diff options
| author | Karen Xie <kxie@chelsio.com> | 2014-12-12 04:13:41 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-12-12 17:22:29 +0100 |
| commit | f7bcd2e11107af39367fb726196f372f8ad05199 (patch) | |
| tree | 8be0f9b38f1b06fe5e287cd5f77763788221f0b3 /drivers/scsi/cxgbi | |
| parent | cxgb4i: additional types of negative advice (diff) | |
| download | linux-f7bcd2e11107af39367fb726196f372f8ad05199.tar.xz linux-f7bcd2e11107af39367fb726196f372f8ad05199.zip | |
cxgb4i: handle non-pdu-aligned rx data
Abort the connection upon receiving of cpl_rx_data, which means the pdu cannot
be recovered from the tcp stream. This generally is due to pdu header
corruption.
Signed-off-by: Karen Xie <kxie@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/scsi/cxgbi')
| -rw-r--r-- | drivers/scsi/cxgbi/cxgb4i/cxgb4i.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c index 8ca91fdfdc35..8b7e8f815357 100644 --- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c +++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c @@ -1037,6 +1037,27 @@ rel_skb: __kfree_skb(skb); } +static void do_rx_data(struct cxgbi_device *cdev, struct sk_buff *skb) +{ + struct cxgbi_sock *csk; + struct cpl_rx_data *cpl = (struct cpl_rx_data *)skb->data; + unsigned int tid = GET_TID(cpl); + struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); + struct tid_info *t = lldi->tids; + + csk = lookup_tid(t, tid); + if (!csk) { + pr_err("can't find connection for tid %u.\n", tid); + } else { + /* not expecting this, reset the connection. */ + pr_err("csk 0x%p, tid %u, rcv cpl_rx_data.\n", csk, tid); + spin_lock_bh(&csk->lock); + send_abort_req(csk); + spin_unlock_bh(&csk->lock); + } + __kfree_skb(skb); +} + static void do_rx_iscsi_hdr(struct cxgbi_device *cdev, struct sk_buff *skb) { struct cxgbi_sock *csk; @@ -1456,6 +1477,7 @@ cxgb4i_cplhandler_func cxgb4i_cplhandlers[NUM_CPL_CMDS] = { [CPL_SET_TCB_RPL] = do_set_tcb_rpl, [CPL_RX_DATA_DDP] = do_rx_data_ddp, [CPL_RX_ISCSI_DDP] = do_rx_data_ddp, + [CPL_RX_DATA] = do_rx_data, }; int cxgb4i_ofld_init(struct cxgbi_device *cdev) |