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> | |
12 | ||
13 | #include "qlcnic.h" | |
14 | ||
c70001a9 SC |
15 | #define TX_ETHER_PKT 0x01 |
16 | #define TX_TCP_PKT 0x02 | |
17 | #define TX_UDP_PKT 0x03 | |
18 | #define TX_IP_PKT 0x04 | |
19 | #define TX_TCP_LSO 0x05 | |
20 | #define TX_TCP_LSO6 0x06 | |
21 | #define TX_TCPV6_PKT 0x0b | |
22 | #define TX_UDPV6_PKT 0x0c | |
23 | #define FLAGS_VLAN_TAGGED 0x10 | |
24 | #define FLAGS_VLAN_OOB 0x40 | |
25 | ||
26 | #define qlcnic_set_tx_vlan_tci(cmd_desc, v) \ | |
27 | (cmd_desc)->vlan_TCI = cpu_to_le16(v); | |
28 | #define qlcnic_set_cmd_desc_port(cmd_desc, var) \ | |
29 | ((cmd_desc)->port_ctxid |= ((var) & 0x0F)) | |
30 | #define qlcnic_set_cmd_desc_ctxid(cmd_desc, var) \ | |
31 | ((cmd_desc)->port_ctxid |= ((var) << 4 & 0xF0)) | |
32 | ||
33 | #define qlcnic_set_tx_port(_desc, _port) \ | |
34 | ((_desc)->port_ctxid = ((_port) & 0xf) | (((_port) << 4) & 0xf0)) | |
35 | ||
36 | #define qlcnic_set_tx_flags_opcode(_desc, _flags, _opcode) \ | |
37 | ((_desc)->flags_opcode |= \ | |
38 | cpu_to_le16(((_flags) & 0x7f) | (((_opcode) & 0x3f) << 7))) | |
39 | ||
40 | #define qlcnic_set_tx_frags_len(_desc, _frags, _len) \ | |
41 | ((_desc)->nfrags__length = \ | |
42 | cpu_to_le32(((_frags) & 0xff) | (((_len) & 0xffffff) << 8))) | |
43 | ||
44 | /* owner bits of status_desc */ | |
45 | #define STATUS_OWNER_HOST (0x1ULL << 56) | |
46 | #define STATUS_OWNER_PHANTOM (0x2ULL << 56) | |
47 | ||
48 | /* Status descriptor: | |
49 | 0-3 port, 4-7 status, 8-11 type, 12-27 total_length | |
50 | 28-43 reference_handle, 44-47 protocol, 48-52 pkt_offset | |
51 | 53-55 desc_cnt, 56-57 owner, 58-63 opcode | |
52 | */ | |
53 | #define qlcnic_get_sts_port(sts_data) \ | |
54 | ((sts_data) & 0x0F) | |
55 | #define qlcnic_get_sts_status(sts_data) \ | |
56 | (((sts_data) >> 4) & 0x0F) | |
57 | #define qlcnic_get_sts_type(sts_data) \ | |
58 | (((sts_data) >> 8) & 0x0F) | |
59 | #define qlcnic_get_sts_totallength(sts_data) \ | |
60 | (((sts_data) >> 12) & 0xFFFF) | |
61 | #define qlcnic_get_sts_refhandle(sts_data) \ | |
62 | (((sts_data) >> 28) & 0xFFFF) | |
63 | #define qlcnic_get_sts_prot(sts_data) \ | |
64 | (((sts_data) >> 44) & 0x0F) | |
65 | #define qlcnic_get_sts_pkt_offset(sts_data) \ | |
66 | (((sts_data) >> 48) & 0x1F) | |
67 | #define qlcnic_get_sts_desc_cnt(sts_data) \ | |
68 | (((sts_data) >> 53) & 0x7) | |
69 | #define qlcnic_get_sts_opcode(sts_data) \ | |
70 | (((sts_data) >> 58) & 0x03F) | |
71 | ||
72 | #define qlcnic_get_lro_sts_refhandle(sts_data) \ | |
5796bd04 | 73 | ((sts_data) & 0x07FFF) |
c70001a9 SC |
74 | #define qlcnic_get_lro_sts_length(sts_data) \ |
75 | (((sts_data) >> 16) & 0x0FFFF) | |
76 | #define qlcnic_get_lro_sts_l2_hdr_offset(sts_data) \ | |
77 | (((sts_data) >> 32) & 0x0FF) | |
78 | #define qlcnic_get_lro_sts_l4_hdr_offset(sts_data) \ | |
79 | (((sts_data) >> 40) & 0x0FF) | |
80 | #define qlcnic_get_lro_sts_timestamp(sts_data) \ | |
81 | (((sts_data) >> 48) & 0x1) | |
82 | #define qlcnic_get_lro_sts_type(sts_data) \ | |
83 | (((sts_data) >> 49) & 0x7) | |
84 | #define qlcnic_get_lro_sts_push_flag(sts_data) \ | |
85 | (((sts_data) >> 52) & 0x1) | |
86 | #define qlcnic_get_lro_sts_seq_number(sts_data) \ | |
87 | ((sts_data) & 0x0FFFFFFFF) | |
88 | #define qlcnic_get_lro_sts_mss(sts_data1) \ | |
89 | ((sts_data1 >> 32) & 0x0FFFF) | |
90 | ||
99e85879 SS |
91 | #define qlcnic_83xx_get_lro_sts_mss(sts) ((sts) & 0xffff) |
92 | ||
c70001a9 SC |
93 | /* opcode field in status_desc */ |
94 | #define QLCNIC_SYN_OFFLOAD 0x03 | |
95 | #define QLCNIC_RXPKT_DESC 0x04 | |
96 | #define QLCNIC_OLD_RXPKT_DESC 0x3f | |
97 | #define QLCNIC_RESPONSE_DESC 0x05 | |
98 | #define QLCNIC_LRO_DESC 0x12 | |
99 | ||
4be41e92 SC |
100 | #define QLCNIC_TX_POLL_BUDGET 128 |
101 | #define QLCNIC_TCP_HDR_SIZE 20 | |
102 | #define QLCNIC_TCP_TS_OPTION_SIZE 12 | |
103 | #define QLCNIC_FETCH_RING_ID(handle) ((handle) >> 63) | |
104 | #define QLCNIC_DESC_OWNER_FW cpu_to_le64(STATUS_OWNER_PHANTOM) | |
105 | ||
106 | #define QLCNIC_TCP_TS_HDR_SIZE (QLCNIC_TCP_HDR_SIZE + QLCNIC_TCP_TS_OPTION_SIZE) | |
107 | ||
c70001a9 SC |
108 | /* for status field in status_desc */ |
109 | #define STATUS_CKSUM_LOOP 0 | |
110 | #define STATUS_CKSUM_OK 2 | |
d17dd0d9 | 111 | |
4be41e92 SC |
112 | #define qlcnic_83xx_pktln(sts) ((sts >> 32) & 0x3FFF) |
113 | #define qlcnic_83xx_hndl(sts) ((sts >> 48) & 0x7FFF) | |
114 | #define qlcnic_83xx_csum_status(sts) ((sts >> 39) & 7) | |
115 | #define qlcnic_83xx_opcode(sts) ((sts >> 42) & 0xF) | |
116 | #define qlcnic_83xx_vlan_tag(sts) (((sts) >> 48) & 0xFFFF) | |
117 | #define qlcnic_83xx_lro_pktln(sts) (((sts) >> 32) & 0x3FFF) | |
118 | #define qlcnic_83xx_l2_hdr_off(sts) (((sts) >> 16) & 0xFF) | |
119 | #define qlcnic_83xx_l4_hdr_off(sts) (((sts) >> 24) & 0xFF) | |
120 | #define qlcnic_83xx_pkt_cnt(sts) (((sts) >> 16) & 0x7) | |
121 | #define qlcnic_83xx_is_tstamp(sts) (((sts) >> 40) & 1) | |
122 | #define qlcnic_83xx_is_psh_bit(sts) (((sts) >> 41) & 1) | |
123 | #define qlcnic_83xx_is_ip_align(sts) (((sts) >> 46) & 1) | |
124 | #define qlcnic_83xx_has_vlan_tag(sts) (((sts) >> 47) & 1) | |
125 | ||
126 | struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *, | |
127 | struct qlcnic_host_rds_ring *, u16, u16); | |
128 | ||
129 | inline void qlcnic_83xx_enable_tx_intr(struct qlcnic_adapter *adapter, | |
130 | struct qlcnic_host_tx_ring *tx_ring) | |
131 | { | |
132 | writel(0, tx_ring->crb_intr_mask); | |
133 | } | |
134 | ||
135 | inline void qlcnic_83xx_disable_tx_intr(struct qlcnic_adapter *adapter, | |
136 | struct qlcnic_host_tx_ring *tx_ring) | |
137 | { | |
138 | writel(1, tx_ring->crb_intr_mask); | |
139 | } | |
140 | ||
141 | static inline u8 qlcnic_mac_hash(u64 mac) | |
142 | { | |
143 | return (u8)((mac & 0xff) ^ ((mac >> 40) & 0xff)); | |
144 | } | |
145 | ||
146 | static inline u32 qlcnic_get_ref_handle(struct qlcnic_adapter *adapter, | |
147 | u16 handle, u8 ring_id) | |
148 | { | |
149 | if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) | |
150 | return handle | (ring_id << 15); | |
151 | else | |
152 | return handle; | |
153 | } | |
154 | ||
53643a75 SS |
155 | static inline int qlcnic_82xx_is_lb_pkt(u64 sts_data) |
156 | { | |
157 | return (qlcnic_get_sts_status(sts_data) == STATUS_CKSUM_LOOP) ? 1 : 0; | |
158 | } | |
159 | ||
160 | void qlcnic_add_lb_filter(struct qlcnic_adapter *adapter, struct sk_buff *skb, | |
161 | int loopback_pkt, __le16 vlan_id) | |
162 | { | |
163 | struct ethhdr *phdr = (struct ethhdr *)(skb->data); | |
164 | struct qlcnic_filter *fil, *tmp_fil; | |
b67bfe0d | 165 | struct hlist_node *n; |
53643a75 SS |
166 | struct hlist_head *head; |
167 | unsigned long time; | |
168 | u64 src_addr = 0; | |
169 | u8 hindex, found = 0, op; | |
170 | int ret; | |
171 | ||
172 | memcpy(&src_addr, phdr->h_source, ETH_ALEN); | |
173 | ||
174 | if (loopback_pkt) { | |
175 | if (adapter->rx_fhash.fnum >= adapter->rx_fhash.fmax) | |
176 | return; | |
177 | ||
178 | hindex = qlcnic_mac_hash(src_addr) & | |
179 | (adapter->fhash.fbucket_size - 1); | |
180 | head = &(adapter->rx_fhash.fhead[hindex]); | |
181 | ||
b67bfe0d | 182 | hlist_for_each_entry_safe(tmp_fil, n, head, fnode) { |
53643a75 SS |
183 | if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) && |
184 | tmp_fil->vlan_id == vlan_id) { | |
185 | time = tmp_fil->ftime; | |
186 | if (jiffies > (QLCNIC_READD_AGE * HZ + time)) | |
187 | tmp_fil->ftime = jiffies; | |
188 | return; | |
189 | } | |
190 | } | |
191 | ||
192 | fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC); | |
193 | if (!fil) | |
194 | return; | |
195 | ||
196 | fil->ftime = jiffies; | |
197 | memcpy(fil->faddr, &src_addr, ETH_ALEN); | |
198 | fil->vlan_id = vlan_id; | |
199 | spin_lock(&adapter->rx_mac_learn_lock); | |
200 | hlist_add_head(&(fil->fnode), head); | |
201 | adapter->rx_fhash.fnum++; | |
202 | spin_unlock(&adapter->rx_mac_learn_lock); | |
203 | } else { | |
204 | hindex = qlcnic_mac_hash(src_addr) & | |
205 | (adapter->fhash.fbucket_size - 1); | |
206 | head = &(adapter->rx_fhash.fhead[hindex]); | |
207 | spin_lock(&adapter->rx_mac_learn_lock); | |
b67bfe0d | 208 | hlist_for_each_entry_safe(tmp_fil, n, head, fnode) { |
53643a75 SS |
209 | if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) && |
210 | tmp_fil->vlan_id == vlan_id) { | |
211 | found = 1; | |
212 | break; | |
213 | } | |
214 | } | |
215 | ||
216 | if (!found) { | |
217 | spin_unlock(&adapter->rx_mac_learn_lock); | |
218 | return; | |
219 | } | |
220 | ||
221 | op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD; | |
222 | ret = qlcnic_sre_macaddr_change(adapter, (u8 *)&src_addr, | |
223 | vlan_id, op); | |
224 | if (!ret) { | |
225 | op = vlan_id ? QLCNIC_MAC_VLAN_DEL : QLCNIC_MAC_DEL; | |
226 | ret = qlcnic_sre_macaddr_change(adapter, | |
227 | (u8 *)&src_addr, | |
228 | vlan_id, op); | |
229 | if (!ret) { | |
230 | hlist_del(&(tmp_fil->fnode)); | |
231 | adapter->rx_fhash.fnum--; | |
232 | } | |
233 | } | |
234 | spin_unlock(&adapter->rx_mac_learn_lock); | |
235 | } | |
236 | } | |
237 | ||
7e2cf4fe SC |
238 | void qlcnic_82xx_change_filter(struct qlcnic_adapter *adapter, u64 *uaddr, |
239 | __le16 vlan_id) | |
c70001a9 SC |
240 | { |
241 | struct cmd_desc_type0 *hwdesc; | |
242 | struct qlcnic_nic_req *req; | |
243 | struct qlcnic_mac_req *mac_req; | |
244 | struct qlcnic_vlan_req *vlan_req; | |
7e2cf4fe | 245 | struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; |
c70001a9 SC |
246 | u32 producer; |
247 | u64 word; | |
248 | ||
249 | producer = tx_ring->producer; | |
250 | hwdesc = &tx_ring->desc_head[tx_ring->producer]; | |
251 | ||
252 | req = (struct qlcnic_nic_req *)hwdesc; | |
253 | memset(req, 0, sizeof(struct qlcnic_nic_req)); | |
254 | req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23); | |
255 | ||
256 | word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16); | |
257 | req->req_hdr = cpu_to_le64(word); | |
258 | ||
259 | mac_req = (struct qlcnic_mac_req *)&(req->words[0]); | |
260 | mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD; | |
261 | memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN); | |
262 | ||
263 | vlan_req = (struct qlcnic_vlan_req *)&req->words[1]; | |
264 | vlan_req->vlan_id = vlan_id; | |
265 | ||
266 | tx_ring->producer = get_next_index(producer, tx_ring->num_desc); | |
267 | smp_mb(); | |
268 | } | |
269 | ||
d17dd0d9 | 270 | static void qlcnic_send_filter(struct qlcnic_adapter *adapter, |
d17dd0d9 SC |
271 | struct cmd_desc_type0 *first_desc, |
272 | struct sk_buff *skb) | |
c70001a9 | 273 | { |
c70001a9 | 274 | struct qlcnic_filter *fil, *tmp_fil; |
b67bfe0d | 275 | struct hlist_node *n; |
c70001a9 | 276 | struct hlist_head *head; |
4be41e92 | 277 | struct net_device *netdev = adapter->netdev; |
7e2cf4fe | 278 | struct ethhdr *phdr = (struct ethhdr *)(skb->data); |
c70001a9 SC |
279 | u64 src_addr = 0; |
280 | __le16 vlan_id = 0; | |
281 | u8 hindex; | |
282 | ||
4be41e92 | 283 | if (ether_addr_equal(phdr->h_source, adapter->mac_addr)) |
c70001a9 SC |
284 | return; |
285 | ||
4be41e92 SC |
286 | if (adapter->fhash.fnum >= adapter->fhash.fmax) { |
287 | adapter->stats.mac_filter_limit_overrun++; | |
288 | netdev_info(netdev, "Can not add more than %d mac addresses\n", | |
289 | adapter->fhash.fmax); | |
c70001a9 | 290 | return; |
4be41e92 | 291 | } |
c70001a9 | 292 | |
c70001a9 | 293 | memcpy(&src_addr, phdr->h_source, ETH_ALEN); |
4be41e92 | 294 | hindex = qlcnic_mac_hash(src_addr) & (adapter->fhash.fbucket_size - 1); |
c70001a9 SC |
295 | head = &(adapter->fhash.fhead[hindex]); |
296 | ||
b67bfe0d | 297 | hlist_for_each_entry_safe(tmp_fil, n, head, fnode) { |
c70001a9 | 298 | if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) && |
7e2cf4fe | 299 | tmp_fil->vlan_id == vlan_id) { |
d17dd0d9 | 300 | if (jiffies > (QLCNIC_READD_AGE * HZ + tmp_fil->ftime)) |
7e2cf4fe SC |
301 | qlcnic_change_filter(adapter, &src_addr, |
302 | vlan_id); | |
c70001a9 SC |
303 | tmp_fil->ftime = jiffies; |
304 | return; | |
305 | } | |
306 | } | |
307 | ||
308 | fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC); | |
309 | if (!fil) | |
310 | return; | |
311 | ||
7e2cf4fe | 312 | qlcnic_change_filter(adapter, &src_addr, vlan_id); |
c70001a9 SC |
313 | fil->ftime = jiffies; |
314 | fil->vlan_id = vlan_id; | |
315 | memcpy(fil->faddr, &src_addr, ETH_ALEN); | |
316 | spin_lock(&adapter->mac_learn_lock); | |
317 | hlist_add_head(&(fil->fnode), head); | |
318 | adapter->fhash.fnum++; | |
319 | spin_unlock(&adapter->mac_learn_lock); | |
320 | } | |
321 | ||
d17dd0d9 SC |
322 | static int qlcnic_tx_pkt(struct qlcnic_adapter *adapter, |
323 | struct cmd_desc_type0 *first_desc, struct sk_buff *skb) | |
c70001a9 | 324 | { |
d17dd0d9 | 325 | u8 l4proto, opcode = 0, hdr_len = 0; |
c70001a9 | 326 | u16 flags = 0, vlan_tci = 0; |
d17dd0d9 | 327 | int copied, offset, copy_len, size; |
c70001a9 SC |
328 | struct cmd_desc_type0 *hwdesc; |
329 | struct vlan_ethhdr *vh; | |
330 | struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; | |
331 | u16 protocol = ntohs(skb->protocol); | |
332 | u32 producer = tx_ring->producer; | |
333 | ||
334 | if (protocol == ETH_P_8021Q) { | |
335 | vh = (struct vlan_ethhdr *)skb->data; | |
336 | flags = FLAGS_VLAN_TAGGED; | |
337 | vlan_tci = ntohs(vh->h_vlan_TCI); | |
338 | protocol = ntohs(vh->h_vlan_encapsulated_proto); | |
339 | } else if (vlan_tx_tag_present(skb)) { | |
340 | flags = FLAGS_VLAN_OOB; | |
341 | vlan_tci = vlan_tx_tag_get(skb); | |
342 | } | |
343 | if (unlikely(adapter->pvid)) { | |
344 | if (vlan_tci && !(adapter->flags & QLCNIC_TAGGING_ENABLED)) | |
345 | return -EIO; | |
346 | if (vlan_tci && (adapter->flags & QLCNIC_TAGGING_ENABLED)) | |
347 | goto set_flags; | |
348 | ||
349 | flags = FLAGS_VLAN_OOB; | |
350 | vlan_tci = adapter->pvid; | |
351 | } | |
352 | set_flags: | |
353 | qlcnic_set_tx_vlan_tci(first_desc, vlan_tci); | |
354 | qlcnic_set_tx_flags_opcode(first_desc, flags, opcode); | |
355 | ||
356 | if (*(skb->data) & BIT_0) { | |
357 | flags |= BIT_0; | |
358 | memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN); | |
359 | } | |
360 | opcode = TX_ETHER_PKT; | |
361 | if ((adapter->netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && | |
d17dd0d9 | 362 | skb_shinfo(skb)->gso_size > 0) { |
c70001a9 | 363 | hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); |
c70001a9 SC |
364 | first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); |
365 | first_desc->total_hdr_length = hdr_len; | |
c70001a9 SC |
366 | opcode = (protocol == ETH_P_IPV6) ? TX_TCP_LSO6 : TX_TCP_LSO; |
367 | ||
368 | /* For LSO, we need to copy the MAC/IP/TCP headers into | |
369 | * the descriptor ring */ | |
370 | copied = 0; | |
371 | offset = 2; | |
372 | ||
373 | if (flags & FLAGS_VLAN_OOB) { | |
374 | first_desc->total_hdr_length += VLAN_HLEN; | |
375 | first_desc->tcp_hdr_offset = VLAN_HLEN; | |
376 | first_desc->ip_hdr_offset = VLAN_HLEN; | |
d17dd0d9 | 377 | |
c70001a9 SC |
378 | /* Only in case of TSO on vlan device */ |
379 | flags |= FLAGS_VLAN_TAGGED; | |
380 | ||
381 | /* Create a TSO vlan header template for firmware */ | |
c70001a9 SC |
382 | hwdesc = &tx_ring->desc_head[producer]; |
383 | tx_ring->cmd_buf_arr[producer].skb = NULL; | |
384 | ||
385 | copy_len = min((int)sizeof(struct cmd_desc_type0) - | |
d17dd0d9 | 386 | offset, hdr_len + VLAN_HLEN); |
c70001a9 SC |
387 | |
388 | vh = (struct vlan_ethhdr *)((char *) hwdesc + 2); | |
389 | skb_copy_from_linear_data(skb, vh, 12); | |
390 | vh->h_vlan_proto = htons(ETH_P_8021Q); | |
391 | vh->h_vlan_TCI = htons(vlan_tci); | |
392 | ||
393 | skb_copy_from_linear_data_offset(skb, 12, | |
d17dd0d9 SC |
394 | (char *)vh + 16, |
395 | copy_len - 16); | |
c70001a9 SC |
396 | copied = copy_len - VLAN_HLEN; |
397 | offset = 0; | |
c70001a9 SC |
398 | producer = get_next_index(producer, tx_ring->num_desc); |
399 | } | |
400 | ||
401 | while (copied < hdr_len) { | |
d17dd0d9 SC |
402 | size = (int)sizeof(struct cmd_desc_type0) - offset; |
403 | copy_len = min(size, (hdr_len - copied)); | |
c70001a9 SC |
404 | hwdesc = &tx_ring->desc_head[producer]; |
405 | tx_ring->cmd_buf_arr[producer].skb = NULL; | |
c70001a9 | 406 | skb_copy_from_linear_data_offset(skb, copied, |
d17dd0d9 SC |
407 | (char *)hwdesc + |
408 | offset, copy_len); | |
c70001a9 SC |
409 | copied += copy_len; |
410 | offset = 0; | |
c70001a9 SC |
411 | producer = get_next_index(producer, tx_ring->num_desc); |
412 | } | |
413 | ||
414 | tx_ring->producer = producer; | |
415 | smp_mb(); | |
416 | adapter->stats.lso_frames++; | |
417 | ||
418 | } else if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
c70001a9 SC |
419 | if (protocol == ETH_P_IP) { |
420 | l4proto = ip_hdr(skb)->protocol; | |
421 | ||
422 | if (l4proto == IPPROTO_TCP) | |
423 | opcode = TX_TCP_PKT; | |
424 | else if (l4proto == IPPROTO_UDP) | |
425 | opcode = TX_UDP_PKT; | |
426 | } else if (protocol == ETH_P_IPV6) { | |
427 | l4proto = ipv6_hdr(skb)->nexthdr; | |
428 | ||
429 | if (l4proto == IPPROTO_TCP) | |
430 | opcode = TX_TCPV6_PKT; | |
431 | else if (l4proto == IPPROTO_UDP) | |
432 | opcode = TX_UDPV6_PKT; | |
433 | } | |
434 | } | |
435 | first_desc->tcp_hdr_offset += skb_transport_offset(skb); | |
436 | first_desc->ip_hdr_offset += skb_network_offset(skb); | |
437 | qlcnic_set_tx_flags_opcode(first_desc, flags, opcode); | |
438 | ||
439 | return 0; | |
440 | } | |
441 | ||
d17dd0d9 SC |
442 | static int qlcnic_map_tx_skb(struct pci_dev *pdev, struct sk_buff *skb, |
443 | struct qlcnic_cmd_buffer *pbuf) | |
c70001a9 SC |
444 | { |
445 | struct qlcnic_skb_frag *nf; | |
446 | struct skb_frag_struct *frag; | |
447 | int i, nr_frags; | |
448 | dma_addr_t map; | |
449 | ||
450 | nr_frags = skb_shinfo(skb)->nr_frags; | |
451 | nf = &pbuf->frag_array[0]; | |
452 | ||
d17dd0d9 SC |
453 | map = pci_map_single(pdev, skb->data, skb_headlen(skb), |
454 | PCI_DMA_TODEVICE); | |
c70001a9 SC |
455 | if (pci_dma_mapping_error(pdev, map)) |
456 | goto out_err; | |
457 | ||
458 | nf->dma = map; | |
459 | nf->length = skb_headlen(skb); | |
460 | ||
461 | for (i = 0; i < nr_frags; i++) { | |
462 | frag = &skb_shinfo(skb)->frags[i]; | |
463 | nf = &pbuf->frag_array[i+1]; | |
c70001a9 SC |
464 | map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag), |
465 | DMA_TO_DEVICE); | |
466 | if (dma_mapping_error(&pdev->dev, map)) | |
467 | goto unwind; | |
468 | ||
469 | nf->dma = map; | |
470 | nf->length = skb_frag_size(frag); | |
471 | } | |
472 | ||
473 | return 0; | |
474 | ||
475 | unwind: | |
476 | while (--i >= 0) { | |
477 | nf = &pbuf->frag_array[i+1]; | |
478 | pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); | |
479 | } | |
480 | ||
481 | nf = &pbuf->frag_array[0]; | |
482 | pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); | |
483 | ||
484 | out_err: | |
485 | return -ENOMEM; | |
486 | } | |
487 | ||
d17dd0d9 SC |
488 | static void qlcnic_unmap_buffers(struct pci_dev *pdev, struct sk_buff *skb, |
489 | struct qlcnic_cmd_buffer *pbuf) | |
c70001a9 SC |
490 | { |
491 | struct qlcnic_skb_frag *nf = &pbuf->frag_array[0]; | |
d17dd0d9 | 492 | int i, nr_frags = skb_shinfo(skb)->nr_frags; |
c70001a9 SC |
493 | |
494 | for (i = 0; i < nr_frags; i++) { | |
495 | nf = &pbuf->frag_array[i+1]; | |
496 | pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); | |
497 | } | |
498 | ||
499 | nf = &pbuf->frag_array[0]; | |
500 | pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); | |
501 | pbuf->skb = NULL; | |
502 | } | |
503 | ||
d17dd0d9 | 504 | static inline void qlcnic_clear_cmddesc(u64 *desc) |
c70001a9 SC |
505 | { |
506 | desc[0] = 0ULL; | |
507 | desc[2] = 0ULL; | |
508 | desc[7] = 0ULL; | |
509 | } | |
510 | ||
d17dd0d9 | 511 | netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) |
c70001a9 SC |
512 | { |
513 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
514 | struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; | |
515 | struct qlcnic_cmd_buffer *pbuf; | |
516 | struct qlcnic_skb_frag *buffrag; | |
517 | struct cmd_desc_type0 *hwdesc, *first_desc; | |
518 | struct pci_dev *pdev; | |
519 | struct ethhdr *phdr; | |
d17dd0d9 SC |
520 | int i, k, frag_count, delta = 0; |
521 | u32 producer, num_txd; | |
c70001a9 | 522 | |
d17dd0d9 | 523 | num_txd = tx_ring->num_desc; |
c70001a9 SC |
524 | |
525 | if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) { | |
526 | netif_stop_queue(netdev); | |
527 | return NETDEV_TX_BUSY; | |
528 | } | |
529 | ||
530 | if (adapter->flags & QLCNIC_MACSPOOF) { | |
531 | phdr = (struct ethhdr *)skb->data; | |
532 | if (!ether_addr_equal(phdr->h_source, adapter->mac_addr)) | |
533 | goto drop_packet; | |
534 | } | |
535 | ||
536 | frag_count = skb_shinfo(skb)->nr_frags + 1; | |
537 | /* 14 frags supported for normal packet and | |
538 | * 32 frags supported for TSO packet | |
539 | */ | |
540 | if (!skb_is_gso(skb) && frag_count > QLCNIC_MAX_FRAGS_PER_TX) { | |
c70001a9 SC |
541 | for (i = 0; i < (frag_count - QLCNIC_MAX_FRAGS_PER_TX); i++) |
542 | delta += skb_frag_size(&skb_shinfo(skb)->frags[i]); | |
543 | ||
544 | if (!__pskb_pull_tail(skb, delta)) | |
545 | goto drop_packet; | |
546 | ||
547 | frag_count = 1 + skb_shinfo(skb)->nr_frags; | |
548 | } | |
549 | ||
550 | if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) { | |
551 | netif_stop_queue(netdev); | |
d17dd0d9 | 552 | if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) { |
c70001a9 | 553 | netif_start_queue(netdev); |
d17dd0d9 | 554 | } else { |
c70001a9 SC |
555 | adapter->stats.xmit_off++; |
556 | return NETDEV_TX_BUSY; | |
557 | } | |
558 | } | |
559 | ||
560 | producer = tx_ring->producer; | |
561 | pbuf = &tx_ring->cmd_buf_arr[producer]; | |
c70001a9 | 562 | pdev = adapter->pdev; |
d17dd0d9 SC |
563 | first_desc = &tx_ring->desc_head[producer]; |
564 | hwdesc = &tx_ring->desc_head[producer]; | |
c70001a9 SC |
565 | qlcnic_clear_cmddesc((u64 *)hwdesc); |
566 | ||
567 | if (qlcnic_map_tx_skb(pdev, skb, pbuf)) { | |
568 | adapter->stats.tx_dma_map_error++; | |
569 | goto drop_packet; | |
570 | } | |
571 | ||
572 | pbuf->skb = skb; | |
573 | pbuf->frag_count = frag_count; | |
574 | ||
575 | qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len); | |
576 | qlcnic_set_tx_port(first_desc, adapter->portnum); | |
577 | ||
578 | for (i = 0; i < frag_count; i++) { | |
c70001a9 SC |
579 | k = i % 4; |
580 | ||
581 | if ((k == 0) && (i > 0)) { | |
582 | /* move to next desc.*/ | |
583 | producer = get_next_index(producer, num_txd); | |
584 | hwdesc = &tx_ring->desc_head[producer]; | |
585 | qlcnic_clear_cmddesc((u64 *)hwdesc); | |
586 | tx_ring->cmd_buf_arr[producer].skb = NULL; | |
587 | } | |
588 | ||
589 | buffrag = &pbuf->frag_array[i]; | |
c70001a9 SC |
590 | hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); |
591 | switch (k) { | |
592 | case 0: | |
593 | hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); | |
594 | break; | |
595 | case 1: | |
596 | hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); | |
597 | break; | |
598 | case 2: | |
599 | hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); | |
600 | break; | |
601 | case 3: | |
602 | hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); | |
603 | break; | |
604 | } | |
605 | } | |
606 | ||
607 | tx_ring->producer = get_next_index(producer, num_txd); | |
608 | smp_mb(); | |
609 | ||
610 | if (unlikely(qlcnic_tx_pkt(adapter, first_desc, skb))) | |
611 | goto unwind_buff; | |
612 | ||
fe1adc6b | 613 | if (adapter->drv_mac_learn) |
4be41e92 | 614 | qlcnic_send_filter(adapter, first_desc, skb); |
c70001a9 SC |
615 | |
616 | adapter->stats.txbytes += skb->len; | |
617 | adapter->stats.xmitcalled++; | |
618 | ||
619 | qlcnic_update_cmd_producer(tx_ring); | |
620 | ||
621 | return NETDEV_TX_OK; | |
622 | ||
623 | unwind_buff: | |
624 | qlcnic_unmap_buffers(pdev, skb, pbuf); | |
625 | drop_packet: | |
626 | adapter->stats.txdropped++; | |
627 | dev_kfree_skb_any(skb); | |
628 | return NETDEV_TX_OK; | |
629 | } | |
630 | ||
7f966452 | 631 | void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup) |
c70001a9 SC |
632 | { |
633 | struct net_device *netdev = adapter->netdev; | |
634 | ||
635 | if (adapter->ahw->linkup && !linkup) { | |
636 | netdev_info(netdev, "NIC Link is down\n"); | |
637 | adapter->ahw->linkup = 0; | |
638 | if (netif_running(netdev)) { | |
639 | netif_carrier_off(netdev); | |
640 | netif_stop_queue(netdev); | |
641 | } | |
642 | } else if (!adapter->ahw->linkup && linkup) { | |
643 | netdev_info(netdev, "NIC Link is up\n"); | |
644 | adapter->ahw->linkup = 1; | |
645 | if (netif_running(netdev)) { | |
646 | netif_carrier_on(netdev); | |
647 | netif_wake_queue(netdev); | |
648 | } | |
649 | } | |
650 | } | |
651 | ||
d17dd0d9 SC |
652 | static int qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter, |
653 | struct qlcnic_host_rds_ring *rds_ring, | |
654 | struct qlcnic_rx_buffer *buffer) | |
c70001a9 SC |
655 | { |
656 | struct sk_buff *skb; | |
657 | dma_addr_t dma; | |
658 | struct pci_dev *pdev = adapter->pdev; | |
659 | ||
660 | skb = netdev_alloc_skb(adapter->netdev, rds_ring->skb_size); | |
661 | if (!skb) { | |
662 | adapter->stats.skb_alloc_failure++; | |
663 | return -ENOMEM; | |
664 | } | |
665 | ||
666 | skb_reserve(skb, NET_IP_ALIGN); | |
4be41e92 SC |
667 | dma = pci_map_single(pdev, skb->data, |
668 | rds_ring->dma_size, PCI_DMA_FROMDEVICE); | |
c70001a9 SC |
669 | |
670 | if (pci_dma_mapping_error(pdev, dma)) { | |
671 | adapter->stats.rx_dma_map_error++; | |
672 | dev_kfree_skb_any(skb); | |
673 | return -ENOMEM; | |
674 | } | |
675 | ||
676 | buffer->skb = skb; | |
677 | buffer->dma = dma; | |
678 | ||
679 | return 0; | |
680 | } | |
681 | ||
682 | static void qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter, | |
4be41e92 SC |
683 | struct qlcnic_host_rds_ring *rds_ring, |
684 | u8 ring_id) | |
c70001a9 SC |
685 | { |
686 | struct rcv_desc *pdesc; | |
687 | struct qlcnic_rx_buffer *buffer; | |
688 | int count = 0; | |
4be41e92 | 689 | uint32_t producer, handle; |
c70001a9 SC |
690 | struct list_head *head; |
691 | ||
692 | if (!spin_trylock(&rds_ring->lock)) | |
693 | return; | |
694 | ||
695 | producer = rds_ring->producer; | |
c70001a9 | 696 | head = &rds_ring->free_list; |
d17dd0d9 | 697 | while (!list_empty(head)) { |
c70001a9 SC |
698 | buffer = list_entry(head->next, struct qlcnic_rx_buffer, list); |
699 | ||
700 | if (!buffer->skb) { | |
701 | if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer)) | |
702 | break; | |
703 | } | |
c70001a9 SC |
704 | count++; |
705 | list_del(&buffer->list); | |
706 | ||
707 | /* make a rcv descriptor */ | |
708 | pdesc = &rds_ring->desc_head[producer]; | |
4be41e92 SC |
709 | handle = qlcnic_get_ref_handle(adapter, |
710 | buffer->ref_handle, ring_id); | |
711 | pdesc->reference_handle = cpu_to_le16(handle); | |
c70001a9 SC |
712 | pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); |
713 | pdesc->addr_buffer = cpu_to_le64(buffer->dma); | |
c70001a9 SC |
714 | producer = get_next_index(producer, rds_ring->num_desc); |
715 | } | |
c70001a9 SC |
716 | if (count) { |
717 | rds_ring->producer = producer; | |
718 | writel((producer - 1) & (rds_ring->num_desc - 1), | |
d17dd0d9 | 719 | rds_ring->crb_rcv_producer); |
c70001a9 SC |
720 | } |
721 | spin_unlock(&rds_ring->lock); | |
722 | } | |
723 | ||
4be41e92 SC |
724 | static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter, |
725 | struct qlcnic_host_tx_ring *tx_ring, | |
726 | int budget) | |
c70001a9 SC |
727 | { |
728 | u32 sw_consumer, hw_consumer; | |
d17dd0d9 | 729 | int i, done, count = 0; |
c70001a9 SC |
730 | struct qlcnic_cmd_buffer *buffer; |
731 | struct pci_dev *pdev = adapter->pdev; | |
732 | struct net_device *netdev = adapter->netdev; | |
733 | struct qlcnic_skb_frag *frag; | |
c70001a9 SC |
734 | |
735 | if (!spin_trylock(&adapter->tx_clean_lock)) | |
736 | return 1; | |
737 | ||
738 | sw_consumer = tx_ring->sw_consumer; | |
739 | hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); | |
740 | ||
741 | while (sw_consumer != hw_consumer) { | |
742 | buffer = &tx_ring->cmd_buf_arr[sw_consumer]; | |
743 | if (buffer->skb) { | |
744 | frag = &buffer->frag_array[0]; | |
745 | pci_unmap_single(pdev, frag->dma, frag->length, | |
746 | PCI_DMA_TODEVICE); | |
747 | frag->dma = 0ULL; | |
748 | for (i = 1; i < buffer->frag_count; i++) { | |
749 | frag++; | |
750 | pci_unmap_page(pdev, frag->dma, frag->length, | |
751 | PCI_DMA_TODEVICE); | |
752 | frag->dma = 0ULL; | |
753 | } | |
c70001a9 SC |
754 | adapter->stats.xmitfinished++; |
755 | dev_kfree_skb_any(buffer->skb); | |
756 | buffer->skb = NULL; | |
757 | } | |
758 | ||
759 | sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc); | |
4be41e92 | 760 | if (++count >= budget) |
c70001a9 SC |
761 | break; |
762 | } | |
763 | ||
764 | if (count && netif_running(netdev)) { | |
765 | tx_ring->sw_consumer = sw_consumer; | |
c70001a9 | 766 | smp_mb(); |
c70001a9 SC |
767 | if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) { |
768 | if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) { | |
769 | netif_wake_queue(netdev); | |
770 | adapter->stats.xmit_on++; | |
771 | } | |
772 | } | |
773 | adapter->tx_timeo_cnt = 0; | |
774 | } | |
775 | /* | |
776 | * If everything is freed up to consumer then check if the ring is full | |
777 | * If the ring is full then check if more needs to be freed and | |
778 | * schedule the call back again. | |
779 | * | |
780 | * This happens when there are 2 CPUs. One could be freeing and the | |
781 | * other filling it. If the ring is full when we get out of here and | |
782 | * the card has already interrupted the host then the host can miss the | |
783 | * interrupt. | |
784 | * | |
785 | * There is still a possible race condition and the host could miss an | |
786 | * interrupt. The card has to take care of this. | |
787 | */ | |
788 | hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); | |
789 | done = (sw_consumer == hw_consumer); | |
790 | spin_unlock(&adapter->tx_clean_lock); | |
791 | ||
792 | return done; | |
793 | } | |
794 | ||
795 | static int qlcnic_poll(struct napi_struct *napi, int budget) | |
796 | { | |
4be41e92 | 797 | int tx_complete, work_done; |
d17dd0d9 SC |
798 | struct qlcnic_host_sds_ring *sds_ring; |
799 | struct qlcnic_adapter *adapter; | |
c70001a9 | 800 | |
d17dd0d9 SC |
801 | sds_ring = container_of(napi, struct qlcnic_host_sds_ring, napi); |
802 | adapter = sds_ring->adapter; | |
4be41e92 SC |
803 | tx_complete = qlcnic_process_cmd_ring(adapter, adapter->tx_ring, |
804 | budget); | |
c70001a9 | 805 | work_done = qlcnic_process_rcv_ring(sds_ring, budget); |
c70001a9 SC |
806 | if ((work_done < budget) && tx_complete) { |
807 | napi_complete(&sds_ring->napi); | |
808 | if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) | |
809 | qlcnic_enable_int(sds_ring); | |
810 | } | |
811 | ||
812 | return work_done; | |
813 | } | |
814 | ||
815 | static int qlcnic_rx_poll(struct napi_struct *napi, int budget) | |
816 | { | |
d17dd0d9 SC |
817 | struct qlcnic_host_sds_ring *sds_ring; |
818 | struct qlcnic_adapter *adapter; | |
c70001a9 SC |
819 | int work_done; |
820 | ||
d17dd0d9 SC |
821 | sds_ring = container_of(napi, struct qlcnic_host_sds_ring, napi); |
822 | adapter = sds_ring->adapter; | |
823 | ||
c70001a9 SC |
824 | work_done = qlcnic_process_rcv_ring(sds_ring, budget); |
825 | ||
826 | if (work_done < budget) { | |
827 | napi_complete(&sds_ring->napi); | |
828 | if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) | |
829 | qlcnic_enable_int(sds_ring); | |
830 | } | |
831 | ||
832 | return work_done; | |
833 | } | |
834 | ||
d17dd0d9 SC |
835 | static void qlcnic_handle_linkevent(struct qlcnic_adapter *adapter, |
836 | struct qlcnic_fw_msg *msg) | |
c70001a9 SC |
837 | { |
838 | u32 cable_OUI; | |
d17dd0d9 SC |
839 | u16 cable_len, link_speed; |
840 | u8 link_status, module, duplex, autoneg, lb_status = 0; | |
c70001a9 SC |
841 | struct net_device *netdev = adapter->netdev; |
842 | ||
79788450 | 843 | adapter->ahw->has_link_events = 1; |
c70001a9 SC |
844 | |
845 | cable_OUI = msg->body[1] & 0xffffffff; | |
846 | cable_len = (msg->body[1] >> 32) & 0xffff; | |
847 | link_speed = (msg->body[1] >> 48) & 0xffff; | |
848 | ||
849 | link_status = msg->body[2] & 0xff; | |
850 | duplex = (msg->body[2] >> 16) & 0xff; | |
851 | autoneg = (msg->body[2] >> 24) & 0xff; | |
852 | lb_status = (msg->body[2] >> 32) & 0x3; | |
853 | ||
854 | module = (msg->body[2] >> 8) & 0xff; | |
855 | if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) | |
d17dd0d9 SC |
856 | dev_info(&netdev->dev, |
857 | "unsupported cable: OUI 0x%x, length %d\n", | |
858 | cable_OUI, cable_len); | |
c70001a9 SC |
859 | else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) |
860 | dev_info(&netdev->dev, "unsupported cable length %d\n", | |
d17dd0d9 | 861 | cable_len); |
c70001a9 SC |
862 | |
863 | if (!link_status && (lb_status == QLCNIC_ILB_MODE || | |
864 | lb_status == QLCNIC_ELB_MODE)) | |
865 | adapter->ahw->loopback_state |= QLCNIC_LINKEVENT; | |
866 | ||
867 | qlcnic_advert_link_change(adapter, link_status); | |
868 | ||
869 | if (duplex == LINKEVENT_FULL_DUPLEX) | |
79788450 | 870 | adapter->ahw->link_duplex = DUPLEX_FULL; |
c70001a9 | 871 | else |
79788450 | 872 | adapter->ahw->link_duplex = DUPLEX_HALF; |
c70001a9 | 873 | |
79788450 SC |
874 | adapter->ahw->module_type = module; |
875 | adapter->ahw->link_autoneg = autoneg; | |
c70001a9 SC |
876 | |
877 | if (link_status) { | |
79788450 | 878 | adapter->ahw->link_speed = link_speed; |
c70001a9 | 879 | } else { |
79788450 SC |
880 | adapter->ahw->link_speed = SPEED_UNKNOWN; |
881 | adapter->ahw->link_duplex = DUPLEX_UNKNOWN; | |
c70001a9 SC |
882 | } |
883 | } | |
884 | ||
d17dd0d9 SC |
885 | static void qlcnic_handle_fw_message(int desc_cnt, int index, |
886 | struct qlcnic_host_sds_ring *sds_ring) | |
c70001a9 SC |
887 | { |
888 | struct qlcnic_fw_msg msg; | |
889 | struct status_desc *desc; | |
890 | struct qlcnic_adapter *adapter; | |
891 | struct device *dev; | |
892 | int i = 0, opcode, ret; | |
893 | ||
894 | while (desc_cnt > 0 && i < 8) { | |
895 | desc = &sds_ring->desc_head[index]; | |
896 | msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]); | |
897 | msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]); | |
898 | ||
899 | index = get_next_index(index, sds_ring->num_desc); | |
900 | desc_cnt--; | |
901 | } | |
902 | ||
903 | adapter = sds_ring->adapter; | |
904 | dev = &adapter->pdev->dev; | |
905 | opcode = qlcnic_get_nic_msg_opcode(msg.body[0]); | |
906 | ||
907 | switch (opcode) { | |
908 | case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE: | |
909 | qlcnic_handle_linkevent(adapter, &msg); | |
910 | break; | |
911 | case QLCNIC_C2H_OPCODE_CONFIG_LOOPBACK: | |
912 | ret = (u32)(msg.body[1]); | |
913 | switch (ret) { | |
914 | case 0: | |
915 | adapter->ahw->loopback_state |= QLCNIC_LB_RESPONSE; | |
916 | break; | |
917 | case 1: | |
918 | dev_info(dev, "loopback already in progress\n"); | |
79788450 | 919 | adapter->ahw->diag_cnt = -QLCNIC_TEST_IN_PROGRESS; |
c70001a9 SC |
920 | break; |
921 | case 2: | |
922 | dev_info(dev, "loopback cable is not connected\n"); | |
79788450 | 923 | adapter->ahw->diag_cnt = -QLCNIC_LB_CABLE_NOT_CONN; |
c70001a9 SC |
924 | break; |
925 | default: | |
d17dd0d9 SC |
926 | dev_info(dev, |
927 | "loopback configure request failed, err %x\n", | |
928 | ret); | |
79788450 | 929 | adapter->ahw->diag_cnt = -QLCNIC_UNDEFINED_ERROR; |
c70001a9 SC |
930 | break; |
931 | } | |
932 | break; | |
933 | default: | |
934 | break; | |
935 | } | |
936 | } | |
937 | ||
4be41e92 SC |
938 | struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter, |
939 | struct qlcnic_host_rds_ring *ring, | |
940 | u16 index, u16 cksum) | |
c70001a9 SC |
941 | { |
942 | struct qlcnic_rx_buffer *buffer; | |
943 | struct sk_buff *skb; | |
944 | ||
4be41e92 | 945 | buffer = &ring->rx_buf_arr[index]; |
c70001a9 SC |
946 | if (unlikely(buffer->skb == NULL)) { |
947 | WARN_ON(1); | |
948 | return NULL; | |
949 | } | |
950 | ||
4be41e92 | 951 | pci_unmap_single(adapter->pdev, buffer->dma, ring->dma_size, |
d17dd0d9 | 952 | PCI_DMA_FROMDEVICE); |
c70001a9 SC |
953 | |
954 | skb = buffer->skb; | |
c70001a9 | 955 | if (likely((adapter->netdev->features & NETIF_F_RXCSUM) && |
d17dd0d9 | 956 | (cksum == STATUS_CKSUM_OK || cksum == STATUS_CKSUM_LOOP))) { |
c70001a9 SC |
957 | adapter->stats.csummed++; |
958 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
959 | } else { | |
960 | skb_checksum_none_assert(skb); | |
961 | } | |
962 | ||
4be41e92 | 963 | |
c70001a9 SC |
964 | buffer->skb = NULL; |
965 | ||
966 | return skb; | |
967 | } | |
968 | ||
d17dd0d9 SC |
969 | static inline int qlcnic_check_rx_tagging(struct qlcnic_adapter *adapter, |
970 | struct sk_buff *skb, u16 *vlan_tag) | |
c70001a9 SC |
971 | { |
972 | struct ethhdr *eth_hdr; | |
973 | ||
974 | if (!__vlan_get_tag(skb, vlan_tag)) { | |
d17dd0d9 | 975 | eth_hdr = (struct ethhdr *)skb->data; |
c70001a9 SC |
976 | memmove(skb->data + VLAN_HLEN, eth_hdr, ETH_ALEN * 2); |
977 | skb_pull(skb, VLAN_HLEN); | |
978 | } | |
979 | if (!adapter->pvid) | |
980 | return 0; | |
981 | ||
982 | if (*vlan_tag == adapter->pvid) { | |
983 | /* Outer vlan tag. Packet should follow non-vlan path */ | |
984 | *vlan_tag = 0xffff; | |
985 | return 0; | |
986 | } | |
987 | if (adapter->flags & QLCNIC_TAGGING_ENABLED) | |
988 | return 0; | |
989 | ||
990 | return -EINVAL; | |
991 | } | |
992 | ||
993 | static struct qlcnic_rx_buffer * | |
994 | qlcnic_process_rcv(struct qlcnic_adapter *adapter, | |
d17dd0d9 SC |
995 | struct qlcnic_host_sds_ring *sds_ring, int ring, |
996 | u64 sts_data0) | |
c70001a9 SC |
997 | { |
998 | struct net_device *netdev = adapter->netdev; | |
999 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1000 | struct qlcnic_rx_buffer *buffer; | |
1001 | struct sk_buff *skb; | |
1002 | struct qlcnic_host_rds_ring *rds_ring; | |
53643a75 SS |
1003 | int index, length, cksum, pkt_offset, is_lb_pkt; |
1004 | u16 vid = 0xffff, t_vid; | |
c70001a9 SC |
1005 | |
1006 | if (unlikely(ring >= adapter->max_rds_rings)) | |
1007 | return NULL; | |
1008 | ||
1009 | rds_ring = &recv_ctx->rds_rings[ring]; | |
1010 | ||
1011 | index = qlcnic_get_sts_refhandle(sts_data0); | |
1012 | if (unlikely(index >= rds_ring->num_desc)) | |
1013 | return NULL; | |
1014 | ||
1015 | buffer = &rds_ring->rx_buf_arr[index]; | |
c70001a9 SC |
1016 | length = qlcnic_get_sts_totallength(sts_data0); |
1017 | cksum = qlcnic_get_sts_status(sts_data0); | |
1018 | pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0); | |
1019 | ||
1020 | skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum); | |
1021 | if (!skb) | |
1022 | return buffer; | |
1023 | ||
53643a75 SS |
1024 | if (adapter->drv_mac_learn && |
1025 | (adapter->flags & QLCNIC_ESWITCH_ENABLED)) { | |
1026 | t_vid = 0; | |
1027 | is_lb_pkt = qlcnic_82xx_is_lb_pkt(sts_data0); | |
1028 | qlcnic_add_lb_filter(adapter, skb, is_lb_pkt, | |
1029 | cpu_to_le16(t_vid)); | |
1030 | } | |
1031 | ||
c70001a9 SC |
1032 | if (length > rds_ring->skb_size) |
1033 | skb_put(skb, rds_ring->skb_size); | |
1034 | else | |
1035 | skb_put(skb, length); | |
1036 | ||
1037 | if (pkt_offset) | |
1038 | skb_pull(skb, pkt_offset); | |
1039 | ||
1040 | if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) { | |
1041 | adapter->stats.rxdropped++; | |
1042 | dev_kfree_skb(skb); | |
1043 | return buffer; | |
1044 | } | |
1045 | ||
1046 | skb->protocol = eth_type_trans(skb, netdev); | |
1047 | ||
1048 | if (vid != 0xffff) | |
1049 | __vlan_hwaccel_put_tag(skb, vid); | |
1050 | ||
1051 | napi_gro_receive(&sds_ring->napi, skb); | |
1052 | ||
1053 | adapter->stats.rx_pkts++; | |
1054 | adapter->stats.rxbytes += length; | |
1055 | ||
1056 | return buffer; | |
1057 | } | |
1058 | ||
1059 | #define QLC_TCP_HDR_SIZE 20 | |
1060 | #define QLC_TCP_TS_OPTION_SIZE 12 | |
1061 | #define QLC_TCP_TS_HDR_SIZE (QLC_TCP_HDR_SIZE + QLC_TCP_TS_OPTION_SIZE) | |
1062 | ||
1063 | static struct qlcnic_rx_buffer * | |
1064 | qlcnic_process_lro(struct qlcnic_adapter *adapter, | |
d17dd0d9 | 1065 | int ring, u64 sts_data0, u64 sts_data1) |
c70001a9 SC |
1066 | { |
1067 | struct net_device *netdev = adapter->netdev; | |
1068 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1069 | struct qlcnic_rx_buffer *buffer; | |
1070 | struct sk_buff *skb; | |
1071 | struct qlcnic_host_rds_ring *rds_ring; | |
1072 | struct iphdr *iph; | |
776e7bde | 1073 | struct ipv6hdr *ipv6h; |
c70001a9 SC |
1074 | struct tcphdr *th; |
1075 | bool push, timestamp; | |
53643a75 SS |
1076 | int index, l2_hdr_offset, l4_hdr_offset, is_lb_pkt; |
1077 | u16 lro_length, length, data_offset, t_vid, vid = 0xffff; | |
c70001a9 | 1078 | u32 seq_number; |
c70001a9 SC |
1079 | |
1080 | if (unlikely(ring > adapter->max_rds_rings)) | |
1081 | return NULL; | |
1082 | ||
1083 | rds_ring = &recv_ctx->rds_rings[ring]; | |
1084 | ||
1085 | index = qlcnic_get_lro_sts_refhandle(sts_data0); | |
1086 | if (unlikely(index > rds_ring->num_desc)) | |
1087 | return NULL; | |
1088 | ||
1089 | buffer = &rds_ring->rx_buf_arr[index]; | |
1090 | ||
1091 | timestamp = qlcnic_get_lro_sts_timestamp(sts_data0); | |
1092 | lro_length = qlcnic_get_lro_sts_length(sts_data0); | |
1093 | l2_hdr_offset = qlcnic_get_lro_sts_l2_hdr_offset(sts_data0); | |
1094 | l4_hdr_offset = qlcnic_get_lro_sts_l4_hdr_offset(sts_data0); | |
1095 | push = qlcnic_get_lro_sts_push_flag(sts_data0); | |
1096 | seq_number = qlcnic_get_lro_sts_seq_number(sts_data1); | |
1097 | ||
1098 | skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK); | |
1099 | if (!skb) | |
1100 | return buffer; | |
1101 | ||
53643a75 SS |
1102 | if (adapter->drv_mac_learn && |
1103 | (adapter->flags & QLCNIC_ESWITCH_ENABLED)) { | |
1104 | t_vid = 0; | |
1105 | is_lb_pkt = qlcnic_82xx_is_lb_pkt(sts_data0); | |
1106 | qlcnic_add_lb_filter(adapter, skb, is_lb_pkt, | |
1107 | cpu_to_le16(t_vid)); | |
1108 | } | |
1109 | ||
c70001a9 SC |
1110 | if (timestamp) |
1111 | data_offset = l4_hdr_offset + QLC_TCP_TS_HDR_SIZE; | |
1112 | else | |
1113 | data_offset = l4_hdr_offset + QLC_TCP_HDR_SIZE; | |
1114 | ||
1115 | skb_put(skb, lro_length + data_offset); | |
c70001a9 SC |
1116 | skb_pull(skb, l2_hdr_offset); |
1117 | ||
1118 | if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) { | |
1119 | adapter->stats.rxdropped++; | |
1120 | dev_kfree_skb(skb); | |
1121 | return buffer; | |
1122 | } | |
1123 | ||
1124 | skb->protocol = eth_type_trans(skb, netdev); | |
776e7bde | 1125 | |
069048f1 | 1126 | if (ntohs(skb->protocol) == ETH_P_IPV6) { |
776e7bde SS |
1127 | ipv6h = (struct ipv6hdr *)skb->data; |
1128 | th = (struct tcphdr *)(skb->data + sizeof(struct ipv6hdr)); | |
1129 | length = (th->doff << 2) + lro_length; | |
1130 | ipv6h->payload_len = htons(length); | |
1131 | } else { | |
1132 | iph = (struct iphdr *)skb->data; | |
1133 | th = (struct tcphdr *)(skb->data + (iph->ihl << 2)); | |
1134 | length = (iph->ihl << 2) + (th->doff << 2) + lro_length; | |
1135 | iph->tot_len = htons(length); | |
1136 | iph->check = 0; | |
1137 | iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl); | |
1138 | } | |
1139 | ||
c70001a9 SC |
1140 | th->psh = push; |
1141 | th->seq = htonl(seq_number); | |
c70001a9 SC |
1142 | length = skb->len; |
1143 | ||
bd69ba79 | 1144 | if (adapter->flags & QLCNIC_FW_LRO_MSS_CAP) { |
c70001a9 | 1145 | skb_shinfo(skb)->gso_size = qlcnic_get_lro_sts_mss(sts_data1); |
bd69ba79 MT |
1146 | if (skb->protocol == htons(ETH_P_IPV6)) |
1147 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6; | |
1148 | else | |
1149 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; | |
1150 | } | |
c70001a9 SC |
1151 | |
1152 | if (vid != 0xffff) | |
1153 | __vlan_hwaccel_put_tag(skb, vid); | |
1154 | netif_receive_skb(skb); | |
1155 | ||
1156 | adapter->stats.lro_pkts++; | |
1157 | adapter->stats.lrobytes += length; | |
1158 | ||
1159 | return buffer; | |
1160 | } | |
1161 | ||
d17dd0d9 | 1162 | int qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max) |
c70001a9 | 1163 | { |
d17dd0d9 | 1164 | struct qlcnic_host_rds_ring *rds_ring; |
c70001a9 SC |
1165 | struct qlcnic_adapter *adapter = sds_ring->adapter; |
1166 | struct list_head *cur; | |
1167 | struct status_desc *desc; | |
1168 | struct qlcnic_rx_buffer *rxbuf; | |
4be41e92 | 1169 | int opcode, desc_cnt, count = 0; |
c70001a9 | 1170 | u64 sts_data0, sts_data1; |
4be41e92 | 1171 | u8 ring; |
c70001a9 SC |
1172 | u32 consumer = sds_ring->consumer; |
1173 | ||
1174 | while (count < max) { | |
1175 | desc = &sds_ring->desc_head[consumer]; | |
1176 | sts_data0 = le64_to_cpu(desc->status_desc_data[0]); | |
1177 | ||
1178 | if (!(sts_data0 & STATUS_OWNER_HOST)) | |
1179 | break; | |
1180 | ||
1181 | desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0); | |
1182 | opcode = qlcnic_get_sts_opcode(sts_data0); | |
c70001a9 SC |
1183 | switch (opcode) { |
1184 | case QLCNIC_RXPKT_DESC: | |
1185 | case QLCNIC_OLD_RXPKT_DESC: | |
1186 | case QLCNIC_SYN_OFFLOAD: | |
1187 | ring = qlcnic_get_sts_type(sts_data0); | |
d17dd0d9 SC |
1188 | rxbuf = qlcnic_process_rcv(adapter, sds_ring, ring, |
1189 | sts_data0); | |
c70001a9 SC |
1190 | break; |
1191 | case QLCNIC_LRO_DESC: | |
1192 | ring = qlcnic_get_lro_sts_type(sts_data0); | |
1193 | sts_data1 = le64_to_cpu(desc->status_desc_data[1]); | |
1194 | rxbuf = qlcnic_process_lro(adapter, ring, sts_data0, | |
1195 | sts_data1); | |
1196 | break; | |
1197 | case QLCNIC_RESPONSE_DESC: | |
1198 | qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring); | |
1199 | default: | |
1200 | goto skip; | |
1201 | } | |
c70001a9 SC |
1202 | WARN_ON(desc_cnt > 1); |
1203 | ||
1204 | if (likely(rxbuf)) | |
1205 | list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]); | |
1206 | else | |
1207 | adapter->stats.null_rxbuf++; | |
c70001a9 SC |
1208 | skip: |
1209 | for (; desc_cnt > 0; desc_cnt--) { | |
1210 | desc = &sds_ring->desc_head[consumer]; | |
4be41e92 | 1211 | desc->status_desc_data[0] = QLCNIC_DESC_OWNER_FW; |
c70001a9 SC |
1212 | consumer = get_next_index(consumer, sds_ring->num_desc); |
1213 | } | |
1214 | count++; | |
1215 | } | |
1216 | ||
1217 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { | |
d17dd0d9 | 1218 | rds_ring = &adapter->recv_ctx->rds_rings[ring]; |
c70001a9 SC |
1219 | if (!list_empty(&sds_ring->free_list[ring])) { |
1220 | list_for_each(cur, &sds_ring->free_list[ring]) { | |
d17dd0d9 SC |
1221 | rxbuf = list_entry(cur, struct qlcnic_rx_buffer, |
1222 | list); | |
c70001a9 SC |
1223 | qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf); |
1224 | } | |
1225 | spin_lock(&rds_ring->lock); | |
1226 | list_splice_tail_init(&sds_ring->free_list[ring], | |
d17dd0d9 | 1227 | &rds_ring->free_list); |
c70001a9 SC |
1228 | spin_unlock(&rds_ring->lock); |
1229 | } | |
1230 | ||
4be41e92 | 1231 | qlcnic_post_rx_buffers_nodb(adapter, rds_ring, ring); |
c70001a9 SC |
1232 | } |
1233 | ||
1234 | if (count) { | |
1235 | sds_ring->consumer = consumer; | |
1236 | writel(consumer, sds_ring->crb_sts_consumer); | |
1237 | } | |
1238 | ||
1239 | return count; | |
1240 | } | |
1241 | ||
d17dd0d9 | 1242 | void qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, |
4be41e92 | 1243 | struct qlcnic_host_rds_ring *rds_ring, u8 ring_id) |
c70001a9 SC |
1244 | { |
1245 | struct rcv_desc *pdesc; | |
1246 | struct qlcnic_rx_buffer *buffer; | |
1247 | int count = 0; | |
4be41e92 | 1248 | u32 producer, handle; |
c70001a9 SC |
1249 | struct list_head *head; |
1250 | ||
1251 | producer = rds_ring->producer; | |
c70001a9 | 1252 | head = &rds_ring->free_list; |
d17dd0d9 | 1253 | |
c70001a9 SC |
1254 | while (!list_empty(head)) { |
1255 | ||
1256 | buffer = list_entry(head->next, struct qlcnic_rx_buffer, list); | |
1257 | ||
1258 | if (!buffer->skb) { | |
1259 | if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer)) | |
1260 | break; | |
1261 | } | |
1262 | ||
1263 | count++; | |
1264 | list_del(&buffer->list); | |
1265 | ||
1266 | /* make a rcv descriptor */ | |
1267 | pdesc = &rds_ring->desc_head[producer]; | |
1268 | pdesc->addr_buffer = cpu_to_le64(buffer->dma); | |
4be41e92 SC |
1269 | handle = qlcnic_get_ref_handle(adapter, buffer->ref_handle, |
1270 | ring_id); | |
1271 | pdesc->reference_handle = cpu_to_le16(handle); | |
c70001a9 | 1272 | pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); |
c70001a9 SC |
1273 | producer = get_next_index(producer, rds_ring->num_desc); |
1274 | } | |
1275 | ||
1276 | if (count) { | |
1277 | rds_ring->producer = producer; | |
1278 | writel((producer-1) & (rds_ring->num_desc-1), | |
d17dd0d9 | 1279 | rds_ring->crb_rcv_producer); |
c70001a9 SC |
1280 | } |
1281 | } | |
1282 | ||
1283 | static void dump_skb(struct sk_buff *skb, struct qlcnic_adapter *adapter) | |
1284 | { | |
1285 | int i; | |
1286 | unsigned char *data = skb->data; | |
1287 | ||
d17dd0d9 | 1288 | pr_info(KERN_INFO "\n"); |
c70001a9 SC |
1289 | for (i = 0; i < skb->len; i++) { |
1290 | QLCDB(adapter, DRV, "%02x ", data[i]); | |
1291 | if ((i & 0x0f) == 8) | |
d17dd0d9 | 1292 | pr_info(KERN_INFO "\n"); |
c70001a9 SC |
1293 | } |
1294 | } | |
1295 | ||
1296 | static void qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter, int ring, | |
1297 | u64 sts_data0) | |
1298 | { | |
1299 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1300 | struct sk_buff *skb; | |
1301 | struct qlcnic_host_rds_ring *rds_ring; | |
1302 | int index, length, cksum, pkt_offset; | |
1303 | ||
1304 | if (unlikely(ring >= adapter->max_rds_rings)) | |
1305 | return; | |
1306 | ||
1307 | rds_ring = &recv_ctx->rds_rings[ring]; | |
1308 | ||
1309 | index = qlcnic_get_sts_refhandle(sts_data0); | |
1310 | length = qlcnic_get_sts_totallength(sts_data0); | |
1311 | if (unlikely(index >= rds_ring->num_desc)) | |
1312 | return; | |
1313 | ||
1314 | cksum = qlcnic_get_sts_status(sts_data0); | |
1315 | pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0); | |
1316 | ||
1317 | skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum); | |
1318 | if (!skb) | |
1319 | return; | |
1320 | ||
1321 | if (length > rds_ring->skb_size) | |
1322 | skb_put(skb, rds_ring->skb_size); | |
1323 | else | |
1324 | skb_put(skb, length); | |
1325 | ||
1326 | if (pkt_offset) | |
1327 | skb_pull(skb, pkt_offset); | |
1328 | ||
1329 | if (!qlcnic_check_loopback_buff(skb->data, adapter->mac_addr)) | |
79788450 | 1330 | adapter->ahw->diag_cnt++; |
c70001a9 SC |
1331 | else |
1332 | dump_skb(skb, adapter); | |
1333 | ||
1334 | dev_kfree_skb_any(skb); | |
1335 | adapter->stats.rx_pkts++; | |
1336 | adapter->stats.rxbytes += length; | |
1337 | ||
1338 | return; | |
1339 | } | |
1340 | ||
7e2cf4fe | 1341 | void qlcnic_82xx_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring) |
c70001a9 SC |
1342 | { |
1343 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
1344 | struct status_desc *desc; | |
1345 | u64 sts_data0; | |
1346 | int ring, opcode, desc_cnt; | |
1347 | ||
1348 | u32 consumer = sds_ring->consumer; | |
1349 | ||
1350 | desc = &sds_ring->desc_head[consumer]; | |
1351 | sts_data0 = le64_to_cpu(desc->status_desc_data[0]); | |
1352 | ||
1353 | if (!(sts_data0 & STATUS_OWNER_HOST)) | |
1354 | return; | |
1355 | ||
1356 | desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0); | |
1357 | opcode = qlcnic_get_sts_opcode(sts_data0); | |
1358 | switch (opcode) { | |
1359 | case QLCNIC_RESPONSE_DESC: | |
1360 | qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring); | |
1361 | break; | |
1362 | default: | |
1363 | ring = qlcnic_get_sts_type(sts_data0); | |
1364 | qlcnic_process_rcv_diag(adapter, ring, sts_data0); | |
1365 | break; | |
1366 | } | |
1367 | ||
1368 | for (; desc_cnt > 0; desc_cnt--) { | |
1369 | desc = &sds_ring->desc_head[consumer]; | |
1370 | desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM); | |
1371 | consumer = get_next_index(consumer, sds_ring->num_desc); | |
1372 | } | |
1373 | ||
1374 | sds_ring->consumer = consumer; | |
1375 | writel(consumer, sds_ring->crb_sts_consumer); | |
1376 | } | |
1377 | ||
7e2cf4fe SC |
1378 | int qlcnic_82xx_napi_add(struct qlcnic_adapter *adapter, |
1379 | struct net_device *netdev) | |
c70001a9 | 1380 | { |
d17dd0d9 | 1381 | int ring, max_sds_rings; |
c70001a9 SC |
1382 | struct qlcnic_host_sds_ring *sds_ring; |
1383 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1384 | ||
1385 | if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) | |
1386 | return -ENOMEM; | |
1387 | ||
d17dd0d9 SC |
1388 | max_sds_rings = adapter->max_sds_rings; |
1389 | ||
c70001a9 SC |
1390 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
1391 | sds_ring = &recv_ctx->sds_rings[ring]; | |
4be41e92 | 1392 | if (ring == adapter->max_sds_rings - 1) |
c70001a9 | 1393 | netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll, |
d17dd0d9 | 1394 | QLCNIC_NETDEV_WEIGHT / max_sds_rings); |
c70001a9 | 1395 | else |
d17dd0d9 SC |
1396 | netif_napi_add(netdev, &sds_ring->napi, qlcnic_rx_poll, |
1397 | QLCNIC_NETDEV_WEIGHT*2); | |
c70001a9 SC |
1398 | } |
1399 | ||
4be41e92 SC |
1400 | if (qlcnic_alloc_tx_rings(adapter, netdev)) { |
1401 | qlcnic_free_sds_rings(recv_ctx); | |
1402 | return -ENOMEM; | |
1403 | } | |
1404 | ||
c70001a9 SC |
1405 | return 0; |
1406 | } | |
1407 | ||
4be41e92 | 1408 | void qlcnic_82xx_napi_del(struct qlcnic_adapter *adapter) |
c70001a9 SC |
1409 | { |
1410 | int ring; | |
1411 | struct qlcnic_host_sds_ring *sds_ring; | |
1412 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1413 | ||
1414 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
1415 | sds_ring = &recv_ctx->sds_rings[ring]; | |
1416 | netif_napi_del(&sds_ring->napi); | |
1417 | } | |
1418 | ||
1419 | qlcnic_free_sds_rings(adapter->recv_ctx); | |
4be41e92 | 1420 | qlcnic_free_tx_rings(adapter); |
c70001a9 SC |
1421 | } |
1422 | ||
7e2cf4fe | 1423 | void qlcnic_82xx_napi_enable(struct qlcnic_adapter *adapter) |
c70001a9 SC |
1424 | { |
1425 | int ring; | |
1426 | struct qlcnic_host_sds_ring *sds_ring; | |
1427 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1428 | ||
1429 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
1430 | return; | |
1431 | ||
1432 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
1433 | sds_ring = &recv_ctx->sds_rings[ring]; | |
1434 | napi_enable(&sds_ring->napi); | |
1435 | qlcnic_enable_int(sds_ring); | |
1436 | } | |
1437 | } | |
1438 | ||
7e2cf4fe | 1439 | void qlcnic_82xx_napi_disable(struct qlcnic_adapter *adapter) |
c70001a9 SC |
1440 | { |
1441 | int ring; | |
1442 | struct qlcnic_host_sds_ring *sds_ring; | |
1443 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1444 | ||
1445 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
1446 | return; | |
1447 | ||
1448 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
1449 | sds_ring = &recv_ctx->sds_rings[ring]; | |
1450 | qlcnic_disable_int(sds_ring); | |
1451 | napi_synchronize(&sds_ring->napi); | |
1452 | napi_disable(&sds_ring->napi); | |
1453 | } | |
1454 | } | |
4be41e92 | 1455 | |
53643a75 SS |
1456 | #define QLC_83XX_NORMAL_LB_PKT (1ULL << 36) |
1457 | #define QLC_83XX_LRO_LB_PKT (1ULL << 46) | |
1458 | ||
1459 | static inline int qlcnic_83xx_is_lb_pkt(u64 sts_data, int lro_pkt) | |
1460 | { | |
1461 | if (lro_pkt) | |
1462 | return (sts_data & QLC_83XX_LRO_LB_PKT) ? 1 : 0; | |
1463 | else | |
1464 | return (sts_data & QLC_83XX_NORMAL_LB_PKT) ? 1 : 0; | |
1465 | } | |
1466 | ||
4be41e92 SC |
1467 | static struct qlcnic_rx_buffer * |
1468 | qlcnic_83xx_process_rcv(struct qlcnic_adapter *adapter, | |
1469 | struct qlcnic_host_sds_ring *sds_ring, | |
1470 | u8 ring, u64 sts_data[]) | |
1471 | { | |
1472 | struct net_device *netdev = adapter->netdev; | |
1473 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1474 | struct qlcnic_rx_buffer *buffer; | |
1475 | struct sk_buff *skb; | |
1476 | struct qlcnic_host_rds_ring *rds_ring; | |
53643a75 SS |
1477 | int index, length, cksum, is_lb_pkt; |
1478 | u16 vid = 0xffff, t_vid; | |
4be41e92 SC |
1479 | |
1480 | if (unlikely(ring >= adapter->max_rds_rings)) | |
1481 | return NULL; | |
1482 | ||
1483 | rds_ring = &recv_ctx->rds_rings[ring]; | |
1484 | ||
1485 | index = qlcnic_83xx_hndl(sts_data[0]); | |
1486 | if (unlikely(index >= rds_ring->num_desc)) | |
1487 | return NULL; | |
1488 | ||
1489 | buffer = &rds_ring->rx_buf_arr[index]; | |
1490 | length = qlcnic_83xx_pktln(sts_data[0]); | |
1491 | cksum = qlcnic_83xx_csum_status(sts_data[1]); | |
1492 | skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum); | |
1493 | if (!skb) | |
1494 | return buffer; | |
1495 | ||
53643a75 SS |
1496 | if (adapter->drv_mac_learn && |
1497 | (adapter->flags & QLCNIC_ESWITCH_ENABLED)) { | |
1498 | t_vid = 0; | |
1499 | is_lb_pkt = qlcnic_83xx_is_lb_pkt(sts_data[1], 0); | |
1500 | qlcnic_add_lb_filter(adapter, skb, is_lb_pkt, | |
1501 | cpu_to_le16(t_vid)); | |
1502 | } | |
1503 | ||
4be41e92 SC |
1504 | if (length > rds_ring->skb_size) |
1505 | skb_put(skb, rds_ring->skb_size); | |
1506 | else | |
1507 | skb_put(skb, length); | |
1508 | ||
1509 | if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) { | |
1510 | adapter->stats.rxdropped++; | |
1511 | dev_kfree_skb(skb); | |
1512 | return buffer; | |
1513 | } | |
1514 | ||
1515 | skb->protocol = eth_type_trans(skb, netdev); | |
1516 | ||
1517 | if (vid != 0xffff) | |
1518 | __vlan_hwaccel_put_tag(skb, vid); | |
1519 | ||
1520 | napi_gro_receive(&sds_ring->napi, skb); | |
1521 | ||
1522 | adapter->stats.rx_pkts++; | |
1523 | adapter->stats.rxbytes += length; | |
1524 | ||
1525 | return buffer; | |
1526 | } | |
1527 | ||
1528 | static struct qlcnic_rx_buffer * | |
1529 | qlcnic_83xx_process_lro(struct qlcnic_adapter *adapter, | |
1530 | u8 ring, u64 sts_data[]) | |
1531 | { | |
1532 | struct net_device *netdev = adapter->netdev; | |
1533 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1534 | struct qlcnic_rx_buffer *buffer; | |
1535 | struct sk_buff *skb; | |
1536 | struct qlcnic_host_rds_ring *rds_ring; | |
1537 | struct iphdr *iph; | |
1538 | struct ipv6hdr *ipv6h; | |
1539 | struct tcphdr *th; | |
1540 | bool push; | |
1541 | int l2_hdr_offset, l4_hdr_offset; | |
53643a75 | 1542 | int index, is_lb_pkt; |
99e85879 | 1543 | u16 lro_length, length, data_offset, gso_size; |
53643a75 | 1544 | u16 vid = 0xffff, t_vid; |
4be41e92 SC |
1545 | |
1546 | if (unlikely(ring > adapter->max_rds_rings)) | |
1547 | return NULL; | |
1548 | ||
1549 | rds_ring = &recv_ctx->rds_rings[ring]; | |
1550 | ||
1551 | index = qlcnic_83xx_hndl(sts_data[0]); | |
1552 | if (unlikely(index > rds_ring->num_desc)) | |
1553 | return NULL; | |
1554 | ||
1555 | buffer = &rds_ring->rx_buf_arr[index]; | |
1556 | ||
1557 | lro_length = qlcnic_83xx_lro_pktln(sts_data[0]); | |
1558 | l2_hdr_offset = qlcnic_83xx_l2_hdr_off(sts_data[1]); | |
1559 | l4_hdr_offset = qlcnic_83xx_l4_hdr_off(sts_data[1]); | |
1560 | push = qlcnic_83xx_is_psh_bit(sts_data[1]); | |
1561 | ||
1562 | skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK); | |
1563 | if (!skb) | |
1564 | return buffer; | |
53643a75 SS |
1565 | |
1566 | if (adapter->drv_mac_learn && | |
1567 | (adapter->flags & QLCNIC_ESWITCH_ENABLED)) { | |
1568 | t_vid = 0; | |
1569 | is_lb_pkt = qlcnic_83xx_is_lb_pkt(sts_data[1], 1); | |
1570 | qlcnic_add_lb_filter(adapter, skb, is_lb_pkt, | |
1571 | cpu_to_le16(t_vid)); | |
1572 | } | |
4be41e92 SC |
1573 | if (qlcnic_83xx_is_tstamp(sts_data[1])) |
1574 | data_offset = l4_hdr_offset + QLCNIC_TCP_TS_HDR_SIZE; | |
1575 | else | |
1576 | data_offset = l4_hdr_offset + QLCNIC_TCP_HDR_SIZE; | |
1577 | ||
1578 | skb_put(skb, lro_length + data_offset); | |
1579 | skb_pull(skb, l2_hdr_offset); | |
1580 | ||
1581 | if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) { | |
1582 | adapter->stats.rxdropped++; | |
1583 | dev_kfree_skb(skb); | |
1584 | return buffer; | |
1585 | } | |
1586 | ||
1587 | skb->protocol = eth_type_trans(skb, netdev); | |
1588 | if (ntohs(skb->protocol) == ETH_P_IPV6) { | |
1589 | ipv6h = (struct ipv6hdr *)skb->data; | |
1590 | th = (struct tcphdr *)(skb->data + sizeof(struct ipv6hdr)); | |
1591 | ||
1592 | length = (th->doff << 2) + lro_length; | |
1593 | ipv6h->payload_len = htons(length); | |
1594 | } else { | |
1595 | iph = (struct iphdr *)skb->data; | |
1596 | th = (struct tcphdr *)(skb->data + (iph->ihl << 2)); | |
1597 | length = (iph->ihl << 2) + (th->doff << 2) + lro_length; | |
1598 | iph->tot_len = htons(length); | |
1599 | iph->check = 0; | |
1600 | iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl); | |
1601 | } | |
1602 | ||
1603 | th->psh = push; | |
1604 | length = skb->len; | |
1605 | ||
99e85879 SS |
1606 | if (adapter->flags & QLCNIC_FW_LRO_MSS_CAP) { |
1607 | gso_size = qlcnic_83xx_get_lro_sts_mss(sts_data[0]); | |
1608 | skb_shinfo(skb)->gso_size = gso_size; | |
1609 | if (skb->protocol == htons(ETH_P_IPV6)) | |
1610 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6; | |
1611 | else | |
1612 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; | |
1613 | } | |
1614 | ||
4be41e92 SC |
1615 | if (vid != 0xffff) |
1616 | __vlan_hwaccel_put_tag(skb, vid); | |
1617 | ||
1618 | netif_receive_skb(skb); | |
1619 | ||
1620 | adapter->stats.lro_pkts++; | |
1621 | adapter->stats.lrobytes += length; | |
1622 | return buffer; | |
1623 | } | |
1624 | ||
1625 | static int qlcnic_83xx_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, | |
1626 | int max) | |
1627 | { | |
1628 | struct qlcnic_host_rds_ring *rds_ring; | |
1629 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
1630 | struct list_head *cur; | |
1631 | struct status_desc *desc; | |
1632 | struct qlcnic_rx_buffer *rxbuf = NULL; | |
1633 | u8 ring; | |
1634 | u64 sts_data[2]; | |
1635 | int count = 0, opcode; | |
1636 | u32 consumer = sds_ring->consumer; | |
1637 | ||
1638 | while (count < max) { | |
1639 | desc = &sds_ring->desc_head[consumer]; | |
1640 | sts_data[1] = le64_to_cpu(desc->status_desc_data[1]); | |
1641 | opcode = qlcnic_83xx_opcode(sts_data[1]); | |
1642 | if (!opcode) | |
1643 | break; | |
1644 | sts_data[0] = le64_to_cpu(desc->status_desc_data[0]); | |
1645 | ring = QLCNIC_FETCH_RING_ID(sts_data[0]); | |
1646 | ||
1647 | switch (opcode) { | |
1648 | case QLC_83XX_REG_DESC: | |
1649 | rxbuf = qlcnic_83xx_process_rcv(adapter, sds_ring, | |
1650 | ring, sts_data); | |
1651 | break; | |
1652 | case QLC_83XX_LRO_DESC: | |
1653 | rxbuf = qlcnic_83xx_process_lro(adapter, ring, | |
1654 | sts_data); | |
1655 | break; | |
1656 | default: | |
1657 | dev_info(&adapter->pdev->dev, | |
1658 | "Unkonwn opcode: 0x%x\n", opcode); | |
1659 | goto skip; | |
1660 | } | |
1661 | ||
1662 | if (likely(rxbuf)) | |
1663 | list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]); | |
1664 | else | |
1665 | adapter->stats.null_rxbuf++; | |
1666 | skip: | |
1667 | desc = &sds_ring->desc_head[consumer]; | |
1668 | /* Reset the descriptor */ | |
1669 | desc->status_desc_data[1] = 0; | |
1670 | consumer = get_next_index(consumer, sds_ring->num_desc); | |
1671 | count++; | |
1672 | } | |
1673 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { | |
1674 | rds_ring = &adapter->recv_ctx->rds_rings[ring]; | |
1675 | if (!list_empty(&sds_ring->free_list[ring])) { | |
1676 | list_for_each(cur, &sds_ring->free_list[ring]) { | |
1677 | rxbuf = list_entry(cur, struct qlcnic_rx_buffer, | |
1678 | list); | |
1679 | qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf); | |
1680 | } | |
1681 | spin_lock(&rds_ring->lock); | |
1682 | list_splice_tail_init(&sds_ring->free_list[ring], | |
1683 | &rds_ring->free_list); | |
1684 | spin_unlock(&rds_ring->lock); | |
1685 | } | |
1686 | qlcnic_post_rx_buffers_nodb(adapter, rds_ring, ring); | |
1687 | } | |
1688 | if (count) { | |
1689 | sds_ring->consumer = consumer; | |
1690 | writel(consumer, sds_ring->crb_sts_consumer); | |
1691 | } | |
1692 | return count; | |
1693 | } | |
1694 | ||
1695 | static int qlcnic_83xx_poll(struct napi_struct *napi, int budget) | |
1696 | { | |
1697 | int tx_complete; | |
1698 | int work_done; | |
1699 | struct qlcnic_host_sds_ring *sds_ring; | |
1700 | struct qlcnic_adapter *adapter; | |
1701 | struct qlcnic_host_tx_ring *tx_ring; | |
1702 | ||
1703 | sds_ring = container_of(napi, struct qlcnic_host_sds_ring, napi); | |
1704 | adapter = sds_ring->adapter; | |
1705 | /* tx ring count = 1 */ | |
1706 | tx_ring = adapter->tx_ring; | |
1707 | ||
4be41e92 SC |
1708 | tx_complete = qlcnic_process_cmd_ring(adapter, tx_ring, budget); |
1709 | work_done = qlcnic_83xx_process_rcv_ring(sds_ring, budget); | |
1710 | if ((work_done < budget) && tx_complete) { | |
1711 | napi_complete(&sds_ring->napi); | |
ac166700 | 1712 | qlcnic_83xx_enable_intr(adapter, sds_ring); |
4be41e92 SC |
1713 | } |
1714 | ||
1715 | return work_done; | |
1716 | } | |
1717 | ||
1718 | static int qlcnic_83xx_msix_tx_poll(struct napi_struct *napi, int budget) | |
1719 | { | |
1720 | int work_done; | |
1721 | struct qlcnic_host_tx_ring *tx_ring; | |
1722 | struct qlcnic_adapter *adapter; | |
1723 | ||
1724 | budget = QLCNIC_TX_POLL_BUDGET; | |
1725 | tx_ring = container_of(napi, struct qlcnic_host_tx_ring, napi); | |
1726 | adapter = tx_ring->adapter; | |
1727 | work_done = qlcnic_process_cmd_ring(adapter, tx_ring, budget); | |
1728 | if (work_done) { | |
1729 | napi_complete(&tx_ring->napi); | |
1730 | if (test_bit(__QLCNIC_DEV_UP , &adapter->state)) | |
1731 | qlcnic_83xx_enable_tx_intr(adapter, tx_ring); | |
1732 | } | |
1733 | ||
1734 | return work_done; | |
1735 | } | |
1736 | ||
1737 | static int qlcnic_83xx_rx_poll(struct napi_struct *napi, int budget) | |
1738 | { | |
1739 | int work_done; | |
1740 | struct qlcnic_host_sds_ring *sds_ring; | |
1741 | struct qlcnic_adapter *adapter; | |
1742 | ||
1743 | sds_ring = container_of(napi, struct qlcnic_host_sds_ring, napi); | |
1744 | adapter = sds_ring->adapter; | |
1745 | work_done = qlcnic_83xx_process_rcv_ring(sds_ring, budget); | |
1746 | if (work_done < budget) { | |
1747 | napi_complete(&sds_ring->napi); | |
1748 | if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) | |
1749 | qlcnic_83xx_enable_intr(adapter, sds_ring); | |
1750 | } | |
1751 | ||
1752 | return work_done; | |
1753 | } | |
1754 | ||
1755 | void qlcnic_83xx_napi_enable(struct qlcnic_adapter *adapter) | |
1756 | { | |
1757 | int ring; | |
1758 | struct qlcnic_host_sds_ring *sds_ring; | |
1759 | struct qlcnic_host_tx_ring *tx_ring; | |
1760 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1761 | ||
1762 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
1763 | return; | |
1764 | ||
1765 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
1766 | sds_ring = &recv_ctx->sds_rings[ring]; | |
1767 | napi_enable(&sds_ring->napi); | |
ac166700 HM |
1768 | if (adapter->flags & QLCNIC_MSIX_ENABLED) |
1769 | qlcnic_83xx_enable_intr(adapter, sds_ring); | |
4be41e92 SC |
1770 | } |
1771 | ||
1772 | if (adapter->flags & QLCNIC_MSIX_ENABLED) { | |
1773 | for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) { | |
1774 | tx_ring = &adapter->tx_ring[ring]; | |
1775 | napi_enable(&tx_ring->napi); | |
1776 | qlcnic_83xx_enable_tx_intr(adapter, tx_ring); | |
1777 | } | |
1778 | } | |
1779 | } | |
1780 | ||
1781 | void qlcnic_83xx_napi_disable(struct qlcnic_adapter *adapter) | |
1782 | { | |
1783 | int ring; | |
1784 | struct qlcnic_host_sds_ring *sds_ring; | |
1785 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1786 | struct qlcnic_host_tx_ring *tx_ring; | |
1787 | ||
1788 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
1789 | return; | |
1790 | ||
1791 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
1792 | sds_ring = &recv_ctx->sds_rings[ring]; | |
ac166700 HM |
1793 | if (adapter->flags & QLCNIC_MSIX_ENABLED) |
1794 | qlcnic_83xx_disable_intr(adapter, sds_ring); | |
4be41e92 SC |
1795 | napi_synchronize(&sds_ring->napi); |
1796 | napi_disable(&sds_ring->napi); | |
1797 | } | |
1798 | ||
1799 | if (adapter->flags & QLCNIC_MSIX_ENABLED) { | |
1800 | for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) { | |
1801 | tx_ring = &adapter->tx_ring[ring]; | |
1802 | qlcnic_83xx_disable_tx_intr(adapter, tx_ring); | |
1803 | napi_synchronize(&tx_ring->napi); | |
1804 | napi_disable(&tx_ring->napi); | |
1805 | } | |
1806 | } | |
1807 | } | |
1808 | ||
1809 | int qlcnic_83xx_napi_add(struct qlcnic_adapter *adapter, | |
1810 | struct net_device *netdev) | |
1811 | { | |
1812 | int ring, max_sds_rings; | |
1813 | struct qlcnic_host_sds_ring *sds_ring; | |
1814 | struct qlcnic_host_tx_ring *tx_ring; | |
1815 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1816 | ||
1817 | if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) | |
1818 | return -ENOMEM; | |
1819 | ||
1820 | max_sds_rings = adapter->max_sds_rings; | |
1821 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
1822 | sds_ring = &recv_ctx->sds_rings[ring]; | |
1823 | if (adapter->flags & QLCNIC_MSIX_ENABLED) | |
1824 | netif_napi_add(netdev, &sds_ring->napi, | |
1825 | qlcnic_83xx_rx_poll, | |
1826 | QLCNIC_NETDEV_WEIGHT * 2); | |
1827 | else | |
1828 | netif_napi_add(netdev, &sds_ring->napi, | |
1829 | qlcnic_83xx_poll, | |
1830 | QLCNIC_NETDEV_WEIGHT / max_sds_rings); | |
1831 | } | |
1832 | ||
1833 | if (qlcnic_alloc_tx_rings(adapter, netdev)) { | |
1834 | qlcnic_free_sds_rings(recv_ctx); | |
1835 | return -ENOMEM; | |
1836 | } | |
1837 | ||
1838 | if (adapter->flags & QLCNIC_MSIX_ENABLED) { | |
1839 | for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) { | |
1840 | tx_ring = &adapter->tx_ring[ring]; | |
1841 | netif_napi_add(netdev, &tx_ring->napi, | |
1842 | qlcnic_83xx_msix_tx_poll, | |
1843 | QLCNIC_NETDEV_WEIGHT); | |
1844 | } | |
1845 | } | |
1846 | ||
1847 | return 0; | |
1848 | } | |
1849 | ||
1850 | void qlcnic_83xx_napi_del(struct qlcnic_adapter *adapter) | |
1851 | { | |
1852 | int ring; | |
1853 | struct qlcnic_host_sds_ring *sds_ring; | |
1854 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1855 | struct qlcnic_host_tx_ring *tx_ring; | |
1856 | ||
1857 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
1858 | sds_ring = &recv_ctx->sds_rings[ring]; | |
1859 | netif_napi_del(&sds_ring->napi); | |
1860 | } | |
1861 | ||
1862 | qlcnic_free_sds_rings(adapter->recv_ctx); | |
1863 | ||
1864 | if ((adapter->flags & QLCNIC_MSIX_ENABLED)) { | |
1865 | for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) { | |
1866 | tx_ring = &adapter->tx_ring[ring]; | |
1867 | netif_napi_del(&tx_ring->napi); | |
1868 | } | |
1869 | } | |
1870 | ||
1871 | qlcnic_free_tx_rings(adapter); | |
1872 | } | |
1873 | ||
1874 | void qlcnic_83xx_process_rcv_diag(struct qlcnic_adapter *adapter, | |
1875 | int ring, u64 sts_data[]) | |
1876 | { | |
1877 | struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; | |
1878 | struct sk_buff *skb; | |
1879 | struct qlcnic_host_rds_ring *rds_ring; | |
1880 | int index, length; | |
1881 | ||
1882 | if (unlikely(ring >= adapter->max_rds_rings)) | |
1883 | return; | |
1884 | ||
1885 | rds_ring = &recv_ctx->rds_rings[ring]; | |
1886 | index = qlcnic_83xx_hndl(sts_data[0]); | |
1887 | if (unlikely(index >= rds_ring->num_desc)) | |
1888 | return; | |
1889 | ||
1890 | length = qlcnic_83xx_pktln(sts_data[0]); | |
1891 | ||
1892 | skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK); | |
1893 | if (!skb) | |
1894 | return; | |
1895 | ||
1896 | if (length > rds_ring->skb_size) | |
1897 | skb_put(skb, rds_ring->skb_size); | |
1898 | else | |
1899 | skb_put(skb, length); | |
1900 | ||
1901 | if (!qlcnic_check_loopback_buff(skb->data, adapter->mac_addr)) | |
1902 | adapter->ahw->diag_cnt++; | |
1903 | else | |
1904 | dump_skb(skb, adapter); | |
1905 | ||
1906 | dev_kfree_skb_any(skb); | |
1907 | return; | |
1908 | } | |
1909 | ||
1910 | void qlcnic_83xx_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring) | |
1911 | { | |
1912 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
1913 | struct status_desc *desc; | |
1914 | u64 sts_data[2]; | |
1915 | int ring, opcode; | |
1916 | u32 consumer = sds_ring->consumer; | |
1917 | ||
1918 | desc = &sds_ring->desc_head[consumer]; | |
1919 | sts_data[0] = le64_to_cpu(desc->status_desc_data[0]); | |
1920 | sts_data[1] = le64_to_cpu(desc->status_desc_data[1]); | |
1921 | opcode = qlcnic_83xx_opcode(sts_data[1]); | |
1922 | if (!opcode) | |
1923 | return; | |
1924 | ||
1925 | ring = QLCNIC_FETCH_RING_ID(qlcnic_83xx_hndl(sts_data[0])); | |
1926 | qlcnic_83xx_process_rcv_diag(adapter, ring, sts_data); | |
1927 | desc = &sds_ring->desc_head[consumer]; | |
1928 | desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM); | |
1929 | consumer = get_next_index(consumer, sds_ring->num_desc); | |
1930 | sds_ring->consumer = consumer; | |
1931 | writel(consumer, sds_ring->crb_sts_consumer); | |
1932 | } |