diff options
| author | Eli Cohen <eli@mellanox.co.il> | 2006-03-02 12:40:46 -0800 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-03-20 10:08:22 -0800 |
| commit | 651eaac92894f8b6761c51b6637ea9cacea7fba2 (patch) | |
| tree | 8be06461ef870b7d130ebce39f55fe93af6ac542 /drivers/infiniband/hw/mthca/mthca_main.c | |
| parent | 27d56300647f6e76847bc2407d7abc782fe87495 (diff) | |
IB/mthca: Optimize large messages on Sinai HCAs
Sinai (one-port PCI Express) HCAs get improved throughput for messages
bigger than 80 KB in DDR mode if memory keys are formatted in a
specific way. The enhancement only works if the memory key table is
smaller than 2^24 entries. For larger tables, the enhancement is off
and a warning is printed (to avoid silent performance loss).
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Michael Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_main.c')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_main.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c index 9c849d27b06e..d94837fbf162 100644 --- a/drivers/infiniband/hw/mthca/mthca_main.c +++ b/drivers/infiniband/hw/mthca/mthca_main.c @@ -935,13 +935,19 @@ enum { static struct { u64 latest_fw; - int is_memfree; - int is_pcie; + u32 flags; } mthca_hca_table[] = { - [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 3, 3), .is_memfree = 0, .is_pcie = 0 }, - [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 0), .is_memfree = 0, .is_pcie = 1 }, - [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 0), .is_memfree = 1, .is_pcie = 1 }, - [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 0, 1), .is_memfree = 1, .is_pcie = 1 } + [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 3, 3), + .flags = 0 }, + [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 0), + .flags = MTHCA_FLAG_PCIE }, + [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 0), + .flags = MTHCA_FLAG_MEMFREE | + MTHCA_FLAG_PCIE }, + [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 0, 1), + .flags = MTHCA_FLAG_MEMFREE | + MTHCA_FLAG_PCIE | + MTHCA_FLAG_SINAI_OPT } }; static int __devinit mthca_init_one(struct pci_dev *pdev, @@ -1031,12 +1037,9 @@ static int __devinit mthca_init_one(struct pci_dev *pdev, mdev->pdev = pdev; + mdev->mthca_flags = mthca_hca_table[id->driver_data].flags; 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 |