1 /******************************************************************************
2 
3   Copyright (c) 2013-2018, Intel Corporation
4   All rights reserved.
5 
6   Redistribution and use in source and binary forms, with or without
7   modification, are permitted provided that the following conditions are met:
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31 
32 ******************************************************************************/
33 /*$FreeBSD$*/
34 
35 #ifndef _I40E_ADMINQ_H_
36 #define _I40E_ADMINQ_H_
37 
38 #include "i40e_osdep.h"
39 #include "i40e_status.h"
40 #include "i40e_adminq_cmd.h"
41 
42 #define I40E_ADMINQ_DESC(R, i)   \
43 	(&(((struct i40e_aq_desc *)((R).desc_buf.va))[i]))
44 
45 #define I40E_ADMINQ_DESC_ALIGNMENT 4096
46 
47 struct i40e_adminq_ring {
48 	struct i40e_virt_mem dma_head;	/* space for dma structures */
49 	struct i40e_dma_mem desc_buf;	/* descriptor ring memory */
50 	struct i40e_virt_mem cmd_buf;	/* command buffer memory */
51 
52 	union {
53 		struct i40e_dma_mem *asq_bi;
54 		struct i40e_dma_mem *arq_bi;
55 	} r;
56 
57 	u16 count;		/* Number of descriptors */
58 	u16 rx_buf_len;		/* Admin Receive Queue buffer length */
59 
60 	/* used for interrupt processing */
61 	u16 next_to_use;
62 	u16 next_to_clean;
63 
64 	/* used for queue tracking */
65 	u32 head;
66 	u32 tail;
67 	u32 len;
68 	u32 bah;
69 	u32 bal;
70 };
71 
72 /* ASQ transaction details */
73 struct i40e_asq_cmd_details {
74 	void *callback; /* cast from type I40E_ADMINQ_CALLBACK */
75 	u64 cookie;
76 	u16 flags_ena;
77 	u16 flags_dis;
78 	bool async;
79 	bool postpone;
80 	struct i40e_aq_desc *wb_desc;
81 };
82 
83 #define I40E_ADMINQ_DETAILS(R, i)   \
84 	(&(((struct i40e_asq_cmd_details *)((R).cmd_buf.va))[i]))
85 
86 /* ARQ event information */
87 struct i40e_arq_event_info {
88 	struct i40e_aq_desc desc;
89 	u16 msg_len;
90 	u16 buf_len;
91 	u8 *msg_buf;
92 };
93 
94 /* Admin Queue information */
95 struct i40e_adminq_info {
96 	struct i40e_adminq_ring arq;    /* receive queue */
97 	struct i40e_adminq_ring asq;    /* send queue */
98 	u32 asq_cmd_timeout;            /* send queue cmd write back timeout*/
99 	u16 num_arq_entries;            /* receive queue depth */
100 	u16 num_asq_entries;            /* send queue depth */
101 	u16 arq_buf_size;               /* receive queue buffer size */
102 	u16 asq_buf_size;               /* send queue buffer size */
103 	u16 fw_maj_ver;                 /* firmware major version */
104 	u16 fw_min_ver;                 /* firmware minor version */
105 	u32 fw_build;                   /* firmware build number */
106 	u16 api_maj_ver;                /* api major version */
107 	u16 api_min_ver;                /* api minor version */
108 
109 	struct i40e_spinlock asq_spinlock; /* Send queue spinlock */
110 	struct i40e_spinlock arq_spinlock; /* Receive queue spinlock */
111 
112 	/* last status values on send and receive queues */
113 	enum i40e_admin_queue_err asq_last_status;
114 	enum i40e_admin_queue_err arq_last_status;
115 };
116 
117 /**
118  * i40e_aq_rc_to_posix - convert errors to user-land codes
119  * aq_ret: AdminQ handler error code can override aq_rc
120  * aq_rc: AdminQ firmware error code to convert
121  **/
i40e_aq_rc_to_posix(int aq_ret,int aq_rc)122 static INLINE int i40e_aq_rc_to_posix(int aq_ret, int aq_rc)
123 {
124 	int aq_to_posix[] = {
125 		0,           /* I40E_AQ_RC_OK */
126 		-EPERM,      /* I40E_AQ_RC_EPERM */
127 		-ENOENT,     /* I40E_AQ_RC_ENOENT */
128 		-ESRCH,      /* I40E_AQ_RC_ESRCH */
129 		-EINTR,      /* I40E_AQ_RC_EINTR */
130 		-EIO,        /* I40E_AQ_RC_EIO */
131 		-ENXIO,      /* I40E_AQ_RC_ENXIO */
132 		-E2BIG,      /* I40E_AQ_RC_E2BIG */
133 		-EAGAIN,     /* I40E_AQ_RC_EAGAIN */
134 		-ENOMEM,     /* I40E_AQ_RC_ENOMEM */
135 		-EACCES,     /* I40E_AQ_RC_EACCES */
136 		-EFAULT,     /* I40E_AQ_RC_EFAULT */
137 		-EBUSY,      /* I40E_AQ_RC_EBUSY */
138 		-EEXIST,     /* I40E_AQ_RC_EEXIST */
139 		-EINVAL,     /* I40E_AQ_RC_EINVAL */
140 		-ENOTTY,     /* I40E_AQ_RC_ENOTTY */
141 		-ENOSPC,     /* I40E_AQ_RC_ENOSPC */
142 		-ENOSYS,     /* I40E_AQ_RC_ENOSYS */
143 		-ERANGE,     /* I40E_AQ_RC_ERANGE */
144 		-EPIPE,      /* I40E_AQ_RC_EFLUSHED */
145 		-ESPIPE,     /* I40E_AQ_RC_BAD_ADDR */
146 		-EROFS,      /* I40E_AQ_RC_EMODE */
147 		-EFBIG,      /* I40E_AQ_RC_EFBIG */
148 	};
149 
150 	/* aq_rc is invalid if AQ timed out */
151 	if (aq_ret == I40E_ERR_ADMIN_QUEUE_TIMEOUT)
152 		return -EAGAIN;
153 
154 	if (!((u32)aq_rc < (sizeof(aq_to_posix) / sizeof((aq_to_posix)[0]))))
155 		return -ERANGE;
156 
157 	return aq_to_posix[aq_rc];
158 }
159 
160 /* general information */
161 #define I40E_AQ_LARGE_BUF	512
162 #define I40E_ASQ_CMD_TIMEOUT	250000  /* usecs */
163 
164 void i40e_fill_default_direct_cmd_desc(struct i40e_aq_desc *desc,
165 				       u16 opcode);
166 
167 #endif /* _I40E_ADMINQ_H_ */
168