| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Abhijeet Joglekar | 941 | 63.75% | 1 | 6.25% |
| Hiral Patel | 399 | 27.03% | 7 | 43.75% |
| Joe Eykholt | 88 | 5.96% | 1 | 6.25% |
| Narsimhulu Musini | 32 | 2.17% | 1 | 6.25% |
| Hiral Shah | 6 | 0.41% | 1 | 6.25% |
| Satish Kharat | 4 | 0.27% | 2 | 12.50% |
| Andrew Morton | 3 | 0.20% | 1 | 6.25% |
| Arnd Bergmann | 2 | 0.14% | 1 | 6.25% |
| Jeff Garzik | 1 | 0.07% | 1 | 6.25% |
| Total | 1476 | 16 |
/* * Copyright 2008 Cisco Systems, Inc. All rights reserved. * Copyright 2007 Nuova Systems, Inc. All rights reserved. * * This program is free software; you may redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef _FNIC_H_ #define _FNIC_H_ #include <linux/interrupt.h> #include <linux/netdevice.h> #include <linux/workqueue.h> #include <linux/bitops.h> #include <scsi/libfc.h> #include <scsi/libfcoe.h> #include "fnic_io.h" #include "fnic_res.h" #include "fnic_trace.h" #include "fnic_stats.h" #include "vnic_dev.h" #include "vnic_wq.h" #include "vnic_rq.h" #include "vnic_cq.h" #include "vnic_wq_copy.h" #include "vnic_intr.h" #include "vnic_stats.h" #include "vnic_scsi.h" #define DRV_NAME "fnic" #define DRV_DESCRIPTION "Cisco FCoE HBA Driver" #define DRV_VERSION "1.6.0.34" #define PFX DRV_NAME ": " #define DFX DRV_NAME "%d: " #define DESC_CLEAN_LOW_WATERMARK 8 #define FNIC_UCSM_DFLT_THROTTLE_CNT_BLD 16 /* UCSM default throttle count */ #define FNIC_MIN_IO_REQ 256 /* Min IO throttle count */ #define FNIC_MAX_IO_REQ 1024 /* scsi_cmnd tag map entries */ #define FNIC_DFLT_IO_REQ 256 /* Default scsi_cmnd tag map entries */ #define FNIC_IO_LOCKS 64 /* IO locks: power of 2 */ #define FNIC_DFLT_QUEUE_DEPTH 32 #define FNIC_STATS_RATE_LIMIT 4 /* limit rate at which stats are pulled up */ /* * Tag bits used for special requests. */ #define FNIC_TAG_ABORT BIT(30) /* tag bit indicating abort */ #define FNIC_TAG_DEV_RST BIT(29) /* indicates device reset */ #define FNIC_TAG_MASK (BIT(24) - 1) /* mask for lookup */ #define FNIC_NO_TAG -1 /* * Command flags to identify the type of command and for other future * use. */ #define FNIC_NO_FLAGS 0 #define FNIC_IO_INITIALIZED BIT(0) #define FNIC_IO_ISSUED BIT(1) #define FNIC_IO_DONE BIT(2) #define FNIC_IO_REQ_NULL BIT(3) #define FNIC_IO_ABTS_PENDING BIT(4) #define FNIC_IO_ABORTED BIT(5) #define FNIC_IO_ABTS_ISSUED BIT(6) #define FNIC_IO_TERM_ISSUED BIT(7) #define FNIC_IO_INTERNAL_TERM_ISSUED BIT(8) #define FNIC_IO_ABT_TERM_DONE BIT(9) #define FNIC_IO_ABT_TERM_REQ_NULL BIT(10) #define FNIC_IO_ABT_TERM_TIMED_OUT BIT(11) #define FNIC_DEVICE_RESET BIT(12) /* Device reset request */ #define FNIC_DEV_RST_ISSUED BIT(13) #define FNIC_DEV_RST_TIMED_OUT BIT(14) #define FNIC_DEV_RST_ABTS_ISSUED BIT(15) #define FNIC_DEV_RST_TERM_ISSUED BIT(16) #define FNIC_DEV_RST_DONE BIT(17) #define FNIC_DEV_RST_REQ_NULL BIT(18) #define FNIC_DEV_RST_ABTS_DONE BIT(19) #define FNIC_DEV_RST_TERM_DONE BIT(20) #define FNIC_DEV_RST_ABTS_PENDING BIT(21) /* * Usage of the scsi_cmnd scratchpad. * These fields are locked by the hashed io_req_lock. */ #define CMD_SP(Cmnd) ((Cmnd)->SCp.ptr) #define CMD_STATE(Cmnd) ((Cmnd)->SCp.phase) #define CMD_ABTS_STATUS(Cmnd) ((Cmnd)->SCp.Message) #define CMD_LR_STATUS(Cmnd) ((Cmnd)->SCp.have_data_in) #define CMD_TAG(Cmnd) ((Cmnd)->SCp.sent_command) #define CMD_FLAGS(Cmnd) ((Cmnd)->SCp.Status) #define FCPIO_INVALID_CODE 0x100 /* hdr_status value unused by firmware */ #define FNIC_LUN_RESET_TIMEOUT 10000 /* mSec */ #define FNIC_HOST_RESET_TIMEOUT 10000 /* mSec */ #define FNIC_RMDEVICE_TIMEOUT 1000 /* mSec */ #define FNIC_HOST_RESET_SETTLE_TIME 30 /* Sec */ #define FNIC_ABT_TERM_DELAY_TIMEOUT 500 /* mSec */ #define FNIC_MAX_FCP_TARGET 256 /** * state_flags to identify host state along along with fnic's state **/ #define __FNIC_FLAGS_FWRESET BIT(0) /* fwreset in progress */ #define __FNIC_FLAGS_BLOCK_IO BIT(1) /* IOs are blocked */ #define FNIC_FLAGS_NONE (0) #define FNIC_FLAGS_FWRESET (__FNIC_FLAGS_FWRESET | \ __FNIC_FLAGS_BLOCK_IO) #define FNIC_FLAGS_IO_BLOCKED (__FNIC_FLAGS_BLOCK_IO) #define fnic_set_state_flags(fnicp, st_flags) \ __fnic_set_state_flags(fnicp, st_flags, 0) #define fnic_clear_state_flags(fnicp, st_flags) \ __fnic_set_state_flags(fnicp, st_flags, 1) extern unsigned int fnic_log_level; #define FNIC_MAIN_LOGGING 0x01 #define FNIC_FCS_LOGGING 0x02 #define FNIC_SCSI_LOGGING 0x04 #define FNIC_ISR_LOGGING 0x08 #define FNIC_CHECK_LOGGING(LEVEL, CMD) \ do { \ if (unlikely(fnic_log_level & LEVEL)) \ do { \ CMD; \ } while (0); \ } while (0) #define FNIC_MAIN_DBG(kern_level, host, fmt, args...) \ FNIC_CHECK_LOGGING(FNIC_MAIN_LOGGING, \ shost_printk(kern_level, host, fmt, ##args);) #define FNIC_FCS_DBG(kern_level, host, fmt, args...) \ FNIC_CHECK_LOGGING(FNIC_FCS_LOGGING, \ shost_printk(kern_level, host, fmt, ##args);) #define FNIC_SCSI_DBG(kern_level, host, fmt, args...) \ FNIC_CHECK_LOGGING(FNIC_SCSI_LOGGING, \ shost_printk(kern_level, host, fmt, ##args);) #define FNIC_ISR_DBG(kern_level, host, fmt, args...) \ FNIC_CHECK_LOGGING(FNIC_ISR_LOGGING, \ shost_printk(kern_level, host, fmt, ##args);) #define FNIC_MAIN_NOTE(kern_level, host, fmt, args...) \ shost_printk(kern_level, host, fmt, ##args) extern const char *fnic_state_str[]; enum fnic_intx_intr_index { FNIC_INTX_WQ_RQ_COPYWQ, FNIC_INTX_ERR, FNIC_INTX_NOTIFY, FNIC_INTX_INTR_MAX, }; enum fnic_msix_intr_index { FNIC_MSIX_RQ, FNIC_MSIX_WQ, FNIC_MSIX_WQ_COPY, FNIC_MSIX_ERR_NOTIFY, FNIC_MSIX_INTR_MAX, }; struct fnic_msix_entry { int requested; char devname[IFNAMSIZ + 11]; irqreturn_t (*isr)(int, void *); void *devid; }; enum fnic_state { FNIC_IN_FC_MODE = 0, FNIC_IN_FC_TRANS_ETH_MODE, FNIC_IN_ETH_MODE, FNIC_IN_ETH_TRANS_FC_MODE, }; #define FNIC_WQ_COPY_MAX 1 #define FNIC_WQ_MAX 1 #define FNIC_RQ_MAX 1 #define FNIC_CQ_MAX (FNIC_WQ_COPY_MAX + FNIC_WQ_MAX + FNIC_RQ_MAX) struct mempool; enum fnic_evt { FNIC_EVT_START_VLAN_DISC = 1, FNIC_EVT_START_FCF_DISC = 2, FNIC_EVT_MAX, }; struct fnic_event { struct list_head list; struct fnic *fnic; enum fnic_evt event; }; /* Per-instance private data structure */ struct fnic { struct fc_lport *lport; struct fcoe_ctlr ctlr; /* FIP FCoE controller structure */ struct vnic_dev_bar bar0; struct fnic_msix_entry msix[FNIC_MSIX_INTR_MAX]; struct vnic_stats *stats; unsigned long stats_time; /* time of stats update */ unsigned long stats_reset_time; /* time of stats reset */ struct vnic_nic_cfg *nic_cfg; char name[IFNAMSIZ]; struct timer_list notify_timer; /* used for MSI interrupts */ unsigned int fnic_max_tag_id; unsigned int err_intr_offset; unsigned int link_intr_offset; unsigned int wq_count; unsigned int cq_count; struct dentry *fnic_stats_debugfs_host; struct dentry *fnic_stats_debugfs_file; struct dentry *fnic_reset_debugfs_file; unsigned int reset_stats; atomic64_t io_cmpl_skip; struct fnic_stats fnic_stats; u32 vlan_hw_insert:1; /* let hw insert the tag */ u32 in_remove:1; /* fnic device in removal */ u32 stop_rx_link_events:1; /* stop proc. rx frames, link events */ struct completion *remove_wait; /* device remove thread blocks */ atomic_t in_flight; /* io counter */ bool internal_reset_inprogress; u32 _reserved; /* fill hole */ unsigned long state_flags; /* protected by host lock */ enum fnic_state state; spinlock_t fnic_lock; u16 vlan_id; /* VLAN tag including priority */ u8 data_src_addr[ETH_ALEN]; u64 fcp_input_bytes; /* internal statistic */ u64 fcp_output_bytes; /* internal statistic */ u32 link_down_cnt; int link_status; struct list_head list; struct pci_dev *pdev; struct vnic_fc_config config; struct vnic_dev *vdev; unsigned int raw_wq_count; unsigned int wq_copy_count; unsigned int rq_count; int fw_ack_index[FNIC_WQ_COPY_MAX]; unsigned short fw_ack_recd[FNIC_WQ_COPY_MAX]; unsigned short wq_copy_desc_low[FNIC_WQ_COPY_MAX]; unsigned int intr_count; u32 __iomem *legacy_pba; struct fnic_host_tag *tags; mempool_t *io_req_pool; mempool_t *io_sgl_pool[FNIC_SGL_NUM_CACHES]; spinlock_t io_req_lock[FNIC_IO_LOCKS]; /* locks for scsi cmnds */ struct work_struct link_work; struct work_struct frame_work; struct sk_buff_head frame_queue; struct sk_buff_head tx_queue; /*** FIP related data members -- start ***/ void (*set_vlan)(struct fnic *, u16 vlan); struct work_struct fip_frame_work; struct sk_buff_head fip_frame_queue; struct timer_list fip_timer; struct list_head vlans; spinlock_t vlans_lock; struct work_struct event_work; struct list_head evlist; /*** FIP related data members -- end ***/ /* copy work queue cache line section */ ____cacheline_aligned struct vnic_wq_copy wq_copy[FNIC_WQ_COPY_MAX]; /* completion queue cache line section */ ____cacheline_aligned struct vnic_cq cq[FNIC_CQ_MAX]; spinlock_t wq_copy_lock[FNIC_WQ_COPY_MAX]; /* work queue cache line section */ ____cacheline_aligned struct vnic_wq wq[FNIC_WQ_MAX]; spinlock_t wq_lock[FNIC_WQ_MAX]; /* receive queue cache line section */ ____cacheline_aligned struct vnic_rq rq[FNIC_RQ_MAX]; /* interrupt resource cache line section */ ____cacheline_aligned struct vnic_intr intr[FNIC_MSIX_INTR_MAX]; }; static inline struct fnic *fnic_from_ctlr(struct fcoe_ctlr *fip) { return container_of(fip, struct fnic, ctlr); } extern struct workqueue_struct *fnic_event_queue; extern struct workqueue_struct *fnic_fip_queue; extern struct device_attribute *fnic_attrs[]; void fnic_clear_intr_mode(struct fnic *fnic); int fnic_set_intr_mode(struct fnic *fnic); void fnic_free_intr(struct fnic *fnic); int fnic_request_intr(struct fnic *fnic); int fnic_send(struct fc_lport *, struct fc_frame *); void fnic_free_wq_buf(struct vnic_wq *wq, struct vnic_wq_buf *buf); void fnic_handle_frame(struct work_struct *work); void fnic_handle_link(struct work_struct *work); void fnic_handle_event(struct work_struct *work); int fnic_rq_cmpl_handler(struct fnic *fnic, int); int fnic_alloc_rq_frame(struct vnic_rq *rq); void fnic_free_rq_buf(struct vnic_rq *rq, struct vnic_rq_buf *buf); void fnic_flush_tx(struct fnic *); void fnic_eth_send(struct fcoe_ctlr *, struct sk_buff *skb); void fnic_set_port_id(struct fc_lport *, u32, struct fc_frame *); void fnic_update_mac(struct fc_lport *, u8 *new); void fnic_update_mac_locked(struct fnic *, u8 *new); int fnic_queuecommand(struct Scsi_Host *, struct scsi_cmnd *); int fnic_abort_cmd(struct scsi_cmnd *); int fnic_device_reset(struct scsi_cmnd *); int fnic_host_reset(struct scsi_cmnd *); int fnic_reset(struct Scsi_Host *); void fnic_scsi_cleanup(struct fc_lport *); void fnic_scsi_abort_io(struct fc_lport *); void fnic_empty_scsi_cleanup(struct fc_lport *); void fnic_exch_mgr_reset(struct fc_lport *, u32, u32); int fnic_wq_copy_cmpl_handler(struct fnic *fnic, int); int fnic_wq_cmpl_handler(struct fnic *fnic, int); int fnic_flogi_reg_handler(struct fnic *fnic, u32); void fnic_wq_copy_cleanup_handler(struct vnic_wq_copy *wq, struct fcpio_host_req *desc); int fnic_fw_reset_handler(struct fnic *fnic); void fnic_terminate_rport_io(struct fc_rport *); const char *fnic_state_to_str(unsigned int state); void fnic_log_q_error(struct fnic *fnic); void fnic_handle_link_event(struct fnic *fnic); int fnic_is_abts_pending(struct fnic *, struct scsi_cmnd *); void fnic_handle_fip_frame(struct work_struct *work); void fnic_handle_fip_event(struct fnic *fnic); void fnic_fcoe_reset_vlans(struct fnic *fnic); void fnic_fcoe_evlist_free(struct fnic *fnic); extern void fnic_handle_fip_timer(struct fnic *fnic); static inline int fnic_chk_state_flags_locked(struct fnic *fnic, unsigned long st_flags) { return ((fnic->state_flags & st_flags) == st_flags); } void __fnic_set_state_flags(struct fnic *, unsigned long, unsigned long); void fnic_dump_fchost_stats(struct Scsi_Host *, struct fc_host_statistics *); #endif /* _FNIC_H_ */
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