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[SCSI] scsi_transport_iscsi: Add host statistics support

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Add transport_iscsi hooks to get aggregate host statistics.
The statistics include MAC, TCP/IP & iSCSI statistics.

Signed-off-by: Lalit Chandivade <lalit.chandivade@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Lalit Chandivade
2013-11-22 05:28:18 -05:00
committed by James Bottomley
parent df86f77157
commit 6fa7c55438
3 changed files with 183 additions and 0 deletions
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112
include/scsi/iscsi_if.h
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@@ -70,6 +70,7 @@ enum iscsi_uevent_e {
ISCSI_UEVENT_LOGOUT_FLASHNODE = UEVENT_BASE + 29,
ISCSI_UEVENT_LOGOUT_FLASHNODE_SID = UEVENT_BASE + 30,
ISCSI_UEVENT_SET_CHAP = UEVENT_BASE + 31,
ISCSI_UEVENT_GET_HOST_STATS = UEVENT_BASE + 32,
/* up events */
ISCSI_KEVENT_RECV_PDU = KEVENT_BASE + 1,
@@ -242,6 +243,9 @@ struct iscsi_uevent {
uint32_t host_no;
uint32_t sid;
} logout_flashnode_sid;
struct msg_get_host_stats {
uint32_t host_no;
} get_host_stats;
} u;
union {
/* messages k -> u */
@@ -845,4 +849,112 @@ struct iscsi_chap_rec {
uint8_t password_length;
};
#define ISCSI_HOST_STATS_CUSTOM_MAX 32
#define ISCSI_HOST_STATS_CUSTOM_DESC_MAX 64
struct iscsi_host_stats_custom {
char desc[ISCSI_HOST_STATS_CUSTOM_DESC_MAX];
uint64_t value;
};
/* struct iscsi_offload_host_stats: Host statistics,
* Include statistics for MAC, IP, TCP & iSCSI.
*/
struct iscsi_offload_host_stats {
/* MAC */
uint64_t mactx_frames;
uint64_t mactx_bytes;
uint64_t mactx_multicast_frames;
uint64_t mactx_broadcast_frames;
uint64_t mactx_pause_frames;
uint64_t mactx_control_frames;
uint64_t mactx_deferral;
uint64_t mactx_excess_deferral;
uint64_t mactx_late_collision;
uint64_t mactx_abort;
uint64_t mactx_single_collision;
uint64_t mactx_multiple_collision;
uint64_t mactx_collision;
uint64_t mactx_frames_dropped;
uint64_t mactx_jumbo_frames;
uint64_t macrx_frames;
uint64_t macrx_bytes;
uint64_t macrx_unknown_control_frames;
uint64_t macrx_pause_frames;
uint64_t macrx_control_frames;
uint64_t macrx_dribble;
uint64_t macrx_frame_length_error;
uint64_t macrx_jabber;
uint64_t macrx_carrier_sense_error;
uint64_t macrx_frame_discarded;
uint64_t macrx_frames_dropped;
uint64_t mac_crc_error;
uint64_t mac_encoding_error;
uint64_t macrx_length_error_large;
uint64_t macrx_length_error_small;
uint64_t macrx_multicast_frames;
uint64_t macrx_broadcast_frames;
/* IP */
uint64_t iptx_packets;
uint64_t iptx_bytes;
uint64_t iptx_fragments;
uint64_t iprx_packets;
uint64_t iprx_bytes;
uint64_t iprx_fragments;
uint64_t ip_datagram_reassembly;
uint64_t ip_invalid_address_error;
uint64_t ip_error_packets;
uint64_t ip_fragrx_overlap;
uint64_t ip_fragrx_outoforder;
uint64_t ip_datagram_reassembly_timeout;
uint64_t ipv6tx_packets;
uint64_t ipv6tx_bytes;
uint64_t ipv6tx_fragments;
uint64_t ipv6rx_packets;
uint64_t ipv6rx_bytes;
uint64_t ipv6rx_fragments;
uint64_t ipv6_datagram_reassembly;
uint64_t ipv6_invalid_address_error;
uint64_t ipv6_error_packets;
uint64_t ipv6_fragrx_overlap;
uint64_t ipv6_fragrx_outoforder;
uint64_t ipv6_datagram_reassembly_timeout;
/* TCP */
uint64_t tcptx_segments;
uint64_t tcptx_bytes;
uint64_t tcprx_segments;
uint64_t tcprx_byte;
uint64_t tcp_duplicate_ack_retx;
uint64_t tcp_retx_timer_expired;
uint64_t tcprx_duplicate_ack;
uint64_t tcprx_pure_ackr;
uint64_t tcptx_delayed_ack;
uint64_t tcptx_pure_ack;
uint64_t tcprx_segment_error;
uint64_t tcprx_segment_outoforder;
uint64_t tcprx_window_probe;
uint64_t tcprx_window_update;
uint64_t tcptx_window_probe_persist;
/* ECC */
uint64_t ecc_error_correction;
/* iSCSI */
uint64_t iscsi_pdu_tx;
uint64_t iscsi_data_bytes_tx;
uint64_t iscsi_pdu_rx;
uint64_t iscsi_data_bytes_rx;
uint64_t iscsi_io_completed;
uint64_t iscsi_unexpected_io_rx;
uint64_t iscsi_format_error;
uint64_t iscsi_hdr_digest_error;
uint64_t iscsi_data_digest_error;
uint64_t iscsi_sequence_error;
/*
* iSCSI Custom Host Statistics support, i.e. Transport could
* extend existing host statistics with its own specific statistics
* up to ISCSI_HOST_STATS_CUSTOM_MAX
*/
uint32_t custom_length;
struct iscsi_host_stats_custom custom[0]
__aligned(sizeof(uint64_t));
};
#endif