Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 276d6814 authored by Yi Zou's avatar Yi Zou Committed by James Bottomley
Browse files

[SCSI] libfc: use lso_max for sequence offload 



Make sure for large send is supported by LLD in outgoing FCP data, we are only
sending the lso_max a time in one single large send, since that is what
supported by LLD.

Signed-off-by: default avatarYi Zou <yi.zou@intel.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
parent ea1e9a9d

drivers/scsi/libfc/fc_fcp.c

+7 −1
Original line number Diff line number Diff line
@@ -435,7 +435,13 @@ static int fc_fcp_send_data(struct fc_fcp_pkt *fsp, struct fc_seq *seq, 
	 * burst length (t_blen) to seq_blen, otherwise set t_blen

	 * to max FC frame payload previously set in fsp->max_payload.

	 */

	t_blen = lp->seq_offload ? seq_blen : fsp->max_payload;

	t_blen = fsp->max_payload;

	if (lp->seq_offload) {

		t_blen = min(seq_blen, (size_t)lp->lso_max);

		FC_DEBUG_FCP("fsp=%p:lso:blen=%zx lso_max=0x%x t_blen=%zx\n",

			   fsp, seq_blen, lp->lso_max, t_blen);

	}



	WARN_ON(t_blen < FC_MIN_MAX_PAYLOAD);

	if (t_blen > 512)

		t_blen &= ~(512 - 1);	/* round down to block size */