2 * Copyright (c) 2014, 2015 Netronome Systems, Inc.
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33 * vim:shiftwidth=8:noexpandtab
35 * Netronome network device driver: Control BAR layout
37 #ifndef _NFP_NET_CTRL_H_
38 #define _NFP_NET_CTRL_H_
41 * Configuration BAR size.
43 * The configuration BAR is 8K in size, but on the NFP6000, due to
44 * THB-350, 32k needs to be reserved.
47 #define NFP_NET_CFG_BAR_SZ (32 * 1024)
49 #define NFP_NET_CFG_BAR_SZ (8 * 1024)
52 /* Offset in Freelist buffer where packet starts on RX */
53 #define NFP_NET_RX_OFFSET 32
55 /* working with metadata api (NFD version > 3.0) */
56 #define NFP_NET_META_FIELD_SIZE 4
57 #define NFP_NET_META_FIELD_MASK ((1 << NFP_NET_META_FIELD_SIZE) - 1)
59 /* Prepend field types */
60 #define NFP_NET_META_HASH 1 /* next field carries hash type */
62 /* Hash type pre-pended when a RSS hash was computed */
63 #define NFP_NET_RSS_NONE 0
64 #define NFP_NET_RSS_IPV4 1
65 #define NFP_NET_RSS_IPV6 2
66 #define NFP_NET_RSS_IPV6_EX 3
67 #define NFP_NET_RSS_IPV4_TCP 4
68 #define NFP_NET_RSS_IPV6_TCP 5
69 #define NFP_NET_RSS_IPV6_EX_TCP 6
70 #define NFP_NET_RSS_IPV4_UDP 7
71 #define NFP_NET_RSS_IPV6_UDP 8
72 #define NFP_NET_RSS_IPV6_EX_UDP 9
75 * @NFP_NET_TXR_MAX: Maximum number of TX rings
76 * @NFP_NET_TXR_MASK: Mask for TX rings
77 * @NFP_NET_RXR_MAX: Maximum number of RX rings
78 * @NFP_NET_RXR_MASK: Mask for RX rings
80 #define NFP_NET_TXR_MAX 64
81 #define NFP_NET_TXR_MASK (NFP_NET_TXR_MAX - 1)
82 #define NFP_NET_RXR_MAX 64
83 #define NFP_NET_RXR_MASK (NFP_NET_RXR_MAX - 1)
86 * Read/Write config words (0x0000 - 0x002c)
87 * @NFP_NET_CFG_CTRL: Global control
88 * @NFP_NET_CFG_UPDATE: Indicate which fields are updated
89 * @NFP_NET_CFG_TXRS_ENABLE: Bitmask of enabled TX rings
90 * @NFP_NET_CFG_RXRS_ENABLE: Bitmask of enabled RX rings
91 * @NFP_NET_CFG_MTU: Set MTU size
92 * @NFP_NET_CFG_FLBUFSZ: Set freelist buffer size (must be larger than MTU)
93 * @NFP_NET_CFG_EXN: MSI-X table entry for exceptions
94 * @NFP_NET_CFG_LSC: MSI-X table entry for link state changes
95 * @NFP_NET_CFG_MACADDR: MAC address
98 * - define Error details in UPDATE
100 #define NFP_NET_CFG_CTRL 0x0000
101 #define NFP_NET_CFG_CTRL_ENABLE (0x1 << 0) /* Global enable */
102 #define NFP_NET_CFG_CTRL_PROMISC (0x1 << 1) /* Enable Promisc mode */
103 #define NFP_NET_CFG_CTRL_L2BC (0x1 << 2) /* Allow L2 Broadcast */
104 #define NFP_NET_CFG_CTRL_L2MC (0x1 << 3) /* Allow L2 Multicast */
105 #define NFP_NET_CFG_CTRL_RXCSUM (0x1 << 4) /* Enable RX Checksum */
106 #define NFP_NET_CFG_CTRL_TXCSUM (0x1 << 5) /* Enable TX Checksum */
107 #define NFP_NET_CFG_CTRL_RXVLAN (0x1 << 6) /* Enable VLAN strip */
108 #define NFP_NET_CFG_CTRL_TXVLAN (0x1 << 7) /* Enable VLAN insert */
109 #define NFP_NET_CFG_CTRL_SCATTER (0x1 << 8) /* Scatter DMA */
110 #define NFP_NET_CFG_CTRL_GATHER (0x1 << 9) /* Gather DMA */
111 #define NFP_NET_CFG_CTRL_LSO (0x1 << 10) /* LSO/TSO */
112 #define NFP_NET_CFG_CTRL_RINGCFG (0x1 << 16) /* Ring runtime changes */
113 #define NFP_NET_CFG_CTRL_RSS (0x1 << 17) /* RSS */
114 #define NFP_NET_CFG_CTRL_IRQMOD (0x1 << 18) /* Interrupt moderation */
115 #define NFP_NET_CFG_CTRL_RINGPRIO (0x1 << 19) /* Ring priorities */
116 #define NFP_NET_CFG_CTRL_MSIXAUTO (0x1 << 20) /* MSI-X auto-masking */
117 #define NFP_NET_CFG_CTRL_TXRWB (0x1 << 21) /* Write-back of TX ring*/
118 #define NFP_NET_CFG_CTRL_L2SWITCH (0x1 << 22) /* L2 Switch */
119 #define NFP_NET_CFG_CTRL_L2SWITCH_LOCAL (0x1 << 23) /* Switch to local */
120 #define NFP_NET_CFG_CTRL_VXLAN (0x1 << 24) /* Enable VXLAN */
121 #define NFP_NET_CFG_CTRL_NVGRE (0x1 << 25) /* Enable NVGRE */
122 #define NFP_NET_CFG_CTRL_MSIX_TX_OFF (0x1 << 26) /* Disable MSIX for TX */
123 #define NFP_NET_CFG_UPDATE 0x0004
124 #define NFP_NET_CFG_UPDATE_GEN (0x1 << 0) /* General update */
125 #define NFP_NET_CFG_UPDATE_RING (0x1 << 1) /* Ring config change */
126 #define NFP_NET_CFG_UPDATE_RSS (0x1 << 2) /* RSS config change */
127 #define NFP_NET_CFG_UPDATE_TXRPRIO (0x1 << 3) /* TX Ring prio change */
128 #define NFP_NET_CFG_UPDATE_RXRPRIO (0x1 << 4) /* RX Ring prio change */
129 #define NFP_NET_CFG_UPDATE_MSIX (0x1 << 5) /* MSI-X change */
130 #define NFP_NET_CFG_UPDATE_L2SWITCH (0x1 << 6) /* Switch changes */
131 #define NFP_NET_CFG_UPDATE_RESET (0x1 << 7) /* Update due to FLR */
132 #define NFP_NET_CFG_UPDATE_IRQMOD (0x1 << 8) /* IRQ mod change */
133 #define NFP_NET_CFG_UPDATE_VXLAN (0x1 << 9) /* VXLAN port change */
134 #define NFP_NET_CFG_UPDATE_ERR (0x1 << 31) /* A error occurred */
135 #define NFP_NET_CFG_TXRS_ENABLE 0x0008
136 #define NFP_NET_CFG_RXRS_ENABLE 0x0010
137 #define NFP_NET_CFG_MTU 0x0018
138 #define NFP_NET_CFG_FLBUFSZ 0x001c
139 #define NFP_NET_CFG_EXN 0x001f
140 #define NFP_NET_CFG_LSC 0x0020
141 #define NFP_NET_CFG_MACADDR 0x0024
144 * Read-only words (0x0030 - 0x0050):
145 * @NFP_NET_CFG_VERSION: Firmware version number
146 * @NFP_NET_CFG_STS: Status
147 * @NFP_NET_CFG_CAP: Capabilities (same bits as @NFP_NET_CFG_CTRL)
148 * @NFP_NET_MAX_TXRINGS: Maximum number of TX rings
149 * @NFP_NET_MAX_RXRINGS: Maximum number of RX rings
150 * @NFP_NET_MAX_MTU: Maximum support MTU
151 * @NFP_NET_CFG_START_TXQ: Start Queue Control Queue to use for TX (PF only)
152 * @NFP_NET_CFG_START_RXQ: Start Queue Control Queue to use for RX (PF only)
155 * - define more STS bits
157 #define NFP_NET_CFG_VERSION 0x0030
158 #define NFP_NET_CFG_VERSION_RESERVED_MASK (0xff << 24)
159 #define NFP_NET_CFG_VERSION_CLASS_MASK (0xff << 16)
160 #define NFP_NET_CFG_VERSION_CLASS(x) (((x) & 0xff) << 16)
161 #define NFP_NET_CFG_VERSION_CLASS_GENERIC 0
162 #define NFP_NET_CFG_VERSION_MAJOR_MASK (0xff << 8)
163 #define NFP_NET_CFG_VERSION_MAJOR(x) (((x) & 0xff) << 8)
164 #define NFP_NET_CFG_VERSION_MINOR_MASK (0xff << 0)
165 #define NFP_NET_CFG_VERSION_MINOR(x) (((x) & 0xff) << 0)
166 #define NFP_NET_CFG_STS 0x0034
167 #define NFP_NET_CFG_STS_LINK (0x1 << 0) /* Link up or down */
169 #define NFP_NET_CFG_STS_LINK_RATE_SHIFT 1
170 #define NFP_NET_CFG_STS_LINK_RATE_MASK 0xF
171 #define NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED 0
172 #define NFP_NET_CFG_STS_LINK_RATE_UNKNOWN 1
173 #define NFP_NET_CFG_STS_LINK_RATE_1G 2
174 #define NFP_NET_CFG_STS_LINK_RATE_10G 3
175 #define NFP_NET_CFG_STS_LINK_RATE_25G 4
176 #define NFP_NET_CFG_STS_LINK_RATE_40G 5
177 #define NFP_NET_CFG_STS_LINK_RATE_50G 6
178 #define NFP_NET_CFG_STS_LINK_RATE_100G 7
179 #define NFP_NET_CFG_CAP 0x0038
180 #define NFP_NET_CFG_MAX_TXRINGS 0x003c
181 #define NFP_NET_CFG_MAX_RXRINGS 0x0040
182 #define NFP_NET_CFG_MAX_MTU 0x0044
183 /* Next two words are being used by VFs for solving THB350 issue */
184 #define NFP_NET_CFG_START_TXQ 0x0048
185 #define NFP_NET_CFG_START_RXQ 0x004c
188 * NFP-3200 workaround (0x0050 - 0x0058)
189 * @NFP_NET_CFG_SPARE_ADDR: DMA address for ME code to use (e.g. YDS-155 fix)
191 #define NFP_NET_CFG_SPARE_ADDR 0x0050
193 * NFP6000/NFP4000 - Prepend configuration
195 #define NFP_NET_CFG_RX_OFFSET 0x0050
196 #define NFP_NET_CFG_RX_OFFSET_DYNAMIC 0 /* Prepend mode */
199 * Reuse spare address to contain the offset from the start of
200 * the host buffer where the first byte of the received frame
201 * will land. Any metadata will come prior to that offset. If the
202 * value in this field is 0, it means that that the metadata will
203 * always land starting at the first byte of the host buffer and
204 * packet data will immediately follow the metadata. As always,
205 * the RX descriptor indicates the presence or absence of metadata
206 * along with the length thereof.
208 #define NFP_NET_CFG_RX_OFFSET_ADDR 0x0050
210 #define NFP_NET_CFG_VXLAN_PORT 0x0060
211 #define NFP_NET_CFG_VXLAN_SZ 0x0008
213 /* Offload definitions */
214 #define NFP_NET_N_VXLAN_PORTS (NFP_NET_CFG_VXLAN_SZ / sizeof(uint16_t))
217 * 64B reserved for future use (0x0080 - 0x00c0)
219 #define NFP_NET_CFG_RESERVED 0x0080
220 #define NFP_NET_CFG_RESERVED_SZ 0x0040
223 * RSS configuration (0x0100 - 0x01ac):
224 * Used only when NFP_NET_CFG_CTRL_RSS is enabled
225 * @NFP_NET_CFG_RSS_CFG: RSS configuration word
226 * @NFP_NET_CFG_RSS_KEY: RSS "secret" key
227 * @NFP_NET_CFG_RSS_ITBL: RSS indirection table
229 #define NFP_NET_CFG_RSS_BASE 0x0100
230 #define NFP_NET_CFG_RSS_CTRL NFP_NET_CFG_RSS_BASE
231 #define NFP_NET_CFG_RSS_MASK (0x7f)
232 #define NFP_NET_CFG_RSS_MASK_of(_x) ((_x) & 0x7f)
233 #define NFP_NET_CFG_RSS_IPV4 (1 << 8) /* RSS for IPv4 */
234 #define NFP_NET_CFG_RSS_IPV6 (1 << 9) /* RSS for IPv6 */
235 #define NFP_NET_CFG_RSS_IPV4_TCP (1 << 10) /* RSS for IPv4/TCP */
236 #define NFP_NET_CFG_RSS_IPV4_UDP (1 << 11) /* RSS for IPv4/UDP */
237 #define NFP_NET_CFG_RSS_IPV6_TCP (1 << 12) /* RSS for IPv6/TCP */
238 #define NFP_NET_CFG_RSS_IPV6_UDP (1 << 13) /* RSS for IPv6/UDP */
239 #define NFP_NET_CFG_RSS_TOEPLITZ (1 << 24) /* Use Toeplitz hash */
240 #define NFP_NET_CFG_RSS_KEY (NFP_NET_CFG_RSS_BASE + 0x4)
241 #define NFP_NET_CFG_RSS_KEY_SZ 0x28
242 #define NFP_NET_CFG_RSS_ITBL (NFP_NET_CFG_RSS_BASE + 0x4 + \
243 NFP_NET_CFG_RSS_KEY_SZ)
244 #define NFP_NET_CFG_RSS_ITBL_SZ 0x80
247 * TX ring configuration (0x200 - 0x800)
248 * @NFP_NET_CFG_TXR_BASE: Base offset for TX ring configuration
249 * @NFP_NET_CFG_TXR_ADDR: Per TX ring DMA address (8B entries)
250 * @NFP_NET_CFG_TXR_WB_ADDR: Per TX ring write back DMA address (8B entries)
251 * @NFP_NET_CFG_TXR_SZ: Per TX ring ring size (1B entries)
252 * @NFP_NET_CFG_TXR_VEC: Per TX ring MSI-X table entry (1B entries)
253 * @NFP_NET_CFG_TXR_PRIO: Per TX ring priority (1B entries)
254 * @NFP_NET_CFG_TXR_IRQ_MOD: Per TX ring interrupt moderation (4B entries)
256 #define NFP_NET_CFG_TXR_BASE 0x0200
257 #define NFP_NET_CFG_TXR_ADDR(_x) (NFP_NET_CFG_TXR_BASE + ((_x) * 0x8))
258 #define NFP_NET_CFG_TXR_WB_ADDR(_x) (NFP_NET_CFG_TXR_BASE + 0x200 + \
260 #define NFP_NET_CFG_TXR_SZ(_x) (NFP_NET_CFG_TXR_BASE + 0x400 + (_x))
261 #define NFP_NET_CFG_TXR_VEC(_x) (NFP_NET_CFG_TXR_BASE + 0x440 + (_x))
262 #define NFP_NET_CFG_TXR_PRIO(_x) (NFP_NET_CFG_TXR_BASE + 0x480 + (_x))
263 #define NFP_NET_CFG_TXR_IRQ_MOD(_x) (NFP_NET_CFG_TXR_BASE + 0x500 + \
267 * RX ring configuration (0x0800 - 0x0c00)
268 * @NFP_NET_CFG_RXR_BASE: Base offset for RX ring configuration
269 * @NFP_NET_CFG_RXR_ADDR: Per TX ring DMA address (8B entries)
270 * @NFP_NET_CFG_RXR_SZ: Per TX ring ring size (1B entries)
271 * @NFP_NET_CFG_RXR_VEC: Per TX ring MSI-X table entry (1B entries)
272 * @NFP_NET_CFG_RXR_PRIO: Per TX ring priority (1B entries)
273 * @NFP_NET_CFG_RXR_IRQ_MOD: Per TX ring interrupt moderation (4B entries)
275 #define NFP_NET_CFG_RXR_BASE 0x0800
276 #define NFP_NET_CFG_RXR_ADDR(_x) (NFP_NET_CFG_RXR_BASE + ((_x) * 0x8))
277 #define NFP_NET_CFG_RXR_SZ(_x) (NFP_NET_CFG_RXR_BASE + 0x200 + (_x))
278 #define NFP_NET_CFG_RXR_VEC(_x) (NFP_NET_CFG_RXR_BASE + 0x240 + (_x))
279 #define NFP_NET_CFG_RXR_PRIO(_x) (NFP_NET_CFG_RXR_BASE + 0x280 + (_x))
280 #define NFP_NET_CFG_RXR_IRQ_MOD(_x) (NFP_NET_CFG_RXR_BASE + 0x300 + \
284 * Interrupt Control/Cause registers (0x0c00 - 0x0d00)
285 * These registers are only used when MSI-X auto-masking is not
286 * enabled (@NFP_NET_CFG_CTRL_MSIXAUTO not set). The array is index
287 * by MSI-X entry and are 1B in size. If an entry is zero, the
288 * corresponding entry is enabled. If the FW generates an interrupt,
289 * it writes a cause into the corresponding field. This also masks
290 * the MSI-X entry and the host driver must clear the register to
291 * re-enable the interrupt.
293 #define NFP_NET_CFG_ICR_BASE 0x0c00
294 #define NFP_NET_CFG_ICR(_x) (NFP_NET_CFG_ICR_BASE + (_x))
295 #define NFP_NET_CFG_ICR_UNMASKED 0x0
296 #define NFP_NET_CFG_ICR_RXTX 0x1
297 #define NFP_NET_CFG_ICR_LSC 0x2
300 * General device stats (0x0d00 - 0x0d90)
301 * all counters are 64bit.
303 #define NFP_NET_CFG_STATS_BASE 0x0d00
304 #define NFP_NET_CFG_STATS_RX_DISCARDS (NFP_NET_CFG_STATS_BASE + 0x00)
305 #define NFP_NET_CFG_STATS_RX_ERRORS (NFP_NET_CFG_STATS_BASE + 0x08)
306 #define NFP_NET_CFG_STATS_RX_OCTETS (NFP_NET_CFG_STATS_BASE + 0x10)
307 #define NFP_NET_CFG_STATS_RX_UC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x18)
308 #define NFP_NET_CFG_STATS_RX_MC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x20)
309 #define NFP_NET_CFG_STATS_RX_BC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x28)
310 #define NFP_NET_CFG_STATS_RX_FRAMES (NFP_NET_CFG_STATS_BASE + 0x30)
311 #define NFP_NET_CFG_STATS_RX_MC_FRAMES (NFP_NET_CFG_STATS_BASE + 0x38)
312 #define NFP_NET_CFG_STATS_RX_BC_FRAMES (NFP_NET_CFG_STATS_BASE + 0x40)
314 #define NFP_NET_CFG_STATS_TX_DISCARDS (NFP_NET_CFG_STATS_BASE + 0x48)
315 #define NFP_NET_CFG_STATS_TX_ERRORS (NFP_NET_CFG_STATS_BASE + 0x50)
316 #define NFP_NET_CFG_STATS_TX_OCTETS (NFP_NET_CFG_STATS_BASE + 0x58)
317 #define NFP_NET_CFG_STATS_TX_UC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x60)
318 #define NFP_NET_CFG_STATS_TX_MC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x68)
319 #define NFP_NET_CFG_STATS_TX_BC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x70)
320 #define NFP_NET_CFG_STATS_TX_FRAMES (NFP_NET_CFG_STATS_BASE + 0x78)
321 #define NFP_NET_CFG_STATS_TX_MC_FRAMES (NFP_NET_CFG_STATS_BASE + 0x80)
322 #define NFP_NET_CFG_STATS_TX_BC_FRAMES (NFP_NET_CFG_STATS_BASE + 0x88)
325 * Per ring stats (0x1000 - 0x1800)
326 * options, 64bit per entry
327 * @NFP_NET_CFG_TXR_STATS: TX ring statistics (Packet and Byte count)
328 * @NFP_NET_CFG_RXR_STATS: RX ring statistics (Packet and Byte count)
330 #define NFP_NET_CFG_TXR_STATS_BASE 0x1000
331 #define NFP_NET_CFG_TXR_STATS(_x) (NFP_NET_CFG_TXR_STATS_BASE + \
333 #define NFP_NET_CFG_RXR_STATS_BASE 0x1400
334 #define NFP_NET_CFG_RXR_STATS(_x) (NFP_NET_CFG_RXR_STATS_BASE + \
337 /* PF multiport offset */
338 #define NFP_PF_CSR_SLICE_SIZE (32 * 1024)
340 #endif /* _NFP_NET_CTRL_H_ */
343 * c-file-style: "Linux"
344 * indent-tabs-mode: t