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 */
150