diff options
Diffstat (limited to 'drivers/staging/rdma/hfi1/hfi.h')
| -rw-r--r-- | drivers/staging/rdma/hfi1/hfi.h | 1950 |
1 files changed, 0 insertions, 1950 deletions
diff --git a/drivers/staging/rdma/hfi1/hfi.h b/drivers/staging/rdma/hfi1/hfi.h deleted file mode 100644 index 4417a0fd3ef9..000000000000 --- a/drivers/staging/rdma/hfi1/hfi.h +++ /dev/null @@ -1,1950 +0,0 @@ -#ifndef _HFI1_KERNEL_H -#define _HFI1_KERNEL_H -/* - * Copyright(c) 2015, 2016 Intel Corporation. - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * BSD LICENSE - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * - Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include <linux/interrupt.h> -#include <linux/pci.h> -#include <linux/dma-mapping.h> -#include <linux/mutex.h> -#include <linux/list.h> -#include <linux/scatterlist.h> -#include <linux/slab.h> -#include <linux/io.h> -#include <linux/fs.h> -#include <linux/completion.h> -#include <linux/kref.h> -#include <linux/sched.h> -#include <linux/cdev.h> -#include <linux/delay.h> -#include <linux/kthread.h> -#include <rdma/rdma_vt.h> - -#include "chip_registers.h" -#include "common.h" -#include "verbs.h" -#include "pio.h" -#include "chip.h" -#include "mad.h" -#include "qsfp.h" -#include "platform.h" -#include "affinity.h" - -/* bumped 1 from s/w major version of TrueScale */ -#define HFI1_CHIP_VERS_MAJ 3U - -/* don't care about this except printing */ -#define HFI1_CHIP_VERS_MIN 0U - -/* The Organization Unique Identifier (Mfg code), and its position in GUID */ -#define HFI1_OUI 0x001175 -#define HFI1_OUI_LSB 40 - -#define DROP_PACKET_OFF 0 -#define DROP_PACKET_ON 1 - -extern unsigned long hfi1_cap_mask; -#define HFI1_CAP_KGET_MASK(mask, cap) ((mask) & HFI1_CAP_##cap) -#define HFI1_CAP_UGET_MASK(mask, cap) \ - (((mask) >> HFI1_CAP_USER_SHIFT) & HFI1_CAP_##cap) -#define HFI1_CAP_KGET(cap) (HFI1_CAP_KGET_MASK(hfi1_cap_mask, cap)) -#define HFI1_CAP_UGET(cap) (HFI1_CAP_UGET_MASK(hfi1_cap_mask, cap)) -#define HFI1_CAP_IS_KSET(cap) (!!HFI1_CAP_KGET(cap)) -#define HFI1_CAP_IS_USET(cap) (!!HFI1_CAP_UGET(cap)) -#define HFI1_MISC_GET() ((hfi1_cap_mask >> HFI1_CAP_MISC_SHIFT) & \ - HFI1_CAP_MISC_MASK) -/* Offline Disabled Reason is 4-bits */ -#define HFI1_ODR_MASK(rsn) ((rsn) & OPA_PI_MASK_OFFLINE_REASON) - -/* - * Control context is always 0 and handles the error packets. - * It also handles the VL15 and multicast packets. - */ -#define HFI1_CTRL_CTXT 0 - -/* - * Driver context will store software counters for each of the events - * associated with these status registers - */ -#define NUM_CCE_ERR_STATUS_COUNTERS 41 -#define NUM_RCV_ERR_STATUS_COUNTERS 64 -#define NUM_MISC_ERR_STATUS_COUNTERS 13 -#define NUM_SEND_PIO_ERR_STATUS_COUNTERS 36 -#define NUM_SEND_DMA_ERR_STATUS_COUNTERS 4 -#define NUM_SEND_EGRESS_ERR_STATUS_COUNTERS 64 -#define NUM_SEND_ERR_STATUS_COUNTERS 3 -#define NUM_SEND_CTXT_ERR_STATUS_COUNTERS 5 -#define NUM_SEND_DMA_ENG_ERR_STATUS_COUNTERS 24 - -/* - * per driver stats, either not device nor port-specific, or - * summed over all of the devices and ports. - * They are described by name via ipathfs filesystem, so layout - * and number of elements can change without breaking compatibility. - * If members are added or deleted hfi1_statnames[] in debugfs.c must - * change to match. - */ -struct hfi1_ib_stats { - __u64 sps_ints; /* number of interrupts handled */ - __u64 sps_errints; /* number of error interrupts */ - __u64 sps_txerrs; /* tx-related packet errors */ - __u64 sps_rcverrs; /* non-crc rcv packet errors */ - __u64 sps_hwerrs; /* hardware errors reported (parity, etc.) */ - __u64 sps_nopiobufs; /* no pio bufs avail from kernel */ - __u64 sps_ctxts; /* number of contexts currently open */ - __u64 sps_lenerrs; /* number of kernel packets where RHF != LRH len */ - __u64 sps_buffull; - __u64 sps_hdrfull; -}; - -extern struct hfi1_ib_stats hfi1_stats; -extern const struct pci_error_handlers hfi1_pci_err_handler; - -/* - * First-cut criterion for "device is active" is - * two thousand dwords combined Tx, Rx traffic per - * 5-second interval. SMA packets are 64 dwords, - * and occur "a few per second", presumably each way. - */ -#define HFI1_TRAFFIC_ACTIVE_THRESHOLD (2000) - -/* - * Below contains all data related to a single context (formerly called port). - */ - -#ifdef CONFIG_DEBUG_FS -struct hfi1_opcode_stats_perctx; -#endif - -struct ctxt_eager_bufs { - ssize_t size; /* total size of eager buffers */ - u32 count; /* size of buffers array */ - u32 numbufs; /* number of buffers allocated */ - u32 alloced; /* number of rcvarray entries used */ - u32 rcvtid_size; /* size of each eager rcv tid */ - u32 threshold; /* head update threshold */ - struct eager_buffer { - void *addr; - dma_addr_t phys; - ssize_t len; - } *buffers; - struct { - void *addr; - dma_addr_t phys; - } *rcvtids; -}; - -struct exp_tid_set { - struct list_head list; - u32 count; -}; - -struct hfi1_ctxtdata { - /* shadow the ctxt's RcvCtrl register */ - u64 rcvctrl; - /* rcvhdrq base, needs mmap before useful */ - void *rcvhdrq; - /* kernel virtual address where hdrqtail is updated */ - volatile __le64 *rcvhdrtail_kvaddr; - /* - * Shared page for kernel to signal user processes that send buffers - * need disarming. The process should call HFI1_CMD_DISARM_BUFS - * or HFI1_CMD_ACK_EVENT with IPATH_EVENT_DISARM_BUFS set. - */ - unsigned long *user_event_mask; - /* when waiting for rcv or pioavail */ - wait_queue_head_t wait; - /* rcvhdrq size (for freeing) */ - size_t rcvhdrq_size; - /* number of rcvhdrq entries */ - u16 rcvhdrq_cnt; - /* size of each of the rcvhdrq entries */ - u16 rcvhdrqentsize; - /* mmap of hdrq, must fit in 44 bits */ - dma_addr_t rcvhdrq_phys; - dma_addr_t rcvhdrqtailaddr_phys; - struct ctxt_eager_bufs egrbufs; - /* this receive context's assigned PIO ACK send context */ - struct send_context *sc; - - /* dynamic receive available interrupt timeout */ - u32 rcvavail_timeout; - /* - * number of opens (including slave sub-contexts) on this instance - * (ignoring forks, dup, etc. for now) - */ - int cnt; - /* - * how much space to leave at start of eager TID entries for - * protocol use, on each TID - */ - /* instead of calculating it */ - unsigned ctxt; - /* non-zero if ctxt is being shared. */ - u16 subctxt_cnt; - /* non-zero if ctxt is being shared. */ - u16 subctxt_id; - u8 uuid[16]; - /* job key */ - u16 jkey; - /* number of RcvArray groups for this context. */ - u32 rcv_array_groups; - /* index of first eager TID entry. */ - u32 eager_base; - /* number of expected TID entries */ - u32 expected_count; - /* index of first expected TID entry. */ - u32 expected_base; - - struct exp_tid_set tid_group_list; - struct exp_tid_set tid_used_list; - struct exp_tid_set tid_full_list; - - /* lock protecting all Expected TID data */ - struct mutex exp_lock; - /* number of pio bufs for this ctxt (all procs, if shared) */ - u32 piocnt; - /* first pio buffer for this ctxt */ - u32 pio_base; - /* chip offset of PIO buffers for this ctxt */ - u32 piobufs; - /* per-context configuration flags */ - u32 flags; - /* per-context event flags for fileops/intr communication */ - unsigned long event_flags; - /* WAIT_RCV that timed out, no interrupt */ - u32 rcvwait_to; - /* WAIT_PIO that timed out, no interrupt */ - u32 piowait_to; - /* WAIT_RCV already happened, no wait */ - u32 rcvnowait; - /* WAIT_PIO already happened, no wait */ - u32 pionowait; - /* total number of polled urgent packets */ - u32 urgent; - /* saved total number of polled urgent packets for poll edge trigger */ - u32 urgent_poll; - /* pid of process using this ctxt */ - pid_t pid; - pid_t subpid[HFI1_MAX_SHARED_CTXTS]; - /* same size as task_struct .comm[], command that opened context */ - char comm[TASK_COMM_LEN]; - /* so file ops can get at unit */ - struct hfi1_devdata *dd; - /* so functions that need physical port can get it easily */ - struct hfi1_pportdata *ppd; - /* A page of memory for rcvhdrhead, rcvegrhead, rcvegrtail * N */ - void *subctxt_uregbase; - /* An array of pages for the eager receive buffers * N */ - void *subctxt_rcvegrbuf; - /* An array of pages for the eager header queue entries * N */ - void *subctxt_rcvhdr_base; - /* The version of the library which opened this ctxt */ - u32 userversion; - /* Bitmask of active slaves */ - u32 active_slaves; - /* Type of packets or conditions we want to poll for */ - u16 poll_type; - /* receive packet sequence counter */ - u8 seq_cnt; - u8 redirect_seq_cnt; - /* ctxt rcvhdrq head offset */ - u32 head; - u32 pkt_count; - /* QPs waiting for context processing */ - struct list_head qp_wait_list; - /* interrupt handling */ - u64 imask; /* clear interrupt mask */ - int ireg; /* clear interrupt register */ - unsigned numa_id; /* numa node of this context */ - /* verbs stats per CTX */ - struct hfi1_opcode_stats_perctx *opstats; - /* - * This is the kernel thread that will keep making - * progress on the user sdma requests behind the scenes. - * There is one per context (shared contexts use the master's). - */ - struct task_struct *progress; - struct list_head sdma_queues; - /* protect sdma queues */ - spinlock_t sdma_qlock; - - /* Is ASPM interrupt supported for this context */ - bool aspm_intr_supported; - /* ASPM state (enabled/disabled) for this context */ - bool aspm_enabled; - /* Timer for re-enabling ASPM if interrupt activity quietens down */ - struct timer_list aspm_timer; - /* Lock to serialize between intr, timer intr and user threads */ - spinlock_t aspm_lock; - /* Is ASPM processing enabled for this context (in intr context) */ - bool aspm_intr_enable; - /* Last interrupt timestamp */ - ktime_t aspm_ts_last_intr; - /* Last timestamp at which we scheduled a timer for this context */ - ktime_t aspm_ts_timer_sched; - - /* - * The interrupt handler for a particular receive context can vary - * throughout it's lifetime. This is not a lock protected data member so - * it must be updated atomically and the prev and new value must always - * be valid. Worst case is we process an extra interrupt and up to 64 - * packets with the wrong interrupt handler. - */ - int (*do_interrupt)(struct hfi1_ctxtdata *rcd, int threaded); -}; - -/* - * Represents a single packet at a high level. Put commonly computed things in - * here so we do not have to keep doing them over and over. The rule of thumb is - * if something is used one time to derive some value, store that something in - * here. If it is used multiple times, then store the result of that derivation - * in here. - */ -struct hfi1_packet { - void *ebuf; - void *hdr; - struct hfi1_ctxtdata *rcd; - __le32 *rhf_addr; - struct rvt_qp *qp; - struct hfi1_other_headers *ohdr; - u64 rhf; - u32 maxcnt; - u32 rhqoff; - u32 hdrqtail; - int numpkt; - u16 tlen; - u16 hlen; - s16 etail; - u16 rsize; - u8 updegr; - u8 rcv_flags; - u8 etype; -}; - -static inline bool has_sc4_bit(struct hfi1_packet *p) -{ - return !!rhf_dc_info(p->rhf); -} - -/* - * Private data for snoop/capture support. - */ -struct hfi1_snoop_data { - int mode_flag; - struct cdev cdev; - struct device *class_dev; - /* protect snoop data */ - spinlock_t snoop_lock; - struct list_head queue; - wait_queue_head_t waitq; - void *filter_value; - int (*filter_callback)(void *hdr, void *data, void *value); - u64 dcc_cfg; /* saved value of DCC Cfg register */ -}; - -/* snoop mode_flag values */ -#define HFI1_PORT_SNOOP_MODE 1U -#define HFI1_PORT_CAPTURE_MODE 2U - -struct rvt_sge_state; - -/* - * Get/Set IB link-level config parameters for f_get/set_ib_cfg() - * Mostly for MADs that set or query link parameters, also ipath - * config interfaces - */ -#define HFI1_IB_CFG_LIDLMC 0 /* LID (LS16b) and Mask (MS16b) */ -#define HFI1_IB_CFG_LWID_DG_ENB 1 /* allowed Link-width downgrade */ -#define HFI1_IB_CFG_LWID_ENB 2 /* allowed Link-width */ -#define HFI1_IB_CFG_LWID 3 /* currently active Link-width */ -#define HFI1_IB_CFG_SPD_ENB 4 /* allowed Link speeds */ -#define HFI1_IB_CFG_SPD 5 /* current Link spd */ -#define HFI1_IB_CFG_RXPOL_ENB 6 /* Auto-RX-polarity enable */ -#define HFI1_IB_CFG_LREV_ENB 7 /* Auto-Lane-reversal enable */ -#define HFI1_IB_CFG_LINKLATENCY 8 /* Link Latency (IB1.2 only) */ -#define HFI1_IB_CFG_HRTBT 9 /* IB heartbeat off/enable/auto; DDR/QDR only */ -#define HFI1_IB_CFG_OP_VLS 10 /* operational VLs */ -#define HFI1_IB_CFG_VL_HIGH_CAP 11 /* num of VL high priority weights */ -#define HFI1_IB_CFG_VL_LOW_CAP 12 /* num of VL low priority weights */ -#define HFI1_IB_CFG_OVERRUN_THRESH 13 /* IB overrun threshold */ -#define HFI1_IB_CFG_PHYERR_THRESH 14 /* IB PHY error threshold */ -#define HFI1_IB_CFG_LINKDEFAULT 15 /* IB link default (sleep/poll) */ -#define HFI1_IB_CFG_PKEYS 16 /* update partition keys */ -#define HFI1_IB_CFG_MTU 17 /* update MTU in IBC */ -#define HFI1_IB_CFG_VL_HIGH_LIMIT 19 -#define HFI1_IB_CFG_PMA_TICKS 20 /* PMA sample tick resolution */ -#define HFI1_IB_CFG_PORT 21 /* switch port we are connected to */ - -/* - * HFI or Host Link States - * - * These describe the states the driver thinks the logical and physical - * states are in. Used as an argument to set_link_state(). Implemented - * as bits for easy multi-state checking. The actual state can only be - * one. - */ -#define __HLS_UP_INIT_BP 0 -#define __HLS_UP_ARMED_BP 1 -#define __HLS_UP_ACTIVE_BP 2 -#define __HLS_DN_DOWNDEF_BP 3 /* link down default */ -#define __HLS_DN_POLL_BP 4 -#define __HLS_DN_DISABLE_BP 5 -#define __HLS_DN_OFFLINE_BP 6 -#define __HLS_VERIFY_CAP_BP 7 -#define __HLS_GOING_UP_BP 8 -#define __HLS_GOING_OFFLINE_BP 9 -#define __HLS_LINK_COOLDOWN_BP 10 - -#define HLS_UP_INIT BIT(__HLS_UP_INIT_BP) -#define HLS_UP_ARMED BIT(__HLS_UP_ARMED_BP) -#define HLS_UP_ACTIVE BIT(__HLS_UP_ACTIVE_BP) -#define HLS_DN_DOWNDEF BIT(__HLS_DN_DOWNDEF_BP) /* link down default */ -#define HLS_DN_POLL BIT(__HLS_DN_POLL_BP) -#define HLS_DN_DISABLE BIT(__HLS_DN_DISABLE_BP) -#define HLS_DN_OFFLINE BIT(__HLS_DN_OFFLINE_BP) -#define HLS_VERIFY_CAP BIT(__HLS_VERIFY_CAP_BP) -#define HLS_GOING_UP BIT(__HLS_GOING_UP_BP) -#define HLS_GOING_OFFLINE BIT(__HLS_GOING_OFFLINE_BP) -#define HLS_LINK_COOLDOWN BIT(__HLS_LINK_COOLDOWN_BP) - -#define HLS_UP (HLS_UP_INIT | HLS_UP_ARMED | HLS_UP_ACTIVE) -#define HLS_DOWN ~(HLS_UP) - -/* use this MTU size if none other is given */ -#define HFI1_DEFAULT_ACTIVE_MTU 10240 -/* use this MTU size as the default maximum */ -#define HFI1_DEFAULT_MAX_MTU 10240 -/* default partition key */ -#define DEFAULT_PKEY 0xffff - -/* - * Possible fabric manager config parameters for fm_{get,set}_table() - */ -#define FM_TBL_VL_HIGH_ARB 1 /* Get/set VL high prio weights */ -#define FM_TBL_VL_LOW_ARB 2 /* Get/set VL low prio weights */ -#define FM_TBL_BUFFER_CONTROL 3 /* Get/set Buffer Control */ -#define FM_TBL_SC2VLNT 4 /* Get/set SC->VLnt */ -#define FM_TBL_VL_PREEMPT_ELEMS 5 /* Get (no set) VL preempt elems */ -#define FM_TBL_VL_PREEMPT_MATRIX 6 /* Get (no set) VL preempt matrix */ - -/* - * Possible "operations" for f_rcvctrl(ppd, op, ctxt) - * these are bits so they can be combined, e.g. - * HFI1_RCVCTRL_INTRAVAIL_ENB | HFI1_RCVCTRL_CTXT_ENB - */ -#define HFI1_RCVCTRL_TAILUPD_ENB 0x01 -#define HFI1_RCVCTRL_TAILUPD_DIS 0x02 -#define HFI1_RCVCTRL_CTXT_ENB 0x04 -#define HFI1_RCVCTRL_CTXT_DIS 0x08 -#define HFI1_RCVCTRL_INTRAVAIL_ENB 0x10 -#define HFI1_RCVCTRL_INTRAVAIL_DIS 0x20 -#define HFI1_RCVCTRL_PKEY_ENB 0x40 /* Note, default is enabled */ -#define HFI1_RCVCTRL_PKEY_DIS 0x80 -#define HFI1_RCVCTRL_TIDFLOW_ENB 0x0400 -#define HFI1_RCVCTRL_TIDFLOW_DIS 0x0800 -#define HFI1_RCVCTRL_ONE_PKT_EGR_ENB 0x1000 -#define HFI1_RCVCTRL_ONE_PKT_EGR_DIS 0x2000 -#define HFI1_RCVCTRL_NO_RHQ_DROP_ENB 0x4000 -#define HFI1_RCVCTRL_NO_RHQ_DROP_DIS 0x8000 -#define HFI1_RCVCTRL_NO_EGR_DROP_ENB 0x10000 -#define HFI1_RCVCTRL_NO_EGR_DROP_DIS 0x20000 - -/* partition enforcement flags */ -#define HFI1_PART_ENFORCE_IN 0x1 -#define HFI1_PART_ENFORCE_OUT 0x2 - -/* how often we check for synthetic counter wrap around */ -#define SYNTH_CNT_TIME 2 - -/* Counter flags */ -#define CNTR_NORMAL 0x0 /* Normal counters, just read register */ -#define CNTR_SYNTH 0x1 /* Synthetic counters, saturate at all 1s */ -#define CNTR_DISABLED 0x2 /* Disable this counter */ -#define CNTR_32BIT 0x4 /* Simulate 64 bits for this counter */ -#define CNTR_VL 0x8 /* Per VL counter */ -#define CNTR_SDMA 0x10 -#define CNTR_INVALID_VL -1 /* Specifies invalid VL */ -#define CNTR_MODE_W 0x0 -#define CNTR_MODE_R 0x1 - -/* VLs Supported/Operational */ -#define HFI1_MIN_VLS_SUPPORTED 1 -#define HFI1_MAX_VLS_SUPPORTED 8 - -static inline void incr_cntr64(u64 *cntr) -{ - if (*cntr < (u64)-1LL) - (*cntr)++; -} - -static inline void incr_cntr32(u32 *cntr) -{ - if (*cntr < (u32)-1LL) - (*cntr)++; -} - -#define MAX_NAME_SIZE 64 -struct hfi1_msix_entry { - enum irq_type type; - struct msix_entry msix; - void *arg; - char name[MAX_NAME_SIZE]; - cpumask_t mask; -}; - -/* per-SL CCA information */ -struct cca_timer { - struct hrtimer hrtimer; - struct hfi1_pportdata *ppd; /* read-only */ - int sl; /* read-only */ - u16 ccti; /* read/write - current value of CCTI */ -}; - -struct link_down_reason { - /* - * SMA-facing value. Should be set from .latest when - * HLS_UP_* -> HLS_DN_* transition actually occurs. - */ - u8 sma; - u8 latest; -}; - -enum { - LO_PRIO_TABLE, - HI_PRIO_TABLE, - MAX_PRIO_TABLE -}; - -struct vl_arb_cache { - /* protect vl arb cache */ - spinlock_t lock; - struct ib_vl_weight_elem table[VL_ARB_TABLE_SIZE]; -}; - -/* - * The structure below encapsulates data relevant to a physical IB Port. - * Current chips support only one such port, but the separation - * clarifies things a bit. Note that to conform to IB conventions, - * port-numbers are one-based. The first or only port is port1. - */ -struct hfi1_pportdata { - struct hfi1_ibport ibport_data; - - struct hfi1_devdata *dd; - struct kobject pport_cc_kobj; - struct kobject sc2vl_kobj; - struct kobject sl2sc_kobj; - struct kobject vl2mtu_kobj; - - /* PHY support */ - u32 port_type; - struct qsfp_data qsfp_info; - - /* GUID for this interface, in host order */ - u64 guid; - /* GUID for peer interface, in host order */ - u64 neighbor_guid; - - /* up or down physical link state */ - u32 linkup; - - /* - * this address is mapped read-only into user processes so they can - * get status cheaply, whenever they want. One qword of status per port - */ - u64 *statusp; - - /* SendDMA related entries */ - - struct workqueue_struct *hfi1_wq; - - /* move out of interrupt context */ - struct work_struct link_vc_work; - struct work_struct link_up_work; - struct work_struct link_down_work; - struct work_struct sma_message_work; - struct work_struct freeze_work; - struct work_struct link_downgrade_work; - struct work_struct link_bounce_work; - /* host link state variables */ - struct mutex hls_lock; - u32 host_link_state; - - spinlock_t sdma_alllock ____cacheline_aligned_in_smp; - - u32 lstate; /* logical link state */ - - /* these are the "32 bit" regs */ - - u32 ibmtu; /* The MTU programmed for this unit */ - /* - * Current max size IB packet (in bytes) including IB headers, that - * we can send. Changes when ibmtu changes. - */ - u32 ibmaxlen; - u32 current_egress_rate; /* units [10^6 bits/sec] */ - /* LID programmed for this instance */ - u16 lid; - /* list of pkeys programmed; 0 if not set */ - u16 pkeys[MAX_PKEY_VALUES]; - u16 link_width_supported; - u16 link_width_downgrade_supported; - u16 link_speed_supported; - u16 link_width_enabled; - u16 link_width_downgrade_enabled; - u16 link_speed_enabled; - u16 link_width_active; - u16 link_width_downgrade_tx_active; - u16 link_width_downgrade_rx_active; - u16 link_speed_active; - u8 vls_supported; - u8 vls_operational; - u8 actual_vls_operational; - /* LID mask control */ - u8 lmc; - /* Rx Polarity inversion (compensate for ~tx on partner) */ - u8 rx_pol_inv; - - u8 hw_pidx; /* physical port index */ - u8 port; /* IB port number and index into dd->pports - 1 */ - /* type of neighbor node */ - u8 neighbor_type; - u8 neighbor_normal; - u8 neighbor_fm_security; /* 1 if firmware checking is disabled */ - u8 neighbor_port_number; - u8 is_sm_config_started; - u8 offline_disabled_reason; - u8 is_active_optimize_enabled; - u8 driver_link_ready; /* driver ready for active link */ - u8 link_enabled; /* link enabled? */ - u8 linkinit_reason; - u8 local_tx_rate; /* rate given to 8051 firmware */ - u8 last_pstate; /* info only */ - - /* placeholders for IB MAD packet settings */ - u8 overrun_threshold; - u8 phy_error_threshold; - - /* Used to override LED behavior for things like maintenance beaconing*/ - /* - * Alternates per phase of blink - * [0] holds LED off duration, [1] holds LED on duration - */ - unsigned long led_override_vals[2]; - u8 led_override_phase; /* LSB picks from vals[] */ - atomic_t led_override_timer_active; - /* Used to flash LEDs in override mode */ - struct timer_list led_override_timer; - - u32 sm_trap_qp; - u32 sa_qp; - - /* - * cca_timer_lock protects access to the per-SL cca_timer - * structures (specifically the ccti member). - */ - spinlock_t cca_timer_lock ____cacheline_aligned_in_smp; - struct cca_timer cca_timer[OPA_MAX_SLS]; - - /* List of congestion control table entries */ - struct ib_cc_table_entry_shadow ccti_entries[CC_TABLE_SHADOW_MAX]; - - /* congestion entries, each entry corresponding to a SL */ - struct opa_congestion_setting_entry_shadow - congestion_entries[OPA_MAX_SLS]; - - /* - * cc_state_lock protects (write) access to the per-port - * struct cc_state. - */ - spinlock_t cc_state_lock ____cacheline_aligned_in_smp; - - struct cc_state __rcu *cc_state; - - /* Total number of congestion control table entries */ - u16 total_cct_entry; - - /* Bit map identifying service level */ - u32 cc_sl_control_map; - - /* CA's max number of 64 entry units in the congestion control table */ - u8 cc_max_table_entries; - - /* - * begin congestion log related entries - * cc_log_lock protects all congestion log related data - */ - spinlock_t cc_log_lock ____cacheline_aligned_in_smp; - u8 threshold_cong_event_map[OPA_MAX_SLS / 8]; - u16 threshold_event_counter; - struct opa_hfi1_cong_log_event_internal cc_events[OPA_CONG_LOG_ELEMS]; - int cc_log_idx; /* index for logging events */ - int cc_mad_idx; /* index for reporting events */ - /* end congestion log related entries */ - - struct vl_arb_cache vl_arb_cache[MAX_PRIO_TABLE]; - - /* port relative counter buffer */ - u64 *cntrs; - /* port relative synthetic counter buffer */ - u64 *scntrs; - /* port_xmit_discards are synthesized from different egress errors */ - u64 port_xmit_discards; - u64 port_xmit_discards_vl[C_VL_COUNT]; - u64 port_xmit_constraint_errors; - u64 port_rcv_constraint_errors; - /* count of 'link_err' interrupts from DC */ - u64 link_downed; - /* number of times link retrained successfully */ - u64 link_up; - /* number of times a link unknown frame was reported */ - u64 unknown_frame_count; - /* port_ltp_crc_mode is returned in 'portinfo' MADs */ - u16 port_ltp_crc_mode; - /* port_crc_mode_enabled is the crc we support */ - u8 port_crc_mode_enabled; - /* mgmt_allowed is also returned in 'portinfo' MADs */ - u8 mgmt_allowed; - u8 part_enforce; /* partition enforcement flags */ - struct link_down_reason local_link_down_reason; - struct link_down_reason neigh_link_down_reason; - /* Value to be sent to link peer on LinkDown .*/ - u8 remote_link_down_reason; - /* Error events that will cause a port bounce. */ - u32 port_error_action; - struct work_struct linkstate_active_work; - /* Does this port need to prescan for FECNs */ - bool cc_prescan; -}; - -typedef int (*rhf_rcv_function_ptr)(struct hfi1_packet *packet); - -typedef void (*opcode_handler)(struct hfi1_packet *packet); - -/* return values for the RHF receive functions */ -#define RHF_RCV_CONTINUE 0 /* keep going */ -#define RHF_RCV_DONE 1 /* stop, this packet processed */ -#define RHF_RCV_REPROCESS 2 /* stop. retain this packet */ - -struct rcv_array_data { - u8 group_size; - u16 ngroups; - u16 nctxt_extra; -}; - -struct per_vl_data { - u16 mtu; - struct send_context *sc; -}; - -/* 16 to directly index */ -#define PER_VL_SEND_CONTEXTS 16 - -struct err_info_rcvport { - u8 status_and_code; - u64 packet_flit1; - u64 packet_flit2; -}; - -struct err_info_constraint { - u8 status; - u16 pkey; - u32 slid; -}; - -struct hfi1_temp { - unsigned int curr; /* current temperature */ - unsigned int lo_lim; /* low temperature limit */ - unsigned int hi_lim; /* high temperature limit */ - unsigned int crit_lim; /* critical temperature limit */ - u8 triggers; /* temperature triggers */ -}; - -/* common data between shared ASIC HFIs */ -struct hfi1_asic_data { - struct hfi1_devdata *dds[2]; /* back pointers */ - struct mutex asic_resource_mutex; -}; - -/* device data struct now contains only "general per-device" info. - * fields related to a physical IB port are in a hfi1_pportdata struct. - */ -struct sdma_engine; -struct sdma_vl_map; - -#define BOARD_VERS_MAX 96 /* how long the version string can be */ -#define SERIAL_MAX 16 /* length of the serial number */ - -typedef int (*send_routine)(struct rvt_qp *, struct hfi1_pkt_state *, u64); -struct hfi1_devdata { - struct hfi1_ibdev verbs_dev; /* must be first */ - struct list_head list; - /* pointers to related structs for this device */ - /* pci access data structure */ - struct pci_dev *pcidev; - struct cdev user_cdev; - struct cdev diag_cdev; - struct cdev ui_cdev; - struct device *user_device; - struct device *diag_device; - struct device *ui_device; - - /* mem-mapped pointer to base of chip regs */ - u8 __iomem *kregbase; - /* end of mem-mapped chip space excluding sendbuf and user regs */ - u8 __iomem *kregend; - /* physical address of chip for io_remap, etc. */ - resource_size_t physaddr; - /* receive context data */ - struct hfi1_ctxtdata **rcd; - /* send context data */ - struct send_context_info *send_contexts; - /* map hardware send contexts to software index */ - u8 *hw_to_sw; - /* spinlock for allocating and releasing send context resources */ - spinlock_t sc_lock; - /* Per VL data. Enough for all VLs but not all elements are set/used. */ - struct per_vl_data vld[PER_VL_SEND_CONTEXTS]; - /* lock for pio_map */ - spinlock_t pio_map_lock; - /* array of kernel send contexts */ - struct send_context **kernel_send_context; - /* array of vl maps */ - struct pio_vl_map __rcu *pio_map; - /* seqlock for sc2vl */ - seqlock_t sc2vl_lock; - u64 sc2vl[4]; - /* Send Context initialization lock. */ - spinlock_t sc_init_lock; - - /* fields common to all SDMA engines */ - - /* default flags to last descriptor */ - u64 default_desc1; - volatile __le64 *sdma_heads_dma; /* DMA'ed by chip */ - dma_addr_t sdma_heads_phys; - void *sdma_pad_dma; /* DMA'ed by chip */ - dma_addr_t sdma_pad_phys; - /* for deallocation */ - size_t sdma_heads_size; - /* number from the chip */ - u32 chip_sdma_engines; - /* num used */ - u32 num_sdma; - /* lock for sdma_map */ - spinlock_t sde_map_lock; - /* array of engines sized by num_sdma */ - struct sdma_engine *per_sdma; - /* array of vl maps */ - struct sdma_vl_map __rcu *sdma_map; - /* SPC freeze waitqueue and variable */ - wait_queue_head_t sdma_unfreeze_wq; - atomic_t sdma_unfreeze_count; - - /* common data between shared ASIC HFIs in this OS */ - struct hfi1_asic_data *asic_data; - - /* hfi1_pportdata, points to array of (physical) port-specific - * data structs, indexed by pidx (0..n-1) - */ - struct hfi1_pportdata *pport; - - /* mem-mapped pointer to base of PIO buffers */ - void __iomem *piobase; - /* - * write-combining mem-mapped pointer to base of RcvArray - * memory. - */ - void __iomem *rcvarray_wc; - /* - * credit return base - a per-NUMA range of DMA address that - * the chip will use to update the per-context free counter - */ - struct credit_return_base *cr_base; - - /* send context numbers and sizes for each type */ - struct sc_config_sizes sc_sizes[SC_MAX]; - - u32 lcb_access_count; /* count of LCB users */ - - char *boardname; /* human readable board info */ - - /* device (not port) flags, basically device capabilities */ - u32 flags; - - /* reset value */ - u64 z_int_counter; - u64 z_rcv_limit; - u64 z_send_schedule; - /* percpu int_counter */ - u64 __percpu *int_counter; - u64 __percpu *rcv_limit; - u64 __percpu *send_schedule; - /* number of receive contexts in use by the driver */ - u32 num_rcv_contexts; - /* number of pio send contexts in use by the driver */ - u32 num_send_contexts; - /* - * number of ctxts available for PSM open - */ - u32 freectxts; - /* total number of available user/PSM contexts */ - u32 num_user_contexts; - /* base receive interrupt timeout, in CSR units */ - u32 rcv_intr_timeout_csr; - - u64 __iomem *egrtidbase; - spinlock_t sendctrl_lock; /* protect changes to SendCtrl */ - spinlock_t rcvctrl_lock; /* protect changes to RcvCtrl */ - /* around rcd and (user ctxts) ctxt_cnt use (intr vs free) */ - spinlock_t uctxt_lock; /* rcd and user context changes */ - /* exclusive access to 8051 */ - spinlock_t dc8051_lock; - /* exclusive access to 8051 memory */ - spinlock_t dc8051_memlock; - int dc8051_timed_out; /* remember if the 8051 timed out */ - /* - * A page that will hold event notification bitmaps for all - * contexts. This page will be mapped into all processes. - */ - unsigned long *events; - /* - * per unit status, see also portdata statusp - * mapped read-only into user processes so they can get unit and - * IB link status cheaply - */ - struct hfi1_status *status; - u32 freezelen; /* max length of freezemsg */ - - /* revision register shadow */ - u64 revision; - /* Base GUID for device (network order) */ - u64 base_guid; - - /* these are the "32 bit" regs */ - - /* value we put in kr_rcvhdrsize */ - u32 rcvhdrsize; - /* number of receive contexts the chip supports */ - u32 chip_rcv_contexts; - /* number of receive array entries */ - u32 chip_rcv_array_count; - /* number of PIO send contexts the chip supports */ - u32 chip_send_contexts; - /* number of bytes in the PIO memory buffer */ - u32 chip_pio_mem_size; - /* number of bytes in the SDMA memory buffer */ - u32 chip_sdma_mem_size; - - /* size of each rcvegrbuffer */ - u32 rcvegrbufsize; - /* log2 of above */ - u16 rcvegrbufsize_shift; - /* both sides of the PCIe link are gen3 capable */ - u8 link_gen3_capable; - /* localbus width (1, 2,4,8,16,32) from config space */ - u32 lbus_width; - /* localbus speed in MHz */ - u32 lbus_speed; - int unit; /* unit # of this chip */ - int node; /* home node of this chip */ - - /* save these PCI fields to restore after a reset */ - u32 pcibar0; - u32 pcibar1; - u32 pci_rom; - u16 pci_command; - u16 pcie_devctl; - u16 pcie_lnkctl; - u16 pcie_devctl2; - u32 pci_msix0; - u32 pci_lnkctl3; - u32 pci_tph2; - - /* - * ASCII serial number, from flash, large enough for original - * all digit strings, and longer serial number format - */ - u8 serial[SERIAL_MAX]; - /* human readable board version */ - u8 boardversion[BOARD_VERS_MAX]; - u8 lbus_info[32]; /* human readable localbus info */ - /* chip major rev, from CceRevision */ - u8 majrev; - /* chip minor rev, from CceRevision */ - u8 minrev; - /* hardware ID */ - u8 hfi1_id; - /* implementation code */ - u8 icode; - /* default link down value (poll/sleep) */ - u8 link_default; - /* vAU of this device */ - u8 vau; - /* vCU of this device */ - u8 vcu; - /* link credits of this device */ - u16 link_credits; - /* initial vl15 credits to use */ - u16 vl15_init; - - /* Misc small ints */ - /* Number of physical ports available */ - u8 num_pports; - /* Lowest context number which can be used by user processes */ - u8 first_user_ctxt; - u8 n_krcv_queues; - u8 qos_shift; - u8 qpn_mask; - - u16 rhf_offset; /* offset of RHF within receive header entry */ - u16 irev; /* implementation revision */ - u16 dc8051_ver; /* 8051 firmware version */ - - struct platform_config platform_config; - struct platform_config_cache pcfg_cache; - - struct diag_client *diag_client; - spinlock_t hfi1_diag_trans_lock; /* protect diag observer ops */ - - u8 psxmitwait_supported; - /* cycle length of PS* counters in HW (in picoseconds) */ - u16 psxmitwait_check_rate; - /* high volume overflow errors deferred to tasklet */ - struct tasklet_struct error_tasklet; - - /* MSI-X information */ - struct hfi1_msix_entry *msix_entries; - u32 num_msix_entries; - - /* INTx information */ - u32 requested_intx_irq; /* did we request one? */ - char intx_name[MAX_NAME_SIZE]; /* INTx name */ - - /* general interrupt: mask of handled interrupts */ - u64 gi_mask[CCE_NUM_INT_CSRS]; - - struct rcv_array_data rcv_entries; - - /* - * 64 bit synthetic counters - */ - struct timer_list synth_stats_timer; - - /* - * device counters - */ - char *cntrnames; - size_t cntrnameslen; - size_t ndevcntrs; - u64 *cntrs; - u64 *scntrs; - - /* - * remembered values for synthetic counters - */ - u64 last_tx; - u64 last_rx; - - /* - * per-port counters - */ - size_t nportcntrs; - char *portcntrnames; - size_t portcntrnameslen; - - struct hfi1_snoop_data hfi1_snoop; - - struct err_info_rcvport err_info_rcvport; - struct err_info_constraint err_info_rcv_constraint; - struct err_info_constraint err_info_xmit_constraint; - u8 err_info_uncorrectable; - u8 err_info_fmconfig; - - atomic_t drop_packet; - u8 do_drop; - - /* - * Software counters for the status bits defined by the - * associated error status registers - */ - u64 cce_err_status_cnt[NUM_CCE_ERR_STATUS_COUNTERS]; - u64 rcv_err_status_cnt[NUM_RCV_ERR_STATUS_COUNTERS]; - u64 misc_err_status_cnt[NUM_MISC_ERR_STATUS_COUNTERS]; - u64 send_pio_err_status_cnt[NUM_SEND_PIO_ERR_STATUS_COUNTERS]; - u64 send_dma_err_status_cnt[NUM_SEND_DMA_ERR_STATUS_COUNTERS]; - u64 send_egress_err_status_cnt[NUM_SEND_EGRESS_ERR_STATUS_COUNTERS]; - u64 send_err_status_cnt[NUM_SEND_ERR_STATUS_COUNTERS]; - - /* Software counter that spans all contexts */ - u64 sw_ctxt_err_status_cnt[NUM_SEND_CTXT_ERR_STATUS_COUNTERS]; - /* Software counter that spans all DMA engines */ - u64 sw_send_dma_eng_err_status_cnt[ - NUM_SEND_DMA_ENG_ERR_STATUS_COUNTERS]; - /* Software counter that aggregates all cce_err_status errors */ - u64 sw_cce_err_status_aggregate; - - /* receive interrupt functions */ - rhf_rcv_function_ptr *rhf_rcv_function_map; - rhf_rcv_function_ptr normal_rhf_rcv_functions[8]; - - /* - * Handlers for outgoing data so that snoop/capture does not - * have to have its hooks in the send path - */ - send_routine process_pio_send; - send_routine process_dma_send; - void (*pio_inline_send)(struct hfi1_devdata *dd, struct pio_buf *pbuf, - u64 pbc, const void *from, size_t count); - - /* OUI comes from the HW. Used everywhere as 3 separate bytes. */ - u8 oui1; - u8 oui2; - u8 oui3; - /* Timer and counter used to detect RcvBufOvflCnt changes */ - struct timer_list rcverr_timer; - u32 rcv_ovfl_cnt; - - wait_queue_head_t event_queue; - - /* Save the enabled LCB error bits */ - u64 lcb_err_en; - u8 dc_shutdown; - - /* receive context tail dummy address */ - __le64 *rcvhdrtail_dummy_kvaddr; - dma_addr_t rcvhdrtail_dummy_physaddr; - - bool eprom_available; /* true if EPROM is available for this device */ - bool aspm_supported; /* Does HW support ASPM */ - bool aspm_enabled; /* ASPM state: enabled/disabled */ - /* Serialize ASPM enable/disable between multiple verbs contexts */ - spinlock_t aspm_lock; - /* Number of verbs contexts which have disabled ASPM */ - atomic_t aspm_disabled_cnt; - - struct hfi1_affinity *affinity; - struct kobject kobj; -}; - -/* 8051 firmware version helper */ -#define dc8051_ver(a, b) ((a) << 8 | (b)) - -/* f_put_tid types */ -#define PT_EXPECTED 0 -#define PT_EAGER 1 -#define PT_INVALID 2 - -struct tid_rb_node; -struct mmu_rb_node; - -/* Private data for file operations */ -struct hfi1_filedata { - struct hfi1_ctxtdata *uctxt; - unsigned subctxt; - struct hfi1_user_sdma_comp_q *cq; - struct hfi1_user_sdma_pkt_q *pq; - /* for cpu affinity; -1 if none */ - int rec_cpu_num; - u32 tid_n_pinned; - struct rb_root tid_rb_root; - struct tid_rb_node **entry_to_rb; - spinlock_t tid_lock; /* protect tid_[limit,used] counters */ - u32 tid_limit; - u32 tid_used; - u32 *invalid_tids; - u32 invalid_tid_idx; - /* protect invalid_tids array and invalid_tid_idx */ - spinlock_t invalid_lock; -}; - -extern struct list_head hfi1_dev_list; -extern spinlock_t hfi1_devs_lock; -struct hfi1_devdata *hfi1_lookup(int unit); -extern u32 hfi1_cpulist_count; -extern unsigned long *hfi1_cpulist; - -extern unsigned int snoop_drop_send; -extern unsigned int snoop_force_capture; -int hfi1_init(struct hfi1_devdata *, int); -int hfi1_count_units(int *npresentp, int *nupp); -int hfi1_count_active_units(void); - -int hfi1_diag_add(struct hfi1_devdata *); -void hfi1_diag_remove(struct hfi1_devdata *); -void handle_linkup_change(struct hfi1_devdata *dd, u32 linkup); - -void handle_user_interrupt(struct hfi1_ctxtdata *rcd); - -int hfi1_create_rcvhdrq(struct hfi1_devdata *, struct hfi1_ctxtdata *); -int hfi1_setup_eagerbufs(struct hfi1_ctxtdata *); -int hfi1_create_ctxts(struct hfi1_devdata *dd); -struct hfi1_ctxtdata *hfi1_create_ctxtdata(struct hfi1_pportdata *, u32, int); -void hfi1_init_pportdata(struct pci_dev *, struct hfi1_pportdata *, - struct hfi1_devdata *, u8, u8); -void hfi1_free_ctxtdata(struct hfi1_devdata *, struct hfi1_ctxtdata *); - -int handle_receive_interrupt(struct hfi1_ctxtdata *, int); -int handle_receive_interrupt_nodma_rtail(struct hfi1_ctxtdata *, int); -int handle_receive_interrupt_dma_rtail(struct hfi1_ctxtdata *, int); -void set_all_slowpath(struct hfi1_devdata *dd); - -/* receive packet handler dispositions */ -#define RCV_PKT_OK 0x0 /* keep going */ -#define RCV_PKT_LIMIT 0x1 /* stop, hit limit, start thread */ -#define RCV_PKT_DONE 0x2 /* stop, no more packets detected */ - -/* calculate the current RHF address */ -static inline __le32 *get_rhf_addr(struct hfi1_ctxtdata *rcd) -{ - return (__le32 *)rcd->rcvhdrq + rcd->head + rcd->dd->rhf_offset; -} - -int hfi1_reset_device(int); - -/* return the driver's idea of the logical OPA port state */ -static inline u32 driver_lstate(struct hfi1_pportdata *ppd) -{ - return ppd->lstate; /* use the cached value */ -} - -void receive_interrupt_work(struct work_struct *work); - -/* extract service channel from header and rhf */ -static inline int hdr2sc(struct hfi1_message_header *hdr, u64 rhf) -{ - return ((be16_to_cpu(hdr->lrh[0]) >> 12) & 0xf) | - ((!!(rhf & RHF_DC_INFO_SMASK)) << 4); -} - -static inline u16 generate_jkey(kuid_t uid) -{ - return from_kuid(current_user_ns(), uid) & 0xffff; -} - -/* - * active_egress_rate - * - * returns the active egress rate in units of [10^6 bits/sec] - */ -static inline u32 active_egress_rate(struct hfi1_pportdata *ppd) -{ - u16 link_speed = ppd->link_speed_active; - u16 link_width = ppd->link_width_active; - u32 egress_rate; - - if (link_speed == OPA_LINK_SPEED_25G) - egress_rate = 25000; - else /* assume OPA_LINK_SPEED_12_5G */ - egress_rate = 12500; - - switch (link_width) { - case OPA_LINK_WIDTH_4X: - egress_rate *= 4; - break; - case OPA_LINK_WIDTH_3X: - egress_rate *= 3; - break; - case OPA_LINK_WIDTH_2X: - egress_rate *= 2; - break; - default: - /* assume IB_WIDTH_1X */ - break; - } - - return egress_rate; -} - -/* - * egress_cycles - * - * Returns the number of 'fabric clock cycles' to egress a packet - * of length 'len' bytes, at 'rate' Mbit/s. Since the fabric clock - * rate is (approximately) 805 MHz, the units of the returned value - * are (1/805 MHz). - */ -static inline u32 egress_cycles(u32 len, u32 rate) -{ - u32 cycles; - - /* - * cycles is: - * - * (length) [bits] / (rate) [bits/sec] - * --------------------------------------------------- - * fabric_clock_period == 1 /(805 * 10^6) [cycles/sec] - */ - - cycles = len * 8; /* bits */ - cycles *= 805; - cycles /= rate; - - return cycles; -} - -void set_link_ipg(struct hfi1_pportdata *ppd); -void process_becn(struct hfi1_pportdata *ppd, u8 sl, u16 rlid, u32 lqpn, - u32 rqpn, u8 svc_type); -void return_cnp(struct hfi1_ibport *ibp, struct rvt_qp *qp, u32 remote_qpn, - u32 pkey, u32 slid, u32 dlid, u8 sc5, - const struct ib_grh *old_grh); -#define PKEY_CHECK_INVALID -1 -int egress_pkey_check(struct hfi1_pportdata *ppd, __be16 *lrh, __be32 *bth, - u8 sc5, int8_t s_pkey_index); - -#define PACKET_EGRESS_TIMEOUT 350 -static inline void pause_for_credit_return(struct hfi1_devdata *dd) -{ - /* Pause at least 1us, to ensure chip returns all credits */ - u32 usec = cclock_to_ns(dd, PACKET_EGRESS_TIMEOUT) / 1000; - - udelay(usec ? usec : 1); -} - -/** - * sc_to_vlt() reverse lookup sc to vl - * @dd - devdata - * @sc5 - 5 bit sc - */ -static inline u8 sc_to_vlt(struct hfi1_devdata *dd, u8 sc5) -{ - unsigned seq; - u8 rval; - - if (sc5 >= OPA_MAX_SCS) - return (u8)(0xff); - - do { - seq = read_seqbegin(&dd->sc2vl_lock); - rval = *(((u8 *)dd->sc2vl) + sc5); - } while (read_seqretry(&dd->sc2vl_lock, seq)); - - return rval; -} - -#define PKEY_MEMBER_MASK 0x8000 -#define PKEY_LOW_15_MASK 0x7fff - -/* - * ingress_pkey_matches_entry - return 1 if the pkey matches ent (ent - * being an entry from the ingress partition key table), return 0 - * otherwise. Use the matching criteria for ingress partition keys - * specified in the OPAv1 spec., section 9.10.14. - */ -static inline int ingress_pkey_matches_entry(u16 pkey, u16 ent) -{ - u16 mkey = pkey & PKEY_LOW_15_MASK; - u16 ment = ent & PKEY_LOW_15_MASK; - - if (mkey == ment) { - /* - * If pkey[15] is clear (limited partition member), - * is bit 15 in the corresponding table element - * clear (limited member)? - */ - if (!(pkey & PKEY_MEMBER_MASK)) - return !!(ent & PKEY_MEMBER_MASK); - return 1; - } - return 0; -} - -/* - * ingress_pkey_table_search - search the entire pkey table for - * an entry which matches 'pkey'. return 0 if a match is found, - * and 1 otherwise. - */ -static int ingress_pkey_table_search(struct hfi1_pportdata *ppd, u16 pkey) -{ - int i; - - for (i = 0; i < MAX_PKEY_VALUES; i++) { - if (ingress_pkey_matches_entry(pkey, ppd->pkeys[i])) - return 0; - } - return 1; -} - -/* - * ingress_pkey_table_fail - record a failure of ingress pkey validation, - * i.e., increment port_rcv_constraint_errors for the port, and record - * the 'error info' for this failure. - */ -static void ingress_pkey_table_fail(struct hfi1_pportdata *ppd, u16 pkey, - u16 slid) -{ - struct hfi1_devdata *dd = ppd->dd; - - incr_cntr64(&ppd->port_rcv_constraint_errors); - if (!(dd->err_info_rcv_constraint.status & OPA_EI_STATUS_SMASK)) { - dd->err_info_rcv_constraint.status |= OPA_EI_STATUS_SMASK; - dd->err_info_rcv_constraint.slid = slid; - dd->err_info_rcv_constraint.pkey = pkey; - } -} - -/* - * ingress_pkey_check - Return 0 if the ingress pkey is valid, return 1 - * otherwise. Use the criteria in the OPAv1 spec, section 9.10.14. idx - * is a hint as to the best place in the partition key table to begin - * searching. This function should not be called on the data path because - * of performance reasons. On datapath pkey check is expected to be done - * by HW and rcv_pkey_check function should be called instead. - */ -static inline int ingress_pkey_check(struct hfi1_pportdata *ppd, u16 pkey, - u8 sc5, u8 idx, u16 slid) -{ - if (!(ppd->part_enforce & HFI1_PART_ENFORCE_IN)) - return 0; - - /* If SC15, pkey[0:14] must be 0x7fff */ - if ((sc5 == 0xf) && ((pkey & PKEY_LOW_15_MASK) != PKEY_LOW_15_MASK)) - goto bad; - - /* Is the pkey = 0x0, or 0x8000? */ - if ((pkey & PKEY_LOW_15_MASK) == 0) - goto bad; - - /* The most likely matching pkey has index 'idx' */ - if (ingress_pkey_matches_entry(pkey, ppd->pkeys[idx])) - return 0; - - /* no match - try the whole table */ - if (!ingress_pkey_table_search(ppd, pkey)) - return 0; - -bad: - ingress_pkey_table_fail(ppd, pkey, slid); - return 1; -} - -/* - * rcv_pkey_check - Return 0 if the ingress pkey is valid, return 1 - * otherwise. It only ensures pkey is vlid for QP0. This function - * should be called on the data path instead of ingress_pkey_check - * as on data path, pkey check is done by HW (except for QP0). - */ -static inline int rcv_pkey_check(struct hfi1_pportdata *ppd, u16 pkey, - u8 sc5, u16 slid) -{ - if (!(ppd->part_enforce & HFI1_PART_ENFORCE_IN)) - return 0; - - /* If SC15, pkey[0:14] must be 0x7fff */ - if ((sc5 == 0xf) && ((pkey & PKEY_LOW_15_MASK) != PKEY_LOW_15_MASK)) - goto bad; - - return 0; -bad: - ingress_pkey_table_fail(ppd, pkey, slid); - return 1; -} - -/* MTU handling */ - -/* MTU enumeration, 256-4k match IB */ -#define OPA_MTU_0 0 -#define OPA_MTU_256 1 -#define OPA_MTU_512 2 -#define OPA_MTU_1024 3 -#define OPA_MTU_2048 4 -#define OPA_MTU_4096 5 - -u32 lrh_max_header_bytes(struct hfi1_devdata *dd); -int mtu_to_enum(u32 mtu, int default_if_bad); -u16 enum_to_mtu(int); -static inline int valid_ib_mtu(unsigned int mtu) -{ - return mtu == 256 || mtu == 512 || - mtu == 1024 || mtu == 2048 || - mtu == 4096; -} - -static inline int valid_opa_max_mtu(unsigned int mtu) -{ - return mtu >= 2048 && - (valid_ib_mtu(mtu) || mtu == 8192 || mtu == 10240); -} - -int set_mtu(struct hfi1_pportdata *); - -int hfi1_set_lid(struct hfi1_pportdata *, u32, u8); -void hfi1_disable_after_error(struct hfi1_devdata *); -int hfi1_set_uevent_bits(struct hfi1_pportdata *, const int); -int hfi1_rcvbuf_validate(u32, u8, u16 *); - -int fm_get_table(struct hfi1_pportdata *, int, void *); -int fm_set_table(struct hfi1_pportdata *, int, void *); - -void set_up_vl15(struct hfi1_devdata *dd, u8 vau, u16 vl15buf); -void reset_link_credits(struct hfi1_devdata *dd); -void assign_remote_cm_au_table(struct hfi1_devdata *dd, u8 vcu); - -int snoop_recv_handler(struct hfi1_packet *packet); -int snoop_send_dma_handler(struct rvt_qp *qp, struct hfi1_pkt_state *ps, - u64 pbc); -int snoop_send_pio_handler(struct rvt_qp *qp, struct hfi1_pkt_state *ps, - u64 pbc); -void snoop_inline_pio_send(struct hfi1_devdata *dd, struct pio_buf *pbuf, - u64 pbc, const void *from, size_t count); -int set_buffer_control(struct hfi1_pportdata *ppd, struct buffer_control *bc); - -static inline struct hfi1_devdata *dd_from_ppd(struct hfi1_pportdata *ppd) -{ - return ppd->dd; -} - -static inline struct hfi1_devdata *dd_from_dev(struct hfi1_ibdev *dev) -{ - return container_of(dev, struct hfi1_devdata, verbs_dev); -} - -static inline struct hfi1_devdata *dd_from_ibdev(struct ib_device *ibdev) -{ - return dd_from_dev(to_idev(ibdev)); -} - -static inline struct hfi1_pportdata *ppd_from_ibp(struct hfi1_ibport *ibp) -{ - return container_of(ibp, struct hfi1_pportdata, ibport_data); -} - -static inline struct hfi1_ibdev *dev_from_rdi(struct rvt_dev_info *rdi) -{ - return container_of(rdi, struct hfi1_ibdev, rdi); -} - -static inline struct hfi1_ibport *to_iport(struct ib_device *ibdev, u8 port) -{ - struct hfi1_devdata *dd = dd_from_ibdev(ibdev); - unsigned pidx = port - 1; /* IB number port from 1, hdw from 0 */ - - WARN_ON(pidx >= dd->num_pports); - return &dd->pport[pidx].ibport_data; -} - -/* - * Return the indexed PKEY from the port PKEY table. - */ -static inline u16 hfi1_get_pkey(struct hfi1_ibport *ibp, unsigned index) -{ - struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); - u16 ret; - - if (index >= ARRAY_SIZE(ppd->pkeys)) - ret = 0; - else - ret = ppd->pkeys[index]; - - return ret; -} - -/* - * Readers of cc_state must call get_cc_state() under rcu_read_lock(). - * Writers of cc_state must call get_cc_state() under cc_state_lock. - */ -static inline struct cc_state *get_cc_state(struct hfi1_pportdata *ppd) -{ - return rcu_dereference(ppd->cc_state); -} - -/* - * values for dd->flags (_device_ related flags) - */ -#define HFI1_INITTED 0x1 /* chip and driver up and initted */ -#define HFI1_PRESENT 0x2 /* chip accesses can be done */ -#define HFI1_FROZEN 0x4 /* chip in SPC freeze */ -#define HFI1_HAS_SDMA_TIMEOUT 0x8 -#define HFI1_HAS_SEND_DMA 0x10 /* Supports Send DMA */ -#define HFI1_FORCED_FREEZE 0x80 /* driver forced freeze mode */ - -/* IB dword length mask in PBC (lower 11 bits); same for all chips */ -#define HFI1_PBC_LENGTH_MASK ((1 << 11) - 1) - -/* ctxt_flag bit offsets */ - /* context has been setup */ -#define HFI1_CTXT_SETUP_DONE 1 - /* waiting for a packet to arrive */ -#define HFI1_CTXT_WAITING_RCV 2 - /* master has not finished initializing */ -#define HFI1_CTXT_MASTER_UNINIT 4 - /* waiting for an urgent packet to arrive */ -#define HFI1_CTXT_WAITING_URG 5 - -/* free up any allocated data at closes */ -struct hfi1_devdata *hfi1_init_dd(struct pci_dev *, - const struct pci_device_id *); -void hfi1_free_devdata(struct hfi1_devdata *); -void cc_state_reclaim(struct rcu_head *rcu); -struct hfi1_devdata *hfi1_alloc_devdata(struct pci_dev *pdev, size_t extra); - -/* LED beaconing functions */ -void hfi1_start_led_override(struct hfi1_pportdata *ppd, unsigned int timeon, - unsigned int timeoff); -void shutdown_led_override(struct hfi1_pportdata *ppd); - -#define HFI1_CREDIT_RETURN_RATE (100) - -/* - * The number of words for the KDETH protocol field. If this is - * larger then the actual field used, then part of the payload - * will be in the header. - * - * Optimally, we want this sized so that a typical case will - * use full cache lines. The typical local KDETH header would - * be: - * - * Bytes Field - * 8 LRH - * 12 BHT - * ?? KDETH - * 8 RHF - * --- - * 28 + KDETH - * - * For a 64-byte cache line, KDETH would need to be 36 bytes or 9 DWORDS - */ -#define DEFAULT_RCVHDRSIZE 9 - -/* - * Maximal header byte count: - * - * Bytes Field - * 8 LRH - * 40 GRH (optional) - * 12 BTH - * ?? KDETH - * 8 RHF - * --- - * 68 + KDETH - * - * We also want to maintain a cache line alignment to assist DMA'ing - * of the header bytes. Round up to a good size. - */ -#define DEFAULT_RCVHDR_ENTSIZE 32 - -bool hfi1_can_pin_pages(struct hfi1_devdata *, u32, u32); -int hfi1_acquire_user_pages(unsigned long, size_t, bool, struct page **); -void hfi1_release_user_pages(struct mm_struct *, struct page **, size_t, bool); - -static inline void clear_rcvhdrtail(const struct hfi1_ctxtdata *rcd) -{ - *((u64 *)rcd->rcvhdrtail_kvaddr) = 0ULL; -} - -static inline u32 get_rcvhdrtail(const struct hfi1_ctxtdata *rcd) -{ - /* - * volatile because it's a DMA target from the chip, routine is - * inlined, and don't want register caching or reordering. - */ - return (u32)le64_to_cpu(*rcd->rcvhdrtail_kvaddr); -} - -/* - * sysfs interface. - */ - -extern const char ib_hfi1_version[]; - -int hfi1_device_create(struct hfi1_devdata *); -void hfi1_device_remove(struct hfi1_devdata *); - -int hfi1_create_port_files(struct ib_device *ibdev, u8 port_num, - struct kobject *kobj); -int hfi1_verbs_register_sysfs(struct hfi1_devdata *); -void hfi1_verbs_unregister_sysfs(struct hfi1_devdata *); -/* Hook for sysfs read of QSFP */ -int qsfp_dump(struct hfi1_pportdata *ppd, char *buf, int len); - -int hfi1_pcie_init(struct pci_dev *, const struct pci_device_id *); -void hfi1_pcie_cleanup(struct pci_dev *); -int hfi1_pcie_ddinit(struct hfi1_devdata *, struct pci_dev *, - const struct pci_device_id *); -void hfi1_pcie_ddcleanup(struct hfi1_devdata *); -void hfi1_pcie_flr(struct hfi1_devdata *); -int pcie_speeds(struct hfi1_devdata *); -void request_msix(struct hfi1_devdata *, u32 *, struct hfi1_msix_entry *); -void hfi1_enable_intx(struct pci_dev *); -void restore_pci_variables(struct hfi1_devdata *dd); -int do_pcie_gen3_transition(struct hfi1_devdata *dd); -int parse_platform_config(struct hfi1_devdata *dd); -int get_platform_config_field(struct hfi1_devdata *dd, - enum platform_config_table_type_encoding - table_type, int table_index, int field_index, - u32 *data, u32 len); - -const char *get_unit_name(int unit); -const char *get_card_name(struct rvt_dev_info *rdi); -struct pci_dev *get_pci_dev(struct rvt_dev_info *rdi); - -/* - * Flush write combining store buffers (if present) and perform a write - * barrier. - */ -static inline void flush_wc(void) -{ - asm volatile("sfence" : : : "memory"); -} - -void handle_eflags(struct hfi1_packet *packet); -int process_receive_ib(struct hfi1_packet *packet); -int process_receive_bypass(struct hfi1_packet *packet); -int process_receive_error(struct hfi1_packet *packet); -int kdeth_process_expected(struct hfi1_packet *packet); -int kdeth_process_eager(struct hfi1_packet *packet); -int process_receive_invalid(struct hfi1_packet *packet); - -extern rhf_rcv_function_ptr snoop_rhf_rcv_functions[8]; - -void update_sge(struct rvt_sge_state *ss, u32 length); - -/* global module parameter variables */ -extern unsigned int hfi1_max_mtu; -extern unsigned int hfi1_cu; -extern unsigned int user_credit_return_threshold; -extern int num_user_contexts; -extern unsigned n_krcvqs; -extern uint krcvqs[]; -extern int krcvqsset; -extern uint kdeth_qp; -extern uint loopback; -extern uint quick_linkup; -extern uint rcv_intr_timeout; -extern uint rcv_intr_count; -extern uint rcv_intr_dynamic; -extern ushort link_crc_mask; - -extern struct mutex hfi1_mutex; - -/* Number of seconds before our card status check... */ -#define STATUS_TIMEOUT 60 - -#define DRIVER_NAME "hfi1" -#define HFI1_USER_MINOR_BASE 0 -#define HFI1_TRACE_MINOR 127 -#define HFI1_DIAGPKT_MINOR 128 -#define HFI1_DIAG_MINOR_BASE 129 -#define HFI1_SNOOP_CAPTURE_BASE 200 -#define HFI1_NMINORS 255 - -#define PCI_VENDOR_ID_INTEL 0x8086 -#define PCI_DEVICE_ID_INTEL0 0x24f0 -#define PCI_DEVICE_ID_INTEL1 0x24f1 - -#define HFI1_PKT_USER_SC_INTEGRITY \ - (SEND_CTXT_CHECK_ENABLE_DISALLOW_NON_KDETH_PACKETS_SMASK \ - | SEND_CTXT_CHECK_ENABLE_DISALLOW_KDETH_PACKETS_SMASK \ - | SEND_CTXT_CHECK_ENABLE_DISALLOW_BYPASS_SMASK \ - | SEND_CTXT_CHECK_ENABLE_DISALLOW_GRH_SMASK) - -#define HFI1_PKT_KERNEL_SC_INTEGRITY \ - (SEND_CTXT_CHECK_ENABLE_DISALLOW_KDETH_PACKETS_SMASK) - -static inline u64 hfi1_pkt_default_send_ctxt_mask(struct hfi1_devdata *dd, - u16 ctxt_type) -{ - u64 base_sc_integrity = - SEND_CTXT_CHECK_ENABLE_DISALLOW_BYPASS_BAD_PKT_LEN_SMASK - | SEND_CTXT_CHECK_ENABLE_DISALLOW_PBC_STATIC_RATE_CONTROL_SMASK - | SEND_CTXT_CHECK_ENABLE_DISALLOW_TOO_LONG_BYPASS_PACKETS_SMASK - | SEND_CTXT_CHECK_ENABLE_DISALLOW_TOO_LONG_IB_PACKETS_SMASK - | SEND_CTXT_CHECK_ENABLE_DISALLOW_BAD_PKT_LEN_SMASK - | SEND_CTXT_CHECK_ENABLE_DISALLOW_PBC_TEST_SMASK - | SEND_CTXT_CHECK_ENABLE_DISALLOW_TOO_SMALL_BYPASS_PACKETS_SMASK - | SEND_CTXT_CHECK_ENABLE_DISALLOW_TOO_SMALL_IB_PACKETS_SMASK - | SEND_CTXT_CHECK_ENABLE_DISALLOW_RAW_IPV6_SMASK - | SEND_CTXT_CHECK_ENABLE_DISALLOW_RAW_SMASK - | SEND_CTXT_CHECK_ENABLE_CHECK_BYPASS_VL_MAPPING_SMASK - | SEND_CTXT_CHECK_ENABLE_CHECK_VL_MAPPING_SMASK - | SEND_CTXT_CHECK_ENABLE_CHECK_OPCODE_SMASK - | SEND_CTXT_CHECK_ENABLE_CHECK_SLID_SMASK - | SEND_CTXT_CHECK_ENABLE_CHECK_JOB_KEY_SMASK - | SEND_CTXT_CHECK_ENABLE_CHECK_VL_SMASK - | SEND_CTXT_CHECK_ENABLE_CHECK_ENABLE_SMASK; - - if (ctxt_type == SC_USER) - base_sc_integrity |= HFI1_PKT_USER_SC_INTEGRITY; - else - base_sc_integrity |= HFI1_PKT_KERNEL_SC_INTEGRITY; - - if (is_ax(dd)) - /* turn off send-side job key checks - A0 */ - return base_sc_integrity & - ~SEND_CTXT_CHECK_ENABLE_CHECK_JOB_KEY_SMASK; - return base_sc_integrity; -} - -static inline u64 hfi1_pkt_base_sdma_integrity(struct hfi1_devdata *dd) -{ - u64 base_sdma_integrity = - SEND_DMA_CHECK_ENABLE_DISALLOW_BYPASS_BAD_PKT_LEN_SMASK - | SEND_DMA_CHECK_ENABLE_DISALLOW_PBC_STATIC_RATE_CONTROL_SMASK - | SEND_DMA_CHECK_ENABLE_DISALLOW_TOO_LONG_BYPASS_PACKETS_SMASK - | SEND_DMA_CHECK_ENABLE_DISALLOW_TOO_LONG_IB_PACKETS_SMASK - | SEND_DMA_CHECK_ENABLE_DISALLOW_BAD_PKT_LEN_SMASK - | SEND_DMA_CHECK_ENABLE_DISALLOW_TOO_SMALL_BYPASS_PACKETS_SMASK - | SEND_DMA_CHECK_ENABLE_DISALLOW_TOO_SMALL_IB_PACKETS_SMASK - | SEND_DMA_CHECK_ENABLE_DISALLOW_RAW_IPV6_SMASK - | SEND_DMA_CHECK_ENABLE_DISALLOW_RAW_SMASK - | SEND_DMA_CHECK_ENABLE_CHECK_BYPASS_VL_MAPPING_SMASK - | SEND_DMA_CHECK_ENABLE_CHECK_VL_MAPPING_SMASK - | SEND_DMA_CHECK_ENABLE_CHECK_OPCODE_SMASK - | SEND_DMA_CHECK_ENABLE_CHECK_SLID_SMASK - | SEND_DMA_CHECK_ENABLE_CHECK_JOB_KEY_SMASK - | SEND_DMA_CHECK_ENABLE_CHECK_VL_SMASK - | SEND_DMA_CHECK_ENABLE_CHECK_ENABLE_SMASK; - - if (is_ax(dd)) - /* turn off send-side job key checks - A0 */ - return base_sdma_integrity & - ~SEND_DMA_CHECK_ENABLE_CHECK_JOB_KEY_SMASK; - return base_sdma_integrity; -} - -/* - * hfi1_early_err is used (only!) to print early errors before devdata is - * allocated, or when dd->pcidev may not be valid, and at the tail end of - * cleanup when devdata may have been freed, etc. hfi1_dev_porterr is - * the same as dd_dev_err, but is used when the message really needs - * the IB port# to be definitive as to what's happening.. - */ -#define hfi1_early_err(dev, fmt, ...) \ - dev_err(dev, fmt, ##__VA_ARGS__) - -#define hfi1_early_info(dev, fmt, ...) \ - dev_info(dev, fmt, ##__VA_ARGS__) - -#define dd_dev_emerg(dd, fmt, ...) \ - dev_emerg(&(dd)->pcidev->dev, "%s: " fmt, \ - get_unit_name((dd)->unit), ##__VA_ARGS__) -#define dd_dev_err(dd, fmt, ...) \ - dev_err(&(dd)->pcidev->dev, "%s: " fmt, \ - get_unit_name((dd)->unit), ##__VA_ARGS__) -#define dd_dev_warn(dd, fmt, ...) \ - dev_warn(&(dd)->pcidev->dev, "%s: " fmt, \ - get_unit_name((dd)->unit), ##__VA_ARGS__) - -#define dd_dev_warn_ratelimited(dd, fmt, ...) \ - dev_warn_ratelimited(&(dd)->pcidev->dev, "%s: " fmt, \ - get_unit_name((dd)->unit), ##__VA_ARGS__) - -#define dd_dev_info(dd, fmt, ...) \ - dev_info(&(dd)->pcidev->dev, "%s: " fmt, \ - get_unit_name((dd)->unit), ##__VA_ARGS__) - -#define dd_dev_dbg(dd, fmt, ...) \ - dev_dbg(&(dd)->pcidev->dev, "%s: " fmt, \ - get_unit_name((dd)->unit), ##__VA_ARGS__) - -#define hfi1_dev_porterr(dd, port, fmt, ...) \ - dev_err(&(dd)->pcidev->dev, "%s: port %u: " fmt, \ - get_unit_name((dd)->unit), (port), ##__VA_ARGS__) - -/* - * this is used for formatting hw error messages... - */ -struct hfi1_hwerror_msgs { - u64 mask; - const char *msg; - size_t sz; -}; - -/* in intr.c... */ -void hfi1_format_hwerrors(u64 hwerrs, - const struct hfi1_hwerror_msgs *hwerrmsgs, - size_t nhwerrmsgs, char *msg, size_t lmsg); - -#define USER_OPCODE_CHECK_VAL 0xC0 -#define USER_OPCODE_CHECK_MASK 0xC0 -#define OPCODE_CHECK_VAL_DISABLED 0x0 -#define OPCODE_CHECK_MASK_DISABLED 0x0 - -static inline void hfi1_reset_cpu_counters(struct hfi1_devdata *dd) -{ - struct hfi1_pportdata *ppd; - int i; - - dd->z_int_counter = get_all_cpu_total(dd->int_counter); - dd->z_rcv_limit = get_all_cpu_total(dd->rcv_limit); - dd->z_send_schedule = get_all_cpu_total(dd->send_schedule); - - ppd = (struct hfi1_pportdata *)(dd + 1); - for (i = 0; i < dd->num_pports; i++, ppd++) { - ppd->ibport_data.rvp.z_rc_acks = - get_all_cpu_total(ppd->ibport_data.rvp.rc_acks); - ppd->ibport_data.rvp.z_rc_qacks = - get_all_cpu_total(ppd->ibport_data.rvp.rc_qacks); - } -} - -/* Control LED state */ -static inline void setextled(struct hfi1_devdata *dd, u32 on) -{ - if (on) - write_csr(dd, DCC_CFG_LED_CNTRL, 0x1F); - else - write_csr(dd, DCC_CFG_LED_CNTRL, 0x10); -} - -/* return the i2c resource given the target */ -static inline u32 i2c_target(u32 target) -{ - return target ? CR_I2C2 : CR_I2C1; -} - -/* return the i2c chain chip resource that this HFI uses for QSFP */ -static inline u32 qsfp_resource(struct hfi1_devdata *dd) -{ - return i2c_target(dd->hfi1_id); -} - -int hfi1_tempsense_rd(struct hfi1_devdata *dd, struct hfi1_temp *temp); - -#endif /* _HFI1_KERNEL_H */ |