diff options
| author | Or Gerlitz <ogerlitz@mellanox.com> | 2011-08-01 21:14:09 +0000 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2011-08-17 09:45:07 -0700 |
| commit | 200ae1a08bec8f3fedfcfe94c892d9a024db4e46 (patch) | |
| tree | a5ea0224f3bb7998991a4c9e39f6f8aea7c70ba4 /drivers/infiniband/ulp | |
| parent | 0ace64b85ea7b90e3bffe408b9d7c3364692bfa4 (diff) | |
IB/iser: Support iSCSI PDU padding
RFC3270 mandates that iSCSI PDUs are padded to the closest integer
number of four byte words. Fix the iser code to support that on both
the TX/RX flows.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.co.il>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/ulp')
| -rw-r--r-- | drivers/infiniband/ulp/iser/iscsi_iser.c | 10 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/iser/iser_initiator.c | 2 |
2 files changed, 8 insertions, 4 deletions
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 8db008de539..9c61b9c2c59 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -101,13 +101,17 @@ iscsi_iser_recv(struct iscsi_conn *conn, /* verify PDU length */ datalen = ntoh24(hdr->dlength); - if (datalen != rx_data_len) { - printk(KERN_ERR "iscsi_iser: datalen %d (hdr) != %d (IB) \n", - datalen, rx_data_len); + if (datalen > rx_data_len || (datalen + 4) < rx_data_len) { + iser_err("wrong datalen %d (hdr), %d (IB)\n", + datalen, rx_data_len); rc = ISCSI_ERR_DATALEN; goto error; } + if (datalen != rx_data_len) + iser_dbg("aligned datalen (%d) hdr, %d (IB)\n", + datalen, rx_data_len); + /* read AHS */ ahslen = hdr->hlength * 4; diff --git a/drivers/infiniband/ulp/iser/iser_initiator.c b/drivers/infiniband/ulp/iser/iser_initiator.c index 5745b7fe158..f299de6b419 100644 --- a/drivers/infiniband/ulp/iser/iser_initiator.c +++ b/drivers/infiniband/ulp/iser/iser_initiator.c @@ -412,7 +412,7 @@ int iser_send_control(struct iscsi_conn *conn, memcpy(iser_conn->ib_conn->login_buf, task->data, task->data_count); tx_dsg->addr = iser_conn->ib_conn->login_dma; - tx_dsg->length = data_seg_len; + tx_dsg->length = task->data_count; tx_dsg->lkey = device->mr->lkey; mdesc->num_sge = 2; } |