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33/*$FreeBSD: stable/11/sys/dev/ixl/i40e_adminq.h 349163 2019-06-18 00:08:02Z erj $*/
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
47struct 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 */
73struct 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 */
87struct 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 */
95struct 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 **/
122static 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
164void i40e_fill_default_direct_cmd_desc(struct i40e_aq_desc *desc,
165				       u16 opcode);
166
167#endif /* _I40E_ADMINQ_H_ */
168