapter.revision_id;
+
+ return 0;
+
+err_close:
+ mthca_CLOSE_HCA(mdev, 0, &status);
+
+err_disable:
+ mthca_SYS_DIS(mdev, &status);
+
+ return err;
+}
+
+static int __devinit mthca_load_fw(struct mthca_dev *mdev)
+{
+ u8 status;
+ int err;
+
+ /* FIXME: use HCA-attached memory for FW if present */
+
+ mdev->fw.arbel.fw_icm =
+ mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
+ GFP_HIGHUSER | __GFP_NOWARN);
+ if (!mdev->fw.arbel.fw_icm) {
+ mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
+ return -ENOMEM;
+ }
+
+ err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
+ if (err) {
+ mthca_err(mdev, "MAP_FA command failed, aborting.\n");
+ goto err_free;
+ }
+ if (status) {
+ mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
+ err = -EINVAL;
+ goto err_free;
+ }
+ err = mthca_RUN_FW(mdev, &status);
+ if (err) {
+ mthca_err(mdev, "RUN_FW command failed, aborting.\n");
+ goto err_unmap_fa;
+ }
+ if (status) {
+ mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
+ err = -EINVAL;
+ goto err_unmap_fa;
+ }
+
+ return 0;
+
+err_unmap_fa:
+ mthca_UNMAP_FA(mdev, &status);
+
+err_free:
+ mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
+ return err;
+}
+
+static int __devinit mthca_init_icm(struct mthca_dev *mdev,
+ struct mthca_dev_lim *dev_lim,
+ struct mthca_init_hca_param *init_hca,
+ u64 icm_size)
+{
+ u64 aux_pages;
+ u8 status;
+ int err;
+
+ err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
+ if (err) {
+ mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
+ return err;
+ }
+ if (status) {
+ mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
+ "aborting.\n", status);
+ return -EINVAL;
+ }
+
+ mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
+ (unsigned long long) icm_size >> 10,
+ (unsigned long long) aux_pages << 2);
+
+ mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
+ GFP_HIGHUSER | __GFP_NOWARN);
+ if (!mdev->fw.arbel.aux_icm) {
+ mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
+ return -ENOMEM;
+ }
+
+ err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
+ if (err) {
+ mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
+ goto err_free_aux;
+ }
+ if (status) {
+ mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
+ err = -EINVAL;
+ goto err_free_aux;
+ }
+
+ err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
+ if (err) {
+ mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
+ goto err_unmap_aux;
+ }
+
+ mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
+ init_hca->mtt_seg_sz,
+ mdev->limits.num_mtt_segs,
+ mdev->limits.reserved_mtts, 1);
+ if (!mdev->mr_table.mtt_table) {
+ mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
+ err = -ENOMEM;
+ goto err_unmap_eq;
+ }
+
+ mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
+ dev_lim->mpt_entry_sz,
+ mdev->limits.num_mpts,
+ mdev->limits.reserved_mrws, 1);
+ if (!mdev->mr_table.mpt_table) {
+ mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
+ err = -ENOMEM;
+ goto err_unmap_mtt;
+ }
+
+ mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
+ dev_lim->qpc_entry_sz,
+ mdev->limits.num_qps,
+ mdev->limits.reserved_qps, 0);
+ if (!mdev->qp_table.qp_table) {
+ mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
+ err = -ENOMEM;
+ goto err_unmap_mpt;
+ }
+
+ mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
+ dev_lim->eqpc_entry_sz,
+ mdev->limits.num_qps,
+ mdev->limits.reserved_qps, 0);
+ if (!mdev->qp_table.eqp_table) {
+ mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
+ err = -ENOMEM;
+ goto err_unmap_qp;
+ }
+
+ mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
+ dev_lim->cqc_entry_sz,
+ mdev->limits.num_cqs,
+ mdev->limits.reserved_cqs, 0);
+ if (!mdev->cq_table.table) {
+ mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
+ err = -ENOMEM;
+ goto err_unmap_eqp;
+ }
+
+ /*
+ * It's not strictly required, but for simplicity just map the
+ * whole multicast group table now. The table isn't very big
+ * and it's a lot easier than trying to track ref counts.
+ */
+ mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
+ MTHCA_MGM_ENTRY_SIZE,
+ mdev->limits.num_mgms +
+ mdev->limits.num_amgms,
+ mdev->limits.num_mgms +
+ mdev->limits.num_amgms,
+ 0);
+ if (!mdev->mcg_table.table) {
+ mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
+ err = -ENOMEM;
+ goto err_unmap_cq;
+ }
+
+ return 0;
+
+err_unmap_cq:
+ mthca_free_icm_table(mdev, mdev->cq_table.table);
+
+err_unmap_eqp:
+ mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
+
+err_unmap_qp:
+ mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
+
+err_unmap_mpt:
+ mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
+
+err_unmap_mtt:
+ mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
+
+err_unmap_eq:
+ mthca_unmap_eq_icm(mdev);
+
+err_unmap_aux:
+ mthca_UNMAP_ICM_AUX(mdev, &status);
+
+err_free_aux:
+ mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
+
+ return err;
+}
+
+static int __devinit mthca_init_arbel(struct mthca_dev *mdev)
+{
+ struct mthca_dev_lim dev_lim;
+ struct mthca_profile profile;
+ struct mthca_init_hca_param init_hca;
+ struct mthca_adapter adapter;
+ u64 icm_size;
+ u8 status;
+ int err;
+
+ err = mthca_QUERY_FW(mdev, &status);
+ if (err) {
+ mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
+ return err;
+ }
+ if (status) {
+ mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
+ "aborting.\n", status);
+ return -EINVAL;
+ }
+
+ err = mthca_ENABLE_LAM(mdev, &status);
+ if (err) {
+ mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
+ return err;
+ }
+ if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
+ mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
+ mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
+ } else if (status) {
+ mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
+ "aborting.\n", status);
+ return -EINVAL;
+ }
+
+ err = mthca_load_fw(mdev);
+ if (err) {
+ mthca_err(mdev, "Failed to start FW, aborting.\n");
+ goto err_disable;
+ }
+
+ err = mthca_dev_lim(mdev, &dev_lim);
+ if (err) {
+ mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
+ goto err_stop_fw;
+ }
+
+ profile = default_profile;
+ profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
+ profile.num_udav = 0;
+
+ icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
+ if ((int) icm_size < 0) {
+ err = icm_size;
+ goto err_stop_fw;
+ }
+
+ err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
+ if (err)
+ goto err_stop_fw;
+
+ err = mthca_INIT_HCA(mdev, &init_hca, &status);
+ if (err) {
+ mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
+ goto err_free_icm;
+ }
+ if (status) {
+ mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
+ "aborting.\n", status);
+ err = -EINVAL;
+ goto err_free_icm;
+ }
+
+ err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
+ if (err) {
+ mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
+ goto err_free_icm;
+ }
+ if (status) {
+ mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
+ "aborting.\n", status);
+ err = -EINVAL;
+ goto err_free_icm;
+ }
+
+ mdev->eq_table.inta_pin = adapter.inta_pin;
+ mdev->rev_id = adapter.revision_id;
+
+ return 0;
+
+err_free_icm:
+ mthca_free_icm_table(mdev, mdev->cq_table.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);
+ mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
+ mthca_unmap_eq_icm(mdev);
+
+ mthca_UNMAP_ICM_AUX(mdev, &status);
+ mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
+
+err_stop_fw:
+ mthca_UNMAP_FA(mdev, &status);
+ mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
+
+err_disable:
+ if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
+ mthca_DISABLE_LAM(mdev, &status);
+
+ return err;
+}
+
+static int __devinit mthca_init_hca(struct mthca_dev *mdev)
+{
+ if (mdev->hca_type == ARBEL_NATIVE)
+ return mthca_init_arbel(mdev);
+ else
+ return mthca_init_tavor(mdev);
+}
+
+static int __devinit mthca_setup_hca(struct mthca_dev *dev)
+{
+ int err;
+ u8 status;
+
+ MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
+
+ err = mthca_init_uar_table(dev);
+ if (err) {
+ mthca_err(dev, "Failed to initialize "
+ "user access region table, aborting.\n");
+ return err;
+ }
+
+ err = mthca_uar_alloc(dev, &dev->driver_uar);
+ if (err) {
+ mthca_err(dev, "Failed to allocate driver access region, "
+ "aborting.\n");
+ goto err_uar_table_free;
+ }
+
+ dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
+ if (!dev->kar) {
+ mthca_err(dev, "Couldn't map kernel access region, "
+ "aborting.\n");
+ err = -ENOMEM;
+ goto err_uar_free;
+ }
+
+ err = mthca_init_pd_table(dev);
+ if (err) {
+ mthca_err(dev, "Failed to initialize "
+ "protection domain table, aborting.\n");
+ goto err_kar_unmap;
+ }
+
+ err = mthca_init_mr_table(dev);
+ if (err) {
+ mthca_err(dev, "Failed to initialize "
+ "memory region table, aborting.\n");
+ goto err_pd_table_free;
+ }
+
+ err = mthca_pd_alloc(dev, &dev->driver_pd);
+ if (err) {
+ mthca_err(dev, "Failed to create driver PD, "
+ "aborting.\n");
+ goto err_mr_table_free;
+ }
+
+ err = mthca_init_eq_table(dev);
+ if (err) {
+ mthca_err(dev, "Failed to initialize "
+ "event queue table, aborting.\n");
+ goto err_pd_free;
+ }
+
+ err = mthca_cmd_use_events(dev);
+ if (err) {
+ mthca_err(dev, "Failed to switch to event-driven "
+ "firmware commands, aborting.\n");
+ goto err_eq_table_free;
+ }
+
+ err = mthca_NOP(dev, &status);
+ if (err || status) {
+ mthca_err(dev, "NOP command failed to generate interrupt, aborting.\n");
+ if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X))
+ mthca_err(dev, "Try again with MSI/MSI-X disabled.\n");
+ else
+ mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
+
+ goto err_cmd_poll;
+ }
+
+ mthca_dbg(dev, "NOP command IRQ test passed\n");
+
+ err = mthca_init_cq_table(dev);
+ if (err) {
+ mthca_err(dev, "Failed to initialize "
+ "completion queue table, aborting.\n");
+ goto err_cmd_poll;
+ }
+
+ err = mthca_init_qp_table(dev);
+ if (err) {
+ mthca_err(dev, "Failed to initialize "
+ "queue pair table, aborting.\n");
+ goto err_cq_table_free;
+ }
+
+ err = mthca_init_av_table(dev);
+ if (err) {
+ mthca_err(dev, "Failed to initialize "
+ "address vector table, aborting.\n");
+ goto err_qp_table_free;
+ }
+
+ err = mthca_init_mcg_table(dev);
+ if (err) {
+ mthca_err(dev, "Failed to initialize "
+ "multicast group table, aborting.\n");
+ goto err_av_table_free;
+ }
+
+ return 0;
+
+err_av_table_free:
+ mthca_cleanup_av_table(dev);
+
+err_qp_table_free:
+ mthca_cleanup_qp_table(dev);
+
+err_cq_table_free:
+ mthca_cleanup_cq_table(dev);
+
+err_cmd_poll:
+ mthca_cmd_use_polling(dev);
+
+err_eq_table_free:
+ mthca_cleanup_eq_table(dev);
+
+err_pd_free:
+ mthca_pd_free(dev, &dev->driver_pd);
+
+err_mr_table_free:
+ mthca_cleanup_mr_table(dev);
+
+err_pd_table_free:
+ mthca_cleanup_pd_table(dev);
+
+err_kar_unmap:
+ iounmap(dev->kar);
+
+err_uar_free:
+ mthca_uar_free(dev, &dev->driver_uar);
+
+err_uar_table_free:
+ mthca_cleanup_uar_table(dev);
+ return err;
+}
+
+static int __devinit mthca_request_regions(struct pci_dev *pdev,
+ int ddr_hidden)
+{
+ int err;
+
+ /*
+ * We can't just use pci_request_regions() because the MSI-X
+ * table is right in the middle of the first BAR. If we did
+ * pci_request_region and grab all of the first BAR, then
+ * setting up MSI-X would fail, since the PCI core wants to do
+ * request_mem_region on the MSI-X vector table.
+ *
+ * So just request what we need right now, and request any
+ * other regions we need when setting up EQs.
+ */
+ if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
+ MTHCA_HCR_SIZE, DRV_NAME))
+ return -EBUSY;
+
+ err = pci_request_region(pdev, 2, DRV_NAME);
+ if (err)
+ goto err_bar2_failed;
+
+ if (!ddr_hidden) {
+ err = pci_request_region(pdev, 4, DRV_NAME);
+ if (err)
+ goto err_bar4_failed;
+ }
+
+ return 0;
+
+err_bar4_failed:
+ pci_release_region(pdev, 2);
+
+err_bar2_failed:
+ release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
+ MTHCA_HCR_SIZE);
+
+ return err;
+}
+
+static void mthca_release_regions(struct pci_dev *pdev,
+ int ddr_hidden)
+{
+ if (!ddr_hidden)
+ pci_release_region(pdev, 4);
+
+ pci_release_region(pdev, 2);
+
+ release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
+ MTHCA_HCR_SIZE);
+}
+
+static int __devinit mthca_enable_msi_x(struct mthca_dev *mdev)
+{
+ struct msix_entry entries[3];
+ int err;
+
+ entries[0].entry = 0;
+ entries[1].entry = 1;
+ entries[2].entry = 2;
+
+ err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
+ if (err) {
+ if (err > 0)
+ mthca_info(mdev, "Only %d MSI-X vectors available, "
+ "not using MSI-X\n", err);
+ return err;
+ }
+
+ mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
+ mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
+ mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector;
+
+ return 0;
+}
+
+static void mthca_close_hca(struct mthca_dev *mdev)
+{
+ u8 status;
+
+ mthca_CLOSE_HCA(mdev, 0, &status);
+
+ if (mdev->hca_type == ARBEL_NATIVE) {
+ mthca_free_icm_table(mdev, mdev->cq_table.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);
+ mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
+ mthca_unmap_eq_icm(mdev);
+
+ mthca_UNMAP_ICM_AUX(mdev, &status);
+ mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
+
+ mthca_UNMAP_FA(mdev, &status);
+ mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
+
+ if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
+ mthca_DISABLE_LAM(mdev, &status);
+ } else
+ mthca_SYS_DIS(mdev, &status);
+}
+
+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;
+
+ if (!mthca_version_printed) {
+ printk(KERN_INFO "%s", mthca_version);
+ ++mthca_version_printed;
+ }
+
+ printk(KERN_INFO PFX "Initializing %s (%s)\n",
+ pci_pretty_name(pdev), pci_name(pdev));
+
+ err = pci_enable_device(pdev);
+ if (err) {
+ dev_err(&pdev->dev, "Cannot enable PCI device, "
+ "aborting.\n");
+ return err;
+ }
+
+ /*
+ * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not
+ * be present)
+ */
+ if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
+ pci_resource_len(pdev, 0) != 1 << 20) {
+ dev_err(&pdev->dev, "Missing DCS, aborting.");
+ err = -ENODEV;
+ goto err_disable_pdev;
+ }
+ if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM) ||
+ pci_resource_len(pdev, 2) != 1 << 23) {
+ dev_err(&pdev->dev, "Missing UAR, aborting.");
+ err = -ENODEV;
+ goto err_disable_pdev;
+ }
+ if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
+ ddr_hidden = 1;
+
+ err = mthca_request_regions(pdev, ddr_hidden);
+ if (err) {
+ dev_err(&pdev->dev, "Cannot obtain PCI resources, "
+ "aborting.\n");
+ goto err_disable_pdev;
+ }
+
+ pci_set_master(pdev);
+
+ err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+ if (err) {
+ dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
+ err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ if (err) {
+ dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
+ goto err_free_res;
+ }
+ }
+ err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
+ if (err) {
+ dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
+ "consistent PCI DMA mask.\n");
+ err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ if (err) {
+ dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
+ "aborting.\n");
+ goto err_free_res;
+ }
+ }
+
+ mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
+ if (!mdev) {
+ dev_err(&pdev->dev, "Device struct alloc failed, "
+ "aborting.\n");
+ err = -ENOMEM;
+ goto err_free_res;
+ }
+
+ mdev->pdev = pdev;
+ mdev->hca_type = id->driver_data;
+
+ if (mdev->hca_type == ARBEL_NATIVE && !mthca_memfree_warned++)
+ mthca_warn(mdev, "Warning: native MT25208 mode support is incomplete. "
+ "Your HCA may not work properly.\n");
+
+ if (ddr_hidden)
+ mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
+
+ /*
+ * Now reset the HCA before we touch the PCI capabilities or
+ * attempt a firmware command, since a boot ROM may have left
+ * the HCA in an undefined state.
+ */
+ err = mthca_reset(mdev);
+ if (err) {
+ mthca_err(mdev, "Failed to reset HCA, aborting.\n");
+ goto err_free_dev;
+ }
+
+ if (msi_x && !mthca_enable_msi_x(mdev))
+ mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
+ if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) &&
+ !pci_enable_msi(pdev))
+ mdev->mthca_flags |= MTHCA_FLAG_MSI;
+
+ sema_init(&mdev->cmd.hcr_sem, 1);
+ sema_init(&mdev->cmd.poll_sem, 1);
+ mdev->cmd.use_events = 0;
+
+ mdev->hcr = ioremap(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, MTHCA_HCR_SIZE);
+ if (!mdev->hcr) {
+ mthca_err(mdev, "Couldn't map command register, "
+ "aborting.\n");
+ err = -ENOMEM;
+ goto err_free_dev;
+ }
+
+ err = mthca_tune_pci(mdev);
+ if (err)
+ goto err_iounmap;
+
+ err = mthca_init_hca(mdev);
+ if (err)
+ goto err_iounmap;
+
+ err = mthca_setup_hca(mdev);
+ if (err)
+ goto err_close;
+
+ err = mthca_register_device(mdev);
+ if (err)
+ goto err_cleanup;
+
+ err = mthca_create_agents(mdev);
+ if (err)
+ goto err_unregister;
+
+ pci_set_drvdata(pdev, mdev);
+
+ return 0;
+
+err_unregister:
+ mthca_unregister_device(mdev);
+
+err_cleanup:
+ mthca_cleanup_mcg_table(mdev);
+ mthca_cleanup_av_table(mdev);
+ mthca_cleanup_qp_table(mdev);
+ mthca_cleanup_cq_table(mdev);
+ mthca_cmd_use_polling(mdev);
+ mthca_cleanup_eq_table(mdev);
+
+ mthca_pd_free(mdev, &mdev->driver_pd);
+
+ mthca_cleanup_mr_table(mdev);
+ mthca_cleanup_pd_table(mdev);
+ mthca_cleanup_uar_table(mdev);
+
+err_close:
+ mthca_close_hca(mdev);
+
+err_iounmap:
+ iounmap(mdev->hcr);
+
+err_free_dev:
+ if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
+ pci_disable_msix(pdev);
+ if (mdev->mthca_flags & MTHCA_FLAG_MSI)
+ pci_disable_msi(pdev);
+
+ ib_dealloc_device(&mdev->ib_dev);
+
+err_free_res:
+ mthca_release_regions(pdev, ddr_hidden);
+
+err_disable_pdev:
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+ return err;
+}
+
+static void __devexit mthca_remove_one(struct pci_dev *pdev)
+{
+ struct mthca_dev *mdev = pci_get_drvdata(pdev);
+ u8 status;
+ int p;
+
+ if (mdev) {
+ mthca_free_agents(mdev);
+ mthca_unregister_device(mdev);
+
+ for (p = 1; p <= mdev->limits.num_ports; ++p)
+ mthca_CLOSE_IB(mdev, p, &status);
+
+ mthca_cleanup_mcg_table(mdev);
+ mthca_cleanup_av_table(mdev);
+ mthca_cleanup_qp_table(mdev);
+ mthca_cleanup_cq_table(mdev);
+ mthca_cmd_use_polling(mdev);
+ mthca_cleanup_eq_table(mdev);
+
+ mthca_pd_free(mdev, &mdev->driver_pd);
+
+ mthca_cleanup_mr_table(mdev);
+ mthca_cleanup_pd_table(mdev);
+
+ iounmap(mdev->kar);
+ mthca_uar_free(mdev, &mdev->driver_uar);
+ mthca_cleanup_uar_table(mdev);
+
+ mthca_close_hca(mdev);
+
+ iounmap(mdev->hcr);
+
+ if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
+ pci_disable_msix(pdev);
+ if (mdev->mthca_flags & MTHCA_FLAG_MSI)
+ pci_disable_msi(pdev);
+
+ ib_dealloc_device(&mdev->ib_dev);
+ mthca_release_regions(pdev, mdev->mthca_flags &
+ MTHCA_FLAG_DDR_HIDDEN);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+ }
+}
+
+static struct pci_device_id mthca_pci_table[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
+ .driver_data = TAVOR },
+ { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
+ .driver_data = TAVOR },
+ { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
+ .driver_data = ARBEL_COMPAT },
+ { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
+ .driver_data = ARBEL_COMPAT },
+ { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
+ .driver_data = ARBEL_NATIVE },
+ { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
+ .driver_data = ARBEL_NATIVE },
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, mthca_pci_table);
+
+static struct pci_driver mthca_driver = {
+ .name = "ib_mthca",
+ .id_table = mthca_pci_table,
+ .probe = mthca_init_one,
+ .remove = __devexit_p(mthca_remove_one)
+};
+
+static int __init mthca_init(void)
+{
+ int ret;
+
+ ret = pci_register_driver(&mthca_driver);
+ return ret < 0 ? ret : 0;
+}
+
+static void __exit mthca_cleanup(void)
+{
+ pci_unregister_driver(&mthca_driver);
+}
+
+module_init(mthca_init);
+module_exit(mthca_cleanup);