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dd4969a8 JG |
1 | /* |
2 | mv_sas.h - Marvell 88SE6440 SAS/SATA support | |
3 | ||
4 | Copyright 2007 Red Hat, Inc. | |
5 | Copyright 2008 Marvell. <kewei@marvell.com> | |
6 | ||
7 | This program is free software; you can redistribute it and/or | |
8 | modify it under the terms of the GNU General Public License as | |
9 | published by the Free Software Foundation; either version 2, | |
10 | or (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty | |
14 | of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
15 | See the GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public | |
18 | License along with this program; see the file COPYING. If not, | |
19 | write to the Free Software Foundation, 675 Mass Ave, Cambridge, | |
20 | MA 02139, USA. | |
21 | ||
22 | */ | |
23 | ||
24 | #ifndef _MV_SAS_H_ | |
25 | #define _MV_SAS_H_ | |
26 | ||
27 | #include <linux/kernel.h> | |
28 | #include <linux/module.h> | |
29 | #include <linux/spinlock.h> | |
30 | #include <linux/delay.h> | |
31 | #include <linux/types.h> | |
32 | #include <linux/ctype.h> | |
33 | #include <linux/dma-mapping.h> | |
34 | #include <linux/pci.h> | |
35 | #include <linux/platform_device.h> | |
36 | #include <linux/interrupt.h> | |
37 | #include <linux/irq.h> | |
38 | #include <linux/vmalloc.h> | |
39 | #include <scsi/libsas.h> | |
40 | #include <scsi/scsi_tcq.h> | |
41 | #include <scsi/sas_ata.h> | |
42 | #include <linux/version.h> | |
43 | #include "mv_defs.h" | |
44 | ||
45 | #define DRV_NAME "mvsas" | |
46 | #define DRV_VERSION "0.5.2" | |
47 | #define _MV_DUMP 0 | |
48 | #define MVS_DISABLE_NVRAM | |
49 | #define MVS_DISABLE_MSI | |
50 | ||
51 | #define MVS_ID_NOT_MAPPED 0x7f | |
52 | #define MVS_CHIP_SLOT_SZ (1U << mvi->chip->slot_width) | |
53 | ||
54 | #define for_each_phy(__lseq_mask, __mc, __lseq, __rest) \ | |
55 | for ((__mc) = (__lseq_mask), (__lseq) = 0; \ | |
56 | (__mc) != 0 && __rest; \ | |
57 | (++__lseq), (__mc) >>= 1) | |
58 | ||
59 | struct mvs_chip_info { | |
60 | u32 n_phy; | |
61 | u32 srs_sz; | |
62 | u32 slot_width; | |
63 | }; | |
64 | ||
65 | struct mvs_err_info { | |
66 | __le32 flags; | |
67 | __le32 flags2; | |
68 | }; | |
69 | ||
70 | struct mvs_cmd_hdr { | |
71 | __le32 flags; /* PRD tbl len; SAS, SATA ctl */ | |
72 | __le32 lens; /* cmd, max resp frame len */ | |
73 | __le32 tags; /* targ port xfer tag; tag */ | |
74 | __le32 data_len; /* data xfer len */ | |
75 | __le64 cmd_tbl; /* command table address */ | |
76 | __le64 open_frame; /* open addr frame address */ | |
77 | __le64 status_buf; /* status buffer address */ | |
78 | __le64 prd_tbl; /* PRD tbl address */ | |
79 | __le32 reserved[4]; | |
80 | }; | |
81 | ||
82 | struct mvs_port { | |
83 | struct asd_sas_port sas_port; | |
84 | u8 port_attached; | |
85 | u8 taskfileset; | |
86 | u8 wide_port_phymap; | |
87 | struct list_head list; | |
88 | }; | |
89 | ||
90 | struct mvs_phy { | |
91 | struct mvs_port *port; | |
92 | struct asd_sas_phy sas_phy; | |
93 | struct sas_identify identify; | |
94 | struct scsi_device *sdev; | |
95 | u64 dev_sas_addr; | |
96 | u64 att_dev_sas_addr; | |
97 | u32 att_dev_info; | |
98 | u32 dev_info; | |
99 | u32 phy_type; | |
100 | u32 phy_status; | |
101 | u32 irq_status; | |
102 | u32 frame_rcvd_size; | |
103 | u8 frame_rcvd[32]; | |
104 | u8 phy_attached; | |
105 | enum sas_linkrate minimum_linkrate; | |
106 | enum sas_linkrate maximum_linkrate; | |
107 | }; | |
108 | ||
109 | struct mvs_slot_info { | |
110 | struct list_head list; | |
111 | struct sas_task *task; | |
112 | u32 n_elem; | |
113 | u32 tx; | |
114 | ||
115 | /* DMA buffer for storing cmd tbl, open addr frame, status buffer, | |
116 | * and PRD table | |
117 | */ | |
118 | void *buf; | |
119 | dma_addr_t buf_dma; | |
120 | #if _MV_DUMP | |
121 | u32 cmd_size; | |
122 | #endif | |
123 | ||
124 | void *response; | |
125 | struct mvs_port *port; | |
126 | }; | |
127 | ||
128 | struct mvs_info { | |
129 | unsigned long flags; | |
130 | ||
131 | /* host-wide lock */ | |
132 | spinlock_t lock; | |
133 | ||
134 | /* our device */ | |
135 | struct pci_dev *pdev; | |
136 | ||
137 | /* enhanced mode registers */ | |
138 | void __iomem *regs; | |
139 | ||
140 | /* peripheral registers */ | |
141 | void __iomem *peri_regs; | |
142 | ||
143 | u8 sas_addr[SAS_ADDR_SIZE]; | |
144 | ||
145 | /* SCSI/SAS glue */ | |
146 | struct sas_ha_struct sas; | |
147 | struct Scsi_Host *shost; | |
148 | ||
149 | /* TX (delivery) DMA ring */ | |
150 | __le32 *tx; | |
151 | dma_addr_t tx_dma; | |
152 | ||
153 | /* cached next-producer idx */ | |
154 | u32 tx_prod; | |
155 | ||
156 | /* RX (completion) DMA ring */ | |
157 | __le32 *rx; | |
158 | dma_addr_t rx_dma; | |
159 | ||
160 | /* RX consumer idx */ | |
161 | u32 rx_cons; | |
162 | ||
163 | /* RX'd FIS area */ | |
164 | __le32 *rx_fis; | |
165 | dma_addr_t rx_fis_dma; | |
166 | ||
167 | /* DMA command header slots */ | |
168 | struct mvs_cmd_hdr *slot; | |
169 | dma_addr_t slot_dma; | |
170 | ||
171 | const struct mvs_chip_info *chip; | |
172 | ||
173 | u8 tags[MVS_SLOTS]; | |
174 | struct mvs_slot_info slot_info[MVS_SLOTS]; | |
175 | /* further per-slot information */ | |
176 | struct mvs_phy phy[MVS_MAX_PHYS]; | |
177 | struct mvs_port port[MVS_MAX_PHYS]; | |
178 | #ifdef MVS_USE_TASKLET | |
179 | struct tasklet_struct tasklet; | |
180 | #endif | |
181 | }; | |
182 | ||
183 | int mvs_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func, | |
184 | void *funcdata); | |
185 | int mvs_slave_configure(struct scsi_device *sdev); | |
186 | void mvs_scan_start(struct Scsi_Host *shost); | |
187 | int mvs_scan_finished(struct Scsi_Host *shost, unsigned long time); | |
188 | int mvs_task_exec(struct sas_task *task, const int num, gfp_t gfp_flags); | |
189 | int mvs_task_abort(struct sas_task *task); | |
190 | void mvs_port_formed(struct asd_sas_phy *sas_phy); | |
191 | int mvs_I_T_nexus_reset(struct domain_device *dev); | |
192 | void mvs_int_full(struct mvs_info *mvi); | |
193 | void mvs_tag_init(struct mvs_info *mvi); | |
194 | int mvs_nvram_read(struct mvs_info *mvi, u32 addr, void *buf, u32 buflen); | |
195 | int __devinit mvs_hw_init(struct mvs_info *mvi); | |
196 | void __devinit mvs_print_info(struct mvs_info *mvi); | |
197 | void mvs_hba_interrupt_enable(struct mvs_info *mvi); | |
198 | void mvs_hba_interrupt_disable(struct mvs_info *mvi); | |
199 | void mvs_detect_porttype(struct mvs_info *mvi, int i); | |
200 | u8 mvs_assign_reg_set(struct mvs_info *mvi, struct mvs_port *port); | |
201 | void mvs_enable_xmt(struct mvs_info *mvi, int PhyId); | |
202 | void __devinit mvs_phy_hacks(struct mvs_info *mvi); | |
203 | void mvs_free_reg_set(struct mvs_info *mvi, struct mvs_port *port); | |
204 | ||
205 | #endif |