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Commit | Line | Data |
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1da177e4 | 1 | /* |
fa90c54f | 2 | * QLogic Fibre Channel HBA Driver |
07e264b7 | 3 | * Copyright (c) 2003-2011 QLogic Corporation |
1da177e4 | 4 | * |
fa90c54f | 5 | * See LICENSE.qla2xxx for copyright and licensing details. |
1da177e4 LT |
6 | */ |
7 | ||
1da177e4 LT |
8 | /* |
9 | * qla2x00_debounce_register | |
10 | * Debounce register. | |
11 | * | |
12 | * Input: | |
13 | * port = register address. | |
14 | * | |
15 | * Returns: | |
16 | * register value. | |
17 | */ | |
18 | static __inline__ uint16_t | |
fa2a1ce5 | 19 | qla2x00_debounce_register(volatile uint16_t __iomem *addr) |
1da177e4 LT |
20 | { |
21 | volatile uint16_t first; | |
22 | volatile uint16_t second; | |
23 | ||
24 | do { | |
25 | first = RD_REG_WORD(addr); | |
26 | barrier(); | |
27 | cpu_relax(); | |
28 | second = RD_REG_WORD(addr); | |
29 | } while (first != second); | |
30 | ||
31 | return (first); | |
32 | } | |
33 | ||
fa2a1ce5 | 34 | static inline void |
e315cd28 | 35 | qla2x00_poll(struct rsp_que *rsp) |
1da177e4 | 36 | { |
d2ba5675 | 37 | unsigned long flags; |
e315cd28 | 38 | struct qla_hw_data *ha = rsp->hw; |
d2ba5675 | 39 | local_irq_save(flags); |
a9083016 GM |
40 | if (IS_QLA82XX(ha)) |
41 | qla82xx_poll(0, rsp); | |
42 | else | |
43 | ha->isp_ops->intr_handler(0, rsp); | |
d2ba5675 | 44 | local_irq_restore(flags); |
1da177e4 LT |
45 | } |
46 | ||
2b6c0cee AV |
47 | static inline uint8_t * |
48 | host_to_fcp_swap(uint8_t *fcp, uint32_t bsize) | |
49 | { | |
50 | uint32_t *ifcp = (uint32_t *) fcp; | |
51 | uint32_t *ofcp = (uint32_t *) fcp; | |
52 | uint32_t iter = bsize >> 2; | |
53 | ||
54 | for (; iter ; iter--) | |
55 | *ofcp++ = swab32(*ifcp++); | |
56 | ||
57 | return fcp; | |
58 | } | |
3d71644c | 59 | |
3d71644c | 60 | static inline int |
e315cd28 | 61 | qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id) |
3d71644c | 62 | { |
e315cd28 | 63 | struct qla_hw_data *ha = vha->hw; |
e428924c | 64 | if (IS_FWI2_CAPABLE(ha)) |
3d71644c AV |
65 | return (loop_id > NPH_LAST_HANDLE); |
66 | ||
e315cd28 | 67 | return ((loop_id > ha->max_loop_id && loop_id < SNS_FIRST_LOOP_ID) || |
3d71644c | 68 | loop_id == MANAGEMENT_SERVER || loop_id == BROADCAST); |
17d98630 | 69 | } |
bad75002 AE |
70 | |
71 | static inline void | |
72 | qla2x00_clean_dsd_pool(struct qla_hw_data *ha, srb_t *sp) | |
73 | { | |
74 | struct dsd_dma *dsd_ptr, *tdsd_ptr; | |
75 | ||
76 | /* clean up allocated prev pool */ | |
77 | list_for_each_entry_safe(dsd_ptr, tdsd_ptr, | |
78 | &((struct crc_context *)sp->ctx)->dsd_list, list) { | |
79 | dma_pool_free(ha->dl_dma_pool, dsd_ptr->dsd_addr, | |
80 | dsd_ptr->dsd_list_dma); | |
81 | list_del(&dsd_ptr->list); | |
82 | kfree(dsd_ptr); | |
83 | } | |
84 | INIT_LIST_HEAD(&((struct crc_context *)sp->ctx)->dsd_list); | |
85 | } | |
ec426e10 CD |
86 | |
87 | static inline void | |
88 | qla2x00_set_fcport_state(fc_port_t *fcport, int state) | |
89 | { | |
90 | int old_state; | |
91 | ||
92 | old_state = atomic_read(&fcport->state); | |
93 | atomic_set(&fcport->state, state); | |
94 | ||
95 | /* Don't print state transitions during initial allocation of fcport */ | |
96 | if (old_state && old_state != state) { | |
7c3df132 SK |
97 | ql_dbg(ql_dbg_disc, fcport->vha, 0x207d, |
98 | "FCPort state transitioned from %s to %s - " | |
99 | "portid=%02x%02x%02x.\n", | |
ec426e10 CD |
100 | port_state_str[old_state], port_state_str[state], |
101 | fcport->d_id.b.domain, fcport->d_id.b.area, | |
7c3df132 | 102 | fcport->d_id.b.al_pa); |
ec426e10 CD |
103 | } |
104 | } | |
8cb2049c AE |
105 | |
106 | static inline int | |
107 | qla2x00_hba_err_chk_enabled(unsigned char op) | |
108 | { | |
109 | switch (op) { | |
110 | case SCSI_PROT_READ_STRIP: | |
111 | case SCSI_PROT_WRITE_INSERT: | |
112 | if (ql2xenablehba_err_chk >= 1) | |
113 | return 1; | |
114 | break; | |
115 | case SCSI_PROT_READ_PASS: | |
116 | case SCSI_PROT_WRITE_PASS: | |
117 | if (ql2xenablehba_err_chk >= 2) | |
118 | return 1; | |
119 | break; | |
120 | case SCSI_PROT_READ_INSERT: | |
121 | case SCSI_PROT_WRITE_STRIP: | |
122 | return 1; | |
123 | } | |
124 | return 0; | |
125 | } |