LXR linux/drivers/infiniband/hw/qib/qib

   1#ifndef _QIB_7220_H
   2#define _QIB_7220_H
   3/*
   4 * Copyright (c) 2007, 2009, 2010 QLogic Corporation. All rights reserved.
   5 *
   6 * This software is available to you under a choice of one of two
   7 * licenses.  You may choose to be licensed under the terms of the GNU
   8 * General Public License (GPL) Version 2, available from the file
   9 * COPYING in the main directory of this source tree, or the
  10 * OpenIB.org BSD license below:
  11 *
  12 *     Redistribution and use in source and binary forms, with or
  13 *     without modification, are permitted provided that the following
  14 *     conditions are met:
  15 *
  16 *      - Redistributions of source code must retain the above
  17 *        copyright notice, this list of conditions and the following
  18 *        disclaimer.
  19 *
  20 *      - Redistributions in binary form must reproduce the above
  21 *        copyright notice, this list of conditions and the following
  22 *        disclaimer in the documentation and/or other materials
  23 *        provided with the distribution.
  24 *
  25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  32 * SOFTWARE.
  33 */
  34
  35/* grab register-defs auto-generated by HW */
  36#include "qib_7220_regs.h"
  37
  38/* The number of eager receive TIDs for context zero. */
  39#define IBA7220_KRCVEGRCNT      2048U
  40
  41#define IB_7220_LT_STATE_CFGRCVFCFG      0x09
  42#define IB_7220_LT_STATE_CFGWAITRMT      0x0a
  43#define IB_7220_LT_STATE_TXREVLANES      0x0d
  44#define IB_7220_LT_STATE_CFGENH          0x10
  45
  46struct qib_chip_specific {
  47        u64 __iomem *cregbase;
  48        u64 *cntrs;
  49        u64 *portcntrs;
  50        spinlock_t sdepb_lock; /* serdes EPB bus */
  51        spinlock_t rcvmod_lock; /* protect rcvctrl shadow changes */
  52        spinlock_t gpio_lock; /* RMW of shadows/regs for ExtCtrl and GPIO */
  53        u64 hwerrmask;
  54        u64 errormask;
  55        u64 gpio_out; /* shadow of kr_gpio_out, for rmw ops */
  56        u64 gpio_mask; /* shadow the gpio mask register */
  57        u64 extctrl; /* shadow the gpio output enable, etc... */
  58        u32 ncntrs;
  59        u32 nportcntrs;
  60        u32 cntrnamelen;
  61        u32 portcntrnamelen;
  62        u32 numctxts;
  63        u32 rcvegrcnt;
  64        u32 autoneg_tries;
  65        u32 serdes_first_init_done;
  66        u32 sdmabufcnt;
  67        u32 lastbuf_for_pio;
  68        u32 updthresh; /* current AvailUpdThld */
  69        u32 updthresh_dflt; /* default AvailUpdThld */
  70        u8 presets_needed;
  71        u8 relock_timer_active;
  72        char emsgbuf[128];
  73        char sdmamsgbuf[192];
  74        char bitsmsgbuf[64];
  75        struct timer_list relock_timer;
  76        unsigned int relock_interval; /* in jiffies */
  77        struct qib_devdata *dd;
  78};
  79
  80struct qib_chippport_specific {
  81        struct qib_pportdata pportdata;
  82        wait_queue_head_t autoneg_wait;
  83        struct delayed_work autoneg_work;
  84        struct timer_list chase_timer;
  85        /*
  86         * these 5 fields are used to establish deltas for IB symbol
  87         * errors and linkrecovery errors.  They can be reported on
  88         * some chips during link negotiation prior to INIT, and with
  89         * DDR when faking DDR negotiations with non-IBTA switches.
  90         * The chip counters are adjusted at driver unload if there is
  91         * a non-zero delta.
  92         */
  93        u64 ibdeltainprog;
  94        u64 ibsymdelta;
  95        u64 ibsymsnap;
  96        u64 iblnkerrdelta;
  97        u64 iblnkerrsnap;
  98        u64 ibcctrl; /* kr_ibcctrl shadow */
  99        u64 ibcddrctrl; /* kr_ibcddrctrl shadow */
 100        unsigned long chase_end;
 101        u32 last_delay_mult;
 102};
 103
 104/*
 105 * This header file provides the declarations and common definitions
 106 * for (mostly) manipulation of the SerDes blocks within the IBA7220.
 107 * the functions declared should only be called from within other
 108 * 7220-related files such as qib_iba7220.c or qib_sd7220.c.
 109 */
 110int qib_sd7220_presets(struct qib_devdata *dd);
 111int qib_sd7220_init(struct qib_devdata *dd);
 112void qib_sd7220_clr_ibpar(struct qib_devdata *);
 113/*
 114 * Below used for sdnum parameter, selecting one of the two sections
 115 * used for PCIe, or the single SerDes used for IB, which is the
 116 * only one currently used
 117 */
 118#define IB_7220_SERDES 2
 119
 120static inline u32 qib_read_kreg32(const struct qib_devdata *dd,
 121                                  const u16 regno)
 122{
 123        if (!dd->kregbase || !(dd->flags & QIB_PRESENT))
 124                return -1;
 125        return readl((u32 __iomem *)&dd->kregbase[regno]);
 126}
 127
 128static inline u64 qib_read_kreg64(const struct qib_devdata *dd,
 129                                  const u16 regno)
 130{
 131        if (!dd->kregbase || !(dd->flags & QIB_PRESENT))
 132                return -1;
 133
 134        return readq(&dd->kregbase[regno]);
 135}
 136
 137static inline void qib_write_kreg(const struct qib_devdata *dd,
 138                                  const u16 regno, u64 value)
 139{
 140        if (dd->kregbase)
 141                writeq(value, &dd->kregbase[regno]);
 142}
 143
 144void set_7220_relock_poll(struct qib_devdata *, int);
 145void shutdown_7220_relock_poll(struct qib_devdata *);
 146void toggle_7220_rclkrls(struct qib_devdata *);
 147
 148
 149#endif /* _QIB_7220_H */
 150