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Commit 4360ca9c authored by James Smart's avatar James Smart Committed by Martin K. Petersen
Browse files

lpfc: Fix external loopback failure. 



Fix external loopback failure.

Rx sequence reassembly was incorrect.

Signed-off-by: default avatarDick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: default avatarJames Smart <james.smart@avagotech.com>
Reviewed-by: default avatarHannes Reinicke <hare@suse.de>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 01c73bbc

drivers/scsi/lpfc/lpfc_sli.c

+13 −2
Original line number Diff line number Diff line
@@ -14842,10 +14842,12 @@ lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf) 
	struct lpfc_dmabuf *h_buf;

	struct hbq_dmabuf *seq_dmabuf = NULL;

	struct hbq_dmabuf *temp_dmabuf = NULL;

	uint8_t	found = 0;















	INIT_LIST_HEAD(&dmabuf->dbuf.list);















	dmabuf->time_stamp = jiffies;















	new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;



























	/* Use the hdr_buf to find the sequence that this frame belongs to */















	list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {















		temp_hdr = (struct fc_frame_header *)h_buf->virt;










@@ -14885,7 +14887,8 @@ lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)













		return seq_dmabuf;















	}















	/* find the correct place in the sequence to insert this frame */













	list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {













	d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);













	while (!found) {















		temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);















		temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;















		/*









@@ -14895,9 +14898,17 @@ lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)













		if (be16_to_cpu(new_hdr->fh_seq_cnt) >















			be16_to_cpu(temp_hdr->fh_seq_cnt)) {















			list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);













			return seq_dmabuf;













			found = 1;













			break;















		}

























		if (&d_buf->list == &seq_dmabuf->dbuf.list)













			break;













		d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);















	}

























	if (found)













		return seq_dmabuf;















	return NULL;















}