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-rw-r--r--drivers/infiniband/hw/mthca/mthca_cmd.c12
-rw-r--r--drivers/infiniband/hw/mthca/mthca_dev.h3
-rw-r--r--drivers/infiniband/hw/mthca/mthca_main.c23
-rw-r--r--drivers/infiniband/hw/mthca/mthca_mr.c20
-rw-r--r--drivers/infiniband/hw/mthca/mthca_profile.c10
5 files changed, 51 insertions, 17 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c
index 948a2861cae..343eca50787 100644
--- a/drivers/infiniband/hw/mthca/mthca_cmd.c
+++ b/drivers/infiniband/hw/mthca/mthca_cmd.c
@@ -1277,7 +1277,8 @@ int mthca_INIT_HCA(struct mthca_dev *dev,
int err;
#define INIT_HCA_IN_SIZE 0x200
-#define INIT_HCA_FLAGS_OFFSET 0x014
+#define INIT_HCA_FLAGS1_OFFSET 0x00c
+#define INIT_HCA_FLAGS2_OFFSET 0x014
#define INIT_HCA_QPC_OFFSET 0x020
#define INIT_HCA_QPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x10)
#define INIT_HCA_LOG_QP_OFFSET (INIT_HCA_QPC_OFFSET + 0x17)
@@ -1320,15 +1321,18 @@ int mthca_INIT_HCA(struct mthca_dev *dev,
memset(inbox, 0, INIT_HCA_IN_SIZE);
+ if (dev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
+ MTHCA_PUT(inbox, 0x1, INIT_HCA_FLAGS1_OFFSET);
+
#if defined(__LITTLE_ENDIAN)
- *(inbox + INIT_HCA_FLAGS_OFFSET / 4) &= ~cpu_to_be32(1 << 1);
+ *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) &= ~cpu_to_be32(1 << 1);
#elif defined(__BIG_ENDIAN)
- *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 1);
+ *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) |= cpu_to_be32(1 << 1);
#else
#error Host endianness not defined
#endif
/* Check port for UD address vector: */
- *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1);
+ *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) |= cpu_to_be32(1);
/* We leave wqe_quota, responder_exu, etc as 0 (default) */
diff --git a/drivers/infiniband/hw/mthca/mthca_dev.h b/drivers/infiniband/hw/mthca/mthca_dev.h
index ea48c897c7c..ad52edbefe9 100644
--- a/drivers/infiniband/hw/mthca/mthca_dev.h
+++ b/drivers/infiniband/hw/mthca/mthca_dev.h
@@ -64,7 +64,8 @@ enum {
MTHCA_FLAG_NO_LAM = 1 << 5,
MTHCA_FLAG_FMR = 1 << 6,
MTHCA_FLAG_MEMFREE = 1 << 7,
- MTHCA_FLAG_PCIE = 1 << 8
+ MTHCA_FLAG_PCIE = 1 << 8,
+ MTHCA_FLAG_SINAI_OPT = 1 << 9
};
enum {
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
index 9c849d27b06..d94837fbf16 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
diff --git a/drivers/infiniband/hw/mthca/mthca_mr.c b/drivers/infiniband/hw/mthca/mthca_mr.c
index 0b48048ad0f..698b6212576 100644
--- a/drivers/infiniband/hw/mthca/mthca_mr.c
+++ b/drivers/infiniband/hw/mthca/mthca_mr.c
@@ -76,6 +76,8 @@ struct mthca_mpt_entry {
#define MTHCA_MPT_STATUS_SW 0xF0
#define MTHCA_MPT_STATUS_HW 0x00
+#define SINAI_FMR_KEY_INC 0x1000000
+
/*
* Buddy allocator for MTT segments (currently not very efficient
* since it doesn't keep a free list and just searches linearly
@@ -330,6 +332,14 @@ static inline u32 key_to_hw_index(struct mthca_dev *dev, u32 key)
return tavor_key_to_hw_index(key);
}
+static inline u32 adjust_key(struct mthca_dev *dev, u32 key)
+{
+ if (dev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
+ return ((key << 20) & 0x800000) | (key & 0x7fffff);
+ else
+ return key;
+}
+
int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
u64 iova, u64 total_size, u32 access, struct mthca_mr *mr)
{
@@ -345,6 +355,7 @@ int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
key = mthca_alloc(&dev->mr_table.mpt_alloc);
if (key == -1)
return -ENOMEM;
+ key = adjust_key(dev, key);
mr->ibmr.rkey = mr->ibmr.lkey = hw_index_to_key(dev, key);
if (mthca_is_memfree(dev)) {
@@ -504,6 +515,7 @@ int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
key = mthca_alloc(&dev->mr_table.mpt_alloc);
if (key == -1)
return -ENOMEM;
+ key = adjust_key(dev, key);
idx = key & (dev->limits.num_mpts - 1);
mr->ibmr.rkey = mr->ibmr.lkey = hw_index_to_key(dev, key);
@@ -687,7 +699,10 @@ int mthca_arbel_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
++fmr->maps;
key = arbel_key_to_hw_index(fmr->ibmr.lkey);
- key += dev->limits.num_mpts;
+ if (dev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
+ key += SINAI_FMR_KEY_INC;
+ else
+ key += dev->limits.num_mpts;
fmr->ibmr.lkey = fmr->ibmr.rkey = arbel_hw_index_to_key(key);
*(u8 *) fmr->mem.arbel.mpt = MTHCA_MPT_STATUS_SW;
@@ -760,6 +775,9 @@ int __devinit mthca_init_mr_table(struct mthca_dev *dev)
else
dev->mthca_flags |= MTHCA_FLAG_FMR;
+ if (dev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
+ mthca_dbg(dev, "Memory key throughput optimization activated.\n");
+
err = mthca_buddy_init(&dev->mr_table.mtt_buddy,
fls(dev->limits.num_mtt_segs - 1));
diff --git a/drivers/infiniband/hw/mthca/mthca_profile.c b/drivers/infiniband/hw/mthca/mthca_profile.c
index 08a909371b0..58d44aa3c30 100644
--- a/drivers/infiniband/hw/mthca/mthca_profile.c
+++ b/drivers/infiniband/hw/mthca/mthca_profile.c
@@ -152,7 +152,7 @@ u64 mthca_make_profile(struct mthca_dev *dev,
}
if (total_size > mem_avail) {
mthca_err(dev, "Profile requires 0x%llx bytes; "
- "won't in 0x%llx bytes of context memory.\n",
+ "won't fit in 0x%llx bytes of context memory.\n",
(unsigned long long) total_size,
(unsigned long long) mem_avail);
kfree(profile);
@@ -262,6 +262,14 @@ u64 mthca_make_profile(struct mthca_dev *dev,
*/
dev->limits.num_pds = MTHCA_NUM_PDS;
+ if (dev->mthca_flags & MTHCA_FLAG_SINAI_OPT &&
+ init_hca->log_mpt_sz > 23) {
+ mthca_warn(dev, "MPT table too large (requested size 2^%d >= 2^24)\n",
+ init_hca->log_mpt_sz);
+ mthca_warn(dev, "Disabling memory key throughput optimization.\n");
+ dev->mthca_flags &= ~MTHCA_FLAG_SINAI_OPT;
+ }
+
/*
* For Tavor, FMRs use ioremapped PCI memory. For 32 bit
* systems it may use too much vmalloc space to map all MTT
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-04 07:37:36 +0000