[SCSI] scsi_tcp: rm data rx and tx tfms
We currently allocated seperate tfms for data and header digests. There
is no reason for this since we can never calculate a rx header and
digest at the same time. Same for sends. So this patch removes the data
tfms and has the send and recv sides use the rx_tfm or tx_tfm.
I also made the connection creation code preallocate the tfms because I
thought I hit a bug where I changed the digests settings during a
relogin but could not allocate the tfm and then we just failed.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/iscsi_tcp.h b/drivers/scsi/iscsi_tcp.h
index 7e40e94..609f477 100644
--- a/drivers/scsi/iscsi_tcp.h
+++ b/drivers/scsi/iscsi_tcp.h
@@ -81,10 +81,6 @@
* stop to terminate */
/* iSCSI connection-wide sequencing */
int hdr_size; /* PDU header size */
-
- struct crypto_tfm *rx_tfm; /* CRC32C (Rx) */
- struct crypto_tfm *data_rx_tfm; /* CRC32C (Rx) for data */
-
/* control data */
struct iscsi_tcp_recv in; /* TCP receive context */
int in_progress; /* connection state machine */
@@ -94,9 +90,9 @@
void (*old_state_change)(struct sock *);
void (*old_write_space)(struct sock *);
- /* xmit */
+ /* data and header digests */
struct crypto_tfm *tx_tfm; /* CRC32C (Tx) */
- struct crypto_tfm *data_tx_tfm; /* CRC32C (Tx) for data */
+ struct crypto_tfm *rx_tfm; /* CRC32C (Rx) */
/* MIB custom statistics */
uint32_t sendpage_failures_cnt;
