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[PATCH] IB/mthca: add HCA board ID to sysfs info

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Add support for reporting HCA board ID returned from QUERY_ADAPTER
firmware command through sysfs.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Michael S. Tsirkin
2005-08-13 21:19:38 -07:00
committed by Roland Dreier
parent 97f52eb438
commit 2e8b981c5d
5 changed files with 109 additions and 69 deletions
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32
drivers/infiniband/hw/mthca/mthca_cmd.c
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@@ -1085,6 +1085,34 @@ out:
return err;
}
static void get_board_id(void *vsd, char *board_id)
{
int i;
#define VSD_OFFSET_SIG1 0x00
#define VSD_OFFSET_SIG2 0xde
#define VSD_OFFSET_MLX_BOARD_ID 0xd0
#define VSD_OFFSET_TS_BOARD_ID 0x20
#define VSD_SIGNATURE_TOPSPIN 0x5ad
memset(board_id, 0, MTHCA_BOARD_ID_LEN);
if (be16_to_cpup(vsd + VSD_OFFSET_SIG1) == VSD_SIGNATURE_TOPSPIN &&
be16_to_cpup(vsd + VSD_OFFSET_SIG2) == VSD_SIGNATURE_TOPSPIN) {
strlcpy(board_id, vsd + VSD_OFFSET_TS_BOARD_ID, MTHCA_BOARD_ID_LEN);
} else {
/*
* The board ID is a string but the firmware byte
* swaps each 4-byte word before passing it back to
* us. Therefore we need to swab it before printing.
*/
for (i = 0; i < 4; ++i)
((u32 *) board_id)[i] =
swab32(*(u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4));
}
}
int mthca_QUERY_ADAPTER(struct mthca_dev *dev,
struct mthca_adapter *adapter, u8 *status)
{
@@ -1097,6 +1125,7 @@ int mthca_QUERY_ADAPTER(struct mthca_dev *dev,
#define QUERY_ADAPTER_DEVICE_ID_OFFSET 0x04
#define QUERY_ADAPTER_REVISION_ID_OFFSET 0x08
#define QUERY_ADAPTER_INTA_PIN_OFFSET 0x10
#define QUERY_ADAPTER_VSD_OFFSET 0x20
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(mailbox))
@@ -1114,6 +1143,9 @@ int mthca_QUERY_ADAPTER(struct mthca_dev *dev,
MTHCA_GET(adapter->revision_id, outbox, QUERY_ADAPTER_REVISION_ID_OFFSET);
MTHCA_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET);
get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4,
adapter->board_id);
out:
mthca_free_mailbox(dev, mailbox);
return err;