Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 1 | #ifndef _IPATH_KERNEL_H |
| 2 | #define _IPATH_KERNEL_H |
| 3 | /* |
John Gregor | 87427da | 2007-06-11 10:21:14 -0700 | [diff] [blame] | 4 | * Copyright (c) 2006, 2007 QLogic Corporation. All rights reserved. |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 5 | * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. |
| 6 | * |
| 7 | * This software is available to you under a choice of one of two |
| 8 | * licenses. You may choose to be licensed under the terms of the GNU |
| 9 | * General Public License (GPL) Version 2, available from the file |
| 10 | * COPYING in the main directory of this source tree, or the |
| 11 | * OpenIB.org BSD license below: |
| 12 | * |
| 13 | * Redistribution and use in source and binary forms, with or |
| 14 | * without modification, are permitted provided that the following |
| 15 | * conditions are met: |
| 16 | * |
| 17 | * - Redistributions of source code must retain the above |
| 18 | * copyright notice, this list of conditions and the following |
| 19 | * disclaimer. |
| 20 | * |
| 21 | * - Redistributions in binary form must reproduce the above |
| 22 | * copyright notice, this list of conditions and the following |
| 23 | * disclaimer in the documentation and/or other materials |
| 24 | * provided with the distribution. |
| 25 | * |
| 26 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 27 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 28 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 29 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 30 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 31 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 32 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 33 | * SOFTWARE. |
| 34 | */ |
| 35 | |
| 36 | /* |
| 37 | * This header file is the base header file for infinipath kernel code |
| 38 | * ipath_user.h serves a similar purpose for user code. |
| 39 | */ |
| 40 | |
| 41 | #include <linux/interrupt.h> |
Bryan O'Sullivan | 1fd3b40 | 2006-09-28 09:00:13 -0700 | [diff] [blame] | 42 | #include <linux/pci.h> |
| 43 | #include <linux/dma-mapping.h> |
Matthias Kaehlcke | 2c45688 | 2007-11-15 15:23:25 -0800 | [diff] [blame] | 44 | #include <linux/mutex.h> |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 45 | #include <asm/io.h> |
Ralph Campbell | 49739b3 | 2007-09-19 16:47:31 -0700 | [diff] [blame] | 46 | #include <rdma/ib_verbs.h> |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 47 | |
| 48 | #include "ipath_common.h" |
| 49 | #include "ipath_debug.h" |
| 50 | #include "ipath_registers.h" |
| 51 | |
| 52 | /* only s/w major version of InfiniPath we can handle */ |
| 53 | #define IPATH_CHIP_VERS_MAJ 2U |
| 54 | |
| 55 | /* don't care about this except printing */ |
| 56 | #define IPATH_CHIP_VERS_MIN 0U |
| 57 | |
| 58 | /* temporary, maybe always */ |
| 59 | extern struct infinipath_stats ipath_stats; |
| 60 | |
| 61 | #define IPATH_CHIP_SWVERSION IPATH_CHIP_VERS_MAJ |
Michael Albaugh | aecd3b5 | 2007-05-17 07:26:28 -0700 | [diff] [blame] | 62 | /* |
| 63 | * First-cut critierion for "device is active" is |
| 64 | * two thousand dwords combined Tx, Rx traffic per |
| 65 | * 5-second interval. SMA packets are 64 dwords, |
| 66 | * and occur "a few per second", presumably each way. |
| 67 | */ |
| 68 | #define IPATH_TRAFFIC_ACTIVE_THRESHOLD (2000) |
| 69 | /* |
| 70 | * Struct used to indicate which errors are logged in each of the |
| 71 | * error-counters that are logged to EEPROM. A counter is incremented |
| 72 | * _once_ (saturating at 255) for each event with any bits set in |
| 73 | * the error or hwerror register masks below. |
| 74 | */ |
| 75 | #define IPATH_EEP_LOG_CNT (4) |
| 76 | struct ipath_eep_log_mask { |
| 77 | u64 errs_to_log; |
| 78 | u64 hwerrs_to_log; |
| 79 | }; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 80 | |
| 81 | struct ipath_portdata { |
| 82 | void **port_rcvegrbuf; |
| 83 | dma_addr_t *port_rcvegrbuf_phys; |
| 84 | /* rcvhdrq base, needs mmap before useful */ |
| 85 | void *port_rcvhdrq; |
| 86 | /* kernel virtual address where hdrqtail is updated */ |
Bryan O'Sullivan | 1fd3b40 | 2006-09-28 09:00:13 -0700 | [diff] [blame] | 87 | void *port_rcvhdrtail_kvaddr; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 88 | /* |
| 89 | * temp buffer for expected send setup, allocated at open, instead |
| 90 | * of each setup call |
| 91 | */ |
| 92 | void *port_tid_pg_list; |
| 93 | /* when waiting for rcv or pioavail */ |
| 94 | wait_queue_head_t port_wait; |
| 95 | /* |
| 96 | * rcvegr bufs base, physical, must fit |
| 97 | * in 44 bits so 32 bit programs mmap64 44 bit works) |
| 98 | */ |
| 99 | dma_addr_t port_rcvegr_phys; |
| 100 | /* mmap of hdrq, must fit in 44 bits */ |
| 101 | dma_addr_t port_rcvhdrq_phys; |
Bryan O'Sullivan | f37bda9 | 2006-07-01 04:36:03 -0700 | [diff] [blame] | 102 | dma_addr_t port_rcvhdrqtailaddr_phys; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 103 | /* |
Bryan O'Sullivan | 9929b0f | 2006-09-28 08:59:59 -0700 | [diff] [blame] | 104 | * number of opens (including slave subports) on this instance |
| 105 | * (ignoring forks, dup, etc. for now) |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 106 | */ |
| 107 | int port_cnt; |
| 108 | /* |
| 109 | * how much space to leave at start of eager TID entries for |
| 110 | * protocol use, on each TID |
| 111 | */ |
| 112 | /* instead of calculating it */ |
| 113 | unsigned port_port; |
Bryan O'Sullivan | 9929b0f | 2006-09-28 08:59:59 -0700 | [diff] [blame] | 114 | /* non-zero if port is being shared. */ |
| 115 | u16 port_subport_cnt; |
| 116 | /* non-zero if port is being shared. */ |
| 117 | u16 port_subport_id; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 118 | /* chip offset of PIO buffers for this port */ |
| 119 | u32 port_piobufs; |
| 120 | /* how many alloc_pages() chunks in port_rcvegrbuf_pages */ |
| 121 | u32 port_rcvegrbuf_chunks; |
| 122 | /* how many egrbufs per chunk */ |
| 123 | u32 port_rcvegrbufs_perchunk; |
| 124 | /* order for port_rcvegrbuf_pages */ |
| 125 | size_t port_rcvegrbuf_size; |
| 126 | /* rcvhdrq size (for freeing) */ |
| 127 | size_t port_rcvhdrq_size; |
| 128 | /* next expected TID to check when looking for free */ |
| 129 | u32 port_tidcursor; |
| 130 | /* next expected TID to check */ |
| 131 | unsigned long port_flag; |
Robert Walsh | f2d0423 | 2007-06-18 14:24:49 -0700 | [diff] [blame] | 132 | /* what happened */ |
| 133 | unsigned long int_flag; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 134 | /* WAIT_RCV that timed out, no interrupt */ |
| 135 | u32 port_rcvwait_to; |
| 136 | /* WAIT_PIO that timed out, no interrupt */ |
| 137 | u32 port_piowait_to; |
| 138 | /* WAIT_RCV already happened, no wait */ |
| 139 | u32 port_rcvnowait; |
| 140 | /* WAIT_PIO already happened, no wait */ |
| 141 | u32 port_pionowait; |
| 142 | /* total number of rcvhdrqfull errors */ |
| 143 | u32 port_hdrqfull; |
Dave Olson | 755807a | 2007-12-06 00:28:02 -0800 | [diff] [blame] | 144 | /* |
| 145 | * Used to suppress multiple instances of same |
| 146 | * port staying stuck at same point. |
| 147 | */ |
| 148 | u32 port_lastrcvhdrqtail; |
Arthur Jones | 70c51da | 2007-09-14 12:22:49 -0700 | [diff] [blame] | 149 | /* saved total number of rcvhdrqfull errors for poll edge trigger */ |
| 150 | u32 port_hdrqfull_poll; |
| 151 | /* total number of polled urgent packets */ |
| 152 | u32 port_urgent; |
| 153 | /* saved total number of polled urgent packets for poll edge trigger */ |
| 154 | u32 port_urgent_poll; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 155 | /* pid of process using this port */ |
| 156 | pid_t port_pid; |
Dave Olson | 755807a | 2007-12-06 00:28:02 -0800 | [diff] [blame] | 157 | pid_t port_subpid[INFINIPATH_MAX_SUBPORT]; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 158 | /* same size as task_struct .comm[] */ |
| 159 | char port_comm[16]; |
| 160 | /* pkeys set by this use of this port */ |
| 161 | u16 port_pkeys[4]; |
| 162 | /* so file ops can get at unit */ |
| 163 | struct ipath_devdata *port_dd; |
Bryan O'Sullivan | 9929b0f | 2006-09-28 08:59:59 -0700 | [diff] [blame] | 164 | /* A page of memory for rcvhdrhead, rcvegrhead, rcvegrtail * N */ |
| 165 | void *subport_uregbase; |
| 166 | /* An array of pages for the eager receive buffers * N */ |
| 167 | void *subport_rcvegrbuf; |
| 168 | /* An array of pages for the eager header queue entries * N */ |
| 169 | void *subport_rcvhdr_base; |
| 170 | /* The version of the library which opened this port */ |
| 171 | u32 userversion; |
| 172 | /* Bitmask of active slaves */ |
| 173 | u32 active_slaves; |
Robert Walsh | f2d0423 | 2007-06-18 14:24:49 -0700 | [diff] [blame] | 174 | /* Type of packets or conditions we want to poll for */ |
| 175 | u16 poll_type; |
Ralph Campbell | c59a80a | 2007-12-20 02:43:23 -0800 | [diff] [blame] | 176 | /* port rcvhdrq head offset */ |
| 177 | u32 port_head; |
Ralph Campbell | 9355fb6 | 2008-04-16 21:09:29 -0700 | [diff] [blame^] | 178 | /* receive packet sequence counter */ |
| 179 | u32 port_seq_cnt; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 180 | }; |
| 181 | |
| 182 | struct sk_buff; |
| 183 | |
| 184 | /* |
| 185 | * control information for layered drivers |
| 186 | */ |
| 187 | struct _ipath_layer { |
| 188 | void *l_arg; |
| 189 | }; |
| 190 | |
Bryan O'Sullivan | 1fd3b40 | 2006-09-28 09:00:13 -0700 | [diff] [blame] | 191 | struct ipath_skbinfo { |
| 192 | struct sk_buff *skb; |
| 193 | dma_addr_t phys; |
| 194 | }; |
| 195 | |
Ralph Campbell | c4b4d16 | 2008-04-16 21:09:26 -0700 | [diff] [blame] | 196 | /* max dwords in small buffer packet */ |
| 197 | #define IPATH_SMALLBUF_DWORDS (dd->ipath_piosize2k >> 2) |
| 198 | |
Dave Olson | c4bce80 | 2008-01-08 02:36:46 -0800 | [diff] [blame] | 199 | /* |
| 200 | * Possible IB config parameters for ipath_f_get/set_ib_cfg() |
| 201 | */ |
| 202 | #define IPATH_IB_CFG_LIDLMC 0 /* Get/set LID (LS16b) and Mask (MS16b) */ |
| 203 | #define IPATH_IB_CFG_HRTBT 1 /* Get/set Heartbeat off/enable/auto */ |
| 204 | #define IPATH_IB_HRTBT_ON 3 /* Heartbeat enabled, sent every 100msec */ |
| 205 | #define IPATH_IB_HRTBT_OFF 0 /* Heartbeat off */ |
| 206 | #define IPATH_IB_CFG_LWID_ENB 2 /* Get/set allowed Link-width */ |
| 207 | #define IPATH_IB_CFG_LWID 3 /* Get currently active Link-width */ |
| 208 | #define IPATH_IB_CFG_SPD_ENB 4 /* Get/set allowed Link speeds */ |
| 209 | #define IPATH_IB_CFG_SPD 5 /* Get current Link spd */ |
| 210 | #define IPATH_IB_CFG_RXPOL_ENB 6 /* Get/set Auto-RX-polarity enable */ |
| 211 | #define IPATH_IB_CFG_LREV_ENB 7 /* Get/set Auto-Lane-reversal enable */ |
| 212 | #define IPATH_IB_CFG_LINKLATENCY 8 /* Get Auto-Lane-reversal enable */ |
| 213 | |
| 214 | |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 215 | struct ipath_devdata { |
| 216 | struct list_head ipath_list; |
| 217 | |
| 218 | struct ipath_kregs const *ipath_kregs; |
| 219 | struct ipath_cregs const *ipath_cregs; |
| 220 | |
| 221 | /* mem-mapped pointer to base of chip regs */ |
| 222 | u64 __iomem *ipath_kregbase; |
| 223 | /* end of mem-mapped chip space; range checking */ |
| 224 | u64 __iomem *ipath_kregend; |
| 225 | /* physical address of chip for io_remap, etc. */ |
| 226 | unsigned long ipath_physaddr; |
| 227 | /* base of memory alloced for ipath_kregbase, for free */ |
| 228 | u64 *ipath_kregalloc; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 229 | /* ipath_cfgports pointers */ |
| 230 | struct ipath_portdata **ipath_pd; |
| 231 | /* sk_buffs used by port 0 eager receive queue */ |
Bryan O'Sullivan | 1fd3b40 | 2006-09-28 09:00:13 -0700 | [diff] [blame] | 232 | struct ipath_skbinfo *ipath_port0_skbinfo; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 233 | /* kvirt address of 1st 2k pio buffer */ |
| 234 | void __iomem *ipath_pio2kbase; |
| 235 | /* kvirt address of 1st 4k pio buffer */ |
| 236 | void __iomem *ipath_pio4kbase; |
| 237 | /* |
| 238 | * points to area where PIOavail registers will be DMA'ed. |
| 239 | * Has to be on a page of it's own, because the page will be |
| 240 | * mapped into user program space. This copy is *ONLY* ever |
| 241 | * written by DMA, not by the driver! Need a copy per device |
| 242 | * when we get to multiple devices |
| 243 | */ |
| 244 | volatile __le64 *ipath_pioavailregs_dma; |
| 245 | /* physical address where updates occur */ |
| 246 | dma_addr_t ipath_pioavailregs_phys; |
| 247 | struct _ipath_layer ipath_layer; |
| 248 | /* setup intr */ |
| 249 | int (*ipath_f_intrsetup)(struct ipath_devdata *); |
Dave Olson | c4bce80 | 2008-01-08 02:36:46 -0800 | [diff] [blame] | 250 | /* fallback to alternate interrupt type if possible */ |
| 251 | int (*ipath_f_intr_fallback)(struct ipath_devdata *); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 252 | /* setup on-chip bus config */ |
| 253 | int (*ipath_f_bus)(struct ipath_devdata *, struct pci_dev *); |
| 254 | /* hard reset chip */ |
| 255 | int (*ipath_f_reset)(struct ipath_devdata *); |
| 256 | int (*ipath_f_get_boardname)(struct ipath_devdata *, char *, |
| 257 | size_t); |
| 258 | void (*ipath_f_init_hwerrors)(struct ipath_devdata *); |
| 259 | void (*ipath_f_handle_hwerrors)(struct ipath_devdata *, char *, |
| 260 | size_t); |
| 261 | void (*ipath_f_quiet_serdes)(struct ipath_devdata *); |
| 262 | int (*ipath_f_bringup_serdes)(struct ipath_devdata *); |
| 263 | int (*ipath_f_early_init)(struct ipath_devdata *); |
| 264 | void (*ipath_f_clear_tids)(struct ipath_devdata *, unsigned); |
| 265 | void (*ipath_f_put_tid)(struct ipath_devdata *, u64 __iomem*, |
| 266 | u32, unsigned long); |
| 267 | void (*ipath_f_tidtemplate)(struct ipath_devdata *); |
| 268 | void (*ipath_f_cleanup)(struct ipath_devdata *); |
| 269 | void (*ipath_f_setextled)(struct ipath_devdata *, u64, u64); |
| 270 | /* fill out chip-specific fields */ |
| 271 | int (*ipath_f_get_base_info)(struct ipath_portdata *, void *); |
Bryan O'Sullivan | 51f65eb | 2006-11-08 17:44:58 -0800 | [diff] [blame] | 272 | /* free irq */ |
| 273 | void (*ipath_f_free_irq)(struct ipath_devdata *); |
Dave Olson | c4bce80 | 2008-01-08 02:36:46 -0800 | [diff] [blame] | 274 | struct ipath_message_header *(*ipath_f_get_msgheader) |
| 275 | (struct ipath_devdata *, __le32 *); |
Ralph Campbell | 60948a4 | 2008-01-06 21:02:34 -0800 | [diff] [blame] | 276 | void (*ipath_f_config_ports)(struct ipath_devdata *, ushort); |
Dave Olson | c4bce80 | 2008-01-08 02:36:46 -0800 | [diff] [blame] | 277 | int (*ipath_f_get_ib_cfg)(struct ipath_devdata *, int); |
| 278 | int (*ipath_f_set_ib_cfg)(struct ipath_devdata *, int, u32); |
| 279 | void (*ipath_f_config_jint)(struct ipath_devdata *, u16 , u16); |
Ralph Campbell | 3029fcc | 2008-01-06 21:02:34 -0800 | [diff] [blame] | 280 | void (*ipath_f_read_counters)(struct ipath_devdata *, |
Dave Olson | c4bce80 | 2008-01-08 02:36:46 -0800 | [diff] [blame] | 281 | struct infinipath_counters *); |
| 282 | void (*ipath_f_xgxs_reset)(struct ipath_devdata *); |
| 283 | /* per chip actions needed for IB Link up/down changes */ |
| 284 | int (*ipath_f_ib_updown)(struct ipath_devdata *, int, u64); |
| 285 | |
Ralph Campbell | 9355fb6 | 2008-04-16 21:09:29 -0700 | [diff] [blame^] | 286 | unsigned ipath_lastegr_idx; |
Bryan O'Sullivan | b1c1b6a | 2006-08-25 11:24:31 -0700 | [diff] [blame] | 287 | struct ipath_ibdev *verbs_dev; |
| 288 | struct timer_list verbs_timer; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 289 | /* total dwords sent (summed from counter) */ |
| 290 | u64 ipath_sword; |
| 291 | /* total dwords rcvd (summed from counter) */ |
| 292 | u64 ipath_rword; |
| 293 | /* total packets sent (summed from counter) */ |
| 294 | u64 ipath_spkts; |
| 295 | /* total packets rcvd (summed from counter) */ |
| 296 | u64 ipath_rpkts; |
| 297 | /* ipath_statusp initially points to this. */ |
| 298 | u64 _ipath_status; |
| 299 | /* GUID for this interface, in network order */ |
| 300 | __be64 ipath_guid; |
| 301 | /* |
| 302 | * aggregrate of error bits reported since last cleared, for |
| 303 | * limiting of error reporting |
| 304 | */ |
| 305 | ipath_err_t ipath_lasterror; |
| 306 | /* |
| 307 | * aggregrate of error bits reported since last cleared, for |
| 308 | * limiting of hwerror reporting |
| 309 | */ |
| 310 | ipath_err_t ipath_lasthwerror; |
Dave Olson | 78d1e02 | 2007-07-20 14:41:26 -0700 | [diff] [blame] | 311 | /* errors masked because they occur too fast */ |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 312 | ipath_err_t ipath_maskederrs; |
Dave Olson | 72708a0 | 2008-04-16 21:09:25 -0700 | [diff] [blame] | 313 | u64 ipath_lastlinkrecov; /* link recoveries at last ACTIVE */ |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 314 | /* time in jiffies at which to re-enable maskederrs */ |
| 315 | unsigned long ipath_unmasktime; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 316 | /* count of egrfull errors, combined for all ports */ |
| 317 | u64 ipath_last_tidfull; |
| 318 | /* for ipath_qcheck() */ |
| 319 | u64 ipath_lastport0rcv_cnt; |
| 320 | /* template for writing TIDs */ |
| 321 | u64 ipath_tidtemplate; |
| 322 | /* value to write to free TIDs */ |
| 323 | u64 ipath_tidinvalid; |
Bryan O'Sullivan | 525d0ca | 2006-08-25 11:24:39 -0700 | [diff] [blame] | 324 | /* IBA6120 rcv interrupt setup */ |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 325 | u64 ipath_rhdrhead_intr_off; |
| 326 | |
| 327 | /* size of memory at ipath_kregbase */ |
| 328 | u32 ipath_kregsize; |
| 329 | /* number of registers used for pioavail */ |
| 330 | u32 ipath_pioavregs; |
| 331 | /* IPATH_POLL, etc. */ |
| 332 | u32 ipath_flags; |
Bryan O'Sullivan | 0fd4136 | 2006-08-25 11:24:34 -0700 | [diff] [blame] | 333 | /* ipath_flags driver is waiting for */ |
| 334 | u32 ipath_state_wanted; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 335 | /* last buffer for user use, first buf for kernel use is this |
| 336 | * index. */ |
| 337 | u32 ipath_lastport_piobuf; |
| 338 | /* is a stats timer active */ |
| 339 | u32 ipath_stats_timer_active; |
Arthur Jones | 3588423 | 2007-07-06 12:48:53 -0700 | [diff] [blame] | 340 | /* number of interrupts for this device -- saturates... */ |
| 341 | u32 ipath_int_counter; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 342 | /* dwords sent read from counter */ |
| 343 | u32 ipath_lastsword; |
| 344 | /* dwords received read from counter */ |
| 345 | u32 ipath_lastrword; |
| 346 | /* sent packets read from counter */ |
| 347 | u32 ipath_lastspkts; |
| 348 | /* received packets read from counter */ |
| 349 | u32 ipath_lastrpkts; |
| 350 | /* pio bufs allocated per port */ |
| 351 | u32 ipath_pbufsport; |
| 352 | /* |
| 353 | * number of ports configured as max; zero is set to number chip |
| 354 | * supports, less gives more pio bufs/port, etc. |
| 355 | */ |
| 356 | u32 ipath_cfgports; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 357 | /* count of port 0 hdrqfull errors */ |
| 358 | u32 ipath_p0_hdrqfull; |
Ralph Campbell | 60948a4 | 2008-01-06 21:02:34 -0800 | [diff] [blame] | 359 | /* port 0 number of receive eager buffers */ |
| 360 | u32 ipath_p0_rcvegrcnt; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 361 | |
| 362 | /* |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 363 | * index of last piobuffer we used. Speeds up searching, by |
| 364 | * starting at this point. Doesn't matter if multiple cpu's use and |
| 365 | * update, last updater is only write that matters. Whenever it |
| 366 | * wraps, we update shadow copies. Need a copy per device when we |
| 367 | * get to multiple devices |
| 368 | */ |
| 369 | u32 ipath_lastpioindex; |
Ralph Campbell | c4b4d16 | 2008-04-16 21:09:26 -0700 | [diff] [blame] | 370 | u32 ipath_lastpioindexl; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 371 | /* max length of freezemsg */ |
| 372 | u32 ipath_freezelen; |
| 373 | /* |
| 374 | * consecutive times we wanted a PIO buffer but were unable to |
| 375 | * get one |
| 376 | */ |
| 377 | u32 ipath_consec_nopiobuf; |
| 378 | /* |
| 379 | * hint that we should update ipath_pioavailshadow before |
| 380 | * looking for a PIO buffer |
| 381 | */ |
| 382 | u32 ipath_upd_pio_shadow; |
| 383 | /* so we can rewrite it after a chip reset */ |
| 384 | u32 ipath_pcibar0; |
| 385 | /* so we can rewrite it after a chip reset */ |
| 386 | u32 ipath_pcibar1; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 387 | |
Bryan O'Sullivan | 51f65eb | 2006-11-08 17:44:58 -0800 | [diff] [blame] | 388 | /* interrupt number */ |
| 389 | int ipath_irq; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 390 | /* HT/PCI Vendor ID (here for NodeInfo) */ |
| 391 | u16 ipath_vendorid; |
| 392 | /* HT/PCI Device ID (here for NodeInfo) */ |
| 393 | u16 ipath_deviceid; |
| 394 | /* offset in HT config space of slave/primary interface block */ |
| 395 | u8 ipath_ht_slave_off; |
| 396 | /* for write combining settings */ |
| 397 | unsigned long ipath_wc_cookie; |
Bryan O'Sullivan | 957670a | 2006-09-28 09:00:15 -0700 | [diff] [blame] | 398 | unsigned long ipath_wc_base; |
| 399 | unsigned long ipath_wc_len; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 400 | /* ref count for each pkey */ |
| 401 | atomic_t ipath_pkeyrefs[4]; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 402 | /* shadow copy of struct page *'s for exp tid pages */ |
| 403 | struct page **ipath_pageshadow; |
Bryan O'Sullivan | 1fd3b40 | 2006-09-28 09:00:13 -0700 | [diff] [blame] | 404 | /* shadow copy of dma handles for exp tid pages */ |
| 405 | dma_addr_t *ipath_physshadow; |
Dave Olson | c4bce80 | 2008-01-08 02:36:46 -0800 | [diff] [blame] | 406 | u64 __iomem *ipath_egrtidbase; |
Dave Olson | ddb70c8 | 2008-01-08 01:51:46 -0800 | [diff] [blame] | 407 | /* lock to workaround chip bug 9437 and others */ |
| 408 | spinlock_t ipath_kernel_tid_lock; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 409 | spinlock_t ipath_tid_lock; |
John Gregor | e342c11 | 2007-09-05 01:57:14 -0700 | [diff] [blame] | 410 | spinlock_t ipath_sendctrl_lock; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 411 | |
| 412 | /* |
| 413 | * IPATH_STATUS_*, |
| 414 | * this address is mapped readonly into user processes so they can |
| 415 | * get status cheaply, whenever they want. |
| 416 | */ |
| 417 | u64 *ipath_statusp; |
| 418 | /* freeze msg if hw error put chip in freeze */ |
| 419 | char *ipath_freezemsg; |
| 420 | /* pci access data structure */ |
| 421 | struct pci_dev *pcidev; |
Bryan O'Sullivan | a2acb2f | 2006-07-01 04:35:52 -0700 | [diff] [blame] | 422 | struct cdev *user_cdev; |
| 423 | struct cdev *diag_cdev; |
| 424 | struct class_device *user_class_dev; |
| 425 | struct class_device *diag_class_dev; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 426 | /* timer used to prevent stats overflow, error throttling, etc. */ |
| 427 | struct timer_list ipath_stats_timer; |
Bryan O'Sullivan | 35783ec | 2006-07-01 04:36:15 -0700 | [diff] [blame] | 428 | void *ipath_dummy_hdrq; /* used after port close */ |
| 429 | dma_addr_t ipath_dummy_hdrq_phys; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 430 | |
Ralph Campbell | a18e26a | 2008-01-06 21:02:34 -0800 | [diff] [blame] | 431 | unsigned long ipath_ureg_align; /* user register alignment */ |
| 432 | |
John Gregor | 58411d1 | 2008-04-16 21:09:24 -0700 | [diff] [blame] | 433 | /* HoL blocking / user app forward-progress state */ |
| 434 | unsigned ipath_hol_state; |
| 435 | unsigned ipath_hol_next; |
| 436 | struct timer_list ipath_hol_timer; |
| 437 | |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 438 | /* |
| 439 | * Shadow copies of registers; size indicates read access size. |
| 440 | * Most of them are readonly, but some are write-only register, |
| 441 | * where we manipulate the bits in the shadow copy, and then write |
| 442 | * the shadow copy to infinipath. |
| 443 | * |
| 444 | * We deliberately make most of these 32 bits, since they have |
| 445 | * restricted range. For any that we read, we won't to generate 32 |
| 446 | * bit accesses, since Opteron will generate 2 separate 32 bit HT |
| 447 | * transactions for a 64 bit read, and we want to avoid unnecessary |
| 448 | * HT transactions. |
| 449 | */ |
| 450 | |
| 451 | /* This is the 64 bit group */ |
| 452 | |
| 453 | /* |
| 454 | * shadow of pioavail, check to be sure it's large enough at |
| 455 | * init time. |
| 456 | */ |
| 457 | unsigned long ipath_pioavailshadow[8]; |
Ralph Campbell | c4b4d16 | 2008-04-16 21:09:26 -0700 | [diff] [blame] | 458 | /* bitmap of send buffers available for the kernel to use with PIO. */ |
| 459 | unsigned long ipath_pioavailkernel[8]; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 460 | /* shadow of kr_gpio_out, for rmw ops */ |
| 461 | u64 ipath_gpio_out; |
Arthur Jones | 8f140b4 | 2007-05-10 12:10:49 -0700 | [diff] [blame] | 462 | /* shadow the gpio mask register */ |
| 463 | u64 ipath_gpio_mask; |
Michael Albaugh | 17b2eb9 | 2007-05-17 07:05:04 -0700 | [diff] [blame] | 464 | /* shadow the gpio output enable, etc... */ |
| 465 | u64 ipath_extctrl; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 466 | /* kr_revision shadow */ |
| 467 | u64 ipath_revision; |
| 468 | /* |
| 469 | * shadow of ibcctrl, for interrupt handling of link changes, |
| 470 | * etc. |
| 471 | */ |
| 472 | u64 ipath_ibcctrl; |
| 473 | /* |
| 474 | * last ibcstatus, to suppress "duplicate" status change messages, |
| 475 | * mostly from 2 to 3 |
| 476 | */ |
| 477 | u64 ipath_lastibcstat; |
| 478 | /* hwerrmask shadow */ |
| 479 | ipath_err_t ipath_hwerrmask; |
Dave Olson | 78d1e02 | 2007-07-20 14:41:26 -0700 | [diff] [blame] | 480 | ipath_err_t ipath_errormask; /* errormask shadow */ |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 481 | /* interrupt config reg shadow */ |
| 482 | u64 ipath_intconfig; |
| 483 | /* kr_sendpiobufbase value */ |
| 484 | u64 ipath_piobufbase; |
| 485 | |
| 486 | /* these are the "32 bit" regs */ |
| 487 | |
| 488 | /* |
| 489 | * number of GUIDs in the flash for this interface; may need some |
| 490 | * rethinking for setting on other ifaces |
| 491 | */ |
| 492 | u32 ipath_nguid; |
| 493 | /* |
| 494 | * the following two are 32-bit bitmasks, but {test,clear,set}_bit |
| 495 | * all expect bit fields to be "unsigned long" |
| 496 | */ |
| 497 | /* shadow kr_rcvctrl */ |
| 498 | unsigned long ipath_rcvctrl; |
| 499 | /* shadow kr_sendctrl */ |
| 500 | unsigned long ipath_sendctrl; |
Bryan O'Sullivan | 89d1e09 | 2006-09-28 09:00:18 -0700 | [diff] [blame] | 501 | unsigned long ipath_lastcancel; /* to not count armlaunch after cancel */ |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 502 | |
| 503 | /* value we put in kr_rcvhdrcnt */ |
| 504 | u32 ipath_rcvhdrcnt; |
| 505 | /* value we put in kr_rcvhdrsize */ |
| 506 | u32 ipath_rcvhdrsize; |
| 507 | /* value we put in kr_rcvhdrentsize */ |
| 508 | u32 ipath_rcvhdrentsize; |
| 509 | /* offset of last entry in rcvhdrq */ |
| 510 | u32 ipath_hdrqlast; |
| 511 | /* kr_portcnt value */ |
| 512 | u32 ipath_portcnt; |
| 513 | /* kr_pagealign value */ |
| 514 | u32 ipath_palign; |
| 515 | /* number of "2KB" PIO buffers */ |
| 516 | u32 ipath_piobcnt2k; |
| 517 | /* size in bytes of "2KB" PIO buffers */ |
| 518 | u32 ipath_piosize2k; |
| 519 | /* number of "4KB" PIO buffers */ |
| 520 | u32 ipath_piobcnt4k; |
| 521 | /* size in bytes of "4KB" PIO buffers */ |
| 522 | u32 ipath_piosize4k; |
| 523 | /* kr_rcvegrbase value */ |
| 524 | u32 ipath_rcvegrbase; |
| 525 | /* kr_rcvegrcnt value */ |
| 526 | u32 ipath_rcvegrcnt; |
| 527 | /* kr_rcvtidbase value */ |
| 528 | u32 ipath_rcvtidbase; |
| 529 | /* kr_rcvtidcnt value */ |
| 530 | u32 ipath_rcvtidcnt; |
| 531 | /* kr_sendregbase */ |
| 532 | u32 ipath_sregbase; |
| 533 | /* kr_userregbase */ |
| 534 | u32 ipath_uregbase; |
| 535 | /* kr_counterregbase */ |
| 536 | u32 ipath_cregbase; |
| 537 | /* shadow the control register contents */ |
| 538 | u32 ipath_control; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 539 | /* PCI revision register (HTC rev on FPGA) */ |
| 540 | u32 ipath_pcirev; |
| 541 | |
| 542 | /* chip address space used by 4k pio buffers */ |
| 543 | u32 ipath_4kalign; |
| 544 | /* The MTU programmed for this unit */ |
| 545 | u32 ipath_ibmtu; |
| 546 | /* |
| 547 | * The max size IB packet, included IB headers that we can send. |
| 548 | * Starts same as ipath_piosize, but is affected when ibmtu is |
| 549 | * changed, or by size of eager buffers |
| 550 | */ |
| 551 | u32 ipath_ibmaxlen; |
| 552 | /* |
| 553 | * ibmaxlen at init time, limited by chip and by receive buffer |
| 554 | * size. Not changed after init. |
| 555 | */ |
| 556 | u32 ipath_init_ibmaxlen; |
| 557 | /* size of each rcvegrbuffer */ |
| 558 | u32 ipath_rcvegrbufsize; |
Arthur Jones | 6ca2abf | 2008-04-16 21:01:12 -0700 | [diff] [blame] | 559 | /* localbus width (1, 2,4,8,16,32) from config space */ |
| 560 | u32 ipath_lbus_width; |
| 561 | /* localbus speed (HT: 200,400,800,1000; PCIe 2500) */ |
| 562 | u32 ipath_lbus_speed; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 563 | /* |
| 564 | * number of sequential ibcstatus change for polling active/quiet |
| 565 | * (i.e., link not coming up). |
| 566 | */ |
| 567 | u32 ipath_ibpollcnt; |
| 568 | /* low and high portions of MSI capability/vector */ |
| 569 | u32 ipath_msi_lo; |
| 570 | /* saved after PCIe init for restore after reset */ |
| 571 | u32 ipath_msi_hi; |
| 572 | /* MSI data (vector) saved for restore */ |
| 573 | u16 ipath_msi_data; |
| 574 | /* MLID programmed for this instance */ |
| 575 | u16 ipath_mlid; |
| 576 | /* LID programmed for this instance */ |
| 577 | u16 ipath_lid; |
| 578 | /* list of pkeys programmed; 0 if not set */ |
| 579 | u16 ipath_pkeys[4]; |
Bryan O'Sullivan | 8307c28 | 2006-07-01 04:36:13 -0700 | [diff] [blame] | 580 | /* |
| 581 | * ASCII serial number, from flash, large enough for original |
| 582 | * all digit strings, and longer QLogic serial number format |
| 583 | */ |
| 584 | u8 ipath_serial[16]; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 585 | /* human readable board version */ |
| 586 | u8 ipath_boardversion[80]; |
Arthur Jones | 6ca2abf | 2008-04-16 21:01:12 -0700 | [diff] [blame] | 587 | u8 ipath_lbus_info[32]; /* human readable localbus info */ |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 588 | /* chip major rev, from ipath_revision */ |
| 589 | u8 ipath_majrev; |
| 590 | /* chip minor rev, from ipath_revision */ |
| 591 | u8 ipath_minrev; |
| 592 | /* board rev, from ipath_revision */ |
| 593 | u8 ipath_boardrev; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 594 | /* saved for restore after reset */ |
| 595 | u8 ipath_pci_cacheline; |
| 596 | /* LID mask control */ |
| 597 | u8 ipath_lmc; |
Dave Olson | c4bce80 | 2008-01-08 02:36:46 -0800 | [diff] [blame] | 598 | /* link width supported */ |
| 599 | u8 ipath_link_width_supported; |
| 600 | /* link speed supported */ |
| 601 | u8 ipath_link_speed_supported; |
| 602 | u8 ipath_link_width_enabled; |
| 603 | u8 ipath_link_speed_enabled; |
| 604 | u8 ipath_link_width_active; |
| 605 | u8 ipath_link_speed_active; |
Bryan O'Sullivan | 30fc5c3 | 2006-08-25 11:24:48 -0700 | [diff] [blame] | 606 | /* Rx Polarity inversion (compensate for ~tx on partner) */ |
| 607 | u8 ipath_rx_pol_inv; |
Bryan O'Sullivan | fba7520 | 2006-07-01 04:36:09 -0700 | [diff] [blame] | 608 | |
Ralph Campbell | 9355fb6 | 2008-04-16 21:09:29 -0700 | [diff] [blame^] | 609 | u8 ipath_r_portenable_shift; |
| 610 | u8 ipath_r_intravail_shift; |
| 611 | u8 ipath_r_tailupd_shift; |
| 612 | u8 ipath_r_portcfg_shift; |
| 613 | |
| 614 | /* unit # of this chip, if present */ |
| 615 | int ipath_unit; |
| 616 | |
Bryan O'Sullivan | fba7520 | 2006-07-01 04:36:09 -0700 | [diff] [blame] | 617 | /* local link integrity counter */ |
| 618 | u32 ipath_lli_counter; |
| 619 | /* local link integrity errors */ |
| 620 | u32 ipath_lli_errors; |
Bryan O'Sullivan | 2c9446a | 2006-09-28 09:00:00 -0700 | [diff] [blame] | 621 | /* |
| 622 | * Above counts only cases where _successive_ LocalLinkIntegrity |
| 623 | * errors were seen in the receive headers of kern-packets. |
| 624 | * Below are the three (monotonically increasing) counters |
| 625 | * maintained via GPIO interrupts on iba6120-rev2. |
| 626 | */ |
| 627 | u32 ipath_rxfc_unsupvl_errs; |
| 628 | u32 ipath_overrun_thresh_errs; |
| 629 | u32 ipath_lli_errs; |
Bryan O'Sullivan | f62fe77 | 2006-09-28 09:00:11 -0700 | [diff] [blame] | 630 | |
Arthur Jones | 3588423 | 2007-07-06 12:48:53 -0700 | [diff] [blame] | 631 | /* status check work */ |
| 632 | struct delayed_work status_work; |
| 633 | |
Bryan O'Sullivan | f62fe77 | 2006-09-28 09:00:11 -0700 | [diff] [blame] | 634 | /* |
| 635 | * Not all devices managed by a driver instance are the same |
| 636 | * type, so these fields must be per-device. |
| 637 | */ |
| 638 | u64 ipath_i_bitsextant; |
| 639 | ipath_err_t ipath_e_bitsextant; |
| 640 | ipath_err_t ipath_hwe_bitsextant; |
| 641 | |
| 642 | /* |
| 643 | * Below should be computable from number of ports, |
| 644 | * since they are never modified. |
| 645 | */ |
Ralph Campbell | 9355fb6 | 2008-04-16 21:09:29 -0700 | [diff] [blame^] | 646 | u64 ipath_i_rcvavail_mask; |
| 647 | u64 ipath_i_rcvurg_mask; |
Dave Olson | c4bce80 | 2008-01-08 02:36:46 -0800 | [diff] [blame] | 648 | u16 ipath_i_rcvurg_shift; |
| 649 | u16 ipath_i_rcvavail_shift; |
Bryan O'Sullivan | f62fe77 | 2006-09-28 09:00:11 -0700 | [diff] [blame] | 650 | |
| 651 | /* |
| 652 | * Register bits for selecting i2c direction and values, used for |
| 653 | * I2C serial flash. |
| 654 | */ |
Michael Albaugh | d84e0b2 | 2008-04-16 21:09:27 -0700 | [diff] [blame] | 655 | u8 ipath_gpio_sda_num; |
| 656 | u8 ipath_gpio_scl_num; |
| 657 | u8 ipath_i2c_chain_type; |
Bryan O'Sullivan | f62fe77 | 2006-09-28 09:00:11 -0700 | [diff] [blame] | 658 | u64 ipath_gpio_sda; |
| 659 | u64 ipath_gpio_scl; |
Michael Albaugh | 82466f0 | 2007-05-16 15:45:09 -0700 | [diff] [blame] | 660 | |
Michael Albaugh | 17b2eb9 | 2007-05-17 07:05:04 -0700 | [diff] [blame] | 661 | /* lock for doing RMW of shadows/regs for ExtCtrl and GPIO */ |
| 662 | spinlock_t ipath_gpio_lock; |
| 663 | |
Dave Olson | c4bce80 | 2008-01-08 02:36:46 -0800 | [diff] [blame] | 664 | /* |
| 665 | * IB link and linktraining states and masks that vary per chip in |
| 666 | * some way. Set at init, to avoid each IB status change interrupt |
| 667 | */ |
| 668 | u8 ibcs_ls_shift; |
| 669 | u8 ibcs_lts_mask; |
| 670 | u32 ibcs_mask; |
| 671 | u32 ib_init; |
| 672 | u32 ib_arm; |
| 673 | u32 ib_active; |
| 674 | |
| 675 | u16 ipath_rhf_offset; /* offset of RHF within receive header entry */ |
| 676 | |
| 677 | /* |
| 678 | * shift/mask for linkcmd, linkinitcmd, maxpktlen in ibccontol |
| 679 | * reg. Changes for IBA7220 |
| 680 | */ |
| 681 | u8 ibcc_lic_mask; /* LinkInitCmd */ |
| 682 | u8 ibcc_lc_shift; /* LinkCmd */ |
| 683 | u8 ibcc_mpl_shift; /* Maxpktlen */ |
| 684 | |
| 685 | u8 delay_mult; |
| 686 | |
Michael Albaugh | 82466f0 | 2007-05-16 15:45:09 -0700 | [diff] [blame] | 687 | /* used to override LED behavior */ |
| 688 | u8 ipath_led_override; /* Substituted for normal value, if non-zero */ |
| 689 | u16 ipath_led_override_timeoff; /* delta to next timer event */ |
| 690 | u8 ipath_led_override_vals[2]; /* Alternates per blink-frame */ |
| 691 | u8 ipath_led_override_phase; /* Just counts, LSB picks from vals[] */ |
| 692 | atomic_t ipath_led_override_timer_active; |
| 693 | /* Used to flash LEDs in override mode */ |
| 694 | struct timer_list ipath_led_override_timer; |
| 695 | |
Michael Albaugh | aecd3b5 | 2007-05-17 07:26:28 -0700 | [diff] [blame] | 696 | /* Support (including locks) for EEPROM logging of errors and time */ |
| 697 | /* control access to actual counters, timer */ |
| 698 | spinlock_t ipath_eep_st_lock; |
| 699 | /* control high-level access to EEPROM */ |
Matthias Kaehlcke | 2c45688 | 2007-11-15 15:23:25 -0800 | [diff] [blame] | 700 | struct mutex ipath_eep_lock; |
Michael Albaugh | aecd3b5 | 2007-05-17 07:26:28 -0700 | [diff] [blame] | 701 | /* Below inc'd by ipath_snap_cntrs(), locked by ipath_eep_st_lock */ |
| 702 | uint64_t ipath_traffic_wds; |
| 703 | /* active time is kept in seconds, but logged in hours */ |
| 704 | atomic_t ipath_active_time; |
| 705 | /* Below are nominal shadow of EEPROM, new since last EEPROM update */ |
| 706 | uint8_t ipath_eep_st_errs[IPATH_EEP_LOG_CNT]; |
| 707 | uint8_t ipath_eep_st_new_errs[IPATH_EEP_LOG_CNT]; |
| 708 | uint16_t ipath_eep_hrs; |
| 709 | /* |
| 710 | * masks for which bits of errs, hwerrs that cause |
| 711 | * each of the counters to increment. |
| 712 | */ |
| 713 | struct ipath_eep_log_mask ipath_eep_st_masks[IPATH_EEP_LOG_CNT]; |
Dave Olson | c4bce80 | 2008-01-08 02:36:46 -0800 | [diff] [blame] | 714 | |
| 715 | /* interrupt mitigation reload register info */ |
| 716 | u16 ipath_jint_idle_ticks; /* idle clock ticks */ |
| 717 | u16 ipath_jint_max_packets; /* max packets across all ports */ |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 718 | }; |
| 719 | |
John Gregor | 58411d1 | 2008-04-16 21:09:24 -0700 | [diff] [blame] | 720 | /* ipath_hol_state values (stopping/starting user proc, send flushing) */ |
| 721 | #define IPATH_HOL_UP 0 |
| 722 | #define IPATH_HOL_DOWN 1 |
| 723 | /* ipath_hol_next toggle values, used when hol_state IPATH_HOL_DOWN */ |
| 724 | #define IPATH_HOL_DOWNSTOP 0 |
| 725 | #define IPATH_HOL_DOWNCONT 1 |
| 726 | |
Bryan O'Sullivan | 9929b0f | 2006-09-28 08:59:59 -0700 | [diff] [blame] | 727 | /* Private data for file operations */ |
| 728 | struct ipath_filedata { |
| 729 | struct ipath_portdata *pd; |
| 730 | unsigned subport; |
| 731 | unsigned tidcursor; |
| 732 | }; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 733 | extern struct list_head ipath_dev_list; |
| 734 | extern spinlock_t ipath_devs_lock; |
| 735 | extern struct ipath_devdata *ipath_lookup(int unit); |
| 736 | |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 737 | int ipath_init_chip(struct ipath_devdata *, int); |
| 738 | int ipath_enable_wc(struct ipath_devdata *dd); |
| 739 | void ipath_disable_wc(struct ipath_devdata *dd); |
Arthur Jones | 6ef6aee | 2008-04-16 21:01:06 -0700 | [diff] [blame] | 740 | int ipath_count_units(int *npresentp, int *nupp, int *maxportsp); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 741 | void ipath_shutdown_device(struct ipath_devdata *); |
Dave Olson | 0f4fc5e | 2007-07-06 12:48:33 -0700 | [diff] [blame] | 742 | void ipath_clear_freeze(struct ipath_devdata *); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 743 | |
| 744 | struct file_operations; |
Arjan van de Ven | 2b8693c | 2007-02-12 00:55:32 -0800 | [diff] [blame] | 745 | int ipath_cdev_init(int minor, char *name, const struct file_operations *fops, |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 746 | struct cdev **cdevp, struct class_device **class_devp); |
| 747 | void ipath_cdev_cleanup(struct cdev **cdevp, |
| 748 | struct class_device **class_devp); |
| 749 | |
Bryan O'Sullivan | a2acb2f | 2006-07-01 04:35:52 -0700 | [diff] [blame] | 750 | int ipath_diag_add(struct ipath_devdata *); |
| 751 | void ipath_diag_remove(struct ipath_devdata *); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 752 | |
Bryan O'Sullivan | 0fd4136 | 2006-08-25 11:24:34 -0700 | [diff] [blame] | 753 | extern wait_queue_head_t ipath_state_wait; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 754 | |
| 755 | int ipath_user_add(struct ipath_devdata *dd); |
Bryan O'Sullivan | a2acb2f | 2006-07-01 04:35:52 -0700 | [diff] [blame] | 756 | void ipath_user_remove(struct ipath_devdata *dd); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 757 | |
| 758 | struct sk_buff *ipath_alloc_skb(struct ipath_devdata *dd, gfp_t); |
| 759 | |
| 760 | extern int ipath_diag_inuse; |
| 761 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 762 | irqreturn_t ipath_intr(int irq, void *devid); |
Bryan O'Sullivan | 8ec1077 | 2007-03-15 14:44:55 -0700 | [diff] [blame] | 763 | int ipath_decode_err(char *buf, size_t blen, ipath_err_t err); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 764 | #if __IPATH_INFO || __IPATH_DBG |
| 765 | extern const char *ipath_ibcstatus_str[]; |
| 766 | #endif |
| 767 | |
| 768 | /* clean up any per-chip chip-specific stuff */ |
| 769 | void ipath_chip_cleanup(struct ipath_devdata *); |
| 770 | /* clean up any chip type-specific stuff */ |
| 771 | void ipath_chip_done(void); |
| 772 | |
| 773 | /* check to see if we have to force ordering for write combining */ |
| 774 | int ipath_unordered_wc(void); |
| 775 | |
| 776 | void ipath_disarm_piobufs(struct ipath_devdata *, unsigned first, |
| 777 | unsigned cnt); |
Dave Olson | 3810f2a | 2007-07-20 14:23:37 -0700 | [diff] [blame] | 778 | void ipath_cancel_sends(struct ipath_devdata *, int); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 779 | |
| 780 | int ipath_create_rcvhdrq(struct ipath_devdata *, struct ipath_portdata *); |
Bryan O'Sullivan | f37bda9 | 2006-07-01 04:36:03 -0700 | [diff] [blame] | 781 | void ipath_free_pddata(struct ipath_devdata *, struct ipath_portdata *); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 782 | |
| 783 | int ipath_parse_ushort(const char *str, unsigned short *valp); |
| 784 | |
Ralph Campbell | c59a80a | 2007-12-20 02:43:23 -0800 | [diff] [blame] | 785 | void ipath_kreceive(struct ipath_portdata *); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 786 | int ipath_setrcvhdrsize(struct ipath_devdata *, unsigned); |
| 787 | int ipath_reset_device(int); |
| 788 | void ipath_get_faststats(unsigned long); |
Ralph Campbell | 140277e | 2007-12-14 01:53:56 -0800 | [diff] [blame] | 789 | int ipath_wait_linkstate(struct ipath_devdata *, u32, int); |
Bryan O'Sullivan | 34b2aaf | 2006-08-25 11:24:32 -0700 | [diff] [blame] | 790 | int ipath_set_linkstate(struct ipath_devdata *, u8); |
| 791 | int ipath_set_mtu(struct ipath_devdata *, u16); |
| 792 | int ipath_set_lid(struct ipath_devdata *, u32, u8); |
Bryan O'Sullivan | 30fc5c3 | 2006-08-25 11:24:48 -0700 | [diff] [blame] | 793 | int ipath_set_rx_pol_inv(struct ipath_devdata *dd, u8 new_pol_inv); |
Dave Olson | 6ac5072 | 2007-08-09 03:11:38 -0700 | [diff] [blame] | 794 | void ipath_enable_armlaunch(struct ipath_devdata *); |
| 795 | void ipath_disable_armlaunch(struct ipath_devdata *); |
John Gregor | 58411d1 | 2008-04-16 21:09:24 -0700 | [diff] [blame] | 796 | void ipath_hol_down(struct ipath_devdata *); |
| 797 | void ipath_hol_up(struct ipath_devdata *); |
| 798 | void ipath_hol_event(unsigned long); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 799 | |
| 800 | /* for use in system calls, where we want to know device type, etc. */ |
Bryan O'Sullivan | 9929b0f | 2006-09-28 08:59:59 -0700 | [diff] [blame] | 801 | #define port_fp(fp) ((struct ipath_filedata *)(fp)->private_data)->pd |
| 802 | #define subport_fp(fp) \ |
| 803 | ((struct ipath_filedata *)(fp)->private_data)->subport |
| 804 | #define tidcursor_fp(fp) \ |
| 805 | ((struct ipath_filedata *)(fp)->private_data)->tidcursor |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 806 | |
| 807 | /* |
| 808 | * values for ipath_flags |
| 809 | */ |
Ralph Campbell | a51a251 | 2008-04-16 21:09:24 -0700 | [diff] [blame] | 810 | /* chip can report link latency (IB 1.2) */ |
| 811 | #define IPATH_HAS_LINK_LATENCY 0x1 |
Ralph Campbell | 2ba3f56 | 2008-04-16 21:09:29 -0700 | [diff] [blame] | 812 | /* The chip is up and initted */ |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 813 | #define IPATH_INITTED 0x2 |
| 814 | /* set if any user code has set kr_rcvhdrsize */ |
| 815 | #define IPATH_RCVHDRSZ_SET 0x4 |
| 816 | /* The chip is present and valid for accesses */ |
| 817 | #define IPATH_PRESENT 0x8 |
| 818 | /* HT link0 is only 8 bits wide, ignore upper byte crc |
| 819 | * errors, etc. */ |
| 820 | #define IPATH_8BIT_IN_HT0 0x10 |
| 821 | /* HT link1 is only 8 bits wide, ignore upper byte crc |
| 822 | * errors, etc. */ |
| 823 | #define IPATH_8BIT_IN_HT1 0x20 |
| 824 | /* The link is down */ |
| 825 | #define IPATH_LINKDOWN 0x40 |
| 826 | /* The link level is up (0x11) */ |
| 827 | #define IPATH_LINKINIT 0x80 |
| 828 | /* The link is in the armed (0x21) state */ |
| 829 | #define IPATH_LINKARMED 0x100 |
| 830 | /* The link is in the active (0x31) state */ |
| 831 | #define IPATH_LINKACTIVE 0x200 |
| 832 | /* link current state is unknown */ |
| 833 | #define IPATH_LINKUNK 0x400 |
Ralph Campbell | 210d6ca | 2007-07-24 13:55:39 -0700 | [diff] [blame] | 834 | /* Write combining flush needed for PIO */ |
| 835 | #define IPATH_PIO_FLUSH_WC 0x1000 |
Ralph Campbell | 9355fb6 | 2008-04-16 21:09:29 -0700 | [diff] [blame^] | 836 | /* DMA Receive tail pointer */ |
| 837 | #define IPATH_NODMA_RTAIL 0x2000 |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 838 | /* no IB cable, or no device on IB cable */ |
| 839 | #define IPATH_NOCABLE 0x4000 |
| 840 | /* Supports port zero per packet receive interrupts via |
| 841 | * GPIO */ |
| 842 | #define IPATH_GPIO_INTR 0x8000 |
| 843 | /* uses the coded 4byte TID, not 8 byte */ |
| 844 | #define IPATH_4BYTE_TID 0x10000 |
| 845 | /* packet/word counters are 32 bit, else those 4 counters |
| 846 | * are 64bit */ |
| 847 | #define IPATH_32BITCOUNTERS 0x20000 |
Arthur Jones | 7da0498 | 2008-01-06 21:12:38 -0800 | [diff] [blame] | 848 | /* Interrupt register is 64 bits */ |
| 849 | #define IPATH_INTREG_64 0x40000 |
Ralph Campbell | 9355fb6 | 2008-04-16 21:09:29 -0700 | [diff] [blame^] | 850 | /* can miss port0 rx interrupts */ |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 851 | #define IPATH_DISABLED 0x80000 /* administratively disabled */ |
Bryan O'Sullivan | 2c9446a | 2006-09-28 09:00:00 -0700 | [diff] [blame] | 852 | /* Use GPIO interrupts for new counters */ |
| 853 | #define IPATH_GPIO_ERRINTRS 0x100000 |
Ralph Campbell | 4ea61b5 | 2008-01-06 21:12:38 -0800 | [diff] [blame] | 854 | #define IPATH_SWAP_PIOBUFS 0x200000 |
Michael Albaugh | 359193e | 2008-01-08 00:37:34 -0800 | [diff] [blame] | 855 | /* Suppress heartbeat, even if turning off loopback */ |
| 856 | #define IPATH_NO_HRTBT 0x1000000 |
| 857 | #define IPATH_HAS_MULT_IB_SPEED 0x8000000 |
Michael Albaugh | 4330e4d | 2008-04-16 21:09:26 -0700 | [diff] [blame] | 858 | /* Linkdown-disable intentionally, Do not attempt to bring up */ |
| 859 | #define IPATH_IB_LINK_DISABLED 0x40000000 |
John Gregor | 58411d1 | 2008-04-16 21:09:24 -0700 | [diff] [blame] | 860 | #define IPATH_IB_FORCE_NOTIFY 0x80000000 /* force notify on next ib change */ |
Bryan O'Sullivan | 2c9446a | 2006-09-28 09:00:00 -0700 | [diff] [blame] | 861 | |
| 862 | /* Bits in GPIO for the added interrupts */ |
| 863 | #define IPATH_GPIO_PORT0_BIT 2 |
| 864 | #define IPATH_GPIO_RXUVL_BIT 3 |
| 865 | #define IPATH_GPIO_OVRUN_BIT 4 |
| 866 | #define IPATH_GPIO_LLI_BIT 5 |
| 867 | #define IPATH_GPIO_ERRINTR_MASK 0x38 |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 868 | |
| 869 | /* portdata flag bit offsets */ |
| 870 | /* waiting for a packet to arrive */ |
| 871 | #define IPATH_PORT_WAITING_RCV 2 |
Ralph Campbell | 947d761 | 2007-03-15 14:44:48 -0700 | [diff] [blame] | 872 | /* master has not finished initializing */ |
| 873 | #define IPATH_PORT_MASTER_UNINIT 4 |
Robert Walsh | f2d0423 | 2007-06-18 14:24:49 -0700 | [diff] [blame] | 874 | /* waiting for an urgent packet to arrive */ |
| 875 | #define IPATH_PORT_WAITING_URG 5 |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 876 | |
| 877 | /* free up any allocated data at closes */ |
| 878 | void ipath_free_data(struct ipath_portdata *dd); |
Ralph Campbell | c4b4d16 | 2008-04-16 21:09:26 -0700 | [diff] [blame] | 879 | u32 __iomem *ipath_getpiobuf(struct ipath_devdata *, u32, u32 *); |
| 880 | void ipath_chg_pioavailkernel(struct ipath_devdata *dd, unsigned start, |
| 881 | unsigned len, int avail); |
Bryan O'Sullivan | 525d0ca | 2006-08-25 11:24:39 -0700 | [diff] [blame] | 882 | void ipath_init_iba6120_funcs(struct ipath_devdata *); |
| 883 | void ipath_init_iba6110_funcs(struct ipath_devdata *); |
Bryan O'Sullivan | f2080fa | 2006-05-23 11:32:34 -0700 | [diff] [blame] | 884 | void ipath_get_eeprom_info(struct ipath_devdata *); |
Michael Albaugh | aecd3b5 | 2007-05-17 07:26:28 -0700 | [diff] [blame] | 885 | int ipath_update_eeprom_log(struct ipath_devdata *dd); |
| 886 | void ipath_inc_eeprom_err(struct ipath_devdata *dd, u32 eidx, u32 incr); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 887 | u64 ipath_snap_cntr(struct ipath_devdata *, ipath_creg); |
Ralph Campbell | c4b4d16 | 2008-04-16 21:09:26 -0700 | [diff] [blame] | 888 | void ipath_force_pio_avail_update(struct ipath_devdata *); |
Ralph Campbell | 49739b3 | 2007-09-19 16:47:31 -0700 | [diff] [blame] | 889 | void signal_ib_event(struct ipath_devdata *dd, enum ib_event_type ev); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 890 | |
| 891 | /* |
Michael Albaugh | 82466f0 | 2007-05-16 15:45:09 -0700 | [diff] [blame] | 892 | * Set LED override, only the two LSBs have "public" meaning, but |
| 893 | * any non-zero value substitutes them for the Link and LinkTrain |
| 894 | * LED states. |
| 895 | */ |
| 896 | #define IPATH_LED_PHYS 1 /* Physical (linktraining) GREEN LED */ |
| 897 | #define IPATH_LED_LOG 2 /* Logical (link) YELLOW LED */ |
| 898 | void ipath_set_led_override(struct ipath_devdata *dd, unsigned int val); |
| 899 | |
| 900 | /* |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 901 | * number of words used for protocol header if not set by ipath_userinit(); |
| 902 | */ |
| 903 | #define IPATH_DFLT_RCVHDRSIZE 9 |
| 904 | |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 905 | int ipath_get_user_pages(unsigned long, size_t, struct page **); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 906 | void ipath_release_user_pages(struct page **, size_t); |
| 907 | void ipath_release_user_pages_on_close(struct page **, size_t); |
| 908 | int ipath_eeprom_read(struct ipath_devdata *, u8, void *, int); |
| 909 | int ipath_eeprom_write(struct ipath_devdata *, u8, const void *, int); |
Michael Albaugh | d84e0b2 | 2008-04-16 21:09:27 -0700 | [diff] [blame] | 910 | int ipath_tempsense_read(struct ipath_devdata *, u8 regnum); |
| 911 | int ipath_tempsense_write(struct ipath_devdata *, u8 regnum, u8 data); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 912 | |
| 913 | /* these are used for the registers that vary with port */ |
| 914 | void ipath_write_kreg_port(const struct ipath_devdata *, ipath_kreg, |
| 915 | unsigned, u64); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 916 | |
| 917 | /* |
| 918 | * We could have a single register get/put routine, that takes a group type, |
| 919 | * but this is somewhat clearer and cleaner. It also gives us some error |
| 920 | * checking. 64 bit register reads should always work, but are inefficient |
| 921 | * on opteron (the northbridge always generates 2 separate HT 32 bit reads), |
| 922 | * so we use kreg32 wherever possible. User register and counter register |
| 923 | * reads are always 32 bit reads, so only one form of those routines. |
| 924 | */ |
| 925 | |
| 926 | /* |
| 927 | * At the moment, none of the s-registers are writable, so no |
| 928 | * ipath_write_sreg(), and none of the c-registers are writable, so no |
| 929 | * ipath_write_creg(). |
| 930 | */ |
| 931 | |
| 932 | /** |
| 933 | * ipath_read_ureg32 - read 32-bit virtualized per-port register |
| 934 | * @dd: device |
| 935 | * @regno: register number |
| 936 | * @port: port number |
| 937 | * |
| 938 | * Return the contents of a register that is virtualized to be per port. |
Bryan O'Sullivan | 685f97e | 2006-07-01 04:35:53 -0700 | [diff] [blame] | 939 | * Returns -1 on errors (not distinguishable from valid contents at |
| 940 | * runtime; we may add a separate error variable at some point). |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 941 | */ |
| 942 | static inline u32 ipath_read_ureg32(const struct ipath_devdata *dd, |
| 943 | ipath_ureg regno, int port) |
| 944 | { |
Bryan O'Sullivan | c71c30d | 2006-04-24 14:23:03 -0700 | [diff] [blame] | 945 | if (!dd->ipath_kregbase || !(dd->ipath_flags & IPATH_PRESENT)) |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 946 | return 0; |
| 947 | |
| 948 | return readl(regno + (u64 __iomem *) |
| 949 | (dd->ipath_uregbase + |
| 950 | (char __iomem *)dd->ipath_kregbase + |
Ralph Campbell | a18e26a | 2008-01-06 21:02:34 -0800 | [diff] [blame] | 951 | dd->ipath_ureg_align * port)); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 952 | } |
| 953 | |
| 954 | /** |
| 955 | * ipath_write_ureg - write 32-bit virtualized per-port register |
| 956 | * @dd: device |
| 957 | * @regno: register number |
| 958 | * @value: value |
| 959 | * @port: port |
| 960 | * |
| 961 | * Write the contents of a register that is virtualized to be per port. |
| 962 | */ |
| 963 | static inline void ipath_write_ureg(const struct ipath_devdata *dd, |
| 964 | ipath_ureg regno, u64 value, int port) |
| 965 | { |
| 966 | u64 __iomem *ubase = (u64 __iomem *) |
| 967 | (dd->ipath_uregbase + (char __iomem *) dd->ipath_kregbase + |
Ralph Campbell | a18e26a | 2008-01-06 21:02:34 -0800 | [diff] [blame] | 968 | dd->ipath_ureg_align * port); |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 969 | if (dd->ipath_kregbase) |
| 970 | writeq(value, &ubase[regno]); |
| 971 | } |
| 972 | |
| 973 | static inline u32 ipath_read_kreg32(const struct ipath_devdata *dd, |
| 974 | ipath_kreg regno) |
| 975 | { |
Bryan O'Sullivan | c71c30d | 2006-04-24 14:23:03 -0700 | [diff] [blame] | 976 | if (!dd->ipath_kregbase || !(dd->ipath_flags & IPATH_PRESENT)) |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 977 | return -1; |
| 978 | return readl((u32 __iomem *) & dd->ipath_kregbase[regno]); |
| 979 | } |
| 980 | |
| 981 | static inline u64 ipath_read_kreg64(const struct ipath_devdata *dd, |
| 982 | ipath_kreg regno) |
| 983 | { |
Bryan O'Sullivan | c71c30d | 2006-04-24 14:23:03 -0700 | [diff] [blame] | 984 | if (!dd->ipath_kregbase || !(dd->ipath_flags & IPATH_PRESENT)) |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 985 | return -1; |
| 986 | |
| 987 | return readq(&dd->ipath_kregbase[regno]); |
| 988 | } |
| 989 | |
| 990 | static inline void ipath_write_kreg(const struct ipath_devdata *dd, |
| 991 | ipath_kreg regno, u64 value) |
| 992 | { |
| 993 | if (dd->ipath_kregbase) |
| 994 | writeq(value, &dd->ipath_kregbase[regno]); |
| 995 | } |
| 996 | |
| 997 | static inline u64 ipath_read_creg(const struct ipath_devdata *dd, |
| 998 | ipath_sreg regno) |
| 999 | { |
Bryan O'Sullivan | c71c30d | 2006-04-24 14:23:03 -0700 | [diff] [blame] | 1000 | if (!dd->ipath_kregbase || !(dd->ipath_flags & IPATH_PRESENT)) |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 1001 | return 0; |
| 1002 | |
| 1003 | return readq(regno + (u64 __iomem *) |
| 1004 | (dd->ipath_cregbase + |
| 1005 | (char __iomem *)dd->ipath_kregbase)); |
| 1006 | } |
| 1007 | |
| 1008 | static inline u32 ipath_read_creg32(const struct ipath_devdata *dd, |
| 1009 | ipath_sreg regno) |
| 1010 | { |
Bryan O'Sullivan | c71c30d | 2006-04-24 14:23:03 -0700 | [diff] [blame] | 1011 | if (!dd->ipath_kregbase || !(dd->ipath_flags & IPATH_PRESENT)) |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 1012 | return 0; |
| 1013 | return readl(regno + (u64 __iomem *) |
| 1014 | (dd->ipath_cregbase + |
| 1015 | (char __iomem *)dd->ipath_kregbase)); |
| 1016 | } |
| 1017 | |
Ralph Campbell | 6c719ca | 2008-01-06 21:02:33 -0800 | [diff] [blame] | 1018 | static inline void ipath_write_creg(const struct ipath_devdata *dd, |
| 1019 | ipath_creg regno, u64 value) |
| 1020 | { |
| 1021 | if (dd->ipath_kregbase) |
| 1022 | writeq(value, regno + (u64 __iomem *) |
| 1023 | (dd->ipath_cregbase + |
| 1024 | (char __iomem *)dd->ipath_kregbase)); |
| 1025 | } |
| 1026 | |
Ralph Campbell | c59a80a | 2007-12-20 02:43:23 -0800 | [diff] [blame] | 1027 | static inline void ipath_clear_rcvhdrtail(const struct ipath_portdata *pd) |
| 1028 | { |
| 1029 | *((u64 *) pd->port_rcvhdrtail_kvaddr) = 0ULL; |
| 1030 | } |
| 1031 | |
| 1032 | static inline u32 ipath_get_rcvhdrtail(const struct ipath_portdata *pd) |
| 1033 | { |
| 1034 | return (u32) le64_to_cpu(*((volatile __le64 *) |
| 1035 | pd->port_rcvhdrtail_kvaddr)); |
| 1036 | } |
| 1037 | |
Ralph Campbell | 9355fb6 | 2008-04-16 21:09:29 -0700 | [diff] [blame^] | 1038 | static inline u32 ipath_get_hdrqtail(const struct ipath_portdata *pd) |
| 1039 | { |
| 1040 | const struct ipath_devdata *dd = pd->port_dd; |
| 1041 | u32 hdrqtail; |
| 1042 | |
| 1043 | if (dd->ipath_flags & IPATH_NODMA_RTAIL) { |
| 1044 | __le32 *rhf_addr; |
| 1045 | u32 seq; |
| 1046 | |
| 1047 | rhf_addr = (__le32 *) pd->port_rcvhdrq + |
| 1048 | pd->port_head + dd->ipath_rhf_offset; |
| 1049 | seq = ipath_hdrget_seq(rhf_addr); |
| 1050 | hdrqtail = pd->port_head; |
| 1051 | if (seq == pd->port_seq_cnt) |
| 1052 | hdrqtail++; |
| 1053 | } else |
| 1054 | hdrqtail = ipath_get_rcvhdrtail(pd); |
| 1055 | |
| 1056 | return hdrqtail; |
| 1057 | } |
| 1058 | |
Arthur Jones | 7da0498 | 2008-01-06 21:12:38 -0800 | [diff] [blame] | 1059 | static inline u64 ipath_read_ireg(const struct ipath_devdata *dd, ipath_kreg r) |
| 1060 | { |
| 1061 | return (dd->ipath_flags & IPATH_INTREG_64) ? |
| 1062 | ipath_read_kreg64(dd, r) : ipath_read_kreg32(dd, r); |
| 1063 | } |
| 1064 | |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 1065 | /* |
Dave Olson | c4bce80 | 2008-01-08 02:36:46 -0800 | [diff] [blame] | 1066 | * from contents of IBCStatus (or a saved copy), return linkstate |
| 1067 | * Report ACTIVE_DEFER as ACTIVE, because we treat them the same |
| 1068 | * everywhere, anyway (and should be, for almost all purposes). |
| 1069 | */ |
| 1070 | static inline u32 ipath_ib_linkstate(struct ipath_devdata *dd, u64 ibcs) |
| 1071 | { |
| 1072 | u32 state = (u32)(ibcs >> dd->ibcs_ls_shift) & |
| 1073 | INFINIPATH_IBCS_LINKSTATE_MASK; |
| 1074 | if (state == INFINIPATH_IBCS_L_STATE_ACT_DEFER) |
| 1075 | state = INFINIPATH_IBCS_L_STATE_ACTIVE; |
| 1076 | return state; |
| 1077 | } |
| 1078 | |
| 1079 | /* from contents of IBCStatus (or a saved copy), return linktrainingstate */ |
| 1080 | static inline u32 ipath_ib_linktrstate(struct ipath_devdata *dd, u64 ibcs) |
| 1081 | { |
| 1082 | return (u32)(ibcs >> INFINIPATH_IBCS_LINKTRAININGSTATE_SHIFT) & |
| 1083 | dd->ibcs_lts_mask; |
| 1084 | } |
| 1085 | |
| 1086 | /* |
John Gregor | 58411d1 | 2008-04-16 21:09:24 -0700 | [diff] [blame] | 1087 | * from contents of IBCStatus (or a saved copy), return logical link state |
| 1088 | * combination of link state and linktraining state (down, active, init, |
| 1089 | * arm, etc. |
| 1090 | */ |
| 1091 | static inline u32 ipath_ib_state(struct ipath_devdata *dd, u64 ibcs) |
| 1092 | { |
| 1093 | u32 ibs; |
| 1094 | ibs = (u32)(ibcs >> INFINIPATH_IBCS_LINKTRAININGSTATE_SHIFT) & |
| 1095 | dd->ibcs_lts_mask; |
| 1096 | ibs |= (u32)(ibcs & |
| 1097 | (INFINIPATH_IBCS_LINKSTATE_MASK << dd->ibcs_ls_shift)); |
| 1098 | return ibs; |
| 1099 | } |
| 1100 | |
| 1101 | /* |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 1102 | * sysfs interface. |
| 1103 | */ |
| 1104 | |
| 1105 | struct device_driver; |
| 1106 | |
Bryan O'Sullivan | b55f4f0 | 2006-08-25 11:24:33 -0700 | [diff] [blame] | 1107 | extern const char ib_ipath_version[]; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 1108 | |
Greg Kroah-Hartman | 23b9c1a | 2007-12-04 22:53:16 -0800 | [diff] [blame] | 1109 | extern struct attribute_group *ipath_driver_attr_groups[]; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 1110 | |
| 1111 | int ipath_device_create_group(struct device *, struct ipath_devdata *); |
| 1112 | void ipath_device_remove_group(struct device *, struct ipath_devdata *); |
| 1113 | int ipath_expose_reset(struct device *); |
| 1114 | |
| 1115 | int ipath_init_ipathfs(void); |
| 1116 | void ipath_exit_ipathfs(void); |
| 1117 | int ipathfs_add_device(struct ipath_devdata *); |
| 1118 | int ipathfs_remove_device(struct ipath_devdata *); |
| 1119 | |
| 1120 | /* |
Bryan O'Sullivan | 1fd3b40 | 2006-09-28 09:00:13 -0700 | [diff] [blame] | 1121 | * dma_addr wrappers - all 0's invalid for hw |
| 1122 | */ |
| 1123 | dma_addr_t ipath_map_page(struct pci_dev *, struct page *, unsigned long, |
| 1124 | size_t, int); |
| 1125 | dma_addr_t ipath_map_single(struct pci_dev *, void *, size_t, int); |
| 1126 | |
| 1127 | /* |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 1128 | * Flush write combining store buffers (if present) and perform a write |
| 1129 | * barrier. |
| 1130 | */ |
| 1131 | #if defined(CONFIG_X86_64) |
| 1132 | #define ipath_flush_wc() asm volatile("sfence" ::: "memory") |
| 1133 | #else |
| 1134 | #define ipath_flush_wc() wmb() |
| 1135 | #endif |
| 1136 | |
| 1137 | extern unsigned ipath_debug; /* debugging bit mask */ |
Dave Olson | 72708a0 | 2008-04-16 21:09:25 -0700 | [diff] [blame] | 1138 | extern unsigned ipath_linkrecovery; |
Dave Olson | 826d801 | 2008-04-16 21:01:12 -0700 | [diff] [blame] | 1139 | extern unsigned ipath_mtu4096; |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 1140 | |
Bryan O'Sullivan | 9783ab4 | 2007-03-15 14:45:07 -0700 | [diff] [blame] | 1141 | #define IPATH_MAX_PARITY_ATTEMPTS 10000 /* max times to try recovery */ |
| 1142 | |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 1143 | const char *ipath_get_unit_name(int unit); |
| 1144 | |
| 1145 | extern struct mutex ipath_mutex; |
| 1146 | |
Bryan O'Sullivan | b55f4f0 | 2006-08-25 11:24:33 -0700 | [diff] [blame] | 1147 | #define IPATH_DRV_NAME "ib_ipath" |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 1148 | #define IPATH_MAJOR 233 |
Bryan O'Sullivan | a2acb2f | 2006-07-01 04:35:52 -0700 | [diff] [blame] | 1149 | #define IPATH_USER_MINOR_BASE 0 |
Bryan O'Sullivan | 98341f2 | 2006-08-25 11:24:36 -0700 | [diff] [blame] | 1150 | #define IPATH_DIAGPKT_MINOR 127 |
Bryan O'Sullivan | a2acb2f | 2006-07-01 04:35:52 -0700 | [diff] [blame] | 1151 | #define IPATH_DIAG_MINOR_BASE 129 |
| 1152 | #define IPATH_NMINORS 255 |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 1153 | |
| 1154 | #define ipath_dev_err(dd,fmt,...) \ |
| 1155 | do { \ |
| 1156 | const struct ipath_devdata *__dd = (dd); \ |
| 1157 | if (__dd->pcidev) \ |
| 1158 | dev_err(&__dd->pcidev->dev, "%s: " fmt, \ |
| 1159 | ipath_get_unit_name(__dd->ipath_unit), \ |
| 1160 | ##__VA_ARGS__); \ |
| 1161 | else \ |
| 1162 | printk(KERN_ERR IPATH_DRV_NAME ": %s: " fmt, \ |
| 1163 | ipath_get_unit_name(__dd->ipath_unit), \ |
| 1164 | ##__VA_ARGS__); \ |
| 1165 | } while (0) |
| 1166 | |
| 1167 | #if _IPATH_DEBUGGING |
| 1168 | |
| 1169 | # define __IPATH_DBG_WHICH(which,fmt,...) \ |
| 1170 | do { \ |
Ralph Campbell | 2ba3f56 | 2008-04-16 21:09:29 -0700 | [diff] [blame] | 1171 | if (unlikely(ipath_debug & (which))) \ |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 1172 | printk(KERN_DEBUG IPATH_DRV_NAME ": %s: " fmt, \ |
| 1173 | __func__,##__VA_ARGS__); \ |
| 1174 | } while(0) |
| 1175 | |
| 1176 | # define ipath_dbg(fmt,...) \ |
| 1177 | __IPATH_DBG_WHICH(__IPATH_DBG,fmt,##__VA_ARGS__) |
| 1178 | # define ipath_cdbg(which,fmt,...) \ |
| 1179 | __IPATH_DBG_WHICH(__IPATH_##which##DBG,fmt,##__VA_ARGS__) |
| 1180 | |
| 1181 | #else /* ! _IPATH_DEBUGGING */ |
| 1182 | |
| 1183 | # define ipath_dbg(fmt,...) |
| 1184 | # define ipath_cdbg(which,fmt,...) |
| 1185 | |
| 1186 | #endif /* _IPATH_DEBUGGING */ |
| 1187 | |
Bryan O'Sullivan | 8d588f8 | 2006-09-28 09:00:08 -0700 | [diff] [blame] | 1188 | /* |
| 1189 | * this is used for formatting hw error messages... |
| 1190 | */ |
| 1191 | struct ipath_hwerror_msgs { |
| 1192 | u64 mask; |
| 1193 | const char *msg; |
| 1194 | }; |
| 1195 | |
| 1196 | #define INFINIPATH_HWE_MSG(a, b) { .mask = INFINIPATH_HWE_##a, .msg = b } |
| 1197 | |
| 1198 | /* in ipath_intr.c... */ |
| 1199 | void ipath_format_hwerrors(u64 hwerrs, |
| 1200 | const struct ipath_hwerror_msgs *hwerrmsgs, |
| 1201 | size_t nhwerrmsgs, |
| 1202 | char *msg, size_t lmsg); |
| 1203 | |
Bryan O'Sullivan | d41d3ae | 2006-03-29 15:23:25 -0800 | [diff] [blame] | 1204 | #endif /* _IPATH_KERNEL_H */ |