]>
Commit | Line | Data |
---|---|---|
577ae39d JK |
1 | /* |
2 | * QLogic qlcnic NIC Driver | |
3 | * Copyright (c) 2009-2013 QLogic Corporation | |
4 | * | |
5 | * See LICENSE.qlcnic for copyright and licensing details. | |
6 | */ | |
7 | ||
c70001a9 SC |
8 | #include <linux/netdevice.h> |
9 | #include <linux/if_vlan.h> | |
10 | #include <net/ip.h> | |
11 | #include <linux/ipv6.h> | |
1bcac3b0 | 12 | #include <net/checksum.h> |
c70001a9 SC |
13 | |
14 | #include "qlcnic.h" | |
15 | ||
c70001a9 SC |
16 | #define TX_ETHER_PKT 0x01 |
17 | #define TX_TCP_PKT 0x02 | |
18 | #define TX_UDP_PKT 0x03 | |
19 | #define TX_IP_PKT 0x04 | |
20 | #define TX_TCP_LSO 0x05 | |
21 | #define TX_TCP_LSO6 0x06 | |
22 | #define TX_TCPV6_PKT 0x0b | |
23 | #define TX_UDPV6_PKT 0x0c | |
24 | #define FLAGS_VLAN_TAGGED 0x10 | |
25 | #define FLAGS_VLAN_OOB 0x40 | |
26 | ||
27 | #define qlcnic_set_tx_vlan_tci(cmd_desc, v) \ | |
28 | (cmd_desc)->vlan_TCI = cpu_to_le16(v); | |
29 | #define qlcnic_set_cmd_desc_port(cmd_desc, var) \ | |
30 | ((cmd_desc)->port_ctxid |= ((var) & 0x0F)) | |
31 | #define qlcnic_set_cmd_desc_ctxid(cmd_desc, var) \ | |
32 | ((cmd_desc)->port_ctxid |= ((var) << 4 & 0xF0)) | |
33 | ||
34 | #define qlcnic_set_tx_port(_desc, _port) \ | |
35 | ((_desc)->port_ctxid = ((_port) & 0xf) | (((_port) << 4) & 0xf0)) | |
36 | ||
37 | #define qlcnic_set_tx_flags_opcode(_desc, _flags, _opcode) \ | |
38 | ((_desc)->flags_opcode |= \ | |
39 | cpu_to_le16(((_flags) & 0x7f) | (((_opcode) & 0x3f) << 7))) | |
40 | ||
41 | #define qlcnic_set_tx_frags_len(_desc, _frags, _len) \ | |
42 | ((_desc)->nfrags__length = \ | |
43 | cpu_to_le32(((_frags) & 0xff) | (((_len) & 0xffffff) << 8))) | |
44 | ||
45 | /* owner bits of status_desc */ | |
46 | #define STATUS_OWNER_HOST (0x1ULL << 56) | |
47 | #define STATUS_OWNER_PHANTOM (0x2ULL << 56) | |
48 | ||
49 | /* Status descriptor: | |
50 | 0-3 port, 4-7 status, 8-11 type, 12-27 total_length | |
51 | 28-43 reference_handle, 44-47 protocol, 48-52 pkt_offset | |
52 | 53-55 desc_cnt, 56-57 owner, 58-63 opcode | |
53 | */ | |
54 | #define qlcnic_get_sts_port(sts_data) \ | |
55 | ((sts_data) & 0x0F) | |
56 | #define qlcnic_get_sts_status(sts_data) \ | |
57 | (((sts_data) >> 4) & 0x0F) | |
58 | #define qlcnic_get_sts_type(sts_data) \ | |
59 | (((sts_data) >> 8) & 0x0F) | |
60 | #define qlcnic_get_sts_totallength(sts_data) \ | |
61 | (((sts_data) >> 12) & 0xFFFF) | |
62 | #define qlcnic_get_sts_refhandle(sts_data) \ | |
63 | (((sts_data) >> 28) & 0xFFFF) | |
64 | #define qlcnic_get_sts_prot(sts_data) \ | |
65 | (((sts_data) >> 44) & 0x0F) | |
66 | #define qlcnic_get_sts_pkt_offset(sts_data) \ | |
67 | (((sts_data) >> 48) & 0x1F) | |
68 | #define qlcnic_get_sts_desc_cnt(sts_data) \ | |
69 | (((sts_data) >> 53) & 0x7) | |
70 | #define qlcnic_get_sts_opcode(sts_data) \ | |
71 | (((sts_data) >> 58) & 0x03F) | |
72 | ||
73 | #define qlcnic_get_lro_sts_refhandle(sts_data) \ | |
5796bd04 | 74 | ((sts_data) & 0x07FFF) |
c70001a9 SC |
75 | #define qlcnic_get_lro_sts_length(sts_data) \ |
76 | (((sts_data) >> 16) & 0x0FFFF) | |
77 | #define qlcnic_get_lro_sts_l2_hdr_offset(sts_data) \ | |
78 | (((sts_data) >> 32) & 0x0FF) | |
79 | #define qlcnic_get_lro_sts_l4_hdr_offset(sts_data) \ | |
80 | (((sts_data) >> 40) & 0x0FF) | |
81 | #define qlcnic_get_lro_sts_timestamp(sts_data) \ | |
82 | (((sts_data) >> 48) & 0x1) | |
83 | #define qlcnic_get_lro_sts_type(sts_data) \ | |
84 | (((sts_data) >> 49) & 0x7) | |
85 | #define qlcnic_get_lro_sts_push_flag(sts_data) \ | |
86 | (((sts_data) >> 52) & 0x1) | |
87 | #define qlcnic_get_lro_sts_seq_number(sts_data) \ | |
88 | ((sts_data) & 0x0FFFFFFFF) | |
89 | #define qlcnic_get_lro_sts_mss(sts_data1) \ | |
90 | ((sts_data1 >> 32) & 0x0FFFF) | |
91 | ||
99e85879 SS |
92 | #define qlcnic_83xx_get_lro_sts_mss(sts) ((sts) & 0xffff) |
93 | ||
c70001a9 SC |
94 | /* opcode field in status_desc */ |
95 | #define QLCNIC_SYN_OFFLOAD 0x03 | |
96 | #define QLCNIC_RXPKT_DESC 0x04 | |
97 | #define QLCNIC_OLD_RXPKT_DESC 0x3f | |
98 | #define QLCNIC_RESPONSE_DESC 0x05 | |
99 | #define QLCNIC_LRO_DESC 0x12 | |
100 | ||
4be41e92 SC |
101 | #define QLCNIC_TX_POLL_BUDGET 128 |
102 | #define QLCNIC_TCP_HDR_SIZE 20 | |
103 | #define QLCNIC_TCP_TS_OPTION_SIZE 12 | |
104 | #define QLCNIC_FETCH_RING_ID(handle) ((handle) >> 63) | |
105 | #define QLCNIC_DESC_OWNER_FW cpu_to_le64(STATUS_OWNER_PHANTOM) | |
106 | ||
107 | #define QLCNIC_TCP_TS_HDR_SIZE (QLCNIC_TCP_HDR_SIZE + QLCNIC_TCP_TS_OPTION_SIZE) | |
108 | ||
c70001a9 SC |
109 | /* for status field in status_desc */ |
110 | #define STATUS_CKSUM_LOOP 0 | |
111 | #define STATUS_CKSUM_OK 2 | |
d17dd0d9 | 112 | |
4be41e92 SC |
113 | #define qlcnic_83xx_pktln(sts) ((sts >> 32) & 0x3FFF) |
114 | #define qlcnic_83xx_hndl(sts) ((sts >> 48) & 0x7FFF) | |
115 | #define qlcnic_83xx_csum_status(sts) ((sts >> 39) & 7) | |
116 | #define qlcnic_83xx_opcode(sts) ((sts >> 42) & 0xF) | |
117 | #define qlcnic_83xx_vlan_tag(sts) (((sts) >> 48) & 0xFFFF) | |
118 | #define qlcnic_83xx_lro_pktln(sts) (((sts) >> 32) & 0x3FFF) | |
119 | #define qlcnic_83xx_l2_hdr_off(sts) (((sts) >> 16) & 0xFF) | |
120 | #define qlcnic_83xx_l4_hdr_off(sts) (((sts) >> 24) & 0xFF) | |
121 | #define qlcnic_83xx_pkt_cnt(sts) (((sts) >> 16) & 0x7) | |
122 | #define qlcnic_83xx_is_tstamp(sts) (((sts) >> 40) & 1) | |
123 | #define qlcnic_83xx_is_psh_bit(sts) (((sts) >> 41) & 1) | |
124 | #define qlcnic_83xx_is_ip_align(sts) (((sts) >> 46) & 1) | |
125 | #define qlcnic_83xx_has_vlan_tag(sts) (((sts) >> 47) & 1) | |
126 | ||
127 | struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *, | |
128 | struct qlcnic_host_rds_ring *, u16, u16); | |
129 | ||
130 | inline void qlcnic_83xx_enable_tx_intr(struct qlcnic_adapter *adapter, | |
131 | struct qlcnic_host_tx_ring *tx_ring) | |
132 | { | |
133 | writel(0, tx_ring->crb_intr_mask); | |
134 | } | |
135 | ||
136 | inline void qlcnic_83xx_disable_tx_intr(struct qlcnic_adapter *adapter, | |
137 | struct qlcnic_host_tx_ring *tx_ring) | |
138 | { | |
139 | writel(1, tx_ring->crb_intr_mask); | |
140 | } | |
141 | ||
142 | static inline u8 qlcnic_mac_hash(u64 mac) | |
143 | { | |
144 | return (u8)((mac & 0xff) ^ ((mac >> 40) & 0xff)); | |
145 | } | |
146 | ||
147 | static inline u32 qlcnic_get_ref_handle(struct qlcnic_adapter *adapter, | |
148 | u16 handle, u8 ring_id) | |
149 | { | |
15ca140f | 150 | if (qlcnic_83xx_check(adapter)) |
4be41e92 SC |
151 | return handle | (ring_id << 15); |
152 | else | |
153 | return handle; | |
154 | } | |
155 | ||
53643a75 SS |
156 | static inline int qlcnic_82xx_is_lb_pkt(u64 sts_data) |
157 | { | |
158 | return (qlcnic_get_sts_status(sts_data) == STATUS_CKSUM_LOOP) ? 1 : 0; | |
159 | } | |
160 | ||
e0d138d9 SS |
161 | static void qlcnic_delete_rx_list_mac(struct qlcnic_adapter *adapter, |
162 | struct qlcnic_filter *fil, | |
163 | void *addr, u16 vlan_id) | |
164 | { | |
165 | int ret; | |
166 | u8 op; | |
167 | ||
168 | op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD; | |
169 | ret = qlcnic_sre_macaddr_change(adapter, addr, vlan_id, op); | |
170 | if (ret) | |
171 | return; | |
172 | ||
173 | op = vlan_id ? QLCNIC_MAC_VLAN_DEL : QLCNIC_MAC_DEL; | |
174 | ret = qlcnic_sre_macaddr_change(adapter, addr, vlan_id, op); | |
175 | if (!ret) { | |
176 | hlist_del(&fil->fnode); | |
177 | adapter->rx_fhash.fnum--; | |
178 | } | |
179 | } | |
180 | ||
181 | static struct qlcnic_filter *qlcnic_find_mac_filter(struct hlist_head *head, | |
182 | void *addr, u16 vlan_id) | |
183 | { | |
184 | struct qlcnic_filter *tmp_fil = NULL; | |
185 | struct hlist_node *n; | |
186 | ||
187 | hlist_for_each_entry_safe(tmp_fil, n, head, fnode) { | |
188 | if (!memcmp(tmp_fil->faddr, addr, ETH_ALEN) && | |
189 | tmp_fil->vlan_id == vlan_id) | |
190 | return tmp_fil; | |
191 | } | |
192 | ||
193 | return NULL; | |
194 | } | |
195 | ||
53643a75 | 196 | void qlcnic_add_lb_filter(struct qlcnic_adapter *adapter, struct sk_buff *skb, |
f80bc8fe | 197 | int loopback_pkt, u16 vlan_id) |
53643a75 SS |
198 | { |
199 | struct ethhdr *phdr = (struct ethhdr *)(skb->data); | |
200 | struct qlcnic_filter *fil, *tmp_fil; | |
53643a75 SS |
201 | struct hlist_head *head; |
202 | unsigned long time; | |
203 | u64 src_addr = 0; | |
e0d138d9 | 204 | u8 hindex, op; |
53643a75 SS |
205 | int ret; |
206 | ||
207 | memcpy(&src_addr, phdr->h_source, ETH_ALEN); | |
e0d138d9 SS |
208 | hindex = qlcnic_mac_hash(src_addr) & |
209 | (adapter->fhash.fbucket_size - 1); | |
53643a75 SS |
210 | |
211 | if (loopback_pkt) { | |
212 | if (adapter->rx_fhash.fnum >= adapter->rx_fhash.fmax) | |
213 | return; | |
214 | ||
53643a75 SS |
215 | head = &(adapter->rx_fhash.fhead[hindex]); |
216 | ||
e0d138d9 SS |
217 | tmp_fil = qlcnic_find_mac_filter(head, &src_addr, vlan_id); |
218 | if (tmp_fil) { | |
219 | time = tmp_fil->ftime; | |
220 | if (time_after(jiffies, QLCNIC_READD_AGE * HZ + time)) | |
221 | tmp_fil->ftime = jiffies; | |
222 | return; | |
53643a75 SS |
223 | } |
224 | ||
225 | fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC); | |
226 | if (!fil) | |
227 | return; | |
228 | ||
229 | fil->ftime = jiffies; | |
230 | memcpy(fil->faddr, &src_addr, ETH_ALEN); | |
231 | fil->vlan_id = vlan_id; | |
232 | spin_lock(&adapter->rx_mac_learn_lock); | |
233 | hlist_add_head(&(fil->fnode), head); | |
234 | adapter->rx_fhash.fnum++; | |
235 | spin_unlock(&adapter->rx_mac_learn_lock); | |
236 | } else { | |
e0d138d9 | 237 | head = &adapter->fhash.fhead[hindex]; |
53643a75 | 238 | |
e0d138d9 | 239 | spin_lock(&adapter->mac_learn_lock); |
53643a75 | 240 | |
e0d138d9 SS |
241 | tmp_fil = qlcnic_find_mac_filter(head, &src_addr, vlan_id); |
242 | if (tmp_fil) { | |
53643a75 SS |
243 | op = vlan_id ? QLCNIC_MAC_VLAN_DEL : QLCNIC_MAC_DEL; |
244 | ret = qlcnic_sre_macaddr_change(adapter, | |
245 | (u8 *)&src_addr, | |
246 | vlan_id, op); | |
247 | if (!ret) { | |
e0d138d9 SS |
248 | hlist_del(&tmp_fil->fnode); |
249 | adapter->fhash.fnum--; | |
53643a75 | 250 | } |
e0d138d9 SS |
251 | |
252 | spin_unlock(&adapter->mac_learn_lock); | |
253 | ||
254 | return; | |
53643a75 | 255 | } |
e0d138d9 SS |
256 | |
257 | spin_unlock(&adapter->mac_learn_lock); | |
258 | ||
259 | head = &adapter->rx_fhash.fhead[hindex]; | |
260 | ||
261 | spin_lock(&adapter->rx_mac_learn_lock); | |
262 | ||
263 | tmp_fil = qlcnic_find_mac_filter(head, &src_addr, vlan_id); | |
264 | if (tmp_fil) | |
265 | qlcnic_delete_rx_list_mac(adapter, tmp_fil, &src_addr, | |
266 | vlan_id); | |
267 | ||
53643a75 SS |
268 | spin_unlock(&adapter->rx_mac_learn_lock); |
269 | } | |
270 | } | |
271 | ||
7e2cf4fe | 272 | void qlcnic_82xx_change_filter(struct qlcnic_adapter *adapter, u64 *uaddr, |
f80bc8fe | 273 | u16 vlan_id) |
c70001a9 SC |
274 | { |
275 | struct cmd_desc_type0 *hwdesc; | |
276 | struct qlcnic_nic_req *req; | |
277 | struct qlcnic_mac_req *mac_req; | |
278 | struct qlcnic_vlan_req *vlan_req; | |
7e2cf4fe | 279 | struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; |
c70001a9 SC |
280 | u32 producer; |
281 | u64 word; | |
282 | ||
283 | producer = tx_ring->producer; | |
284 | hwdesc = &tx_ring->desc_head[tx_ring->producer]; | |
285 | ||
286 | req = (struct qlcnic_nic_req *)hwdesc; | |
287 | memset(req, 0, sizeof(struct qlcnic_nic_req)); | |
288 | req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23); | |
289 | ||
290 | word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16); | |
291 | req->req_hdr = cpu_to_le64(word); | |
292 | ||
293 | mac_req = (struct qlcnic_mac_req *)&(req->words[0]); | |
294 | mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD; | |
4a99ab56 | 295 | memcpy(mac_req->mac_addr, uaddr, ETH_ALEN); |
c70001a9 SC |
296 | |
297 | vlan_req = (struct qlcnic_vlan_req *)&req->words[1]; | |
f80bc8fe | 298 | vlan_req->vlan_id = cpu_to_le16(vlan_id); |
c70001a9 SC |
299 | |
300 | tx_ring->producer = get_next_index(producer, tx_ring->num_desc); | |
301 | smp_mb(); | |
302 | } | |
303 | ||
d17dd0d9 | 304 | static void qlcnic_send_filter(struct qlcnic_adapter *adapter, |
d17dd0d9 SC |
305 | struct cmd_desc_type0 *first_desc, |
306 | struct sk_buff *skb) | |
c70001a9 | 307 | { |
c70001a9 | 308 | struct qlcnic_filter *fil, *tmp_fil; |
b67bfe0d | 309 | struct hlist_node *n; |
c70001a9 | 310 | struct hlist_head *head; |
4be41e92 | 311 | struct net_device *netdev = adapter->netdev; |
7e2cf4fe | 312 | struct ethhdr *phdr = (struct ethhdr *)(skb->data); |
c70001a9 | 313 | u64 src_addr = 0; |
f80bc8fe | 314 | u16 vlan_id = 0; |
c70001a9 SC |
315 | u8 hindex; |
316 | ||
4be41e92 | 317 | if (ether_addr_equal(phdr->h_source, adapter->mac_addr)) |
c70001a9 SC |
318 | return; |
319 | ||
4be41e92 SC |
320 | if (adapter->fhash.fnum >= adapter->fhash.fmax) { |
321 | adapter->stats.mac_filter_limit_overrun++; | |
322 | netdev_info(netdev, "Can not add more than %d mac addresses\n", | |
323 | adapter->fhash.fmax); | |
c70001a9 | 324 | return; |
4be41e92 | 325 | } |
c70001a9 | 326 | |
c70001a9 | 327 | memcpy(&src_addr, phdr->h_source, ETH_ALEN); |
4be41e92 | 328 | hindex = qlcnic_mac_hash(src_addr) & (adapter->fhash.fbucket_size - 1); |
c70001a9 SC |
329 | head = &(adapter->fhash.fhead[hindex]); |
330 | ||
b67bfe0d | 331 | hlist_for_each_entry_safe(tmp_fil, n, head, fnode) { |
c70001a9 | 332 | if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) && |
7e2cf4fe | 333 | tmp_fil->vlan_id == vlan_id) { |
d17dd0d9 | 334 | if (jiffies > (QLCNIC_READD_AGE * HZ + tmp_fil->ftime)) |
7e2cf4fe SC |
335 | qlcnic_change_filter(adapter, &src_addr, |
336 | vlan_id); | |
c70001a9 SC |
337 | tmp_fil->ftime = jiffies; |
338 | return; | |
339 | } | |
340 | } | |
341 | ||
342 | fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC); | |
343 | if (!fil) | |
344 | return; | |
345 | ||
7e2cf4fe | 346 | qlcnic_change_filter(adapter, &src_addr, vlan_id); |
c70001a9 SC |
347 | fil->ftime = jiffies; |
348 | fil->vlan_id = vlan_id; | |
349 | memcpy(fil->faddr, &src_addr, ETH_ALEN); | |
350 | spin_lock(&adapter->mac_learn_lock); | |
351 | hlist_add_head(&(fil->fnode), head); | |
352 | adapter->fhash.fnum++; | |
353 | spin_unlock(&adapter->mac_learn_lock); | |
354 | } | |
355 | ||
d17dd0d9 SC |
356 | static int qlcnic_tx_pkt(struct qlcnic_adapter *adapter, |
357 | struct cmd_desc_type0 *first_desc, struct sk_buff *skb) | |
c70001a9 | 358 | { |
d17dd0d9 | 359 | u8 l4proto, opcode = 0, hdr_len = 0; |
c70001a9 | 360 | u16 flags = 0, vlan_tci = 0; |
d17dd0d9 | 361 | int copied, offset, copy_len, size; |
c70001a9 SC |
362 | struct cmd_desc_type0 *hwdesc; |
363 | struct vlan_ethhdr *vh; | |
364 | struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; | |
365 | u16 protocol = ntohs(skb->protocol); | |
366 | u32 producer = tx_ring->producer; | |
367 | ||
368 | if (protocol == ETH_P_8021Q) { | |
369 | vh = (struct vlan_ethhdr *)skb->data; | |
370 | flags = FLAGS_VLAN_TAGGED; | |
371 | vlan_tci = ntohs(vh->h_vlan_TCI); | |
372 | protocol = ntohs(vh->h_vlan_encapsulated_proto); | |
373 | } else if (vlan_tx_tag_present(skb)) { | |
374 | flags = FLAGS_VLAN_OOB; | |
375 | vlan_tci = vlan_tx_tag_get(skb); | |
376 | } | |
91b7282b | 377 | if (unlikely(adapter->tx_pvid)) { |
c70001a9 SC |
378 | if (vlan_tci && !(adapter->flags & QLCNIC_TAGGING_ENABLED)) |
379 | return -EIO; | |
380 | if (vlan_tci && (adapter->flags & QLCNIC_TAGGING_ENABLED)) | |
381 | goto set_flags; | |
382 | ||
383 | flags = FLAGS_VLAN_OOB; | |
91b7282b | 384 | vlan_tci = adapter->tx_pvid; |
c70001a9 SC |
385 | } |
386 | set_flags: | |
387 | qlcnic_set_tx_vlan_tci(first_desc, vlan_tci); | |
388 | qlcnic_set_tx_flags_opcode(first_desc, flags, opcode); | |
389 | ||
390 | if (*(skb->data) & BIT_0) { | |
391 | flags |= BIT_0; | |
392 | memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN); | |
393 | } | |
394 | opcode = TX_ETHER_PKT; | |
3eead213 | 395 | if (skb_is_gso(skb)) { |
c70001a9 | 396 | hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); |
c70001a9 SC |
397 | first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); |
398 | first_desc->total_hdr_length = hdr_len; | |
c70001a9 SC |
399 | opcode = (protocol == ETH_P_IPV6) ? TX_TCP_LSO6 : TX_TCP_LSO; |
400 | ||
401 | /* For LSO, we need to copy the MAC/IP/TCP headers into | |
402 | * the descriptor ring */ | |
403 | copied = 0; | |
404 | offset = 2; | |
405 | ||
406 | if (flags & FLAGS_VLAN_OOB) { | |
407 | first_desc->total_hdr_length += VLAN_HLEN; | |
408 | first_desc->tcp_hdr_offset = VLAN_HLEN; | |
409 | first_desc->ip_hdr_offset = VLAN_HLEN; | |
d17dd0d9 | 410 | |
c70001a9 SC |
411 | /* Only in case of TSO on vlan device */ |
412 | flags |= FLAGS_VLAN_TAGGED; | |
413 | ||
414 | /* Create a TSO vlan header template for firmware */ | |
c70001a9 SC |
415 | hwdesc = &tx_ring->desc_head[producer]; |
416 | tx_ring->cmd_buf_arr[producer].skb = NULL; | |
417 | ||
418 | copy_len = min((int)sizeof(struct cmd_desc_type0) - | |
d17dd0d9 | 419 | offset, hdr_len + VLAN_HLEN); |
c70001a9 SC |
420 | |
421 | vh = (struct vlan_ethhdr *)((char *) hwdesc + 2); | |
422 | skb_copy_from_linear_data(skb, vh, 12); | |
423 | vh->h_vlan_proto = htons(ETH_P_8021Q); | |
424 | vh->h_vlan_TCI = htons(vlan_tci); | |
425 | ||
426 | skb_copy_from_linear_data_offset(skb, 12, | |
d17dd0d9 SC |
427 | (char *)vh + 16, |
428 | copy_len - 16); | |
c70001a9 SC |
429 | copied = copy_len - VLAN_HLEN; |
430 | offset = 0; | |
c70001a9 SC |
431 | producer = get_next_index(producer, tx_ring->num_desc); |
432 | } | |
433 | ||
434 | while (copied < hdr_len) { | |
d17dd0d9 SC |
435 | size = (int)sizeof(struct cmd_desc_type0) - offset; |
436 | copy_len = min(size, (hdr_len - copied)); | |
c70001a9 SC |
437 | hwdesc = &tx_ring->desc_head[producer]; |
438 | tx_ring->cmd_buf_arr[producer].skb = NULL; | |
c70001a9 | 439 | skb_copy_from_linear_data_offset(skb, copied, |
d17dd0d9 SC |
440 | (char *)hwdesc + |
441 | offset, copy_len); | |
c70001a9 SC |
442 | copied += copy_len; |
443 | offset = 0; | |
c70001a9 SC |
444 | producer = get_next_index(producer, tx_ring->num_desc); |
445 | } | |
446 | ||
447 | tx_ring->producer = producer; | |
448 | smp_mb(); | |
449 | adapter->stats.lso_frames++; | |
450 | ||
451 | } else if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
c70001a9 SC |
452 | if (protocol == ETH_P_IP) { |
453 | l4proto = ip_hdr(skb)->protocol; | |
454 | ||
455 | if (l4proto == IPPROTO_TCP) | |
456 | opcode = TX_TCP_PKT; | |
457 | else if (l4proto == IPPROTO_UDP) | |
458 | opcode = TX_UDP_PKT; | |
459 | } else if (protocol == ETH_P_IPV6) { | |
460 | l4proto = ipv6_hdr(skb)->nexthdr; | |
461 | ||
462 | if (l4proto == IPPROTO_TCP) | |
463 | opcode = TX_TCPV6_PKT; | |
464 | else if (l4proto == IPPROTO_UDP) | |
465 | opcode = TX_UDPV6_PKT; | |
466 | } | |
467 | } | |
468 | first_desc->tcp_hdr_offset += skb_transport_offset(skb); | |
469 | first_desc->ip_hdr_offset += skb_network_offset(skb); | |
470 | qlcnic_set_tx_flags_opcode(first_desc, flags, opcode); | |
471 | ||
472 | return 0; | |
473 | } | |
474 | ||
d17dd0d9 SC |
475 | static int qlcnic_map_tx_skb(struct pci_dev *pdev, struct sk_buff *skb, |
476 | struct qlcnic_cmd_buffer *pbuf) | |
c70001a9 SC |
477 | { |
478 | struct qlcnic_skb_frag *nf; | |
479 | struct skb_frag_struct *frag; | |
480 | int i, nr_frags; | |
481 | dma_addr_t map; | |
482 | ||
483 | nr_frags = skb_shinfo(skb)->nr_frags; | |
484 | nf = &pbuf->frag_array[0]; | |
485 | ||
d17dd0d9 SC |
486 | map = pci_map_single(pdev, skb->data, skb_headlen(skb), |
487 | PCI_DMA_TODEVICE); | |
c70001a9 SC |
488 | if (pci_dma_mapping_error(pdev, map)) |
489 | goto out_err; | |
490 | ||
491 | nf->dma = map; | |
492 | nf->length = skb_headlen(skb); | |
493 | ||
494 | for (i = 0; i < nr_frags; i++) { | |
495 | frag = &skb_shinfo(skb)->frags[i]; | |
496 | nf = &pbuf->frag_array[i+1]; | |
c70001a9 SC |
497 | map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag), |
498 | DMA_TO_DEVICE); | |
499 | if (dma_mapping_error(&pdev->dev, map)) | |
500 | goto unwind; | |
501 | ||
502 | nf->dma = map; | |
503 | nf->length = skb_frag_size(frag); | |
504 | } | |
505 | ||
506 | return 0; | |
507 | ||
508 | unwind: | |
509 | while (--i >= 0) { | |
510 | nf = &pbuf->frag_array[i+1]; | |
511 | pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); | |
512 | } | |
513 | ||
514 | nf = &pbuf->frag_array[0]; | |
515 | pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); | |
516 | ||
517 | out_err: | |
518 | return -ENOMEM; | |
519 | } | |
520 | ||
d17dd0d9 SC |
521 | static void qlcnic_unmap_buffers(struct pci_dev *pdev, struct sk_buff *skb, |
522 | struct qlcnic_cmd_buffer *pbuf) | |
c70001a9 SC |
523 | { |
524 | struct qlcnic_skb_frag *nf = &pbuf->frag_array[0]; | |
d17dd0d9 | 525 | int i, nr_frags = skb_shinfo(skb)->nr_frags; |
c70001a9 SC |
526 | |
527 | for (i = 0; i < nr_frags; i++) { | |
528 | nf = &pbuf->frag_array[i+1]; | |
529 | pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); | |
530 | } | |
531 | ||
532 | nf = &pbuf->frag_array[0]; | |
533 | pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); | |
534 | pbuf->skb = NULL; | |
535 | } | |
536 | ||
d17dd0d9 | 537 | static inline void qlcnic_clear_cmddesc(u64 *desc) |
c70001a9 SC |
538 | { |
539 | desc[0] = 0ULL; | |
540 | desc[2] = 0ULL; | |
541 | desc[7] = 0ULL; | |
542 | } | |
543 | ||
d17dd0d9 | 544 | netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) |
c70001a9 SC |
545 | { |
546 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
547 | struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; | |
548 | struct qlcnic_cmd_buffer *pbuf; | |
549 | struct qlcnic_skb_frag *buffrag; | |
550 | struct cmd_desc_type0 *hwdesc, *first_desc; | |
551 | struct pci_dev *pdev; | |
552 | struct ethhdr *phdr; | |
d17dd0d9 SC |
553 | int i, k, frag_count, delta = 0; |
554 | u32 producer, num_txd; | |
c70001a9 | 555 | |
d17dd0d9 | 556 | num_txd = tx_ring->num_desc; |
c70001a9 SC |
557 | |
558 | if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) { | |
559 | netif_stop_queue(netdev); | |
560 | return NETDEV_TX_BUSY; | |
561 | } | |
562 | ||
563 | if (adapter->flags & QLCNIC_MACSPOOF) { | |
564 | phdr = (struct ethhdr *)skb->data; | |
565 | if (!ether_addr_equal(phdr->h_source, adapter->mac_addr)) | |
566 | goto drop_packet; | |
567 | } | |
568 | ||
569 | frag_count = skb_shinfo(skb)->nr_frags + 1; | |
570 | /* 14 frags supported for normal packet and | |
571 | * 32 frags supported for TSO packet | |
572 | */ | |
573 | if (!skb_is_gso(skb) && frag_count > QLCNIC_MAX_FRAGS_PER_TX) { | |
c70001a9 SC |
574 | for (i = 0; i < (frag_count - QLCNIC_MAX_FRAGS_PER_TX); i++) |
575 | delta += skb_frag_size(&skb_shinfo(skb)->frags[i]); | |
576 | ||
577 | if (!__pskb_pull_tail(skb, delta)) | |
578 | goto drop_packet; | |
579 | ||
580 | frag_count = 1 + skb_shinfo(skb)->nr_frags; | |
581 | } | |
582 | ||
583 | if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) { | |
584 | netif_stop_queue(netdev); | |
d17dd0d9 | 585 | if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) { |
c70001a9 | 586 | netif_start_queue(netdev); |
d17dd0d9 | 587 | } else { |
c70001a9 SC |
588 | adapter->stats.xmit_off++; |
589 | return NETDEV_TX_BUSY; | |
590 | } | |
591 | } | |
592 | ||
593 | producer = tx_ring->producer; | |
594 | pbuf = &tx_ring->cmd_buf_arr[producer]; | |
c70001a9 | 595 | pdev = adapter->pdev; |
d17dd0d9 SC |
596 | first_desc = &tx_ring->desc_head[producer]; |
597 | hwdesc = &tx_ring->desc_head[producer]; | |
c70001a9 SC |
598 | qlcnic_clear_cmddesc((u64 *)hwdesc); |
599 | ||
600 | if (qlcnic_map_tx_skb(pdev, skb, pbuf)) { | |
601 | adapter->stats.tx_dma_map_error++; | |
602 | goto drop_packet; | |
603 | } | |
604 | ||
605 | pbuf->skb = skb; | |
606 | pbuf->frag_count = frag_count; | |
607 | ||
608 | qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len); | |
609 | qlcnic_set_tx_port(first_desc, adapter->portnum); | |
610 | ||
611 | for (i = 0; i < frag_count; i++) { | |
c70001a9 SC |
612 | k = i % 4; |
613 | ||
614 | if ((k == 0) && (i > 0)) { | |
615 | /* move to next desc.*/ | |
616 | producer = get_next_index(producer, num_txd); | |
617 | hwdesc = &tx_ring->desc_head[producer]; | |
618 | qlcnic_clear_cmddesc((u64 *)hwdesc); | |
619 | tx_ring->cmd_buf_arr[producer].skb = NULL; | |
620 | } | |
621 | ||
622 | buffrag = &pbuf->frag_array[i]; | |
c70001a9 SC |
623 | hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); |
624 | switch (k) { | |
625 | case 0: | |
626 | hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); | |
627 | break; | |
628 | case 1: | |
629 | hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); | |
630 | break; | |
631 | case 2: | |
632 | hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); | |
633 | break; | |
634 | case 3: | |
635 | hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); | |
636 | break; | |
637 | } | |
638 | } | |
639 | ||
640 | tx_ring->producer = get_next_index(producer, num_txd); | |
641 | smp_mb(); | |
642 | ||
643 | if (unlikely(qlcnic_tx_pkt(adapter, first_desc, skb))) | |
644 | goto unwind_buff; | |
645 | ||
fe1adc6b | 646 | if (adapter->drv_mac_learn) |
4be41e92 | 647 | qlcnic_send_filter(adapter, first_desc, skb); |
c70001a9 SC |
648 | |
649 | adapter->stats.txbytes += skb->len; | |
650 | adapter->stats.xmitcalled++; | |
651 | ||
652 | qlcnic_update_cmd_producer(tx_ring); | |
653 | ||
654 | return NETDEV_TX_OK; | |
655 | ||
656 | unwind_buff: | |
657 | qlcnic_unmap_buffers(pdev, skb, pbuf); | |
658 | drop_packet: | |
659 | adapter->stats.txdropped++; | |
660 | dev_kfree_skb_any(skb); | |
661 | return NETDEV_TX_OK; | |
662 | } | |
663 | ||
7f966452 | 664 | void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup) |
c70001a9 SC |
665 | { |
666 | struct net_device *netdev = adapter->netdev; | |
667 | ||
668 | if (adapter->ahw->linkup && !linkup) { | |
669 | netdev_info(netdev, "NIC Link is down\n"); | |
670 | adapter->ahw->linkup = 0; | |
671 | if (netif_running(netdev)) { | |
672 | netif_carrier_off(netdev); | |
673 | netif_stop_queue(netdev); | |
674 | } | |
675 | } else if (!adapter->ahw->linkup && linkup) { | |
676 | netdev_info(netdev, "NIC Link is up\n"); | |
677 | adapter->ahw->linkup = 1; | |
678 | if (netif_running(netdev)) { | |
679 | netif_carrier_on(netdev); | |
680 | netif_wake_queue(netdev); | |
681 | } | |
682 | } | |
683 | } | |
684 | ||
d17dd0d9 SC |
685 | static int qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter, |
686 | struct qlcnic_host_rds_ring *rds_ring, | |
687 | struct qlcnic_rx_buffer *buffer) | |
c70001a9 SC |
688 | { |
689 | struct sk_buff *skb; | |
690 | dma_addr_t dma; | |
691 | struct pci_dev *pdev = adapter->pdev; | |
692 | ||
693 | skb = netdev_alloc_skb(adapter->netdev, rds_ring->skb_size); | |
694 | if (!skb) { | |
695 | adapter->stats.skb_alloc_failure++; | |
696 | return -ENOMEM; | |
697 | } | |
698 | ||
699 | skb_reserve(skb, NET_IP_ALIGN); | |
4be41e92 SC |
700 | dma = pci_map_single(pdev, skb->data, |
701 | rds_ring->dma_size, PCI_DMA_FROMDEVICE); | |
c70001a9 SC |
702 | |
703 | if (pci_dma_mapping_error(pdev, dma)) { | |
704 | adapter->stats.rx_dma_map_error++; | |
705 | dev_kfree_skb_any(skb); | |
706 | return -ENOMEM; | |
707 | } | |
708 | ||
709 | buffer->skb = skb; | |
710 | buffer->dma = dma; | |
711 | ||
712 | return 0; | |
713 | } | |
714 | ||
715 | static void qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter, | |
4be41e92 SC |
716 | struct qlcnic_host_rds_ring *rds_ring, |
717 | u8 ring_id) | |
c70001a9 SC |
718 | { |
719 | struct rcv_desc *pdesc; | |
720 | struct qlcnic_rx_buffer *buffer; | |
721 | int count = 0; | |
4be41e92 | 722 | uint32_t producer, handle; |
c70001a9 SC |
723 | struct list_head *head; |
724 | ||
725 | if (!spin_trylock(&rds_ring->lock)) | |
726 | return; | |
727 | ||
728 | producer = rds_ring->producer; | |
c70001a9 | 729 | head = &rds_ring->free_list; |
d17dd0d9 | 730 | while (!list_empty(head)) { |
c70001a9 SC |
731 | buffer = list_entry(head->next, struct qlcnic_rx_buffer, list); |
732 | ||
733 | if (!buffer->skb) { | |
734 | if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer)) | |
735 | break; | |
736 | } | |
c70001a9 SC |
737 | count++; |
738 | list_del(&buffer->list); | |
739 | ||
740 | /* make a rcv descriptor */ | |
741 | pdesc = &rds_ring->desc_head[producer]; | |
4be41e92 SC |
742 | handle = qlcnic_get_ref_handle(adapter, |
743 | buffer->ref_handle, ring_id); | |
744 | pdesc->reference_handle = cpu_to_le16(handle); | |
c70001a9 SC |
745 | pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); |
746 | pdesc->addr_buffer = cpu_to_le64(buffer->dma); | |
c70001a9 SC |
747 | producer = get_next_index(producer, rds_ring->num_desc); |
748 | } | |
c70001a9 SC |
749 | if (count) { |
750 | rds_ring->producer = producer; | |
751 | writel((producer - 1) & (rds_ring->num_desc - 1), | |
d17dd0d9 | 752 | rds_ring->crb_rcv_producer); |
c70001a9 SC |
753 | } |
754 | spin_unlock(&rds_ring->lock); | |
755 | } | |
756 | ||
4be41e92 SC |
757 | static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter, |
758 | struct qlcnic_host_tx_ring *tx_ring, | |
759 | int budget) | |
c70001a9 SC |
760 | { |
761 | u32 sw_consumer, hw_consumer; | |
d17dd0d9 | 762 | int i, done, count = 0; |
c70001a9 SC |
763 | struct qlcnic_cmd_buffer *buffer; |
764 | struct pci_dev *pdev = adapter->pdev; | |
765 | struct net_device *netdev = adapter->netdev; | |
766 | struct qlcnic_skb_frag *frag; | |
c70001a9 SC |
767 | |
768 | if (!spin_trylock(&adapter->tx_clean_lock)) | |
769 | return 1; | |
770 | ||
771 | sw_consumer = tx_ring->sw_consumer; | |
772 | hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); | |
773 | ||
774 | while (sw_consumer != hw_consumer) { | |
775 | buffer = &tx_ring->cmd_buf_arr[sw_consumer]; | |
776 | if (buffer->skb) { | |
777 | frag = &buffer->frag_array[0]; | |
778 | pci_unmap_single(pdev, frag->dma, frag->length, | |
779 | PCI_DMA_TODEVICE); | |
780 | frag->dma = 0ULL; | |
781 | for (i = 1; i < buffer->frag_count; i++) { | |
782 | frag++; | |
783 | pci_unmap_page(pdev, frag->dma, frag->length, | |
784 | PCI_DMA_TODEVICE); | |
785 | frag->dma = 0ULL; | |
786 | } | |
c70001a9 SC |
787 | adapter->stats.xmitfinished++; |
788 | dev_kfree_skb_any(buffer->skb); | |
789 | buffer->skb = NULL; | |
790 | } | |
791 | ||
792 | sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc); | |
4be41e92 | 793 | if (++count >= budget) |
c70001a9 SC |
794 | break; |
795 | } | |
796 | ||
797 | if (count && netif_running(netdev)) { | |
798 | tx_ring->sw_consumer = sw_consumer; | |
c70001a9 | 799 | smp_mb(); |
c70001a9 SC |
800 | if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) { |
801 | if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) { | |
802 | netif_wake_queue(netdev); | |
803 | adapter->stats.xmit_on++; | |
804 | } | |
805 | } | |
806 | adapter->tx_timeo_cnt = 0; | |
807 | } | |
808 | /* | |
809 | * If everything is freed up to consumer then check if the ring is full | |
810 | * If the ring is full then check if more needs to be freed and | |
811 | * schedule the call back again. | |
812 | * | |
813 | * This happens when there are 2 CPUs. One could be freeing and the | |
814 | * other filling it. If the ring is full when we get out of here and | |
815 | * the card has already interrupted the host then the host can miss the | |
816 | * interrupt. | |
817 | * | |
818 | * There is still a possible race condition and the host could miss an | |
819 | * interrupt. The card has to take care of this. | |
820 | */ | |
821 | hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); | |
822 | done = (sw_consumer == hw_consumer); | |
823 | spin_unlock(&adapter->tx_clean_lock); | |
824 | ||
825 | return done; | |
826 | } | |
827 | ||
828 | static int qlcnic_poll(struct napi_struct *napi, int budget) | |
829 | { | |
4be41e92 | 830 | int tx_complete, work_done; |
d17dd0d9 SC |
831 | struct qlcnic_host_sds_ring *sds_ring; |
832 | struct qlcnic_adapter *adapter; | |
c70001a9 | 833 | |
d17dd0d9 SC |
834 | sds_ring = container_of(napi, struct qlcnic_host_sds_ring, napi); |
835 | adapter = sds_ring->adapter; | |
4be41e92 SC |
836 | tx_complete = qlcnic_process_cmd_ring(adapter, adapter->tx_ring, |
837 | budget); | |
c70001a9 | 838 | work_done = qlcnic_process_rcv_ring(sds_ring, budget); |
c70001a9 SC |
839 | if ((work_done < budget) && tx_complete) { |
840 | napi_complete(&sds_ring->napi); | |
841 | if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) | |
842 | qlcnic_enable_int(sds_ring); | |
843 | } | |
844 | ||
845 | return work_done; | |
846 | } | |
847 | ||
848 | static int qlcnic_rx_poll(struct napi_struct *napi, int budget) | |
849 | { | |
d17dd0d9 SC |
850 | struct qlcnic_host_sds_ring *sds_ring; |
851 | struct qlcnic_adapter *adapter; | |
c70001a9 SC |
852 | int work_done; |
853 | ||
d17dd0d9 SC |
854 | sds_ring = container_of(napi, struct qlcnic_host_sds_ring, napi); |
855 | adapter = sds_ring->adapter; | |
856 | ||
c70001a9 SC |
857 | work_done = qlcnic_process_rcv_ring(sds_ring, budget); |
858 | ||
859 | if (work_done < budget) { | |
860 | napi_complete(&sds_ring->napi); | |
861 | if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) | |
862 | qlcnic_enable_int(sds_ring); | |
863 | } | |
864 | ||
865 | return work_done; | |
866 | } | |
867 | ||
d17dd0d9 SC |
868 | static void qlcnic_handle_linkevent(struct qlcnic_adapter *adapter, |
869 | struct qlcnic_fw_msg *msg) | |
c70001a9 SC |
870 | { |
871 | u32 cable_OUI; | |
d17dd0d9 SC |
872 | u16 cable_len, link_speed; |
873 | u8 link_status, module, duplex, autoneg, lb_status = 0; | |
c70001a9 SC |
874 | struct net_device *netdev = adapter->netdev; |
875 | ||
79788450 | 876 | adapter->ahw->has_link_events = 1; |
c70001a9 SC |
877 | |
878 | cable_OUI = msg->body[1] & 0xffffffff; | |
879 | cable_len = (msg->body[1] >> 32) & 0xffff; | |
880 | link_speed = (msg->body[1] >> 48) & 0xffff; | |
881 | ||
882 | link_status = msg->body[2] & 0xff; | |
883 | duplex = (msg->body[2] >> 16) & 0xff; | |
884 | autoneg = (msg->body[2] >> 24) & 0xff; | |
885 | lb_status = (msg->body[2] >> 32) & 0x3; | |
886 | ||
887 | module = (msg->body[2] >> 8) & 0xff; | |
888 | if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) | |
d17dd0d9 SC |
889 | dev_info(&netdev->dev, |
890 | "unsupported cable: OUI 0x%x, length %d\n", | |
891 | cable_OUI, cable_len); | |
c70001a9 SC |
892 | else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) |
893 | dev_info(&netdev->dev, "unsupported cable length %d\n", | |
d17dd0d9 | 894 | cable_len); |
c70001a9 SC |
895 | |
896 | if (!link_status && (lb_status == QLCNIC_ILB_MODE || | |
897 | lb_status == QLCNIC_ELB_MODE)) | |
898 | adapter->ahw->loopback_state |= QLCNIC_LINKEVENT; | |
899 | ||
900 | qlcnic_advert_link_change(adapter, link_status); | |
901 | ||
902 | if (duplex == LINKEVENT_FULL_DUPLEX) | |
79788450 | 903 | adapter->ahw->link_duplex = DUPLEX_FULL; |
c70001a9 | 904 | else |
79788450 | 905 | adapter->ahw->link_duplex = DUPLEX_HALF; |
c70001a9 | 906 | |
79788450 SC |
907 | adapter->ahw->module_type = module; |
908 | adapter->ahw->link_autoneg = autoneg; | |
c70001a9 SC |
909 | |
910 | if (link_status) { | |
79788450 | 911 | adapter->ahw->link_speed = link_speed; |
c70001a9 | 912 | } else { |
79788450 SC |
913 | adapter->ahw->link_speed = SPEED_UNKNOWN; |
914 | adapter->ahw->link_duplex = DUPLEX_UNKNOWN; | |
c70001a9 SC |
915 | } |
916 | } | |
917 | ||
d17dd0d9 SC |
918 | static void qlcnic_handle_fw_message(int desc_cnt, int index, |
919 | struct qlcnic_host_sds_ring *sds_ring) | |
c70001a9 SC |
920 | { |
921 | struct qlcnic_fw_msg msg; | |
922 | struct status_desc *desc; | |
923 | struct qlcnic_adapter *adapter; | |
924 | struct device *dev; | |
925 | int i = 0, opcode, ret; | |
926 | ||
927 | while (desc_cnt > 0 && i < 8) { | |
928 | desc = &sds_ring->desc_head[index]; | |
929 | msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]); | |
930 | msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]); | |
931 | ||
932 | index = get_next_index(index, sds_ring->num_desc); | |
933 | desc_cnt--; | |
934 | } | |
935 | ||
936 | adapter = sds_ring->adapter; | |
937 | dev = &adapter->pdev->dev; | |
938 | opcode = qlcnic_get_nic_msg_opcode(msg.body[0]); | |
939 | ||
940 | switch (opcode) { | |
941 | case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE: | |
942 | qlcnic_handle_linkevent(adapter, &msg); | |
943 | break; | |
944 | case QLCNIC_C2H_OPCODE_CONFIG_LOOPBACK: | |
945 | ret = (u32)(msg.body[1]); | |
946 | switch (ret) { | |
947 | case 0: | |
948 | adapter->ahw->loopback_state |= QLCNIC_LB_RESPONSE; | |
949 | break; | |
950 | case 1: | |
951 | dev_info(dev, "loopback already in progress\n"); | |
b9c11984 | 952 | adapter->ahw->diag_cnt = -EINPROGRESS; |
c70001a9 SC |
953 | break; |
954 | case 2: | |
955 | dev_info(dev, "loopback cable is not connected\n"); | |
b9c11984 | 956 | adapter->ahw->diag_cnt = -ENODEV; |
c70001a9 SC |
957 | break; |
958 | default: | |
d17dd0d9 SC |
959 | dev_info(dev, |
960 | "loopback configure request failed, err %x\n", | |
961 | ret); | |
b9c11984 | 962 | adapter->ahw->diag_cnt = -EIO; |
c70001a9 SC |
963 | break; |
964 | } | |
965 | break; | |
966 | default: | |
967 | break; | |
968 | } | |
969 | } | |
970 | ||
4be41e92 SC |
971 | struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter, |
972 | struct qlcnic_host_rds_ring *ring, | |
973 | u16 index, u16 cksum) | |
c70001a9 SC |
974 | { |
975 | struct qlcnic_rx_buffer *buffer; | |
976 | struct sk_buff *skb; | |
977 | ||
4be41e92 | 978 | buffer = &ring->rx_buf_arr[index]; |
c70001a9 SC |
979 | if (unlikely(buffer->skb == NULL)) { |
980 | WARN_ON(1); | |
981 | return NULL; | |
982 | } | |
983 | ||
4be41e92 | 984 | pci_unmap_single(adapter->pdev, buffer->dma, ring->dma_size, |
d17dd0d9 | 985 | PCI_DMA_FROMDEVICE); |
c70001a9 SC |
986 | |
987 | skb = buffer->skb; | |
c70001a9 | 988 | if (likely((adapter->netdev->features & NETIF_F_RXCSUM) && |
d17dd0d9 | 989 | (cksum == STATUS_CKSUM_OK || cksum == STATUS_CKSUM_LOOP))) { |
c70001a9 SC |
990 | adapter->stats.csummed++; |
991 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
992 | } else { | |
993 | skb_checksum_none_assert(skb); | |
994 | } | |
995 | ||
4be41e92 | 996 | |
c70001a9 SC |
997 | buffer->skb = NULL; |
998 | ||
999 | return skb; | |
1000 | } | |
1001 | ||
d17dd0d9 SC |
1002 | static inline int qlcnic_check_rx_tagging(struct qlcnic_adapter *adapter, |
1003 | struct sk_buff *skb, u16 *vlan_tag) | |
c70001a9 SC |
1004 | { |
1005 | struct ethhdr *eth_hdr; | |
1006 | ||
1007 | if (!__vlan_get_tag(skb, vlan_tag)) { | |
d17dd0d9 | 1008 | eth_hdr = (struct ethhdr *)skb->data; |
c70001a9 SC |
1009 | memmove(skb->data + VLAN_HLEN, eth_hdr, ETH_ALEN * 2); |
1010 | skb_pull(skb, VLAN_HLEN); | |
1011 | } | |
91b7282b | 1012 | if (!adapter->rx_pvid) |
c70001a9 SC |
1013 | return 0; |
1014 | ||
91b7282b | 1015 | if (*vlan_tag == adapter->rx_pvid) { |
c70001a9 SC |
1016 | /* Outer vlan tag. Packet should follow non-vlan path */ |
1017 | *vlan_tag = 0xffff; | |
1018 | return 0; | |
1019 | } | |
1020 | if (adapter->flags & QLCNIC_TAGGING_ENABLED) | |
1021 | return 0; | |
1022 | ||
1023 | return -EINVAL; | |
1024 | } | |
1025 | ||
1026 | static struct qlcnic_rx_buffer * | |
1027 | qlcnic_process_rcv(struct qlcnic_adapter *adapter, | |
d17dd0d9 SC |
1028 | struct qlcnic_host_sds_ring *sds_ring, int ring, |
1029 | u64 sts_data0) | |
c70001a9 SC |
1030 | { |
1031 | struct net_device *netdev = adapter->netdev; | |
1032 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1033 | struct qlcnic_rx_buffer *buffer; | |
1034 | struct sk_buff *skb; | |
1035 | struct qlcnic_host_rds_ring *rds_ring; | |
53643a75 SS |
1036 | int index, length, cksum, pkt_offset, is_lb_pkt; |
1037 | u16 vid = 0xffff, t_vid; | |
c70001a9 SC |
1038 | |
1039 | if (unlikely(ring >= adapter->max_rds_rings)) | |
1040 | return NULL; | |
1041 | ||
1042 | rds_ring = &recv_ctx->rds_rings[ring]; | |
1043 | ||
1044 | index = qlcnic_get_sts_refhandle(sts_data0); | |
1045 | if (unlikely(index >= rds_ring->num_desc)) | |
1046 | return NULL; | |
1047 | ||
1048 | buffer = &rds_ring->rx_buf_arr[index]; | |
c70001a9 SC |
1049 | length = qlcnic_get_sts_totallength(sts_data0); |
1050 | cksum = qlcnic_get_sts_status(sts_data0); | |
1051 | pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0); | |
1052 | ||
1053 | skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum); | |
1054 | if (!skb) | |
1055 | return buffer; | |
1056 | ||
53643a75 SS |
1057 | if (adapter->drv_mac_learn && |
1058 | (adapter->flags & QLCNIC_ESWITCH_ENABLED)) { | |
1059 | t_vid = 0; | |
1060 | is_lb_pkt = qlcnic_82xx_is_lb_pkt(sts_data0); | |
f80bc8fe | 1061 | qlcnic_add_lb_filter(adapter, skb, is_lb_pkt, t_vid); |
53643a75 SS |
1062 | } |
1063 | ||
c70001a9 SC |
1064 | if (length > rds_ring->skb_size) |
1065 | skb_put(skb, rds_ring->skb_size); | |
1066 | else | |
1067 | skb_put(skb, length); | |
1068 | ||
1069 | if (pkt_offset) | |
1070 | skb_pull(skb, pkt_offset); | |
1071 | ||
1072 | if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) { | |
1073 | adapter->stats.rxdropped++; | |
1074 | dev_kfree_skb(skb); | |
1075 | return buffer; | |
1076 | } | |
1077 | ||
1078 | skb->protocol = eth_type_trans(skb, netdev); | |
1079 | ||
1080 | if (vid != 0xffff) | |
86a9bad3 | 1081 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid); |
c70001a9 SC |
1082 | |
1083 | napi_gro_receive(&sds_ring->napi, skb); | |
1084 | ||
1085 | adapter->stats.rx_pkts++; | |
1086 | adapter->stats.rxbytes += length; | |
1087 | ||
1088 | return buffer; | |
1089 | } | |
1090 | ||
1091 | #define QLC_TCP_HDR_SIZE 20 | |
1092 | #define QLC_TCP_TS_OPTION_SIZE 12 | |
1093 | #define QLC_TCP_TS_HDR_SIZE (QLC_TCP_HDR_SIZE + QLC_TCP_TS_OPTION_SIZE) | |
1094 | ||
1095 | static struct qlcnic_rx_buffer * | |
1096 | qlcnic_process_lro(struct qlcnic_adapter *adapter, | |
d17dd0d9 | 1097 | int ring, u64 sts_data0, u64 sts_data1) |
c70001a9 SC |
1098 | { |
1099 | struct net_device *netdev = adapter->netdev; | |
1100 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1101 | struct qlcnic_rx_buffer *buffer; | |
1102 | struct sk_buff *skb; | |
1103 | struct qlcnic_host_rds_ring *rds_ring; | |
1104 | struct iphdr *iph; | |
776e7bde | 1105 | struct ipv6hdr *ipv6h; |
c70001a9 SC |
1106 | struct tcphdr *th; |
1107 | bool push, timestamp; | |
53643a75 SS |
1108 | int index, l2_hdr_offset, l4_hdr_offset, is_lb_pkt; |
1109 | u16 lro_length, length, data_offset, t_vid, vid = 0xffff; | |
c70001a9 | 1110 | u32 seq_number; |
c70001a9 SC |
1111 | |
1112 | if (unlikely(ring > adapter->max_rds_rings)) | |
1113 | return NULL; | |
1114 | ||
1115 | rds_ring = &recv_ctx->rds_rings[ring]; | |
1116 | ||
1117 | index = qlcnic_get_lro_sts_refhandle(sts_data0); | |
1118 | if (unlikely(index > rds_ring->num_desc)) | |
1119 | return NULL; | |
1120 | ||
1121 | buffer = &rds_ring->rx_buf_arr[index]; | |
1122 | ||
1123 | timestamp = qlcnic_get_lro_sts_timestamp(sts_data0); | |
1124 | lro_length = qlcnic_get_lro_sts_length(sts_data0); | |
1125 | l2_hdr_offset = qlcnic_get_lro_sts_l2_hdr_offset(sts_data0); | |
1126 | l4_hdr_offset = qlcnic_get_lro_sts_l4_hdr_offset(sts_data0); | |
1127 | push = qlcnic_get_lro_sts_push_flag(sts_data0); | |
1128 | seq_number = qlcnic_get_lro_sts_seq_number(sts_data1); | |
1129 | ||
1130 | skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK); | |
1131 | if (!skb) | |
1132 | return buffer; | |
1133 | ||
53643a75 SS |
1134 | if (adapter->drv_mac_learn && |
1135 | (adapter->flags & QLCNIC_ESWITCH_ENABLED)) { | |
1136 | t_vid = 0; | |
1137 | is_lb_pkt = qlcnic_82xx_is_lb_pkt(sts_data0); | |
f80bc8fe | 1138 | qlcnic_add_lb_filter(adapter, skb, is_lb_pkt, t_vid); |
53643a75 SS |
1139 | } |
1140 | ||
c70001a9 SC |
1141 | if (timestamp) |
1142 | data_offset = l4_hdr_offset + QLC_TCP_TS_HDR_SIZE; | |
1143 | else | |
1144 | data_offset = l4_hdr_offset + QLC_TCP_HDR_SIZE; | |
1145 | ||
1146 | skb_put(skb, lro_length + data_offset); | |
c70001a9 SC |
1147 | skb_pull(skb, l2_hdr_offset); |
1148 | ||
1149 | if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) { | |
1150 | adapter->stats.rxdropped++; | |
1151 | dev_kfree_skb(skb); | |
1152 | return buffer; | |
1153 | } | |
1154 | ||
1155 | skb->protocol = eth_type_trans(skb, netdev); | |
776e7bde | 1156 | |
069048f1 | 1157 | if (ntohs(skb->protocol) == ETH_P_IPV6) { |
776e7bde SS |
1158 | ipv6h = (struct ipv6hdr *)skb->data; |
1159 | th = (struct tcphdr *)(skb->data + sizeof(struct ipv6hdr)); | |
1160 | length = (th->doff << 2) + lro_length; | |
1161 | ipv6h->payload_len = htons(length); | |
1162 | } else { | |
1163 | iph = (struct iphdr *)skb->data; | |
1164 | th = (struct tcphdr *)(skb->data + (iph->ihl << 2)); | |
1165 | length = (iph->ihl << 2) + (th->doff << 2) + lro_length; | |
1bcac3b0 | 1166 | csum_replace2(&iph->check, iph->tot_len, htons(length)); |
776e7bde | 1167 | iph->tot_len = htons(length); |
776e7bde SS |
1168 | } |
1169 | ||
c70001a9 SC |
1170 | th->psh = push; |
1171 | th->seq = htonl(seq_number); | |
c70001a9 SC |
1172 | length = skb->len; |
1173 | ||
bd69ba79 | 1174 | if (adapter->flags & QLCNIC_FW_LRO_MSS_CAP) { |
c70001a9 | 1175 | skb_shinfo(skb)->gso_size = qlcnic_get_lro_sts_mss(sts_data1); |
bd69ba79 MT |
1176 | if (skb->protocol == htons(ETH_P_IPV6)) |
1177 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6; | |
1178 | else | |
1179 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; | |
1180 | } | |
c70001a9 SC |
1181 | |
1182 | if (vid != 0xffff) | |
86a9bad3 | 1183 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid); |
c70001a9 SC |
1184 | netif_receive_skb(skb); |
1185 | ||
1186 | adapter->stats.lro_pkts++; | |
1187 | adapter->stats.lrobytes += length; | |
1188 | ||
1189 | return buffer; | |
1190 | } | |
1191 | ||
d17dd0d9 | 1192 | int qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max) |
c70001a9 | 1193 | { |
d17dd0d9 | 1194 | struct qlcnic_host_rds_ring *rds_ring; |
c70001a9 SC |
1195 | struct qlcnic_adapter *adapter = sds_ring->adapter; |
1196 | struct list_head *cur; | |
1197 | struct status_desc *desc; | |
1198 | struct qlcnic_rx_buffer *rxbuf; | |
4be41e92 | 1199 | int opcode, desc_cnt, count = 0; |
c70001a9 | 1200 | u64 sts_data0, sts_data1; |
4be41e92 | 1201 | u8 ring; |
c70001a9 SC |
1202 | u32 consumer = sds_ring->consumer; |
1203 | ||
1204 | while (count < max) { | |
1205 | desc = &sds_ring->desc_head[consumer]; | |
1206 | sts_data0 = le64_to_cpu(desc->status_desc_data[0]); | |
1207 | ||
1208 | if (!(sts_data0 & STATUS_OWNER_HOST)) | |
1209 | break; | |
1210 | ||
1211 | desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0); | |
1212 | opcode = qlcnic_get_sts_opcode(sts_data0); | |
c70001a9 SC |
1213 | switch (opcode) { |
1214 | case QLCNIC_RXPKT_DESC: | |
1215 | case QLCNIC_OLD_RXPKT_DESC: | |
1216 | case QLCNIC_SYN_OFFLOAD: | |
1217 | ring = qlcnic_get_sts_type(sts_data0); | |
d17dd0d9 SC |
1218 | rxbuf = qlcnic_process_rcv(adapter, sds_ring, ring, |
1219 | sts_data0); | |
c70001a9 SC |
1220 | break; |
1221 | case QLCNIC_LRO_DESC: | |
1222 | ring = qlcnic_get_lro_sts_type(sts_data0); | |
1223 | sts_data1 = le64_to_cpu(desc->status_desc_data[1]); | |
1224 | rxbuf = qlcnic_process_lro(adapter, ring, sts_data0, | |
1225 | sts_data1); | |
1226 | break; | |
1227 | case QLCNIC_RESPONSE_DESC: | |
1228 | qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring); | |
1229 | default: | |
1230 | goto skip; | |
1231 | } | |
c70001a9 SC |
1232 | WARN_ON(desc_cnt > 1); |
1233 | ||
1234 | if (likely(rxbuf)) | |
1235 | list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]); | |
1236 | else | |
1237 | adapter->stats.null_rxbuf++; | |
c70001a9 SC |
1238 | skip: |
1239 | for (; desc_cnt > 0; desc_cnt--) { | |
1240 | desc = &sds_ring->desc_head[consumer]; | |
4be41e92 | 1241 | desc->status_desc_data[0] = QLCNIC_DESC_OWNER_FW; |
c70001a9 SC |
1242 | consumer = get_next_index(consumer, sds_ring->num_desc); |
1243 | } | |
1244 | count++; | |
1245 | } | |
1246 | ||
1247 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { | |
d17dd0d9 | 1248 | rds_ring = &adapter->recv_ctx->rds_rings[ring]; |
c70001a9 SC |
1249 | if (!list_empty(&sds_ring->free_list[ring])) { |
1250 | list_for_each(cur, &sds_ring->free_list[ring]) { | |
d17dd0d9 SC |
1251 | rxbuf = list_entry(cur, struct qlcnic_rx_buffer, |
1252 | list); | |
c70001a9 SC |
1253 | qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf); |
1254 | } | |
1255 | spin_lock(&rds_ring->lock); | |
1256 | list_splice_tail_init(&sds_ring->free_list[ring], | |
d17dd0d9 | 1257 | &rds_ring->free_list); |
c70001a9 SC |
1258 | spin_unlock(&rds_ring->lock); |
1259 | } | |
1260 | ||
4be41e92 | 1261 | qlcnic_post_rx_buffers_nodb(adapter, rds_ring, ring); |
c70001a9 SC |
1262 | } |
1263 | ||
1264 | if (count) { | |
1265 | sds_ring->consumer = consumer; | |
1266 | writel(consumer, sds_ring->crb_sts_consumer); | |
1267 | } | |
1268 | ||
1269 | return count; | |
1270 | } | |
1271 | ||
d17dd0d9 | 1272 | void qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, |
4be41e92 | 1273 | struct qlcnic_host_rds_ring *rds_ring, u8 ring_id) |
c70001a9 SC |
1274 | { |
1275 | struct rcv_desc *pdesc; | |
1276 | struct qlcnic_rx_buffer *buffer; | |
1277 | int count = 0; | |
4be41e92 | 1278 | u32 producer, handle; |
c70001a9 SC |
1279 | struct list_head *head; |
1280 | ||
1281 | producer = rds_ring->producer; | |
c70001a9 | 1282 | head = &rds_ring->free_list; |
d17dd0d9 | 1283 | |
c70001a9 SC |
1284 | while (!list_empty(head)) { |
1285 | ||
1286 | buffer = list_entry(head->next, struct qlcnic_rx_buffer, list); | |
1287 | ||
1288 | if (!buffer->skb) { | |
1289 | if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer)) | |
1290 | break; | |
1291 | } | |
1292 | ||
1293 | count++; | |
1294 | list_del(&buffer->list); | |
1295 | ||
1296 | /* make a rcv descriptor */ | |
1297 | pdesc = &rds_ring->desc_head[producer]; | |
1298 | pdesc->addr_buffer = cpu_to_le64(buffer->dma); | |
4be41e92 SC |
1299 | handle = qlcnic_get_ref_handle(adapter, buffer->ref_handle, |
1300 | ring_id); | |
1301 | pdesc->reference_handle = cpu_to_le16(handle); | |
c70001a9 | 1302 | pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); |
c70001a9 SC |
1303 | producer = get_next_index(producer, rds_ring->num_desc); |
1304 | } | |
1305 | ||
1306 | if (count) { | |
1307 | rds_ring->producer = producer; | |
1308 | writel((producer-1) & (rds_ring->num_desc-1), | |
d17dd0d9 | 1309 | rds_ring->crb_rcv_producer); |
c70001a9 SC |
1310 | } |
1311 | } | |
1312 | ||
1313 | static void dump_skb(struct sk_buff *skb, struct qlcnic_adapter *adapter) | |
1314 | { | |
1315 | int i; | |
1316 | unsigned char *data = skb->data; | |
1317 | ||
d17dd0d9 | 1318 | pr_info(KERN_INFO "\n"); |
c70001a9 SC |
1319 | for (i = 0; i < skb->len; i++) { |
1320 | QLCDB(adapter, DRV, "%02x ", data[i]); | |
1321 | if ((i & 0x0f) == 8) | |
d17dd0d9 | 1322 | pr_info(KERN_INFO "\n"); |
c70001a9 SC |
1323 | } |
1324 | } | |
1325 | ||
1326 | static void qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter, int ring, | |
1327 | u64 sts_data0) | |
1328 | { | |
1329 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1330 | struct sk_buff *skb; | |
1331 | struct qlcnic_host_rds_ring *rds_ring; | |
1332 | int index, length, cksum, pkt_offset; | |
1333 | ||
1334 | if (unlikely(ring >= adapter->max_rds_rings)) | |
1335 | return; | |
1336 | ||
1337 | rds_ring = &recv_ctx->rds_rings[ring]; | |
1338 | ||
1339 | index = qlcnic_get_sts_refhandle(sts_data0); | |
1340 | length = qlcnic_get_sts_totallength(sts_data0); | |
1341 | if (unlikely(index >= rds_ring->num_desc)) | |
1342 | return; | |
1343 | ||
1344 | cksum = qlcnic_get_sts_status(sts_data0); | |
1345 | pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0); | |
1346 | ||
1347 | skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum); | |
1348 | if (!skb) | |
1349 | return; | |
1350 | ||
1351 | if (length > rds_ring->skb_size) | |
1352 | skb_put(skb, rds_ring->skb_size); | |
1353 | else | |
1354 | skb_put(skb, length); | |
1355 | ||
1356 | if (pkt_offset) | |
1357 | skb_pull(skb, pkt_offset); | |
1358 | ||
1359 | if (!qlcnic_check_loopback_buff(skb->data, adapter->mac_addr)) | |
79788450 | 1360 | adapter->ahw->diag_cnt++; |
c70001a9 SC |
1361 | else |
1362 | dump_skb(skb, adapter); | |
1363 | ||
1364 | dev_kfree_skb_any(skb); | |
1365 | adapter->stats.rx_pkts++; | |
1366 | adapter->stats.rxbytes += length; | |
1367 | ||
1368 | return; | |
1369 | } | |
1370 | ||
7e2cf4fe | 1371 | void qlcnic_82xx_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring) |
c70001a9 SC |
1372 | { |
1373 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
1374 | struct status_desc *desc; | |
1375 | u64 sts_data0; | |
1376 | int ring, opcode, desc_cnt; | |
1377 | ||
1378 | u32 consumer = sds_ring->consumer; | |
1379 | ||
1380 | desc = &sds_ring->desc_head[consumer]; | |
1381 | sts_data0 = le64_to_cpu(desc->status_desc_data[0]); | |
1382 | ||
1383 | if (!(sts_data0 & STATUS_OWNER_HOST)) | |
1384 | return; | |
1385 | ||
1386 | desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0); | |
1387 | opcode = qlcnic_get_sts_opcode(sts_data0); | |
1388 | switch (opcode) { | |
1389 | case QLCNIC_RESPONSE_DESC: | |
1390 | qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring); | |
1391 | break; | |
1392 | default: | |
1393 | ring = qlcnic_get_sts_type(sts_data0); | |
1394 | qlcnic_process_rcv_diag(adapter, ring, sts_data0); | |
1395 | break; | |
1396 | } | |
1397 | ||
1398 | for (; desc_cnt > 0; desc_cnt--) { | |
1399 | desc = &sds_ring->desc_head[consumer]; | |
1400 | desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM); | |
1401 | consumer = get_next_index(consumer, sds_ring->num_desc); | |
1402 | } | |
1403 | ||
1404 | sds_ring->consumer = consumer; | |
1405 | writel(consumer, sds_ring->crb_sts_consumer); | |
1406 | } | |
1407 | ||
7e2cf4fe SC |
1408 | int qlcnic_82xx_napi_add(struct qlcnic_adapter *adapter, |
1409 | struct net_device *netdev) | |
c70001a9 | 1410 | { |
d17dd0d9 | 1411 | int ring, max_sds_rings; |
c70001a9 SC |
1412 | struct qlcnic_host_sds_ring *sds_ring; |
1413 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1414 | ||
1415 | if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) | |
1416 | return -ENOMEM; | |
1417 | ||
d17dd0d9 SC |
1418 | max_sds_rings = adapter->max_sds_rings; |
1419 | ||
c70001a9 SC |
1420 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
1421 | sds_ring = &recv_ctx->sds_rings[ring]; | |
4be41e92 | 1422 | if (ring == adapter->max_sds_rings - 1) |
c70001a9 | 1423 | netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll, |
d17dd0d9 | 1424 | QLCNIC_NETDEV_WEIGHT / max_sds_rings); |
c70001a9 | 1425 | else |
d17dd0d9 SC |
1426 | netif_napi_add(netdev, &sds_ring->napi, qlcnic_rx_poll, |
1427 | QLCNIC_NETDEV_WEIGHT*2); | |
c70001a9 SC |
1428 | } |
1429 | ||
4be41e92 SC |
1430 | if (qlcnic_alloc_tx_rings(adapter, netdev)) { |
1431 | qlcnic_free_sds_rings(recv_ctx); | |
1432 | return -ENOMEM; | |
1433 | } | |
1434 | ||
c70001a9 SC |
1435 | return 0; |
1436 | } | |
1437 | ||
4be41e92 | 1438 | void qlcnic_82xx_napi_del(struct qlcnic_adapter *adapter) |
c70001a9 SC |
1439 | { |
1440 | int ring; | |
1441 | struct qlcnic_host_sds_ring *sds_ring; | |
1442 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1443 | ||
1444 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
1445 | sds_ring = &recv_ctx->sds_rings[ring]; | |
1446 | netif_napi_del(&sds_ring->napi); | |
1447 | } | |
1448 | ||
1449 | qlcnic_free_sds_rings(adapter->recv_ctx); | |
4be41e92 | 1450 | qlcnic_free_tx_rings(adapter); |
c70001a9 SC |
1451 | } |
1452 | ||
7e2cf4fe | 1453 | void qlcnic_82xx_napi_enable(struct qlcnic_adapter *adapter) |
c70001a9 SC |
1454 | { |
1455 | int ring; | |
1456 | struct qlcnic_host_sds_ring *sds_ring; | |
1457 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1458 | ||
1459 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
1460 | return; | |
1461 | ||
1462 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
1463 | sds_ring = &recv_ctx->sds_rings[ring]; | |
1464 | napi_enable(&sds_ring->napi); | |
1465 | qlcnic_enable_int(sds_ring); | |
1466 | } | |
1467 | } | |
1468 | ||
7e2cf4fe | 1469 | void qlcnic_82xx_napi_disable(struct qlcnic_adapter *adapter) |
c70001a9 SC |
1470 | { |
1471 | int ring; | |
1472 | struct qlcnic_host_sds_ring *sds_ring; | |
1473 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1474 | ||
1475 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
1476 | return; | |
1477 | ||
1478 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
1479 | sds_ring = &recv_ctx->sds_rings[ring]; | |
1480 | qlcnic_disable_int(sds_ring); | |
1481 | napi_synchronize(&sds_ring->napi); | |
1482 | napi_disable(&sds_ring->napi); | |
1483 | } | |
1484 | } | |
4be41e92 | 1485 | |
53643a75 SS |
1486 | #define QLC_83XX_NORMAL_LB_PKT (1ULL << 36) |
1487 | #define QLC_83XX_LRO_LB_PKT (1ULL << 46) | |
1488 | ||
1489 | static inline int qlcnic_83xx_is_lb_pkt(u64 sts_data, int lro_pkt) | |
1490 | { | |
1491 | if (lro_pkt) | |
1492 | return (sts_data & QLC_83XX_LRO_LB_PKT) ? 1 : 0; | |
1493 | else | |
1494 | return (sts_data & QLC_83XX_NORMAL_LB_PKT) ? 1 : 0; | |
1495 | } | |
1496 | ||
4be41e92 SC |
1497 | static struct qlcnic_rx_buffer * |
1498 | qlcnic_83xx_process_rcv(struct qlcnic_adapter *adapter, | |
1499 | struct qlcnic_host_sds_ring *sds_ring, | |
1500 | u8 ring, u64 sts_data[]) | |
1501 | { | |
1502 | struct net_device *netdev = adapter->netdev; | |
1503 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1504 | struct qlcnic_rx_buffer *buffer; | |
1505 | struct sk_buff *skb; | |
1506 | struct qlcnic_host_rds_ring *rds_ring; | |
53643a75 SS |
1507 | int index, length, cksum, is_lb_pkt; |
1508 | u16 vid = 0xffff, t_vid; | |
4be41e92 SC |
1509 | |
1510 | if (unlikely(ring >= adapter->max_rds_rings)) | |
1511 | return NULL; | |
1512 | ||
1513 | rds_ring = &recv_ctx->rds_rings[ring]; | |
1514 | ||
1515 | index = qlcnic_83xx_hndl(sts_data[0]); | |
1516 | if (unlikely(index >= rds_ring->num_desc)) | |
1517 | return NULL; | |
1518 | ||
1519 | buffer = &rds_ring->rx_buf_arr[index]; | |
1520 | length = qlcnic_83xx_pktln(sts_data[0]); | |
1521 | cksum = qlcnic_83xx_csum_status(sts_data[1]); | |
1522 | skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum); | |
1523 | if (!skb) | |
1524 | return buffer; | |
1525 | ||
53643a75 SS |
1526 | if (adapter->drv_mac_learn && |
1527 | (adapter->flags & QLCNIC_ESWITCH_ENABLED)) { | |
1528 | t_vid = 0; | |
1529 | is_lb_pkt = qlcnic_83xx_is_lb_pkt(sts_data[1], 0); | |
f80bc8fe | 1530 | qlcnic_add_lb_filter(adapter, skb, is_lb_pkt, t_vid); |
53643a75 SS |
1531 | } |
1532 | ||
4be41e92 SC |
1533 | if (length > rds_ring->skb_size) |
1534 | skb_put(skb, rds_ring->skb_size); | |
1535 | else | |
1536 | skb_put(skb, length); | |
1537 | ||
1538 | if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) { | |
1539 | adapter->stats.rxdropped++; | |
1540 | dev_kfree_skb(skb); | |
1541 | return buffer; | |
1542 | } | |
1543 | ||
1544 | skb->protocol = eth_type_trans(skb, netdev); | |
1545 | ||
1546 | if (vid != 0xffff) | |
86a9bad3 | 1547 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid); |
4be41e92 SC |
1548 | |
1549 | napi_gro_receive(&sds_ring->napi, skb); | |
1550 | ||
1551 | adapter->stats.rx_pkts++; | |
1552 | adapter->stats.rxbytes += length; | |
1553 | ||
1554 | return buffer; | |
1555 | } | |
1556 | ||
1557 | static struct qlcnic_rx_buffer * | |
1558 | qlcnic_83xx_process_lro(struct qlcnic_adapter *adapter, | |
1559 | u8 ring, u64 sts_data[]) | |
1560 | { | |
1561 | struct net_device *netdev = adapter->netdev; | |
1562 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1563 | struct qlcnic_rx_buffer *buffer; | |
1564 | struct sk_buff *skb; | |
1565 | struct qlcnic_host_rds_ring *rds_ring; | |
1566 | struct iphdr *iph; | |
1567 | struct ipv6hdr *ipv6h; | |
1568 | struct tcphdr *th; | |
1569 | bool push; | |
1570 | int l2_hdr_offset, l4_hdr_offset; | |
53643a75 | 1571 | int index, is_lb_pkt; |
99e85879 | 1572 | u16 lro_length, length, data_offset, gso_size; |
53643a75 | 1573 | u16 vid = 0xffff, t_vid; |
4be41e92 SC |
1574 | |
1575 | if (unlikely(ring > adapter->max_rds_rings)) | |
1576 | return NULL; | |
1577 | ||
1578 | rds_ring = &recv_ctx->rds_rings[ring]; | |
1579 | ||
1580 | index = qlcnic_83xx_hndl(sts_data[0]); | |
1581 | if (unlikely(index > rds_ring->num_desc)) | |
1582 | return NULL; | |
1583 | ||
1584 | buffer = &rds_ring->rx_buf_arr[index]; | |
1585 | ||
1586 | lro_length = qlcnic_83xx_lro_pktln(sts_data[0]); | |
1587 | l2_hdr_offset = qlcnic_83xx_l2_hdr_off(sts_data[1]); | |
1588 | l4_hdr_offset = qlcnic_83xx_l4_hdr_off(sts_data[1]); | |
1589 | push = qlcnic_83xx_is_psh_bit(sts_data[1]); | |
1590 | ||
1591 | skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK); | |
1592 | if (!skb) | |
1593 | return buffer; | |
53643a75 SS |
1594 | |
1595 | if (adapter->drv_mac_learn && | |
1596 | (adapter->flags & QLCNIC_ESWITCH_ENABLED)) { | |
1597 | t_vid = 0; | |
1598 | is_lb_pkt = qlcnic_83xx_is_lb_pkt(sts_data[1], 1); | |
f80bc8fe | 1599 | qlcnic_add_lb_filter(adapter, skb, is_lb_pkt, t_vid); |
53643a75 | 1600 | } |
4be41e92 SC |
1601 | if (qlcnic_83xx_is_tstamp(sts_data[1])) |
1602 | data_offset = l4_hdr_offset + QLCNIC_TCP_TS_HDR_SIZE; | |
1603 | else | |
1604 | data_offset = l4_hdr_offset + QLCNIC_TCP_HDR_SIZE; | |
1605 | ||
1606 | skb_put(skb, lro_length + data_offset); | |
1607 | skb_pull(skb, l2_hdr_offset); | |
1608 | ||
1609 | if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) { | |
1610 | adapter->stats.rxdropped++; | |
1611 | dev_kfree_skb(skb); | |
1612 | return buffer; | |
1613 | } | |
1614 | ||
1615 | skb->protocol = eth_type_trans(skb, netdev); | |
1616 | if (ntohs(skb->protocol) == ETH_P_IPV6) { | |
1617 | ipv6h = (struct ipv6hdr *)skb->data; | |
1618 | th = (struct tcphdr *)(skb->data + sizeof(struct ipv6hdr)); | |
1619 | ||
1620 | length = (th->doff << 2) + lro_length; | |
1621 | ipv6h->payload_len = htons(length); | |
1622 | } else { | |
1623 | iph = (struct iphdr *)skb->data; | |
1624 | th = (struct tcphdr *)(skb->data + (iph->ihl << 2)); | |
1625 | length = (iph->ihl << 2) + (th->doff << 2) + lro_length; | |
1bcac3b0 | 1626 | csum_replace2(&iph->check, iph->tot_len, htons(length)); |
4be41e92 | 1627 | iph->tot_len = htons(length); |
4be41e92 SC |
1628 | } |
1629 | ||
1630 | th->psh = push; | |
1631 | length = skb->len; | |
1632 | ||
99e85879 SS |
1633 | if (adapter->flags & QLCNIC_FW_LRO_MSS_CAP) { |
1634 | gso_size = qlcnic_83xx_get_lro_sts_mss(sts_data[0]); | |
1635 | skb_shinfo(skb)->gso_size = gso_size; | |
1636 | if (skb->protocol == htons(ETH_P_IPV6)) | |
1637 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6; | |
1638 | else | |
1639 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; | |
1640 | } | |
1641 | ||
4be41e92 | 1642 | if (vid != 0xffff) |
86a9bad3 | 1643 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid); |
4be41e92 SC |
1644 | |
1645 | netif_receive_skb(skb); | |
1646 | ||
1647 | adapter->stats.lro_pkts++; | |
1648 | adapter->stats.lrobytes += length; | |
1649 | return buffer; | |
1650 | } | |
1651 | ||
1652 | static int qlcnic_83xx_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, | |
1653 | int max) | |
1654 | { | |
1655 | struct qlcnic_host_rds_ring *rds_ring; | |
1656 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
1657 | struct list_head *cur; | |
1658 | struct status_desc *desc; | |
1659 | struct qlcnic_rx_buffer *rxbuf = NULL; | |
1660 | u8 ring; | |
1661 | u64 sts_data[2]; | |
1662 | int count = 0, opcode; | |
1663 | u32 consumer = sds_ring->consumer; | |
1664 | ||
1665 | while (count < max) { | |
1666 | desc = &sds_ring->desc_head[consumer]; | |
1667 | sts_data[1] = le64_to_cpu(desc->status_desc_data[1]); | |
1668 | opcode = qlcnic_83xx_opcode(sts_data[1]); | |
1669 | if (!opcode) | |
1670 | break; | |
1671 | sts_data[0] = le64_to_cpu(desc->status_desc_data[0]); | |
1672 | ring = QLCNIC_FETCH_RING_ID(sts_data[0]); | |
1673 | ||
1674 | switch (opcode) { | |
1675 | case QLC_83XX_REG_DESC: | |
1676 | rxbuf = qlcnic_83xx_process_rcv(adapter, sds_ring, | |
1677 | ring, sts_data); | |
1678 | break; | |
1679 | case QLC_83XX_LRO_DESC: | |
1680 | rxbuf = qlcnic_83xx_process_lro(adapter, ring, | |
1681 | sts_data); | |
1682 | break; | |
1683 | default: | |
1684 | dev_info(&adapter->pdev->dev, | |
1685 | "Unkonwn opcode: 0x%x\n", opcode); | |
1686 | goto skip; | |
1687 | } | |
1688 | ||
1689 | if (likely(rxbuf)) | |
1690 | list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]); | |
1691 | else | |
1692 | adapter->stats.null_rxbuf++; | |
1693 | skip: | |
1694 | desc = &sds_ring->desc_head[consumer]; | |
1695 | /* Reset the descriptor */ | |
1696 | desc->status_desc_data[1] = 0; | |
1697 | consumer = get_next_index(consumer, sds_ring->num_desc); | |
1698 | count++; | |
1699 | } | |
1700 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { | |
1701 | rds_ring = &adapter->recv_ctx->rds_rings[ring]; | |
1702 | if (!list_empty(&sds_ring->free_list[ring])) { | |
1703 | list_for_each(cur, &sds_ring->free_list[ring]) { | |
1704 | rxbuf = list_entry(cur, struct qlcnic_rx_buffer, | |
1705 | list); | |
1706 | qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf); | |
1707 | } | |
1708 | spin_lock(&rds_ring->lock); | |
1709 | list_splice_tail_init(&sds_ring->free_list[ring], | |
1710 | &rds_ring->free_list); | |
1711 | spin_unlock(&rds_ring->lock); | |
1712 | } | |
1713 | qlcnic_post_rx_buffers_nodb(adapter, rds_ring, ring); | |
1714 | } | |
1715 | if (count) { | |
1716 | sds_ring->consumer = consumer; | |
1717 | writel(consumer, sds_ring->crb_sts_consumer); | |
1718 | } | |
1719 | return count; | |
1720 | } | |
1721 | ||
da6c8063 RB |
1722 | static int qlcnic_83xx_msix_sriov_vf_poll(struct napi_struct *napi, int budget) |
1723 | { | |
1724 | int tx_complete; | |
1725 | int work_done; | |
1726 | struct qlcnic_host_sds_ring *sds_ring; | |
1727 | struct qlcnic_adapter *adapter; | |
1728 | struct qlcnic_host_tx_ring *tx_ring; | |
1729 | ||
1730 | sds_ring = container_of(napi, struct qlcnic_host_sds_ring, napi); | |
1731 | adapter = sds_ring->adapter; | |
1732 | /* tx ring count = 1 */ | |
1733 | tx_ring = adapter->tx_ring; | |
1734 | ||
1735 | tx_complete = qlcnic_process_cmd_ring(adapter, tx_ring, budget); | |
1736 | work_done = qlcnic_83xx_process_rcv_ring(sds_ring, budget); | |
1737 | if ((work_done < budget) && tx_complete) { | |
1738 | napi_complete(&sds_ring->napi); | |
1739 | qlcnic_83xx_enable_intr(adapter, sds_ring); | |
1740 | } | |
1741 | ||
1742 | return work_done; | |
1743 | } | |
1744 | ||
4be41e92 SC |
1745 | static int qlcnic_83xx_poll(struct napi_struct *napi, int budget) |
1746 | { | |
1747 | int tx_complete; | |
1748 | int work_done; | |
1749 | struct qlcnic_host_sds_ring *sds_ring; | |
1750 | struct qlcnic_adapter *adapter; | |
1751 | struct qlcnic_host_tx_ring *tx_ring; | |
1752 | ||
1753 | sds_ring = container_of(napi, struct qlcnic_host_sds_ring, napi); | |
1754 | adapter = sds_ring->adapter; | |
1755 | /* tx ring count = 1 */ | |
1756 | tx_ring = adapter->tx_ring; | |
1757 | ||
4be41e92 SC |
1758 | tx_complete = qlcnic_process_cmd_ring(adapter, tx_ring, budget); |
1759 | work_done = qlcnic_83xx_process_rcv_ring(sds_ring, budget); | |
1760 | if ((work_done < budget) && tx_complete) { | |
1761 | napi_complete(&sds_ring->napi); | |
ac166700 | 1762 | qlcnic_83xx_enable_intr(adapter, sds_ring); |
4be41e92 SC |
1763 | } |
1764 | ||
1765 | return work_done; | |
1766 | } | |
1767 | ||
1768 | static int qlcnic_83xx_msix_tx_poll(struct napi_struct *napi, int budget) | |
1769 | { | |
1770 | int work_done; | |
1771 | struct qlcnic_host_tx_ring *tx_ring; | |
1772 | struct qlcnic_adapter *adapter; | |
1773 | ||
1774 | budget = QLCNIC_TX_POLL_BUDGET; | |
1775 | tx_ring = container_of(napi, struct qlcnic_host_tx_ring, napi); | |
1776 | adapter = tx_ring->adapter; | |
1777 | work_done = qlcnic_process_cmd_ring(adapter, tx_ring, budget); | |
1778 | if (work_done) { | |
1779 | napi_complete(&tx_ring->napi); | |
1780 | if (test_bit(__QLCNIC_DEV_UP , &adapter->state)) | |
1781 | qlcnic_83xx_enable_tx_intr(adapter, tx_ring); | |
1782 | } | |
1783 | ||
1784 | return work_done; | |
1785 | } | |
1786 | ||
1787 | static int qlcnic_83xx_rx_poll(struct napi_struct *napi, int budget) | |
1788 | { | |
1789 | int work_done; | |
1790 | struct qlcnic_host_sds_ring *sds_ring; | |
1791 | struct qlcnic_adapter *adapter; | |
1792 | ||
1793 | sds_ring = container_of(napi, struct qlcnic_host_sds_ring, napi); | |
1794 | adapter = sds_ring->adapter; | |
1795 | work_done = qlcnic_83xx_process_rcv_ring(sds_ring, budget); | |
1796 | if (work_done < budget) { | |
1797 | napi_complete(&sds_ring->napi); | |
1798 | if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) | |
1799 | qlcnic_83xx_enable_intr(adapter, sds_ring); | |
1800 | } | |
1801 | ||
1802 | return work_done; | |
1803 | } | |
1804 | ||
1805 | void qlcnic_83xx_napi_enable(struct qlcnic_adapter *adapter) | |
1806 | { | |
1807 | int ring; | |
1808 | struct qlcnic_host_sds_ring *sds_ring; | |
1809 | struct qlcnic_host_tx_ring *tx_ring; | |
1810 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1811 | ||
1812 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
1813 | return; | |
1814 | ||
1815 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
1816 | sds_ring = &recv_ctx->sds_rings[ring]; | |
1817 | napi_enable(&sds_ring->napi); | |
ac166700 HM |
1818 | if (adapter->flags & QLCNIC_MSIX_ENABLED) |
1819 | qlcnic_83xx_enable_intr(adapter, sds_ring); | |
4be41e92 SC |
1820 | } |
1821 | ||
da6c8063 RB |
1822 | if ((adapter->flags & QLCNIC_MSIX_ENABLED) && |
1823 | !(adapter->flags & QLCNIC_TX_INTR_SHARED)) { | |
4be41e92 SC |
1824 | for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) { |
1825 | tx_ring = &adapter->tx_ring[ring]; | |
1826 | napi_enable(&tx_ring->napi); | |
1827 | qlcnic_83xx_enable_tx_intr(adapter, tx_ring); | |
1828 | } | |
1829 | } | |
1830 | } | |
1831 | ||
1832 | void qlcnic_83xx_napi_disable(struct qlcnic_adapter *adapter) | |
1833 | { | |
1834 | int ring; | |
1835 | struct qlcnic_host_sds_ring *sds_ring; | |
1836 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1837 | struct qlcnic_host_tx_ring *tx_ring; | |
1838 | ||
1839 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
1840 | return; | |
1841 | ||
1842 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
1843 | sds_ring = &recv_ctx->sds_rings[ring]; | |
ac166700 HM |
1844 | if (adapter->flags & QLCNIC_MSIX_ENABLED) |
1845 | qlcnic_83xx_disable_intr(adapter, sds_ring); | |
4be41e92 SC |
1846 | napi_synchronize(&sds_ring->napi); |
1847 | napi_disable(&sds_ring->napi); | |
1848 | } | |
1849 | ||
da6c8063 RB |
1850 | if ((adapter->flags & QLCNIC_MSIX_ENABLED) && |
1851 | !(adapter->flags & QLCNIC_TX_INTR_SHARED)) { | |
4be41e92 SC |
1852 | for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) { |
1853 | tx_ring = &adapter->tx_ring[ring]; | |
1854 | qlcnic_83xx_disable_tx_intr(adapter, tx_ring); | |
1855 | napi_synchronize(&tx_ring->napi); | |
1856 | napi_disable(&tx_ring->napi); | |
1857 | } | |
1858 | } | |
1859 | } | |
1860 | ||
1861 | int qlcnic_83xx_napi_add(struct qlcnic_adapter *adapter, | |
1862 | struct net_device *netdev) | |
1863 | { | |
da6c8063 | 1864 | int ring, max_sds_rings, temp; |
4be41e92 SC |
1865 | struct qlcnic_host_sds_ring *sds_ring; |
1866 | struct qlcnic_host_tx_ring *tx_ring; | |
1867 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1868 | ||
1869 | if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) | |
1870 | return -ENOMEM; | |
1871 | ||
1872 | max_sds_rings = adapter->max_sds_rings; | |
1873 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
1874 | sds_ring = &recv_ctx->sds_rings[ring]; | |
da6c8063 RB |
1875 | if (adapter->flags & QLCNIC_MSIX_ENABLED) { |
1876 | if (!(adapter->flags & QLCNIC_TX_INTR_SHARED)) { | |
1877 | netif_napi_add(netdev, &sds_ring->napi, | |
1878 | qlcnic_83xx_rx_poll, | |
1879 | QLCNIC_NETDEV_WEIGHT * 2); | |
1880 | } else { | |
1881 | temp = QLCNIC_NETDEV_WEIGHT / max_sds_rings; | |
1882 | netif_napi_add(netdev, &sds_ring->napi, | |
1883 | qlcnic_83xx_msix_sriov_vf_poll, | |
1884 | temp); | |
1885 | } | |
1886 | ||
1887 | } else { | |
4be41e92 SC |
1888 | netif_napi_add(netdev, &sds_ring->napi, |
1889 | qlcnic_83xx_poll, | |
1890 | QLCNIC_NETDEV_WEIGHT / max_sds_rings); | |
da6c8063 | 1891 | } |
4be41e92 SC |
1892 | } |
1893 | ||
1894 | if (qlcnic_alloc_tx_rings(adapter, netdev)) { | |
1895 | qlcnic_free_sds_rings(recv_ctx); | |
1896 | return -ENOMEM; | |
1897 | } | |
1898 | ||
da6c8063 RB |
1899 | if ((adapter->flags & QLCNIC_MSIX_ENABLED) && |
1900 | !(adapter->flags & QLCNIC_TX_INTR_SHARED)) { | |
4be41e92 SC |
1901 | for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) { |
1902 | tx_ring = &adapter->tx_ring[ring]; | |
1903 | netif_napi_add(netdev, &tx_ring->napi, | |
1904 | qlcnic_83xx_msix_tx_poll, | |
1905 | QLCNIC_NETDEV_WEIGHT); | |
1906 | } | |
1907 | } | |
1908 | ||
1909 | return 0; | |
1910 | } | |
1911 | ||
1912 | void qlcnic_83xx_napi_del(struct qlcnic_adapter *adapter) | |
1913 | { | |
1914 | int ring; | |
1915 | struct qlcnic_host_sds_ring *sds_ring; | |
1916 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1917 | struct qlcnic_host_tx_ring *tx_ring; | |
1918 | ||
1919 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
1920 | sds_ring = &recv_ctx->sds_rings[ring]; | |
1921 | netif_napi_del(&sds_ring->napi); | |
1922 | } | |
1923 | ||
1924 | qlcnic_free_sds_rings(adapter->recv_ctx); | |
1925 | ||
da6c8063 RB |
1926 | if ((adapter->flags & QLCNIC_MSIX_ENABLED) && |
1927 | !(adapter->flags & QLCNIC_TX_INTR_SHARED)) { | |
4be41e92 SC |
1928 | for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) { |
1929 | tx_ring = &adapter->tx_ring[ring]; | |
1930 | netif_napi_del(&tx_ring->napi); | |
1931 | } | |
1932 | } | |
1933 | ||
1934 | qlcnic_free_tx_rings(adapter); | |
1935 | } | |
1936 | ||
1937 | void qlcnic_83xx_process_rcv_diag(struct qlcnic_adapter *adapter, | |
1938 | int ring, u64 sts_data[]) | |
1939 | { | |
1940 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1941 | struct sk_buff *skb; | |
1942 | struct qlcnic_host_rds_ring *rds_ring; | |
1943 | int index, length; | |
1944 | ||
1945 | if (unlikely(ring >= adapter->max_rds_rings)) | |
1946 | return; | |
1947 | ||
1948 | rds_ring = &recv_ctx->rds_rings[ring]; | |
1949 | index = qlcnic_83xx_hndl(sts_data[0]); | |
1950 | if (unlikely(index >= rds_ring->num_desc)) | |
1951 | return; | |
1952 | ||
1953 | length = qlcnic_83xx_pktln(sts_data[0]); | |
1954 | ||
1955 | skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK); | |
1956 | if (!skb) | |
1957 | return; | |
1958 | ||
1959 | if (length > rds_ring->skb_size) | |
1960 | skb_put(skb, rds_ring->skb_size); | |
1961 | else | |
1962 | skb_put(skb, length); | |
1963 | ||
1964 | if (!qlcnic_check_loopback_buff(skb->data, adapter->mac_addr)) | |
1965 | adapter->ahw->diag_cnt++; | |
1966 | else | |
1967 | dump_skb(skb, adapter); | |
1968 | ||
1969 | dev_kfree_skb_any(skb); | |
1970 | return; | |
1971 | } | |
1972 | ||
1973 | void qlcnic_83xx_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring) | |
1974 | { | |
1975 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
1976 | struct status_desc *desc; | |
1977 | u64 sts_data[2]; | |
1978 | int ring, opcode; | |
1979 | u32 consumer = sds_ring->consumer; | |
1980 | ||
1981 | desc = &sds_ring->desc_head[consumer]; | |
1982 | sts_data[0] = le64_to_cpu(desc->status_desc_data[0]); | |
1983 | sts_data[1] = le64_to_cpu(desc->status_desc_data[1]); | |
1984 | opcode = qlcnic_83xx_opcode(sts_data[1]); | |
1985 | if (!opcode) | |
1986 | return; | |
1987 | ||
1988 | ring = QLCNIC_FETCH_RING_ID(qlcnic_83xx_hndl(sts_data[0])); | |
1989 | qlcnic_83xx_process_rcv_diag(adapter, ring, sts_data); | |
1990 | desc = &sds_ring->desc_head[consumer]; | |
1991 | desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM); | |
1992 | consumer = get_next_index(consumer, sds_ring->num_desc); | |
1993 | sds_ring->consumer = consumer; | |
1994 | writel(consumer, sds_ring->crb_sts_consumer); | |
1995 | } |