| #ifndef _HFI1_KERNEL_H |
| #define _HFI1_KERNEL_H |
| /* |
| * |
| * 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 |
| * |
| * Copyright(c) 2015 Intel Corporation. |
| * |
| * 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 |
| * |
| * Copyright(c) 2015 Intel Corporation. |
| * |
| * 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 "chip_registers.h" |
| #include "common.h" |
| #include "verbs.h" |
| #include "pio.h" |
| #include "chip.h" |
| #include "mad.h" |
| #include "qsfp.h" |
| #include "platform_config.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) |
| |
| /* |
| * 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 ps_state keeps state associated with RX queue "prescanning" |
| * (prescanning for FECNs, and BECNs), if prescanning is in use. |
| */ |
| struct ps_state { |
| u32 ps_head; |
| int initialized; |
| }; |
| |
| 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 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; |
| /* cursor into the exp group sets */ |
| atomic_t tidcursor; |
| /* number of exp TID groups assigned to the ctxt */ |
| u16 numtidgroups; |
| /* size of exp TID group fields in tidusemap */ |
| u16 tidmapcnt; |
| /* exp TID group usage bitfield array */ |
| unsigned long *tidusemap; |
| /* pinned pages for exp sends, allocated at open */ |
| struct page **tid_pg_list; |
| /* dma handles for exp tid pages */ |
| dma_addr_t *physshadow; |
| /* lock protecting all Expected TID data */ |
| spinlock_t 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 */ |
| u16 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; |
| spinlock_t sdma_qlock; |
| |
| #ifdef CONFIG_PRESCAN_RXQ |
| struct ps_state ps_state; |
| #endif /* CONFIG_PRESCAN_RXQ */ |
| |
| /* |
| * 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 hfi1_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; |
| 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 hfi1_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 (1 << __HLS_UP_INIT_BP) |
| #define HLS_UP_ARMED (1 << __HLS_UP_ARMED_BP) |
| #define HLS_UP_ACTIVE (1 << __HLS_UP_ACTIVE_BP) |
| #define HLS_DN_DOWNDEF (1 << __HLS_DN_DOWNDEF_BP) /* link down default */ |
| #define HLS_DN_POLL (1 << __HLS_DN_POLL_BP) |
| #define HLS_DN_DISABLE (1 << __HLS_DN_DISABLE_BP) |
| #define HLS_DN_OFFLINE (1 << __HLS_DN_OFFLINE_BP) |
| #define HLS_VERIFY_CAP (1 << __HLS_VERIFY_CAP_BP) |
| #define HLS_GOING_UP (1 << __HLS_GOING_UP_BP) |
| #define HLS_GOING_OFFLINE (1 << __HLS_GOING_OFFLINE_BP) |
| #define HLS_LINK_COOLDOWN (1 << __HLS_LINK_COOLDOWN_BP) |
| |
| #define HLS_UP (HLS_UP_INIT | HLS_UP_ARMED | HLS_UP_ACTIVE) |
| |
| /* use this MTU size if none other is given */ |
| #define HFI1_DEFAULT_ACTIVE_MTU 8192 |
| /* use this MTU size as the default maximum */ |
| #define HFI1_DEFAULT_MAX_MTU 8192 |
| /* 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_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 { |
| struct msix_entry msix; |
| void *arg; |
| char name[MAX_NAME_SIZE]; |
| cpumask_var_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 { |
| 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; |
| |
| /* QSFP support */ |
| 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; |
| /* 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 */ |
| |
| /* placeholders for IB MAD packet settings */ |
| u8 overrun_threshold; |
| u8 phy_error_threshold; |
| |
| /* used to override LED behavior */ |
| u8 led_override; /* Substituted for normal value, if non-zero */ |
| u16 led_override_timeoff; /* delta to next timer event */ |
| u8 led_override_vals[2]; /* Alternates per blink-frame */ |
| u8 led_override_phase; /* Just counts, 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; |
| /* we synthesize port_xmit_discards from several egress errors */ |
| u64 port_xmit_discards; |
| 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; |
| /* 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; |
| }; |
| |
| 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 */ |
| }; |
| |
| /* 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 */ |
| |
| 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]; |
| /* 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; |
| |
| |
| /* 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; |
| /* percpu int_counter */ |
| u64 __percpu *int_counter; |
| u64 __percpu *rcv_limit; |
| |
| /* 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; |
| /* 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_cache pcfg_cache; |
| /* control high-level access to qsfp */ |
| struct mutex qsfp_i2c_mutex; |
| |
| 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; |
| /* per device cq worker */ |
| struct kthread_worker *worker; |
| |
| /* 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; |
| |
| /* 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 |
| */ |
| int (*process_pio_send)(struct hfi1_qp *qp, struct ahg_ib_header *ibhdr, |
| u32 hdrwords, struct hfi1_sge_state *ss, |
| u32 len, u32 plen, u32 dwords, u64 pbc); |
| int (*process_dma_send)(struct hfi1_qp *qp, struct ahg_ib_header *ibhdr, |
| u32 hdrwords, struct hfi1_sge_state *ss, |
| u32 len, u32 plen, u32 dwords, u64 pbc); |
| 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; |
| |
| int assigned_node_id; |
| wait_queue_head_t event_queue; |
| |
| /* Save the enabled LCB error bits */ |
| u64 lcb_err_en; |
| u8 dc_shutdown; |
| }; |
| |
| /* 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 |
| |
| /* 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; |
| }; |
| |
| 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); |
| 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); |
| |
| /* 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 */ |
| } |
| |
| 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 hfi1_qp *qp, u32 remote_qpn, |
| u32 pkey, u32 slid, u32 dlid, u8 sc5, |
| const struct ib_grh *old_grh); |
| |
| #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 hfi1_qp *qp, struct ahg_ib_header *ibhdr, |
| u32 hdrwords, struct hfi1_sge_state *ss, u32 len, |
| u32 plen, u32 dwords, u64 pbc); |
| int snoop_send_pio_handler(struct hfi1_qp *qp, struct ahg_ib_header *ibhdr, |
| u32 hdrwords, struct hfi1_sge_state *ss, u32 len, |
| u32 plen, u32 dwords, u64 pbc); |
| void snoop_inline_pio_send(struct hfi1_devdata *dd, struct pio_buf *pbuf, |
| u64 pbc, const void *from, size_t count); |
| |
| /* for use in system calls, where we want to know device type, etc. */ |
| #define ctxt_fp(fp) \ |
| (((struct hfi1_filedata *)(fp)->private_data)->uctxt) |
| #define subctxt_fp(fp) \ |
| (((struct hfi1_filedata *)(fp)->private_data)->subctxt) |
| #define tidcursor_fp(fp) \ |
| (((struct hfi1_filedata *)(fp)->private_data)->tidcursor) |
| #define user_sdma_pkt_fp(fp) \ |
| (((struct hfi1_filedata *)(fp)->private_data)->pq) |
| #define user_sdma_comp_fp(fp) \ |
| (((struct hfi1_filedata *)(fp)->private_data)->cq) |
| |
| 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_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 */ |
| #define HFI1_DO_INIT_ASIC 0x100 /* This device will init the ASIC */ |
| |
| /* 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); |
| |
| /* |
| * Set LED override, only the two LSBs have "public" meaning, but |
| * any non-zero value substitutes them for the Link and LinkTrain |
| * LED states. |
| */ |
| #define HFI1_LED_PHYS 1 /* Physical (linktraining) GREEN LED */ |
| #define HFI1_LED_LOG 2 /* Logical (link) YELLOW LED */ |
| void hfi1_set_led_override(struct hfi1_pportdata *ppd, unsigned int val); |
| |
| #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 |
| |
| int hfi1_get_user_pages(unsigned long, size_t, struct page **); |
| void hfi1_release_user_pages(struct page **, size_t); |
| |
| 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 hfi1_nomsix(struct hfi1_devdata *); |
| 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); |
| |
| dma_addr_t hfi1_map_page(struct pci_dev *, struct page *, unsigned long, |
| size_t, int); |
| const char *get_unit_name(int unit); |
| |
| /* |
| * 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 hfi1_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 uint num_rcv_contexts; |
| extern unsigned n_krcvqs; |
| extern u8 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_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_a0(dd)) |
| /* turn off send-side job key checks - A0 erratum */ |
| 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_a0(dd)) |
| /* turn off send-side job key checks - A0 erratum */ |
| 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 hfi1_dev_porterr(dd, port, fmt, ...) \ |
| dev_err(&(dd)->pcidev->dev, "%s: IB%u:%u " fmt, \ |
| get_unit_name((dd)->unit), (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); |
| |
| ppd = (struct hfi1_pportdata *)(dd + 1); |
| for (i = 0; i < dd->num_pports; i++, ppd++) { |
| ppd->ibport_data.z_rc_acks = |
| get_all_cpu_total(ppd->ibport_data.rc_acks); |
| ppd->ibport_data.z_rc_qacks = |
| get_all_cpu_total(ppd->ibport_data.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); |
| } |
| |
| int hfi1_tempsense_rd(struct hfi1_devdata *dd, struct hfi1_temp *temp); |
| |
| #endif /* _HFI1_KERNEL_H */ |