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32 ******************************************************************************/
33 /*$FreeBSD$*/
34 
35 #ifndef _I40E_LAN_HMC_H_
36 #define _I40E_LAN_HMC_H_
37 
38 /* forward-declare the HW struct for the compiler */
39 struct i40e_hw;
40 
41 /* HMC element context information */
42 
43 /* Rx queue context data
44  *
45  * The sizes of the variables may be larger than needed due to crossing byte
46  * boundaries. If we do not have the width of the variable set to the correct
47  * size then we could end up shifting bits off the top of the variable when the
48  * variable is at the top of a byte and crosses over into the next byte.
49  */
50 struct i40e_hmc_obj_rxq {
51 	u16 head;
52 	u16 cpuid; /* bigger than needed, see above for reason */
53 	u64 base;
54 	u16 qlen;
55 #define I40E_RXQ_CTX_DBUFF_SHIFT 7
56 	u16 dbuff; /* bigger than needed, see above for reason */
57 #define I40E_RXQ_CTX_HBUFF_SHIFT 6
58 	u16 hbuff; /* bigger than needed, see above for reason */
59 	u8  dtype;
60 	u8  dsize;
61 	u8  crcstrip;
62 	u8  fc_ena;
63 	u8  l2tsel;
64 	u8  hsplit_0;
65 	u8  hsplit_1;
66 	u8  showiv;
67 	u32 rxmax; /* bigger than needed, see above for reason */
68 	u8  tphrdesc_ena;
69 	u8  tphwdesc_ena;
70 	u8  tphdata_ena;
71 	u8  tphhead_ena;
72 	u16 lrxqthresh; /* bigger than needed, see above for reason */
73 	u8  prefena;	/* NOTE: normally must be set to 1 at init */
74 };
75 
76 /* Tx queue context data
77 *
78 * The sizes of the variables may be larger than needed due to crossing byte
79 * boundaries. If we do not have the width of the variable set to the correct
80 * size then we could end up shifting bits off the top of the variable when the
81 * variable is at the top of a byte and crosses over into the next byte.
82 */
83 struct i40e_hmc_obj_txq {
84 	u16 head;
85 	u8  new_context;
86 	u64 base;
87 	u8  fc_ena;
88 	u8  timesync_ena;
89 	u8  fd_ena;
90 	u8  alt_vlan_ena;
91 	u16 thead_wb;
92 	u8  cpuid;
93 	u8  head_wb_ena;
94 	u16 qlen;
95 	u8  tphrdesc_ena;
96 	u8  tphrpacket_ena;
97 	u8  tphwdesc_ena;
98 	u64 head_wb_addr;
99 	u32 crc;
100 	u16 rdylist;
101 	u8  rdylist_act;
102 };
103 
104 /* for hsplit_0 field of Rx HMC context */
105 enum i40e_hmc_obj_rx_hsplit_0 {
106 	I40E_HMC_OBJ_RX_HSPLIT_0_NO_SPLIT      = 0,
107 	I40E_HMC_OBJ_RX_HSPLIT_0_SPLIT_L2      = 1,
108 	I40E_HMC_OBJ_RX_HSPLIT_0_SPLIT_IP      = 2,
109 	I40E_HMC_OBJ_RX_HSPLIT_0_SPLIT_TCP_UDP = 4,
110 	I40E_HMC_OBJ_RX_HSPLIT_0_SPLIT_SCTP    = 8,
111 };
112 
113 /* fcoe_cntx and fcoe_filt are for debugging purpose only */
114 struct i40e_hmc_obj_fcoe_cntx {
115 	u32 rsv[32];
116 };
117 
118 struct i40e_hmc_obj_fcoe_filt {
119 	u32 rsv[8];
120 };
121 
122 /* Context sizes for LAN objects */
123 enum i40e_hmc_lan_object_size {
124 	I40E_HMC_LAN_OBJ_SZ_8   = 0x3,
125 	I40E_HMC_LAN_OBJ_SZ_16  = 0x4,
126 	I40E_HMC_LAN_OBJ_SZ_32  = 0x5,
127 	I40E_HMC_LAN_OBJ_SZ_64  = 0x6,
128 	I40E_HMC_LAN_OBJ_SZ_128 = 0x7,
129 	I40E_HMC_LAN_OBJ_SZ_256 = 0x8,
130 	I40E_HMC_LAN_OBJ_SZ_512 = 0x9,
131 };
132 
133 #define I40E_HMC_L2OBJ_BASE_ALIGNMENT 512
134 #define I40E_HMC_OBJ_SIZE_TXQ         128
135 #define I40E_HMC_OBJ_SIZE_RXQ         32
136 #define I40E_HMC_OBJ_SIZE_FCOE_CNTX   64
137 #define I40E_HMC_OBJ_SIZE_FCOE_FILT   64
138 
139 enum i40e_hmc_lan_rsrc_type {
140 	I40E_HMC_LAN_FULL  = 0,
141 	I40E_HMC_LAN_TX    = 1,
142 	I40E_HMC_LAN_RX    = 2,
143 	I40E_HMC_FCOE_CTX  = 3,
144 	I40E_HMC_FCOE_FILT = 4,
145 	I40E_HMC_LAN_MAX   = 5
146 };
147 
148 enum i40e_hmc_model {
149 	I40E_HMC_MODEL_DIRECT_PREFERRED = 0,
150 	I40E_HMC_MODEL_DIRECT_ONLY      = 1,
151 	I40E_HMC_MODEL_PAGED_ONLY       = 2,
152 	I40E_HMC_MODEL_UNKNOWN,
153 };
154 
155 struct i40e_hmc_lan_create_obj_info {
156 	struct i40e_hmc_info *hmc_info;
157 	u32 rsrc_type;
158 	u32 start_idx;
159 	u32 count;
160 	enum i40e_sd_entry_type entry_type;
161 	u64 direct_mode_sz;
162 };
163 
164 struct i40e_hmc_lan_delete_obj_info {
165 	struct i40e_hmc_info *hmc_info;
166 	u32 rsrc_type;
167 	u32 start_idx;
168 	u32 count;
169 };
170 
171 enum i40e_status_code i40e_init_lan_hmc(struct i40e_hw *hw, u32 txq_num,
172 					u32 rxq_num, u32 fcoe_cntx_num,
173 					u32 fcoe_filt_num);
174 enum i40e_status_code i40e_configure_lan_hmc(struct i40e_hw *hw,
175 					     enum i40e_hmc_model model);
176 enum i40e_status_code i40e_shutdown_lan_hmc(struct i40e_hw *hw);
177 
178 u64 i40e_calculate_l2fpm_size(u32 txq_num, u32 rxq_num,
179 			      u32 fcoe_cntx_num, u32 fcoe_filt_num);
180 enum i40e_status_code i40e_get_lan_tx_queue_context(struct i40e_hw *hw,
181 						    u16 queue,
182 						    struct i40e_hmc_obj_txq *s);
183 enum i40e_status_code i40e_clear_lan_tx_queue_context(struct i40e_hw *hw,
184 						      u16 queue);
185 enum i40e_status_code i40e_set_lan_tx_queue_context(struct i40e_hw *hw,
186 						    u16 queue,
187 						    struct i40e_hmc_obj_txq *s);
188 enum i40e_status_code i40e_get_lan_rx_queue_context(struct i40e_hw *hw,
189 						    u16 queue,
190 						    struct i40e_hmc_obj_rxq *s);
191 enum i40e_status_code i40e_clear_lan_rx_queue_context(struct i40e_hw *hw,
192 						      u16 queue);
193 enum i40e_status_code i40e_set_lan_rx_queue_context(struct i40e_hw *hw,
194 						    u16 queue,
195 						    struct i40e_hmc_obj_rxq *s);
196 enum i40e_status_code i40e_create_lan_hmc_object(struct i40e_hw *hw,
197 				struct i40e_hmc_lan_create_obj_info *info);
198 enum i40e_status_code i40e_delete_lan_hmc_object(struct i40e_hw *hw,
199 				struct i40e_hmc_lan_delete_obj_info *info);
200 
201 #endif /* _I40E_LAN_HMC_H_ */
202