* 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/module.h>
#include <linux/errno.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
+#include <linux/gfp.h>
#include "mthca_dev.h"
#include "mthca_config_reg.h"
#include "mthca_cmd.h"
#include "mthca_profile.h"
#include "mthca_memfree.h"
+#include "mthca_wqe.h"
MODULE_AUTHOR("Roland Dreier");
MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver");
#ifdef CONFIG_PCI_MSI
-static int msi_x = 0;
+static int msi_x = 1;
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 */
MODULE_PARM_DESC(fmr_reserved_mtts,
"number of memory translation table segments reserved for FMR");
-static const char mthca_version[] __devinitdata =
+static int log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8);
+module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
+MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-5)");
+
+static char mthca_version[] __devinitdata =
DRV_NAME ": Mellanox InfiniBand HCA driver v"
DRV_VERSION " (" DRV_RELDATE ")\n";
static int mthca_tune_pci(struct mthca_dev *mdev)
{
- int cap;
- u16 val;
-
if (!tune_pci)
return 0;
/* 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");
+ if (pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX)) {
+ if (pcix_set_mmrbc(mdev->pdev, pcix_get_max_mmrbc(mdev->pdev))) {
+ mthca_err(mdev, "Couldn't set PCI-X max read count, "
+ "aborting.\n");
return -ENODEV;
}
} 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);
- 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");
+ if (pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP)) {
+ if (pcie_set_readrq(mdev->pdev, 4096)) {
+ mthca_err(mdev, "Couldn't write PCI Express read request, "
+ "aborting.\n");
return -ENODEV;
}
} else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
int err;
u8 status;
+ mdev->limits.mtt_seg_size = (1 << log_mtts_per_seg) * 8;
err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
if (err) {
mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
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;
+ /*
+ * Need to allow for worst case send WQE overhead and check
+ * whether max_desc_sz imposes a lower limit than max_sg; UD
+ * send has the biggest overhead.
+ */
+ mdev->limits.max_sg = min_t(int, dev_lim->max_sg,
+ (dev_lim->max_desc_sz -
+ sizeof (struct mthca_next_seg) -
+ (mthca_is_memfree(mdev) ?
+ sizeof (struct mthca_arbel_ud_seg) :
+ sizeof (struct mthca_tavor_ud_seg))) /
+ sizeof (struct mthca_data_seg));
mdev->limits.max_wqes = dev_lim->max_qp_sz;
mdev->limits.max_qp_init_rdma = dev_lim->max_requester_per_qp;
mdev->limits.reserved_qps = dev_lim->reserved_qps;
if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
mdev->mthca_flags |= MTHCA_FLAG_SRQ;
+ if (mthca_is_memfree(mdev))
+ if (dev_lim->flags & DEV_LIM_FLAG_IPOIB_CSUM)
+ mdev->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
+
return 0;
}
static int mthca_init_tavor(struct mthca_dev *mdev)
{
+ s64 size;
u8 status;
int err;
struct mthca_dev_lim dev_lim;
if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
profile.num_srq = dev_lim.max_srqs;
- err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
- if (err < 0)
+ size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
+ if (size < 0) {
+ err = size;
goto err_disable;
+ }
err = mthca_INIT_HCA(mdev, &init_hca, &status);
if (err) {
}
/* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */
- mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * MTHCA_MTT_SEG_SIZE,
- dma_get_cache_alignment()) / MTHCA_MTT_SEG_SIZE;
+ mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * mdev->limits.mtt_seg_size,
+ dma_get_cache_alignment()) / mdev->limits.mtt_seg_size;
mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
- MTHCA_MTT_SEG_SIZE,
+ mdev->limits.mtt_seg_size,
mdev->limits.num_mtt_segs,
mdev->limits.reserved_mtts,
1, 0);
struct mthca_dev_lim dev_lim;
struct mthca_profile profile;
struct mthca_init_hca_param init_hca;
- u64 icm_size;
+ s64 icm_size;
u8 status;
int err;
profile.num_srq = dev_lim.max_srqs;
icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
- if ((int) icm_size < 0) {
+ if (icm_size < 0) {
err = icm_size;
goto err_stop_fw;
}
}
mdev->eq_table.inta_pin = adapter.inta_pin;
- mdev->rev_id = adapter.revision_id;
+ if (!mthca_is_memfree(mdev))
+ mdev->rev_id = adapter.revision_id;
memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
return 0;
err = mthca_NOP(dev, &status);
if (err || status) {
- mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n",
- dev->mthca_flags & MTHCA_FLAG_MSI_X ?
- dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector :
- dev->pdev->irq);
- if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X))
- mthca_err(dev, "Try again with MSI/MSI-X disabled.\n");
- else
+ if (dev->mthca_flags & MTHCA_FLAG_MSI_X) {
+ mthca_warn(dev, "NOP command failed to generate interrupt "
+ "(IRQ %d).\n",
+ dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector);
+ mthca_warn(dev, "Trying again with MSI-X disabled.\n");
+ } else {
+ mthca_err(dev, "NOP command failed to generate interrupt "
+ "(IRQ %d), aborting.\n",
+ dev->pdev->irq);
mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
+ }
goto err_cmd_poll;
}
return err;
}
-static int 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 mthca_enable_msi_x(struct mthca_dev *mdev)
{
struct msix_entry entries[3];
u64 latest_fw;
u32 flags;
} mthca_hca_table[] = {
- [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 4, 0),
+ [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 5, 0),
.flags = 0 },
- [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 600),
+ [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200),
.flags = MTHCA_FLAG_PCIE },
- [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 400),
+ [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 3, 0),
.flags = MTHCA_FLAG_MEMFREE |
MTHCA_FLAG_PCIE },
- [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 1, 0),
+ [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 2, 0),
.flags = MTHCA_FLAG_MEMFREE |
MTHCA_FLAG_PCIE |
MTHCA_FLAG_SINAI_OPT }
if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
ddr_hidden = 1;
- err = mthca_request_regions(pdev, ddr_hidden);
+ err = pci_request_regions(pdev, DRV_NAME);
if (err) {
dev_err(&pdev->dev, "Cannot obtain PCI resources, "
"aborting.\n");
pci_set_master(pdev);
- err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
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);
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
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);
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
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);
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
"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;
-
if (mthca_cmd_init(mdev)) {
mthca_err(mdev, "Failed to init command interface, aborting.\n");
goto err_free_dev;
goto err_cmd;
if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) {
- mthca_warn(mdev, "HCA FW version %d.%d.%d is old (%d.%d.%d is current).\n",
+ mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n",
(int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
(int) (mdev->fw_ver & 0xffff),
(int) (mthca_hca_table[hca_type].latest_fw >> 32),
mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
}
+ if (msi_x && !mthca_enable_msi_x(mdev))
+ mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
+
err = mthca_setup_hca(mdev);
+ if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) {
+ if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
+ pci_disable_msix(pdev);
+ mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X;
+
+ err = mthca_setup_hca(mdev);
+ }
+
if (err)
goto err_close;
pci_set_drvdata(pdev, mdev);
mdev->hca_type = hca_type;
+ mdev->active = true;
+
return 0;
err_unregister:
mthca_cleanup_uar_table(mdev);
err_close:
+ if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
+ pci_disable_msix(pdev);
+
mthca_close_hca(mdev);
err_cmd:
mthca_cmd_cleanup(mdev);
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);
+ pci_release_regions(pdev);
err_disable_pdev:
pci_disable_device(pdev);
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_release_regions(pdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
}
int __mthca_restart_one(struct pci_dev *pdev)
{
struct mthca_dev *mdev;
+ int hca_type;
mdev = pci_get_drvdata(pdev);
if (!mdev)
return -ENODEV;
+ hca_type = mdev->hca_type;
__mthca_remove_one(pdev);
- return __mthca_init_one(pdev, mdev->hca_type);
+ return __mthca_init_one(pdev, hca_type);
}
static int __devinit mthca_init_one(struct pci_dev *pdev,
const struct pci_device_id *id)
{
- static int mthca_version_printed = 0;
int ret;
mutex_lock(&mthca_device_mutex);
- if (!mthca_version_printed) {
- printk(KERN_INFO "%s", mthca_version);
- ++mthca_version_printed;
- }
+ printk_once(KERN_INFO "%s", mthca_version);
if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n",
hca_profile.fmr_reserved_mtts);
}
+
+ if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 5)) {
+ printk(KERN_WARNING PFX "bad log_mtts_per_seg (%d). Using default - %d\n",
+ log_mtts_per_seg, ilog2(MTHCA_MTT_SEG_SIZE / 8));
+ log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8);
+ }
}
static int __init mthca_init(void)