drivers/infiniband/hw/qib/qib_7220.h

   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
  46 struct 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         int irq;
  71         u8 presets_needed;
  72         u8 relock_timer_active;
  73         char emsgbuf[128];
  74         char sdmamsgbuf[192];
  75         char bitsmsgbuf[64];
  76         struct timer_list relock_timer;
  77         unsigned int relock_interval; /* in jiffies */
  78 };
  79
  80 struct 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  */
 110 int qib_sd7220_presets(struct qib_devdata *dd);
 111 int qib_sd7220_init(struct qib_devdata *dd);
 112 void 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
 120 static 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
 128 static 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
 137 static 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
 144 void set_7220_relock_poll(struct qib_devdata *, int);
 145 void shutdown_7220_relock_poll(struct qib_devdata *);
 146 void toggle_7220_rclkrls(struct qib_devdata *);
 147
 148
 149 #endif /* _QIB_7220_H */