mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
dff173de84
Statistics' state-machine in bnx2x driver must be synced with various driver flows, but its current locking scheme manages to be wasteful [using 2 locks + additional local variable] and prone to race-conditions at the same time, as the state-machine and 'action' are being accessed under different locks. In addition, current 'safe exec' isn't in fact safe, since the only guarantee it gives is that DMA transactions are over, but ramrods might still be running. This patch cleans up said logic, leaving us with a single lock for the entire flow and removing the possible races. Changes from v2: - Switched into mutex locking from semaphore locking. - Release locks on error flows. Changes from v1: Failure to acquire lock fails flow instead of printing a warning and allowing access to the critical section. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
556 lines
16 KiB
C
556 lines
16 KiB
C
/* bnx2x_stats.h: Broadcom Everest network driver.
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*
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* Copyright (c) 2007-2013 Broadcom Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation.
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*
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* Maintained by: Ariel Elior <ariel.elior@qlogic.com>
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* Written by: Eliezer Tamir
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* Based on code from Michael Chan's bnx2 driver
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* UDP CSUM errata workaround by Arik Gendelman
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* Slowpath and fastpath rework by Vladislav Zolotarov
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* Statistics and Link management by Yitchak Gertner
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*
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*/
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#ifndef BNX2X_STATS_H
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#define BNX2X_STATS_H
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#include <linux/types.h>
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struct nig_stats {
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u32 brb_discard;
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u32 brb_packet;
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u32 brb_truncate;
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u32 flow_ctrl_discard;
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u32 flow_ctrl_octets;
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u32 flow_ctrl_packet;
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u32 mng_discard;
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u32 mng_octet_inp;
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u32 mng_octet_out;
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u32 mng_packet_inp;
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u32 mng_packet_out;
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u32 pbf_octets;
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u32 pbf_packet;
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u32 safc_inp;
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u32 egress_mac_pkt0_lo;
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u32 egress_mac_pkt0_hi;
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u32 egress_mac_pkt1_lo;
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u32 egress_mac_pkt1_hi;
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};
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enum bnx2x_stats_event {
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STATS_EVENT_PMF = 0,
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STATS_EVENT_LINK_UP,
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STATS_EVENT_UPDATE,
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STATS_EVENT_STOP,
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STATS_EVENT_MAX
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};
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enum bnx2x_stats_state {
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STATS_STATE_DISABLED = 0,
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STATS_STATE_ENABLED,
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STATS_STATE_MAX
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};
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struct bnx2x_eth_stats {
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u32 total_bytes_received_hi;
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u32 total_bytes_received_lo;
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u32 total_bytes_transmitted_hi;
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u32 total_bytes_transmitted_lo;
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u32 total_unicast_packets_received_hi;
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u32 total_unicast_packets_received_lo;
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u32 total_multicast_packets_received_hi;
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u32 total_multicast_packets_received_lo;
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u32 total_broadcast_packets_received_hi;
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u32 total_broadcast_packets_received_lo;
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u32 total_unicast_packets_transmitted_hi;
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u32 total_unicast_packets_transmitted_lo;
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u32 total_multicast_packets_transmitted_hi;
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u32 total_multicast_packets_transmitted_lo;
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u32 total_broadcast_packets_transmitted_hi;
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u32 total_broadcast_packets_transmitted_lo;
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u32 valid_bytes_received_hi;
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u32 valid_bytes_received_lo;
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u32 error_bytes_received_hi;
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u32 error_bytes_received_lo;
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u32 etherstatsoverrsizepkts_hi;
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u32 etherstatsoverrsizepkts_lo;
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u32 no_buff_discard_hi;
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u32 no_buff_discard_lo;
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u32 rx_stat_ifhcinbadoctets_hi;
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u32 rx_stat_ifhcinbadoctets_lo;
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u32 tx_stat_ifhcoutbadoctets_hi;
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u32 tx_stat_ifhcoutbadoctets_lo;
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u32 rx_stat_dot3statsfcserrors_hi;
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u32 rx_stat_dot3statsfcserrors_lo;
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u32 rx_stat_dot3statsalignmenterrors_hi;
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u32 rx_stat_dot3statsalignmenterrors_lo;
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u32 rx_stat_dot3statscarriersenseerrors_hi;
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u32 rx_stat_dot3statscarriersenseerrors_lo;
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u32 rx_stat_falsecarriererrors_hi;
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u32 rx_stat_falsecarriererrors_lo;
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u32 rx_stat_etherstatsundersizepkts_hi;
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u32 rx_stat_etherstatsundersizepkts_lo;
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u32 rx_stat_dot3statsframestoolong_hi;
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u32 rx_stat_dot3statsframestoolong_lo;
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u32 rx_stat_etherstatsfragments_hi;
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u32 rx_stat_etherstatsfragments_lo;
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u32 rx_stat_etherstatsjabbers_hi;
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u32 rx_stat_etherstatsjabbers_lo;
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u32 rx_stat_maccontrolframesreceived_hi;
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u32 rx_stat_maccontrolframesreceived_lo;
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u32 rx_stat_bmac_xpf_hi;
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u32 rx_stat_bmac_xpf_lo;
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u32 rx_stat_bmac_xcf_hi;
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u32 rx_stat_bmac_xcf_lo;
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u32 rx_stat_xoffstateentered_hi;
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u32 rx_stat_xoffstateentered_lo;
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u32 rx_stat_xonpauseframesreceived_hi;
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u32 rx_stat_xonpauseframesreceived_lo;
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u32 rx_stat_xoffpauseframesreceived_hi;
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u32 rx_stat_xoffpauseframesreceived_lo;
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u32 tx_stat_outxonsent_hi;
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u32 tx_stat_outxonsent_lo;
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u32 tx_stat_outxoffsent_hi;
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u32 tx_stat_outxoffsent_lo;
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u32 tx_stat_flowcontroldone_hi;
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u32 tx_stat_flowcontroldone_lo;
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u32 tx_stat_etherstatscollisions_hi;
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u32 tx_stat_etherstatscollisions_lo;
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u32 tx_stat_dot3statssinglecollisionframes_hi;
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u32 tx_stat_dot3statssinglecollisionframes_lo;
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u32 tx_stat_dot3statsmultiplecollisionframes_hi;
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u32 tx_stat_dot3statsmultiplecollisionframes_lo;
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u32 tx_stat_dot3statsdeferredtransmissions_hi;
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u32 tx_stat_dot3statsdeferredtransmissions_lo;
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u32 tx_stat_dot3statsexcessivecollisions_hi;
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u32 tx_stat_dot3statsexcessivecollisions_lo;
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u32 tx_stat_dot3statslatecollisions_hi;
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u32 tx_stat_dot3statslatecollisions_lo;
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u32 tx_stat_etherstatspkts64octets_hi;
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u32 tx_stat_etherstatspkts64octets_lo;
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u32 tx_stat_etherstatspkts65octetsto127octets_hi;
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u32 tx_stat_etherstatspkts65octetsto127octets_lo;
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u32 tx_stat_etherstatspkts128octetsto255octets_hi;
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u32 tx_stat_etherstatspkts128octetsto255octets_lo;
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u32 tx_stat_etherstatspkts256octetsto511octets_hi;
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u32 tx_stat_etherstatspkts256octetsto511octets_lo;
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u32 tx_stat_etherstatspkts512octetsto1023octets_hi;
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u32 tx_stat_etherstatspkts512octetsto1023octets_lo;
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u32 tx_stat_etherstatspkts1024octetsto1522octets_hi;
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u32 tx_stat_etherstatspkts1024octetsto1522octets_lo;
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u32 tx_stat_etherstatspktsover1522octets_hi;
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u32 tx_stat_etherstatspktsover1522octets_lo;
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u32 tx_stat_bmac_2047_hi;
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u32 tx_stat_bmac_2047_lo;
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u32 tx_stat_bmac_4095_hi;
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u32 tx_stat_bmac_4095_lo;
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u32 tx_stat_bmac_9216_hi;
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u32 tx_stat_bmac_9216_lo;
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u32 tx_stat_bmac_16383_hi;
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u32 tx_stat_bmac_16383_lo;
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u32 tx_stat_dot3statsinternalmactransmiterrors_hi;
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u32 tx_stat_dot3statsinternalmactransmiterrors_lo;
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u32 tx_stat_bmac_ufl_hi;
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u32 tx_stat_bmac_ufl_lo;
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u32 pause_frames_received_hi;
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u32 pause_frames_received_lo;
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u32 pause_frames_sent_hi;
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u32 pause_frames_sent_lo;
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u32 etherstatspkts1024octetsto1522octets_hi;
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u32 etherstatspkts1024octetsto1522octets_lo;
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u32 etherstatspktsover1522octets_hi;
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u32 etherstatspktsover1522octets_lo;
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u32 brb_drop_hi;
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u32 brb_drop_lo;
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u32 brb_truncate_hi;
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u32 brb_truncate_lo;
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u32 mac_filter_discard;
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u32 mf_tag_discard;
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u32 brb_truncate_discard;
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u32 mac_discard;
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u32 driver_xoff;
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u32 rx_err_discard_pkt;
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u32 rx_skb_alloc_failed;
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u32 hw_csum_err;
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u32 nig_timer_max;
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/* TPA */
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u32 total_tpa_aggregations_hi;
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u32 total_tpa_aggregations_lo;
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u32 total_tpa_aggregated_frames_hi;
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u32 total_tpa_aggregated_frames_lo;
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u32 total_tpa_bytes_hi;
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u32 total_tpa_bytes_lo;
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/* PFC */
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u32 pfc_frames_received_hi;
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u32 pfc_frames_received_lo;
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u32 pfc_frames_sent_hi;
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u32 pfc_frames_sent_lo;
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/* Recovery */
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u32 recoverable_error;
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u32 unrecoverable_error;
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u32 driver_filtered_tx_pkt;
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/* src: Clear-on-Read register; Will not survive PMF Migration */
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u32 eee_tx_lpi;
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};
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struct bnx2x_eth_q_stats {
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u32 total_unicast_bytes_received_hi;
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u32 total_unicast_bytes_received_lo;
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u32 total_broadcast_bytes_received_hi;
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u32 total_broadcast_bytes_received_lo;
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u32 total_multicast_bytes_received_hi;
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u32 total_multicast_bytes_received_lo;
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u32 total_bytes_received_hi;
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u32 total_bytes_received_lo;
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u32 total_unicast_bytes_transmitted_hi;
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u32 total_unicast_bytes_transmitted_lo;
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u32 total_broadcast_bytes_transmitted_hi;
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u32 total_broadcast_bytes_transmitted_lo;
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u32 total_multicast_bytes_transmitted_hi;
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u32 total_multicast_bytes_transmitted_lo;
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u32 total_bytes_transmitted_hi;
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u32 total_bytes_transmitted_lo;
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u32 total_unicast_packets_received_hi;
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u32 total_unicast_packets_received_lo;
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u32 total_multicast_packets_received_hi;
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u32 total_multicast_packets_received_lo;
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u32 total_broadcast_packets_received_hi;
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u32 total_broadcast_packets_received_lo;
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u32 total_unicast_packets_transmitted_hi;
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u32 total_unicast_packets_transmitted_lo;
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u32 total_multicast_packets_transmitted_hi;
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u32 total_multicast_packets_transmitted_lo;
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u32 total_broadcast_packets_transmitted_hi;
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u32 total_broadcast_packets_transmitted_lo;
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u32 valid_bytes_received_hi;
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u32 valid_bytes_received_lo;
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u32 etherstatsoverrsizepkts_hi;
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u32 etherstatsoverrsizepkts_lo;
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u32 no_buff_discard_hi;
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u32 no_buff_discard_lo;
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u32 driver_xoff;
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u32 rx_err_discard_pkt;
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u32 rx_skb_alloc_failed;
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u32 hw_csum_err;
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u32 total_packets_received_checksum_discarded_hi;
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u32 total_packets_received_checksum_discarded_lo;
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u32 total_packets_received_ttl0_discarded_hi;
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u32 total_packets_received_ttl0_discarded_lo;
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u32 total_transmitted_dropped_packets_error_hi;
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u32 total_transmitted_dropped_packets_error_lo;
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/* TPA */
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u32 total_tpa_aggregations_hi;
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u32 total_tpa_aggregations_lo;
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u32 total_tpa_aggregated_frames_hi;
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u32 total_tpa_aggregated_frames_lo;
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u32 total_tpa_bytes_hi;
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u32 total_tpa_bytes_lo;
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u32 driver_filtered_tx_pkt;
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};
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struct bnx2x_eth_stats_old {
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u32 rx_stat_dot3statsframestoolong_hi;
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u32 rx_stat_dot3statsframestoolong_lo;
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};
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struct bnx2x_eth_q_stats_old {
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/* Fields to perserve over fw reset*/
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u32 total_unicast_bytes_received_hi;
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u32 total_unicast_bytes_received_lo;
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u32 total_broadcast_bytes_received_hi;
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u32 total_broadcast_bytes_received_lo;
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u32 total_multicast_bytes_received_hi;
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u32 total_multicast_bytes_received_lo;
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u32 total_unicast_bytes_transmitted_hi;
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u32 total_unicast_bytes_transmitted_lo;
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u32 total_broadcast_bytes_transmitted_hi;
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u32 total_broadcast_bytes_transmitted_lo;
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u32 total_multicast_bytes_transmitted_hi;
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u32 total_multicast_bytes_transmitted_lo;
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u32 total_tpa_bytes_hi;
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u32 total_tpa_bytes_lo;
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/* Fields to perserve last of */
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u32 total_bytes_received_hi;
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u32 total_bytes_received_lo;
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u32 total_bytes_transmitted_hi;
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u32 total_bytes_transmitted_lo;
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u32 total_unicast_packets_received_hi;
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u32 total_unicast_packets_received_lo;
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u32 total_multicast_packets_received_hi;
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u32 total_multicast_packets_received_lo;
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u32 total_broadcast_packets_received_hi;
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u32 total_broadcast_packets_received_lo;
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u32 total_unicast_packets_transmitted_hi;
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u32 total_unicast_packets_transmitted_lo;
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u32 total_multicast_packets_transmitted_hi;
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u32 total_multicast_packets_transmitted_lo;
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u32 total_broadcast_packets_transmitted_hi;
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u32 total_broadcast_packets_transmitted_lo;
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u32 valid_bytes_received_hi;
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u32 valid_bytes_received_lo;
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u32 total_tpa_bytes_hi_old;
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u32 total_tpa_bytes_lo_old;
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u32 driver_xoff_old;
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u32 rx_err_discard_pkt_old;
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u32 rx_skb_alloc_failed_old;
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u32 hw_csum_err_old;
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u32 driver_filtered_tx_pkt_old;
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};
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struct bnx2x_net_stats_old {
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u32 rx_dropped;
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};
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struct bnx2x_fw_port_stats_old {
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u32 mac_filter_discard;
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u32 mf_tag_discard;
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u32 brb_truncate_discard;
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u32 mac_discard;
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};
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/****************************************************************************
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* Macros
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****************************************************************************/
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/* sum[hi:lo] += add[hi:lo] */
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#define ADD_64(s_hi, a_hi, s_lo, a_lo) \
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do { \
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s_lo += a_lo; \
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s_hi += a_hi + ((s_lo < a_lo) ? 1 : 0); \
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} while (0)
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#define LE32_0 ((__force __le32) 0)
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#define LE16_0 ((__force __le16) 0)
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/* The _force is for cases where high value is 0 */
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#define ADD_64_LE(s_hi, a_hi_le, s_lo, a_lo_le) \
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ADD_64(s_hi, le32_to_cpu(a_hi_le), \
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s_lo, le32_to_cpu(a_lo_le))
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#define ADD_64_LE16(s_hi, a_hi_le, s_lo, a_lo_le) \
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ADD_64(s_hi, le16_to_cpu(a_hi_le), \
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s_lo, le16_to_cpu(a_lo_le))
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/* difference = minuend - subtrahend */
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#define DIFF_64(d_hi, m_hi, s_hi, d_lo, m_lo, s_lo) \
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do { \
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if (m_lo < s_lo) { \
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/* underflow */ \
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d_hi = m_hi - s_hi; \
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if (d_hi > 0) { \
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/* we can 'loan' 1 */ \
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d_hi--; \
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d_lo = m_lo + (UINT_MAX - s_lo) + 1; \
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} else { \
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/* m_hi <= s_hi */ \
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d_hi = 0; \
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d_lo = 0; \
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} \
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} else { \
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/* m_lo >= s_lo */ \
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if (m_hi < s_hi) { \
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d_hi = 0; \
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d_lo = 0; \
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} else { \
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/* m_hi >= s_hi */ \
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d_hi = m_hi - s_hi; \
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d_lo = m_lo - s_lo; \
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} \
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} \
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} while (0)
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#define UPDATE_STAT64(s, t) \
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do { \
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DIFF_64(diff.hi, new->s##_hi, pstats->mac_stx[0].t##_hi, \
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diff.lo, new->s##_lo, pstats->mac_stx[0].t##_lo); \
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pstats->mac_stx[0].t##_hi = new->s##_hi; \
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pstats->mac_stx[0].t##_lo = new->s##_lo; \
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ADD_64(pstats->mac_stx[1].t##_hi, diff.hi, \
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pstats->mac_stx[1].t##_lo, diff.lo); \
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} while (0)
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#define UPDATE_STAT64_NIG(s, t) \
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do { \
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DIFF_64(diff.hi, new->s##_hi, old->s##_hi, \
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diff.lo, new->s##_lo, old->s##_lo); \
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ADD_64(estats->t##_hi, diff.hi, \
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estats->t##_lo, diff.lo); \
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} while (0)
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/* sum[hi:lo] += add */
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#define ADD_EXTEND_64(s_hi, s_lo, a) \
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do { \
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s_lo += a; \
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s_hi += (s_lo < a) ? 1 : 0; \
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} while (0)
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#define ADD_STAT64(diff, t) \
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do { \
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ADD_64(pstats->mac_stx[1].t##_hi, new->diff##_hi, \
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pstats->mac_stx[1].t##_lo, new->diff##_lo); \
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} while (0)
|
|
|
|
#define UPDATE_EXTEND_STAT(s) \
|
|
do { \
|
|
ADD_EXTEND_64(pstats->mac_stx[1].s##_hi, \
|
|
pstats->mac_stx[1].s##_lo, \
|
|
new->s); \
|
|
} while (0)
|
|
|
|
#define UPDATE_EXTEND_TSTAT_X(s, t, size) \
|
|
do { \
|
|
diff = le##size##_to_cpu(tclient->s) - \
|
|
le##size##_to_cpu(old_tclient->s); \
|
|
old_tclient->s = tclient->s; \
|
|
ADD_EXTEND_64(qstats->t##_hi, qstats->t##_lo, diff); \
|
|
} while (0)
|
|
|
|
#define UPDATE_EXTEND_TSTAT(s, t) UPDATE_EXTEND_TSTAT_X(s, t, 32)
|
|
|
|
#define UPDATE_EXTEND_E_TSTAT(s, t, size) \
|
|
do { \
|
|
UPDATE_EXTEND_TSTAT_X(s, t, size); \
|
|
ADD_EXTEND_64(estats->t##_hi, estats->t##_lo, diff); \
|
|
} while (0)
|
|
|
|
#define UPDATE_EXTEND_USTAT(s, t) \
|
|
do { \
|
|
diff = le32_to_cpu(uclient->s) - le32_to_cpu(old_uclient->s); \
|
|
old_uclient->s = uclient->s; \
|
|
ADD_EXTEND_64(qstats->t##_hi, qstats->t##_lo, diff); \
|
|
} while (0)
|
|
|
|
#define UPDATE_EXTEND_E_USTAT(s, t) \
|
|
do { \
|
|
UPDATE_EXTEND_USTAT(s, t); \
|
|
ADD_EXTEND_64(estats->t##_hi, estats->t##_lo, diff); \
|
|
} while (0)
|
|
|
|
#define UPDATE_EXTEND_XSTAT(s, t) \
|
|
do { \
|
|
diff = le32_to_cpu(xclient->s) - le32_to_cpu(old_xclient->s); \
|
|
old_xclient->s = xclient->s; \
|
|
ADD_EXTEND_64(qstats->t##_hi, qstats->t##_lo, diff); \
|
|
} while (0)
|
|
|
|
#define UPDATE_QSTAT(s, t) \
|
|
do { \
|
|
qstats->t##_lo = qstats_old->t##_lo + le32_to_cpu(s.lo); \
|
|
qstats->t##_hi = qstats_old->t##_hi + le32_to_cpu(s.hi) \
|
|
+ ((qstats->t##_lo < qstats_old->t##_lo) ? 1 : 0); \
|
|
} while (0)
|
|
|
|
#define UPDATE_QSTAT_OLD(f) \
|
|
do { \
|
|
qstats_old->f = qstats->f; \
|
|
} while (0)
|
|
|
|
#define UPDATE_ESTAT_QSTAT_64(s) \
|
|
do { \
|
|
ADD_64(estats->s##_hi, qstats->s##_hi, \
|
|
estats->s##_lo, qstats->s##_lo); \
|
|
SUB_64(estats->s##_hi, qstats_old->s##_hi_old, \
|
|
estats->s##_lo, qstats_old->s##_lo_old); \
|
|
qstats_old->s##_hi_old = qstats->s##_hi; \
|
|
qstats_old->s##_lo_old = qstats->s##_lo; \
|
|
} while (0)
|
|
|
|
#define UPDATE_ESTAT_QSTAT(s) \
|
|
do { \
|
|
estats->s += qstats->s; \
|
|
estats->s -= qstats_old->s##_old; \
|
|
qstats_old->s##_old = qstats->s; \
|
|
} while (0)
|
|
|
|
#define UPDATE_FSTAT_QSTAT(s) \
|
|
do { \
|
|
ADD_64(fstats->s##_hi, qstats->s##_hi, \
|
|
fstats->s##_lo, qstats->s##_lo); \
|
|
SUB_64(fstats->s##_hi, qstats_old->s##_hi, \
|
|
fstats->s##_lo, qstats_old->s##_lo); \
|
|
estats->s##_hi = fstats->s##_hi; \
|
|
estats->s##_lo = fstats->s##_lo; \
|
|
qstats_old->s##_hi = qstats->s##_hi; \
|
|
qstats_old->s##_lo = qstats->s##_lo; \
|
|
} while (0)
|
|
|
|
#define UPDATE_FW_STAT(s) \
|
|
do { \
|
|
estats->s = le32_to_cpu(tport->s) + fwstats->s; \
|
|
} while (0)
|
|
|
|
#define UPDATE_FW_STAT_OLD(f) \
|
|
do { \
|
|
fwstats->f = estats->f; \
|
|
} while (0)
|
|
|
|
#define UPDATE_ESTAT(s, t) \
|
|
do { \
|
|
SUB_64(estats->s##_hi, estats_old->t##_hi, \
|
|
estats->s##_lo, estats_old->t##_lo); \
|
|
ADD_64(estats->s##_hi, estats->t##_hi, \
|
|
estats->s##_lo, estats->t##_lo); \
|
|
estats_old->t##_hi = estats->t##_hi; \
|
|
estats_old->t##_lo = estats->t##_lo; \
|
|
} while (0)
|
|
|
|
/* minuend -= subtrahend */
|
|
#define SUB_64(m_hi, s_hi, m_lo, s_lo) \
|
|
do { \
|
|
DIFF_64(m_hi, m_hi, s_hi, m_lo, m_lo, s_lo); \
|
|
} while (0)
|
|
|
|
/* minuend[hi:lo] -= subtrahend */
|
|
#define SUB_EXTEND_64(m_hi, m_lo, s) \
|
|
do { \
|
|
SUB_64(m_hi, 0, m_lo, s); \
|
|
} while (0)
|
|
|
|
#define SUB_EXTEND_USTAT(s, t) \
|
|
do { \
|
|
diff = le32_to_cpu(uclient->s) - le32_to_cpu(old_uclient->s); \
|
|
SUB_EXTEND_64(qstats->t##_hi, qstats->t##_lo, diff); \
|
|
} while (0)
|
|
|
|
/* forward */
|
|
struct bnx2x;
|
|
|
|
void bnx2x_memset_stats(struct bnx2x *bp);
|
|
void bnx2x_stats_init(struct bnx2x *bp);
|
|
void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event);
|
|
int bnx2x_stats_safe_exec(struct bnx2x *bp,
|
|
void (func_to_exec)(void *cookie),
|
|
void *cookie);
|
|
|
|
/**
|
|
* bnx2x_save_statistics - save statistics when unloading.
|
|
*
|
|
* @bp: driver handle
|
|
*/
|
|
void bnx2x_save_statistics(struct bnx2x *bp);
|
|
|
|
void bnx2x_afex_collect_stats(struct bnx2x *bp, void *void_afex_stats,
|
|
u32 stats_type);
|
|
#endif /* BNX2X_STATS_H */
|