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[PATCH] IB/mthca: Align FW command mailboxes to 4K

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Future versions of Mellanox HCA firmware will require command mailboxes to be
aligned to 4K.  Support this by using a pci_pool to allocate all mailboxes.
This has the added benefit of shrinking the source and text of mthca.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Roland Dreier
2005-06-27 14:36:45 -07:00
committed by Linus Torvalds
parent 80fd823873
commit ed878458ee
8 changed files with 329 additions and 422 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
drivers/infiniband/hw/mthca/mthca_mr.c
View File

@@ -246,21 +246,23 @@ void mthca_free_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt)
int mthca_write_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt,
int start_index, u64 *buffer_list, int list_len)
{
struct mthca_mailbox *mailbox;
u64 *mtt_entry;
int err = 0;
u8 status;
int i;
mtt_entry = (u64 *) __get_free_page(GFP_KERNEL);
if (!mtt_entry)
return -ENOMEM;
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
mtt_entry = mailbox->buf;
while (list_len > 0) {
mtt_entry[0] = cpu_to_be64(dev->mr_table.mtt_base +
mtt->first_seg * MTHCA_MTT_SEG_SIZE +
start_index * 8);
mtt_entry[1] = 0;
for (i = 0; i < list_len && i < PAGE_SIZE / 8 - 2; ++i)
for (i = 0; i < list_len && i < MTHCA_MAILBOX_SIZE / 8 - 2; ++i)
mtt_entry[i + 2] = cpu_to_be64(buffer_list[i] |
MTHCA_MTT_FLAG_PRESENT);
@@ -271,7 +273,7 @@ int mthca_write_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt,
if (i & 1)
mtt_entry[i + 2] = 0;
err = mthca_WRITE_MTT(dev, mtt_entry, (i + 1) & ~1, &status);
err = mthca_WRITE_MTT(dev, mailbox, (i + 1) & ~1, &status);
if (err) {
mthca_warn(dev, "WRITE_MTT failed (%d)\n", err);
goto out;
@@ -289,7 +291,7 @@ int mthca_write_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt,
}
out:
free_page((unsigned long) mtt_entry);
mthca_free_mailbox(dev, mailbox);
return err;
}
@@ -332,7 +334,7 @@ static inline u32 key_to_hw_index(struct mthca_dev *dev, u32 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)
{
void *mailbox;
struct mthca_mailbox *mailbox;
struct mthca_mpt_entry *mpt_entry;
u32 key;
int i;
@@ -354,13 +356,12 @@ int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
goto err_out_mpt_free;
}
mailbox = kmalloc(sizeof *mpt_entry + MTHCA_CMD_MAILBOX_EXTRA,
GFP_KERNEL);
if (!mailbox) {
err = -ENOMEM;
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(mailbox)) {
err = PTR_ERR(mailbox);
goto err_out_table;
}
mpt_entry = MAILBOX_ALIGN(mailbox);
mpt_entry = mailbox->buf;
mpt_entry->flags = cpu_to_be32(MTHCA_MPT_FLAG_SW_OWNS |
MTHCA_MPT_FLAG_MIO |
@@ -394,7 +395,7 @@ int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
}
}
err = mthca_SW2HW_MPT(dev, mpt_entry,
err = mthca_SW2HW_MPT(dev, mailbox,
key & (dev->limits.num_mpts - 1),
&status);
if (err) {
@@ -407,11 +408,11 @@ int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
goto err_out_mailbox;
}
kfree(mailbox);
mthca_free_mailbox(dev, mailbox);
return err;
err_out_mailbox:
kfree(mailbox);
mthca_free_mailbox(dev, mailbox);
err_out_table:
mthca_table_put(dev, dev->mr_table.mpt_table, key);
@@ -487,7 +488,7 @@ int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
u32 access, struct mthca_fmr *mr)
{
struct mthca_mpt_entry *mpt_entry;
void *mailbox;
struct mthca_mailbox *mailbox;
u64 mtt_seg;
u32 key, idx;
u8 status;
@@ -538,12 +539,11 @@ int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
} else
mr->mem.tavor.mtts = dev->mr_table.tavor_fmr.mtt_base + mtt_seg;
mailbox = kmalloc(sizeof *mpt_entry + MTHCA_CMD_MAILBOX_EXTRA,
GFP_KERNEL);
if (!mailbox)
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(mailbox))
goto err_out_free_mtt;
mpt_entry = MAILBOX_ALIGN(mailbox);
mpt_entry = mailbox->buf;
mpt_entry->flags = cpu_to_be32(MTHCA_MPT_FLAG_SW_OWNS |
MTHCA_MPT_FLAG_MIO |
@@ -568,7 +568,7 @@ int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
}
}
err = mthca_SW2HW_MPT(dev, mpt_entry,
err = mthca_SW2HW_MPT(dev, mailbox,
key & (dev->limits.num_mpts - 1),
&status);
if (err) {
@@ -582,11 +582,11 @@ int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
goto err_out_mailbox_free;
}
kfree(mailbox);
mthca_free_mailbox(dev, mailbox);
return 0;
err_out_mailbox_free:
kfree(mailbox);
mthca_free_mailbox(dev, mailbox);
err_out_free_mtt:
mthca_free_mtt(dev, mr->mtt);