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scsi: elx: efct: Driver initialization routines
Add driver definitions for: - Emulex FC Target driver init, attach and hardware setup routines. Link: https://lore.kernel.org/r/20210601235512.20104-19-jsmart2021@gmail.com Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com> Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
James Smart
committed by
Martin K. Petersen
Martin K. Petersen
parent
75a10a7a91
commit
4df84e8466
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2021 Broadcom. All Rights Reserved. The term
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* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
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*/
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#if !defined(__EFCT_DRIVER_H__)
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#define __EFCT_DRIVER_H__
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/***************************************************************************
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* OS specific includes
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*/
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#include <stdarg.h>
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#include <linux/module.h>
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#include <linux/debugfs.h>
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#include <linux/firmware.h>
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#include "../include/efc_common.h"
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#include "../libefc/efclib.h"
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#include "efct_hw.h"
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#include "efct_io.h"
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#include "efct_xport.h"
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#define EFCT_DRIVER_NAME "efct"
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#define EFCT_DRIVER_VERSION "1.0.0.0"
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/* EFCT_DEFAULT_FILTER-
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* MRQ filter to segregate the IO flow.
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*/
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#define EFCT_DEFAULT_FILTER "0x01ff22ff,0,0,0"
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/* EFCT_OS_MAX_ISR_TIME_MSEC -
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* maximum time driver code should spend in an interrupt
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* or kernel thread context without yielding
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*/
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#define EFCT_OS_MAX_ISR_TIME_MSEC 1000
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#define EFCT_FC_MAX_SGL 64
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#define EFCT_FC_DIF_SEED 0
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/* Watermark */
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#define EFCT_WATERMARK_HIGH_PCT 90
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#define EFCT_WATERMARK_LOW_PCT 80
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#define EFCT_IO_WATERMARK_PER_INITIATOR 8
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#define EFCT_PCI_MAX_REGS 6
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#define MAX_PCI_INTERRUPTS 16
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struct efct_intr_context {
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struct efct *efct;
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u32 index;
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};
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struct efct {
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struct pci_dev *pci;
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void __iomem *reg[EFCT_PCI_MAX_REGS];
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u32 n_msix_vec;
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bool attached;
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bool soft_wwn_enable;
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u8 efct_req_fw_upgrade;
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struct efct_intr_context intr_context[MAX_PCI_INTERRUPTS];
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u32 numa_node;
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char name[EFC_NAME_LENGTH];
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u32 instance_index;
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struct list_head list_entry;
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struct efct_scsi_tgt tgt_efct;
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struct efct_xport *xport;
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struct efc *efcport;
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struct Scsi_Host *shost;
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int logmask;
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u32 max_isr_time_msec;
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const char *desc;
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const char *model;
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struct efct_hw hw;
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u32 rq_selection_policy;
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char *filter_def;
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int topology;
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/* Look up for target node */
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struct xarray lookup;
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/*
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* Target IO timer value:
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* Zero: target command timeout disabled.
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* Non-zero: Timeout value, in seconds, for target commands
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*/
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u32 target_io_timer_sec;
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int speed;
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struct dentry *sess_debugfs_dir;
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};
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#define FW_WRITE_BUFSIZE (64 * 1024)
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struct efct_fw_write_result {
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struct completion done;
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int status;
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u32 actual_xfer;
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u32 change_status;
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};
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extern struct list_head efct_devices;
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#endif /* __EFCT_DRIVER_H__ */
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@@ -583,4 +583,19 @@ struct efct_hw_grp_hdr {
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u8 revision[32];
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};
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static inline int
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efct_hw_get_link_speed(struct efct_hw *hw) {
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return hw->link.speed;
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}
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int
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efct_hw_setup(struct efct_hw *hw, void *os, struct pci_dev *pdev);
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int efct_hw_init(struct efct_hw *hw);
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int
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efct_hw_parse_filter(struct efct_hw *hw, void *value);
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uint64_t
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efct_get_wwnn(struct efct_hw *hw);
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uint64_t
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efct_get_wwpn(struct efct_hw *hw);
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#endif /* __EFCT_H__ */
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2021 Broadcom. All Rights Reserved. The term
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* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
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*/
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#if !defined(__EFCT_XPORT_H__)
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#define __EFCT_XPORT_H__
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enum efct_xport_ctrl {
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EFCT_XPORT_PORT_ONLINE = 1,
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EFCT_XPORT_PORT_OFFLINE,
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EFCT_XPORT_SHUTDOWN,
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EFCT_XPORT_POST_NODE_EVENT,
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EFCT_XPORT_WWNN_SET,
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EFCT_XPORT_WWPN_SET,
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};
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enum efct_xport_status {
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EFCT_XPORT_PORT_STATUS,
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EFCT_XPORT_CONFIG_PORT_STATUS,
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EFCT_XPORT_LINK_SPEED,
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EFCT_XPORT_IS_SUPPORTED_LINK_SPEED,
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EFCT_XPORT_LINK_STATISTICS,
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EFCT_XPORT_LINK_STAT_RESET,
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EFCT_XPORT_IS_QUIESCED
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};
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struct efct_xport_link_stats {
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bool rec;
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bool gec;
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bool w02of;
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bool w03of;
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bool w04of;
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bool w05of;
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bool w06of;
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bool w07of;
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bool w08of;
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bool w09of;
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bool w10of;
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bool w11of;
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bool w12of;
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bool w13of;
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bool w14of;
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bool w15of;
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bool w16of;
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bool w17of;
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bool w18of;
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bool w19of;
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bool w20of;
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bool w21of;
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bool clrc;
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bool clof1;
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u32 link_failure_error_count;
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u32 loss_of_sync_error_count;
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u32 loss_of_signal_error_count;
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u32 primitive_sequence_error_count;
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u32 invalid_transmission_word_error_count;
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u32 crc_error_count;
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u32 primitive_sequence_event_timeout_count;
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u32 elastic_buffer_overrun_error_count;
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u32 arbitration_fc_al_timeout_count;
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u32 advertised_receive_bufftor_to_buffer_credit;
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u32 current_receive_buffer_to_buffer_credit;
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u32 advertised_transmit_buffer_to_buffer_credit;
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u32 current_transmit_buffer_to_buffer_credit;
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u32 received_eofa_count;
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u32 received_eofdti_count;
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u32 received_eofni_count;
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u32 received_soff_count;
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u32 received_dropped_no_aer_count;
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u32 received_dropped_no_available_rpi_resources_count;
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u32 received_dropped_no_available_xri_resources_count;
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};
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struct efct_xport_host_stats {
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bool cc;
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u32 transmit_kbyte_count;
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u32 receive_kbyte_count;
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u32 transmit_frame_count;
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u32 receive_frame_count;
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u32 transmit_sequence_count;
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u32 receive_sequence_count;
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u32 total_exchanges_originator;
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u32 total_exchanges_responder;
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u32 receive_p_bsy_count;
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u32 receive_f_bsy_count;
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u32 dropped_frames_due_to_no_rq_buffer_count;
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u32 empty_rq_timeout_count;
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u32 dropped_frames_due_to_no_xri_count;
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u32 empty_xri_pool_count;
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};
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struct efct_xport_host_statistics {
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struct completion done;
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struct efct_xport_link_stats link_stats;
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struct efct_xport_host_stats host_stats;
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};
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union efct_xport_stats_u {
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u32 value;
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struct efct_xport_host_statistics stats;
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};
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struct efct_xport_fcp_stats {
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u64 input_bytes;
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u64 output_bytes;
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u64 input_requests;
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u64 output_requests;
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u64 control_requests;
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};
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struct efct_xport {
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struct efct *efct;
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/* wwpn requested by user for primary nport */
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u64 req_wwpn;
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/* wwnn requested by user for primary nport */
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u64 req_wwnn;
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/* Nodes */
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/* number of allocated nodes */
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u32 nodes_count;
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/* used to track how often IO pool is empty */
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atomic_t io_alloc_failed_count;
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/* array of pointers to nodes */
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struct efc_node **nodes;
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/* Io pool and counts */
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/* pointer to IO pool */
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struct efct_io_pool *io_pool;
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/* lock for io_pending_list */
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spinlock_t io_pending_lock;
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/* list of IOs waiting for HW resources
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* lock: xport->io_pending_lock
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* link: efct_io_s->io_pending_link
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*/
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struct list_head io_pending_list;
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/* count of totals IOS allocated */
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atomic_t io_total_alloc;
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/* count of totals IOS free'd */
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atomic_t io_total_free;
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/* count of totals IOS that were pended */
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atomic_t io_total_pending;
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/* count of active IOS */
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atomic_t io_active_count;
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/* count of pending IOS */
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atomic_t io_pending_count;
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/* non-zero if efct_scsi_check_pending is executing */
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atomic_t io_pending_recursing;
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/* Port */
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/* requested link state */
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u32 configured_link_state;
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/* Timer for Statistics */
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struct timer_list stats_timer;
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union efct_xport_stats_u fc_xport_stats;
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struct efct_xport_fcp_stats fcp_stats;
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};
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struct efct_rport_data {
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struct efc_node *node;
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};
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struct efct_xport *
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efct_xport_alloc(struct efct *efct);
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int
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efct_xport_attach(struct efct_xport *xport);
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int
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efct_xport_initialize(struct efct_xport *xport);
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void
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efct_xport_detach(struct efct_xport *xport);
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int
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efct_xport_control(struct efct_xport *xport, enum efct_xport_ctrl cmd, ...);
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int
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efct_xport_status(struct efct_xport *xport, enum efct_xport_status cmd,
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union efct_xport_stats_u *result);
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void
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efct_xport_free(struct efct_xport *xport);
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struct scsi_transport_template *efct_attach_fc_transport(void);
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struct scsi_transport_template *efct_attach_vport_fc_transport(void);
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void
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efct_release_fc_transport(struct scsi_transport_template *transport_template);
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#endif /* __EFCT_XPORT_H__ */
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