[SCSI] cxgb3i: added per-task data to track transmit progress (949847d1) · Commits · 戴 / test

drivers/scsi/cxgb3i/cxgb3i.h

+21 −0

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@
		#include <linux/list.h>
		#include <linux/netdevice.h>
		#include <linux/scatterlist.h>
		#include <linux/skbuff.h>
		#include <scsi/libiscsi_tcp.h>

		/* from cxgb3 LLD */
		@@ -113,6 +114,26 @@ struct cxgb3i_endpoint {
		struct cxgb3i_conn *cconn;
		};

		/**
		* struct cxgb3i_task_data - private iscsi task data
		*
		* @nr_frags: # of coalesced page frags (from scsi sgl)
		* @frags: coalesced page frags (from scsi sgl)
		* @skb: tx pdu skb
		* @offset: data offset for the next pdu
		* @count: max. possible pdu payload
		* @sgoffset: offset to the first sg entry for a given offset
		*/
		#define MAX_PDU_FRAGS ((ULP2_MAX_PDU_PAYLOAD + 512 - 1) / 512)
		struct cxgb3i_task_data {
		unsigned short nr_frags;
		skb_frag_t frags[MAX_PDU_FRAGS];
		struct sk_buff *skb;
		unsigned int offset;
		unsigned int count;
		unsigned int sgoffset;
		};

		int cxgb3i_iscsi_init(void);
		void cxgb3i_iscsi_cleanup(void);

+3 −2

Original line number	Diff line number	Diff line
		@@ -364,7 +364,8 @@ cxgb3i_session_create(struct iscsi_endpoint *ep, u16 cmds_max, u16 qdepth,

		cls_session = iscsi_session_setup(&cxgb3i_iscsi_transport, shost,
		cmds_max,
		sizeof(struct iscsi_tcp_task),
		sizeof(struct iscsi_tcp_task) +
		sizeof(struct cxgb3i_task_data),
		initial_cmdsn, ISCSI_MAX_TARGET);
		if (!cls_session)
		return NULL;
		@@ -844,7 +845,7 @@ static struct scsi_host_template cxgb3i_host_template = {
		.proc_name = "cxgb3i",
		.queuecommand = iscsi_queuecommand,
		.change_queue_depth = iscsi_change_queue_depth,
		.can_queue = 128 * (ISCSI_DEF_XMIT_CMDS_MAX - 1),
		.can_queue = CXGB3I_SCSI_QDEPTH_DFLT - 1,
		.sg_tablesize = SG_ALL,
		.max_sectors = 0xFFFF,
		.cmd_per_lun = ISCSI_DEF_CMD_PER_LUN,