2 * Copyright (C) 2005 - 2010 ServerEngines
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
10 * Contact Information:
11 * linux-drivers@serverengines.com
14 * 209 N. Fair Oaks Ave
20 #include <asm/div64.h>
22 MODULE_VERSION(DRV_VER
);
23 MODULE_DEVICE_TABLE(pci
, be_dev_ids
);
24 MODULE_DESCRIPTION(DRV_DESC
" " DRV_VER
);
25 MODULE_AUTHOR("ServerEngines Corporation");
26 MODULE_LICENSE("GPL");
28 static unsigned int rx_frag_size
= 2048;
29 static unsigned int num_vfs
;
30 module_param(rx_frag_size
, uint
, S_IRUGO
);
31 module_param(num_vfs
, uint
, S_IRUGO
);
32 MODULE_PARM_DESC(rx_frag_size
, "Size of a fragment that holds rcvd data.");
33 MODULE_PARM_DESC(num_vfs
, "Number of PCI VFs to initialize");
35 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids
) = {
36 { PCI_DEVICE(BE_VENDOR_ID
, BE_DEVICE_ID1
) },
37 { PCI_DEVICE(BE_VENDOR_ID
, BE_DEVICE_ID2
) },
38 { PCI_DEVICE(BE_VENDOR_ID
, OC_DEVICE_ID1
) },
39 { PCI_DEVICE(BE_VENDOR_ID
, OC_DEVICE_ID2
) },
42 MODULE_DEVICE_TABLE(pci
, be_dev_ids
);
44 static void be_queue_free(struct be_adapter
*adapter
, struct be_queue_info
*q
)
46 struct be_dma_mem
*mem
= &q
->dma_mem
;
48 pci_free_consistent(adapter
->pdev
, mem
->size
,
52 static int be_queue_alloc(struct be_adapter
*adapter
, struct be_queue_info
*q
,
53 u16 len
, u16 entry_size
)
55 struct be_dma_mem
*mem
= &q
->dma_mem
;
57 memset(q
, 0, sizeof(*q
));
59 q
->entry_size
= entry_size
;
60 mem
->size
= len
* entry_size
;
61 mem
->va
= pci_alloc_consistent(adapter
->pdev
, mem
->size
, &mem
->dma
);
64 memset(mem
->va
, 0, mem
->size
);
68 static void be_intr_set(struct be_adapter
*adapter
, bool enable
)
70 u8 __iomem
*addr
= adapter
->pcicfg
+ PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET
;
71 u32 reg
= ioread32(addr
);
72 u32 enabled
= reg
& MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK
;
77 if (!enabled
&& enable
)
78 reg
|= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK
;
79 else if (enabled
&& !enable
)
80 reg
&= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK
;
87 static void be_rxq_notify(struct be_adapter
*adapter
, u16 qid
, u16 posted
)
90 val
|= qid
& DB_RQ_RING_ID_MASK
;
91 val
|= posted
<< DB_RQ_NUM_POSTED_SHIFT
;
94 iowrite32(val
, adapter
->db
+ DB_RQ_OFFSET
);
97 static void be_txq_notify(struct be_adapter
*adapter
, u16 qid
, u16 posted
)
100 val
|= qid
& DB_TXULP_RING_ID_MASK
;
101 val
|= (posted
& DB_TXULP_NUM_POSTED_MASK
) << DB_TXULP_NUM_POSTED_SHIFT
;
104 iowrite32(val
, adapter
->db
+ DB_TXULP1_OFFSET
);
107 static void be_eq_notify(struct be_adapter
*adapter
, u16 qid
,
108 bool arm
, bool clear_int
, u16 num_popped
)
111 val
|= qid
& DB_EQ_RING_ID_MASK
;
113 if (adapter
->eeh_err
)
117 val
|= 1 << DB_EQ_REARM_SHIFT
;
119 val
|= 1 << DB_EQ_CLR_SHIFT
;
120 val
|= 1 << DB_EQ_EVNT_SHIFT
;
121 val
|= num_popped
<< DB_EQ_NUM_POPPED_SHIFT
;
122 iowrite32(val
, adapter
->db
+ DB_EQ_OFFSET
);
125 void be_cq_notify(struct be_adapter
*adapter
, u16 qid
, bool arm
, u16 num_popped
)
128 val
|= qid
& DB_CQ_RING_ID_MASK
;
130 if (adapter
->eeh_err
)
134 val
|= 1 << DB_CQ_REARM_SHIFT
;
135 val
|= num_popped
<< DB_CQ_NUM_POPPED_SHIFT
;
136 iowrite32(val
, adapter
->db
+ DB_CQ_OFFSET
);
139 static int be_mac_addr_set(struct net_device
*netdev
, void *p
)
141 struct be_adapter
*adapter
= netdev_priv(netdev
);
142 struct sockaddr
*addr
= p
;
145 if (!is_valid_ether_addr(addr
->sa_data
))
146 return -EADDRNOTAVAIL
;
148 /* MAC addr configuration will be done in hardware for VFs
149 * by their corresponding PFs. Just copy to netdev addr here
151 if (!be_physfn(adapter
))
154 status
= be_cmd_pmac_del(adapter
, adapter
->if_handle
, adapter
->pmac_id
);
158 status
= be_cmd_pmac_add(adapter
, (u8
*)addr
->sa_data
,
159 adapter
->if_handle
, &adapter
->pmac_id
);
162 memcpy(netdev
->dev_addr
, addr
->sa_data
, netdev
->addr_len
);
167 void netdev_stats_update(struct be_adapter
*adapter
)
169 struct be_hw_stats
*hw_stats
= hw_stats_from_cmd(adapter
->stats
.cmd
.va
);
170 struct be_rxf_stats
*rxf_stats
= &hw_stats
->rxf
;
171 struct be_port_rxf_stats
*port_stats
=
172 &rxf_stats
->port
[adapter
->port_num
];
173 struct net_device_stats
*dev_stats
= &adapter
->netdev
->stats
;
174 struct be_erx_stats
*erx_stats
= &hw_stats
->erx
;
176 dev_stats
->rx_packets
= drvr_stats(adapter
)->be_rx_pkts
;
177 dev_stats
->tx_packets
= drvr_stats(adapter
)->be_tx_pkts
;
178 dev_stats
->rx_bytes
= drvr_stats(adapter
)->be_rx_bytes
;
179 dev_stats
->tx_bytes
= drvr_stats(adapter
)->be_tx_bytes
;
181 /* bad pkts received */
182 dev_stats
->rx_errors
= port_stats
->rx_crc_errors
+
183 port_stats
->rx_alignment_symbol_errors
+
184 port_stats
->rx_in_range_errors
+
185 port_stats
->rx_out_range_errors
+
186 port_stats
->rx_frame_too_long
+
187 port_stats
->rx_dropped_too_small
+
188 port_stats
->rx_dropped_too_short
+
189 port_stats
->rx_dropped_header_too_small
+
190 port_stats
->rx_dropped_tcp_length
+
191 port_stats
->rx_dropped_runt
+
192 port_stats
->rx_tcp_checksum_errs
+
193 port_stats
->rx_ip_checksum_errs
+
194 port_stats
->rx_udp_checksum_errs
;
196 /* no space in linux buffers: best possible approximation */
197 dev_stats
->rx_dropped
=
198 erx_stats
->rx_drops_no_fragments
[adapter
->rx_obj
.q
.id
];
200 /* detailed rx errors */
201 dev_stats
->rx_length_errors
= port_stats
->rx_in_range_errors
+
202 port_stats
->rx_out_range_errors
+
203 port_stats
->rx_frame_too_long
;
205 /* receive ring buffer overflow */
206 dev_stats
->rx_over_errors
= 0;
208 dev_stats
->rx_crc_errors
= port_stats
->rx_crc_errors
;
210 /* frame alignment errors */
211 dev_stats
->rx_frame_errors
= port_stats
->rx_alignment_symbol_errors
;
213 /* receiver fifo overrun */
214 /* drops_no_pbuf is no per i/f, it's per BE card */
215 dev_stats
->rx_fifo_errors
= port_stats
->rx_fifo_overflow
+
216 port_stats
->rx_input_fifo_overflow
+
217 rxf_stats
->rx_drops_no_pbuf
;
218 /* receiver missed packetd */
219 dev_stats
->rx_missed_errors
= 0;
221 /* packet transmit problems */
222 dev_stats
->tx_errors
= 0;
224 /* no space available in linux */
225 dev_stats
->tx_dropped
= 0;
227 dev_stats
->multicast
= port_stats
->rx_multicast_frames
;
228 dev_stats
->collisions
= 0;
230 /* detailed tx_errors */
231 dev_stats
->tx_aborted_errors
= 0;
232 dev_stats
->tx_carrier_errors
= 0;
233 dev_stats
->tx_fifo_errors
= 0;
234 dev_stats
->tx_heartbeat_errors
= 0;
235 dev_stats
->tx_window_errors
= 0;
238 void be_link_status_update(struct be_adapter
*adapter
, bool link_up
)
240 struct net_device
*netdev
= adapter
->netdev
;
242 /* If link came up or went down */
243 if (adapter
->link_up
!= link_up
) {
244 adapter
->link_speed
= -1;
246 netif_start_queue(netdev
);
247 netif_carrier_on(netdev
);
248 printk(KERN_INFO
"%s: Link up\n", netdev
->name
);
250 netif_stop_queue(netdev
);
251 netif_carrier_off(netdev
);
252 printk(KERN_INFO
"%s: Link down\n", netdev
->name
);
254 adapter
->link_up
= link_up
;
258 /* Update the EQ delay n BE based on the RX frags consumed / sec */
259 static void be_rx_eqd_update(struct be_adapter
*adapter
)
261 struct be_eq_obj
*rx_eq
= &adapter
->rx_eq
;
262 struct be_drvr_stats
*stats
= &adapter
->stats
.drvr_stats
;
266 if (!rx_eq
->enable_aic
)
270 if (time_before(now
, stats
->rx_fps_jiffies
)) {
271 stats
->rx_fps_jiffies
= now
;
275 /* Update once a second */
276 if ((now
- stats
->rx_fps_jiffies
) < HZ
)
279 stats
->be_rx_fps
= (stats
->be_rx_frags
- stats
->be_prev_rx_frags
) /
280 ((now
- stats
->rx_fps_jiffies
) / HZ
);
282 stats
->rx_fps_jiffies
= now
;
283 stats
->be_prev_rx_frags
= stats
->be_rx_frags
;
284 eqd
= stats
->be_rx_fps
/ 110000;
286 if (eqd
> rx_eq
->max_eqd
)
287 eqd
= rx_eq
->max_eqd
;
288 if (eqd
< rx_eq
->min_eqd
)
289 eqd
= rx_eq
->min_eqd
;
292 if (eqd
!= rx_eq
->cur_eqd
)
293 be_cmd_modify_eqd(adapter
, rx_eq
->q
.id
, eqd
);
295 rx_eq
->cur_eqd
= eqd
;
298 static struct net_device_stats
*be_get_stats(struct net_device
*dev
)
303 static u32
be_calc_rate(u64 bytes
, unsigned long ticks
)
307 do_div(rate
, ticks
/ HZ
);
308 rate
<<= 3; /* bytes/sec -> bits/sec */
309 do_div(rate
, 1000000ul); /* MB/Sec */
314 static void be_tx_rate_update(struct be_adapter
*adapter
)
316 struct be_drvr_stats
*stats
= drvr_stats(adapter
);
319 /* Wrapped around? */
320 if (time_before(now
, stats
->be_tx_jiffies
)) {
321 stats
->be_tx_jiffies
= now
;
325 /* Update tx rate once in two seconds */
326 if ((now
- stats
->be_tx_jiffies
) > 2 * HZ
) {
327 stats
->be_tx_rate
= be_calc_rate(stats
->be_tx_bytes
328 - stats
->be_tx_bytes_prev
,
329 now
- stats
->be_tx_jiffies
);
330 stats
->be_tx_jiffies
= now
;
331 stats
->be_tx_bytes_prev
= stats
->be_tx_bytes
;
335 static void be_tx_stats_update(struct be_adapter
*adapter
,
336 u32 wrb_cnt
, u32 copied
, u32 gso_segs
, bool stopped
)
338 struct be_drvr_stats
*stats
= drvr_stats(adapter
);
340 stats
->be_tx_wrbs
+= wrb_cnt
;
341 stats
->be_tx_bytes
+= copied
;
342 stats
->be_tx_pkts
+= (gso_segs
? gso_segs
: 1);
344 stats
->be_tx_stops
++;
347 /* Determine number of WRB entries needed to xmit data in an skb */
348 static u32
wrb_cnt_for_skb(struct sk_buff
*skb
, bool *dummy
)
350 int cnt
= (skb
->len
> skb
->data_len
);
352 cnt
+= skb_shinfo(skb
)->nr_frags
;
354 /* to account for hdr wrb */
357 /* add a dummy to make it an even num */
362 BUG_ON(cnt
> BE_MAX_TX_FRAG_COUNT
);
366 static inline void wrb_fill(struct be_eth_wrb
*wrb
, u64 addr
, int len
)
368 wrb
->frag_pa_hi
= upper_32_bits(addr
);
369 wrb
->frag_pa_lo
= addr
& 0xFFFFFFFF;
370 wrb
->frag_len
= len
& ETH_WRB_FRAG_LEN_MASK
;
373 static void wrb_fill_hdr(struct be_eth_hdr_wrb
*hdr
, struct sk_buff
*skb
,
374 bool vlan
, u32 wrb_cnt
, u32 len
)
376 memset(hdr
, 0, sizeof(*hdr
));
378 AMAP_SET_BITS(struct amap_eth_hdr_wrb
, crc
, hdr
, 1);
380 if (skb_is_gso(skb
)) {
381 AMAP_SET_BITS(struct amap_eth_hdr_wrb
, lso
, hdr
, 1);
382 AMAP_SET_BITS(struct amap_eth_hdr_wrb
, lso_mss
,
383 hdr
, skb_shinfo(skb
)->gso_size
);
384 if (skb_is_gso_v6(skb
))
385 AMAP_SET_BITS(struct amap_eth_hdr_wrb
, lso6
, hdr
, 1);
386 } else if (skb
->ip_summed
== CHECKSUM_PARTIAL
) {
388 AMAP_SET_BITS(struct amap_eth_hdr_wrb
, tcpcs
, hdr
, 1);
389 else if (is_udp_pkt(skb
))
390 AMAP_SET_BITS(struct amap_eth_hdr_wrb
, udpcs
, hdr
, 1);
393 if (vlan
&& vlan_tx_tag_present(skb
)) {
394 AMAP_SET_BITS(struct amap_eth_hdr_wrb
, vlan
, hdr
, 1);
395 AMAP_SET_BITS(struct amap_eth_hdr_wrb
, vlan_tag
,
396 hdr
, vlan_tx_tag_get(skb
));
399 AMAP_SET_BITS(struct amap_eth_hdr_wrb
, event
, hdr
, 1);
400 AMAP_SET_BITS(struct amap_eth_hdr_wrb
, complete
, hdr
, 1);
401 AMAP_SET_BITS(struct amap_eth_hdr_wrb
, num_wrb
, hdr
, wrb_cnt
);
402 AMAP_SET_BITS(struct amap_eth_hdr_wrb
, len
, hdr
, len
);
405 static void unmap_tx_frag(struct pci_dev
*pdev
, struct be_eth_wrb
*wrb
,
410 be_dws_le_to_cpu(wrb
, sizeof(*wrb
));
412 dma
= (u64
)wrb
->frag_pa_hi
<< 32 | (u64
)wrb
->frag_pa_lo
;
415 pci_unmap_single(pdev
, dma
, wrb
->frag_len
,
418 pci_unmap_page(pdev
, dma
, wrb
->frag_len
,
423 static int make_tx_wrbs(struct be_adapter
*adapter
,
424 struct sk_buff
*skb
, u32 wrb_cnt
, bool dummy_wrb
)
428 struct pci_dev
*pdev
= adapter
->pdev
;
429 struct sk_buff
*first_skb
= skb
;
430 struct be_queue_info
*txq
= &adapter
->tx_obj
.q
;
431 struct be_eth_wrb
*wrb
;
432 struct be_eth_hdr_wrb
*hdr
;
433 bool map_single
= false;
436 hdr
= queue_head_node(txq
);
438 map_head
= txq
->head
;
440 if (skb
->len
> skb
->data_len
) {
441 int len
= skb_headlen(skb
);
442 busaddr
= pci_map_single(pdev
, skb
->data
, len
,
444 if (pci_dma_mapping_error(pdev
, busaddr
))
447 wrb
= queue_head_node(txq
);
448 wrb_fill(wrb
, busaddr
, len
);
449 be_dws_cpu_to_le(wrb
, sizeof(*wrb
));
454 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
455 struct skb_frag_struct
*frag
=
456 &skb_shinfo(skb
)->frags
[i
];
457 busaddr
= pci_map_page(pdev
, frag
->page
,
459 frag
->size
, PCI_DMA_TODEVICE
);
460 if (pci_dma_mapping_error(pdev
, busaddr
))
462 wrb
= queue_head_node(txq
);
463 wrb_fill(wrb
, busaddr
, frag
->size
);
464 be_dws_cpu_to_le(wrb
, sizeof(*wrb
));
466 copied
+= frag
->size
;
470 wrb
= queue_head_node(txq
);
472 be_dws_cpu_to_le(wrb
, sizeof(*wrb
));
476 wrb_fill_hdr(hdr
, first_skb
, adapter
->vlan_grp
? true : false,
478 be_dws_cpu_to_le(hdr
, sizeof(*hdr
));
482 txq
->head
= map_head
;
484 wrb
= queue_head_node(txq
);
485 unmap_tx_frag(pdev
, wrb
, map_single
);
487 copied
-= wrb
->frag_len
;
493 static netdev_tx_t
be_xmit(struct sk_buff
*skb
,
494 struct net_device
*netdev
)
496 struct be_adapter
*adapter
= netdev_priv(netdev
);
497 struct be_tx_obj
*tx_obj
= &adapter
->tx_obj
;
498 struct be_queue_info
*txq
= &tx_obj
->q
;
499 u32 wrb_cnt
= 0, copied
= 0;
500 u32 start
= txq
->head
;
501 bool dummy_wrb
, stopped
= false;
503 wrb_cnt
= wrb_cnt_for_skb(skb
, &dummy_wrb
);
505 copied
= make_tx_wrbs(adapter
, skb
, wrb_cnt
, dummy_wrb
);
507 /* record the sent skb in the sent_skb table */
508 BUG_ON(tx_obj
->sent_skb_list
[start
]);
509 tx_obj
->sent_skb_list
[start
] = skb
;
511 /* Ensure txq has space for the next skb; Else stop the queue
512 * *BEFORE* ringing the tx doorbell, so that we serialze the
513 * tx compls of the current transmit which'll wake up the queue
515 atomic_add(wrb_cnt
, &txq
->used
);
516 if ((BE_MAX_TX_FRAG_COUNT
+ atomic_read(&txq
->used
)) >=
518 netif_stop_queue(netdev
);
522 be_txq_notify(adapter
, txq
->id
, wrb_cnt
);
524 be_tx_stats_update(adapter
, wrb_cnt
, copied
,
525 skb_shinfo(skb
)->gso_segs
, stopped
);
528 dev_kfree_skb_any(skb
);
533 static int be_change_mtu(struct net_device
*netdev
, int new_mtu
)
535 struct be_adapter
*adapter
= netdev_priv(netdev
);
536 if (new_mtu
< BE_MIN_MTU
||
537 new_mtu
> (BE_MAX_JUMBO_FRAME_SIZE
-
538 (ETH_HLEN
+ ETH_FCS_LEN
))) {
539 dev_info(&adapter
->pdev
->dev
,
540 "MTU must be between %d and %d bytes\n",
542 (BE_MAX_JUMBO_FRAME_SIZE
- (ETH_HLEN
+ ETH_FCS_LEN
)));
545 dev_info(&adapter
->pdev
->dev
, "MTU changed from %d to %d bytes\n",
546 netdev
->mtu
, new_mtu
);
547 netdev
->mtu
= new_mtu
;
552 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
553 * If the user configures more, place BE in vlan promiscuous mode.
555 static int be_vid_config(struct be_adapter
*adapter
)
557 u16 vtag
[BE_NUM_VLANS_SUPPORTED
];
561 if (adapter
->vlans_added
<= adapter
->max_vlans
) {
562 /* Construct VLAN Table to give to HW */
563 for (i
= 0; i
< VLAN_GROUP_ARRAY_LEN
; i
++) {
564 if (adapter
->vlan_tag
[i
]) {
565 vtag
[ntags
] = cpu_to_le16(i
);
569 status
= be_cmd_vlan_config(adapter
, adapter
->if_handle
,
572 status
= be_cmd_vlan_config(adapter
, adapter
->if_handle
,
578 static void be_vlan_register(struct net_device
*netdev
, struct vlan_group
*grp
)
580 struct be_adapter
*adapter
= netdev_priv(netdev
);
581 struct be_eq_obj
*rx_eq
= &adapter
->rx_eq
;
582 struct be_eq_obj
*tx_eq
= &adapter
->tx_eq
;
584 be_eq_notify(adapter
, rx_eq
->q
.id
, false, false, 0);
585 be_eq_notify(adapter
, tx_eq
->q
.id
, false, false, 0);
586 adapter
->vlan_grp
= grp
;
587 be_eq_notify(adapter
, rx_eq
->q
.id
, true, false, 0);
588 be_eq_notify(adapter
, tx_eq
->q
.id
, true, false, 0);
591 static void be_vlan_add_vid(struct net_device
*netdev
, u16 vid
)
593 struct be_adapter
*adapter
= netdev_priv(netdev
);
595 if (!be_physfn(adapter
))
598 adapter
->vlan_tag
[vid
] = 1;
599 adapter
->vlans_added
++;
600 if (adapter
->vlans_added
<= (adapter
->max_vlans
+ 1))
601 be_vid_config(adapter
);
604 static void be_vlan_rem_vid(struct net_device
*netdev
, u16 vid
)
606 struct be_adapter
*adapter
= netdev_priv(netdev
);
608 if (!be_physfn(adapter
))
611 adapter
->vlan_tag
[vid
] = 0;
612 vlan_group_set_device(adapter
->vlan_grp
, vid
, NULL
);
613 adapter
->vlans_added
--;
614 if (adapter
->vlans_added
<= adapter
->max_vlans
)
615 be_vid_config(adapter
);
618 static void be_set_multicast_list(struct net_device
*netdev
)
620 struct be_adapter
*adapter
= netdev_priv(netdev
);
622 if (netdev
->flags
& IFF_PROMISC
) {
623 be_cmd_promiscuous_config(adapter
, adapter
->port_num
, 1);
624 adapter
->promiscuous
= true;
628 /* BE was previously in promiscous mode; disable it */
629 if (adapter
->promiscuous
) {
630 adapter
->promiscuous
= false;
631 be_cmd_promiscuous_config(adapter
, adapter
->port_num
, 0);
634 /* Enable multicast promisc if num configured exceeds what we support */
635 if (netdev
->flags
& IFF_ALLMULTI
||
636 netdev_mc_count(netdev
) > BE_MAX_MC
) {
637 be_cmd_multicast_set(adapter
, adapter
->if_handle
, NULL
,
638 &adapter
->mc_cmd_mem
);
642 be_cmd_multicast_set(adapter
, adapter
->if_handle
, netdev
,
643 &adapter
->mc_cmd_mem
);
648 static int be_set_vf_mac(struct net_device
*netdev
, int vf
, u8
*mac
)
650 struct be_adapter
*adapter
= netdev_priv(netdev
);
653 if (!adapter
->sriov_enabled
)
656 if (!is_valid_ether_addr(mac
) || (vf
>= num_vfs
))
659 status
= be_cmd_pmac_del(adapter
, adapter
->vf_if_handle
[vf
],
660 adapter
->vf_pmac_id
[vf
]);
662 status
= be_cmd_pmac_add(adapter
, mac
, adapter
->vf_if_handle
[vf
],
663 &adapter
->vf_pmac_id
[vf
]);
665 dev_err(&adapter
->pdev
->dev
, "MAC %pM set on VF %d Failed\n",
670 static void be_rx_rate_update(struct be_adapter
*adapter
)
672 struct be_drvr_stats
*stats
= drvr_stats(adapter
);
676 if (time_before(now
, stats
->be_rx_jiffies
)) {
677 stats
->be_rx_jiffies
= now
;
681 /* Update the rate once in two seconds */
682 if ((now
- stats
->be_rx_jiffies
) < 2 * HZ
)
685 stats
->be_rx_rate
= be_calc_rate(stats
->be_rx_bytes
686 - stats
->be_rx_bytes_prev
,
687 now
- stats
->be_rx_jiffies
);
688 stats
->be_rx_jiffies
= now
;
689 stats
->be_rx_bytes_prev
= stats
->be_rx_bytes
;
692 static void be_rx_stats_update(struct be_adapter
*adapter
,
693 u32 pktsize
, u16 numfrags
)
695 struct be_drvr_stats
*stats
= drvr_stats(adapter
);
697 stats
->be_rx_compl
++;
698 stats
->be_rx_frags
+= numfrags
;
699 stats
->be_rx_bytes
+= pktsize
;
703 static inline bool do_pkt_csum(struct be_eth_rx_compl
*rxcp
, bool cso
)
705 u8 l4_cksm
, ip_version
, ipcksm
, tcpf
= 0, udpf
= 0, ipv6_chk
;
707 l4_cksm
= AMAP_GET_BITS(struct amap_eth_rx_compl
, l4_cksm
, rxcp
);
708 ipcksm
= AMAP_GET_BITS(struct amap_eth_rx_compl
, ipcksm
, rxcp
);
709 ip_version
= AMAP_GET_BITS(struct amap_eth_rx_compl
, ip_version
, rxcp
);
711 tcpf
= AMAP_GET_BITS(struct amap_eth_rx_compl
, tcpf
, rxcp
);
712 udpf
= AMAP_GET_BITS(struct amap_eth_rx_compl
, udpf
, rxcp
);
714 ipv6_chk
= (ip_version
&& (tcpf
|| udpf
));
716 return ((l4_cksm
&& ipv6_chk
&& ipcksm
) && cso
) ? false : true;
719 static struct be_rx_page_info
*
720 get_rx_page_info(struct be_adapter
*adapter
, u16 frag_idx
)
722 struct be_rx_page_info
*rx_page_info
;
723 struct be_queue_info
*rxq
= &adapter
->rx_obj
.q
;
725 rx_page_info
= &adapter
->rx_obj
.page_info_tbl
[frag_idx
];
726 BUG_ON(!rx_page_info
->page
);
728 if (rx_page_info
->last_page_user
) {
729 pci_unmap_page(adapter
->pdev
, dma_unmap_addr(rx_page_info
, bus
),
730 adapter
->big_page_size
, PCI_DMA_FROMDEVICE
);
731 rx_page_info
->last_page_user
= false;
734 atomic_dec(&rxq
->used
);
738 /* Throwaway the data in the Rx completion */
739 static void be_rx_compl_discard(struct be_adapter
*adapter
,
740 struct be_eth_rx_compl
*rxcp
)
742 struct be_queue_info
*rxq
= &adapter
->rx_obj
.q
;
743 struct be_rx_page_info
*page_info
;
744 u16 rxq_idx
, i
, num_rcvd
;
746 rxq_idx
= AMAP_GET_BITS(struct amap_eth_rx_compl
, fragndx
, rxcp
);
747 num_rcvd
= AMAP_GET_BITS(struct amap_eth_rx_compl
, numfrags
, rxcp
);
749 for (i
= 0; i
< num_rcvd
; i
++) {
750 page_info
= get_rx_page_info(adapter
, rxq_idx
);
751 put_page(page_info
->page
);
752 memset(page_info
, 0, sizeof(*page_info
));
753 index_inc(&rxq_idx
, rxq
->len
);
758 * skb_fill_rx_data forms a complete skb for an ether frame
761 static void skb_fill_rx_data(struct be_adapter
*adapter
,
762 struct sk_buff
*skb
, struct be_eth_rx_compl
*rxcp
,
765 struct be_queue_info
*rxq
= &adapter
->rx_obj
.q
;
766 struct be_rx_page_info
*page_info
;
768 u32 pktsize
, hdr_len
, curr_frag_len
, size
;
771 rxq_idx
= AMAP_GET_BITS(struct amap_eth_rx_compl
, fragndx
, rxcp
);
772 pktsize
= AMAP_GET_BITS(struct amap_eth_rx_compl
, pktsize
, rxcp
);
774 page_info
= get_rx_page_info(adapter
, rxq_idx
);
776 start
= page_address(page_info
->page
) + page_info
->page_offset
;
779 /* Copy data in the first descriptor of this completion */
780 curr_frag_len
= min(pktsize
, rx_frag_size
);
782 /* Copy the header portion into skb_data */
783 hdr_len
= min((u32
)BE_HDR_LEN
, curr_frag_len
);
784 memcpy(skb
->data
, start
, hdr_len
);
785 skb
->len
= curr_frag_len
;
786 if (curr_frag_len
<= BE_HDR_LEN
) { /* tiny packet */
787 /* Complete packet has now been moved to data */
788 put_page(page_info
->page
);
790 skb
->tail
+= curr_frag_len
;
792 skb_shinfo(skb
)->nr_frags
= 1;
793 skb_shinfo(skb
)->frags
[0].page
= page_info
->page
;
794 skb_shinfo(skb
)->frags
[0].page_offset
=
795 page_info
->page_offset
+ hdr_len
;
796 skb_shinfo(skb
)->frags
[0].size
= curr_frag_len
- hdr_len
;
797 skb
->data_len
= curr_frag_len
- hdr_len
;
798 skb
->tail
+= hdr_len
;
800 page_info
->page
= NULL
;
802 if (pktsize
<= rx_frag_size
) {
803 BUG_ON(num_rcvd
!= 1);
807 /* More frags present for this completion */
809 for (i
= 1, j
= 0; i
< num_rcvd
; i
++) {
810 size
-= curr_frag_len
;
811 index_inc(&rxq_idx
, rxq
->len
);
812 page_info
= get_rx_page_info(adapter
, rxq_idx
);
814 curr_frag_len
= min(size
, rx_frag_size
);
816 /* Coalesce all frags from the same physical page in one slot */
817 if (page_info
->page_offset
== 0) {
820 skb_shinfo(skb
)->frags
[j
].page
= page_info
->page
;
821 skb_shinfo(skb
)->frags
[j
].page_offset
=
822 page_info
->page_offset
;
823 skb_shinfo(skb
)->frags
[j
].size
= 0;
824 skb_shinfo(skb
)->nr_frags
++;
826 put_page(page_info
->page
);
829 skb_shinfo(skb
)->frags
[j
].size
+= curr_frag_len
;
830 skb
->len
+= curr_frag_len
;
831 skb
->data_len
+= curr_frag_len
;
833 page_info
->page
= NULL
;
835 BUG_ON(j
> MAX_SKB_FRAGS
);
838 be_rx_stats_update(adapter
, pktsize
, num_rcvd
);
841 /* Process the RX completion indicated by rxcp when GRO is disabled */
842 static void be_rx_compl_process(struct be_adapter
*adapter
,
843 struct be_eth_rx_compl
*rxcp
)
850 num_rcvd
= AMAP_GET_BITS(struct amap_eth_rx_compl
, numfrags
, rxcp
);
851 /* Is it a flush compl that has no data */
852 if (unlikely(num_rcvd
== 0))
855 skb
= netdev_alloc_skb_ip_align(adapter
->netdev
, BE_HDR_LEN
);
856 if (unlikely(!skb
)) {
858 dev_warn(&adapter
->pdev
->dev
, "skb alloc failed\n");
859 be_rx_compl_discard(adapter
, rxcp
);
863 skb_fill_rx_data(adapter
, skb
, rxcp
, num_rcvd
);
865 if (do_pkt_csum(rxcp
, adapter
->rx_csum
))
866 skb
->ip_summed
= CHECKSUM_NONE
;
868 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
870 skb
->truesize
= skb
->len
+ sizeof(struct sk_buff
);
871 skb
->protocol
= eth_type_trans(skb
, adapter
->netdev
);
873 vlanf
= AMAP_GET_BITS(struct amap_eth_rx_compl
, vtp
, rxcp
);
874 vtm
= AMAP_GET_BITS(struct amap_eth_rx_compl
, vtm
, rxcp
);
876 /* vlanf could be wrongly set in some cards.
877 * ignore if vtm is not set */
878 if ((adapter
->cap
& 0x400) && !vtm
)
881 if (unlikely(vlanf
)) {
882 if (!adapter
->vlan_grp
|| adapter
->vlans_added
== 0) {
886 vid
= AMAP_GET_BITS(struct amap_eth_rx_compl
, vlan_tag
, rxcp
);
888 vlan_hwaccel_receive_skb(skb
, adapter
->vlan_grp
, vid
);
890 netif_receive_skb(skb
);
894 /* Process the RX completion indicated by rxcp when GRO is enabled */
895 static void be_rx_compl_process_gro(struct be_adapter
*adapter
,
896 struct be_eth_rx_compl
*rxcp
)
898 struct be_rx_page_info
*page_info
;
899 struct sk_buff
*skb
= NULL
;
900 struct be_queue_info
*rxq
= &adapter
->rx_obj
.q
;
901 struct be_eq_obj
*eq_obj
= &adapter
->rx_eq
;
902 u32 num_rcvd
, pkt_size
, remaining
, vlanf
, curr_frag_len
;
903 u16 i
, rxq_idx
= 0, vid
, j
;
906 num_rcvd
= AMAP_GET_BITS(struct amap_eth_rx_compl
, numfrags
, rxcp
);
907 /* Is it a flush compl that has no data */
908 if (unlikely(num_rcvd
== 0))
911 pkt_size
= AMAP_GET_BITS(struct amap_eth_rx_compl
, pktsize
, rxcp
);
912 vlanf
= AMAP_GET_BITS(struct amap_eth_rx_compl
, vtp
, rxcp
);
913 rxq_idx
= AMAP_GET_BITS(struct amap_eth_rx_compl
, fragndx
, rxcp
);
914 vtm
= AMAP_GET_BITS(struct amap_eth_rx_compl
, vtm
, rxcp
);
916 /* vlanf could be wrongly set in some cards.
917 * ignore if vtm is not set */
918 if ((adapter
->cap
& 0x400) && !vtm
)
921 skb
= napi_get_frags(&eq_obj
->napi
);
923 be_rx_compl_discard(adapter
, rxcp
);
927 remaining
= pkt_size
;
928 for (i
= 0, j
= -1; i
< num_rcvd
; i
++) {
929 page_info
= get_rx_page_info(adapter
, rxq_idx
);
931 curr_frag_len
= min(remaining
, rx_frag_size
);
933 /* Coalesce all frags from the same physical page in one slot */
934 if (i
== 0 || page_info
->page_offset
== 0) {
935 /* First frag or Fresh page */
937 skb_shinfo(skb
)->frags
[j
].page
= page_info
->page
;
938 skb_shinfo(skb
)->frags
[j
].page_offset
=
939 page_info
->page_offset
;
940 skb_shinfo(skb
)->frags
[j
].size
= 0;
942 put_page(page_info
->page
);
944 skb_shinfo(skb
)->frags
[j
].size
+= curr_frag_len
;
946 remaining
-= curr_frag_len
;
947 index_inc(&rxq_idx
, rxq
->len
);
948 memset(page_info
, 0, sizeof(*page_info
));
950 BUG_ON(j
> MAX_SKB_FRAGS
);
952 skb_shinfo(skb
)->nr_frags
= j
+ 1;
954 skb
->data_len
= pkt_size
;
955 skb
->truesize
+= pkt_size
;
956 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
958 if (likely(!vlanf
)) {
959 napi_gro_frags(&eq_obj
->napi
);
961 vid
= AMAP_GET_BITS(struct amap_eth_rx_compl
, vlan_tag
, rxcp
);
964 if (!adapter
->vlan_grp
|| adapter
->vlans_added
== 0)
967 vlan_gro_frags(&eq_obj
->napi
, adapter
->vlan_grp
, vid
);
970 be_rx_stats_update(adapter
, pkt_size
, num_rcvd
);
973 static struct be_eth_rx_compl
*be_rx_compl_get(struct be_adapter
*adapter
)
975 struct be_eth_rx_compl
*rxcp
= queue_tail_node(&adapter
->rx_obj
.cq
);
977 if (rxcp
->dw
[offsetof(struct amap_eth_rx_compl
, valid
) / 32] == 0)
981 be_dws_le_to_cpu(rxcp
, sizeof(*rxcp
));
983 queue_tail_inc(&adapter
->rx_obj
.cq
);
987 /* To reset the valid bit, we need to reset the whole word as
988 * when walking the queue the valid entries are little-endian
989 * and invalid entries are host endian
991 static inline void be_rx_compl_reset(struct be_eth_rx_compl
*rxcp
)
993 rxcp
->dw
[offsetof(struct amap_eth_rx_compl
, valid
) / 32] = 0;
996 static inline struct page
*be_alloc_pages(u32 size
)
998 gfp_t alloc_flags
= GFP_ATOMIC
;
999 u32 order
= get_order(size
);
1001 alloc_flags
|= __GFP_COMP
;
1002 return alloc_pages(alloc_flags
, order
);
1006 * Allocate a page, split it to fragments of size rx_frag_size and post as
1007 * receive buffers to BE
1009 static void be_post_rx_frags(struct be_adapter
*adapter
)
1011 struct be_rx_page_info
*page_info_tbl
= adapter
->rx_obj
.page_info_tbl
;
1012 struct be_rx_page_info
*page_info
= NULL
, *prev_page_info
= NULL
;
1013 struct be_queue_info
*rxq
= &adapter
->rx_obj
.q
;
1014 struct page
*pagep
= NULL
;
1015 struct be_eth_rx_d
*rxd
;
1016 u64 page_dmaaddr
= 0, frag_dmaaddr
;
1017 u32 posted
, page_offset
= 0;
1019 page_info
= &page_info_tbl
[rxq
->head
];
1020 for (posted
= 0; posted
< MAX_RX_POST
&& !page_info
->page
; posted
++) {
1022 pagep
= be_alloc_pages(adapter
->big_page_size
);
1023 if (unlikely(!pagep
)) {
1024 drvr_stats(adapter
)->be_ethrx_post_fail
++;
1027 page_dmaaddr
= pci_map_page(adapter
->pdev
, pagep
, 0,
1028 adapter
->big_page_size
,
1029 PCI_DMA_FROMDEVICE
);
1030 page_info
->page_offset
= 0;
1033 page_info
->page_offset
= page_offset
+ rx_frag_size
;
1035 page_offset
= page_info
->page_offset
;
1036 page_info
->page
= pagep
;
1037 dma_unmap_addr_set(page_info
, bus
, page_dmaaddr
);
1038 frag_dmaaddr
= page_dmaaddr
+ page_info
->page_offset
;
1040 rxd
= queue_head_node(rxq
);
1041 rxd
->fragpa_lo
= cpu_to_le32(frag_dmaaddr
& 0xFFFFFFFF);
1042 rxd
->fragpa_hi
= cpu_to_le32(upper_32_bits(frag_dmaaddr
));
1044 /* Any space left in the current big page for another frag? */
1045 if ((page_offset
+ rx_frag_size
+ rx_frag_size
) >
1046 adapter
->big_page_size
) {
1048 page_info
->last_page_user
= true;
1051 prev_page_info
= page_info
;
1052 queue_head_inc(rxq
);
1053 page_info
= &page_info_tbl
[rxq
->head
];
1056 prev_page_info
->last_page_user
= true;
1059 atomic_add(posted
, &rxq
->used
);
1060 be_rxq_notify(adapter
, rxq
->id
, posted
);
1061 } else if (atomic_read(&rxq
->used
) == 0) {
1062 /* Let be_worker replenish when memory is available */
1063 adapter
->rx_post_starved
= true;
1067 static struct be_eth_tx_compl
*be_tx_compl_get(struct be_queue_info
*tx_cq
)
1069 struct be_eth_tx_compl
*txcp
= queue_tail_node(tx_cq
);
1071 if (txcp
->dw
[offsetof(struct amap_eth_tx_compl
, valid
) / 32] == 0)
1075 be_dws_le_to_cpu(txcp
, sizeof(*txcp
));
1077 txcp
->dw
[offsetof(struct amap_eth_tx_compl
, valid
) / 32] = 0;
1079 queue_tail_inc(tx_cq
);
1083 static void be_tx_compl_process(struct be_adapter
*adapter
, u16 last_index
)
1085 struct be_queue_info
*txq
= &adapter
->tx_obj
.q
;
1086 struct be_eth_wrb
*wrb
;
1087 struct sk_buff
**sent_skbs
= adapter
->tx_obj
.sent_skb_list
;
1088 struct sk_buff
*sent_skb
;
1089 u16 cur_index
, num_wrbs
= 1; /* account for hdr wrb */
1090 bool unmap_skb_hdr
= true;
1092 sent_skb
= sent_skbs
[txq
->tail
];
1094 sent_skbs
[txq
->tail
] = NULL
;
1096 /* skip header wrb */
1097 queue_tail_inc(txq
);
1100 cur_index
= txq
->tail
;
1101 wrb
= queue_tail_node(txq
);
1102 unmap_tx_frag(adapter
->pdev
, wrb
, (unmap_skb_hdr
&&
1103 skb_headlen(sent_skb
)));
1104 unmap_skb_hdr
= false;
1107 queue_tail_inc(txq
);
1108 } while (cur_index
!= last_index
);
1110 atomic_sub(num_wrbs
, &txq
->used
);
1112 kfree_skb(sent_skb
);
1115 static inline struct be_eq_entry
*event_get(struct be_eq_obj
*eq_obj
)
1117 struct be_eq_entry
*eqe
= queue_tail_node(&eq_obj
->q
);
1123 eqe
->evt
= le32_to_cpu(eqe
->evt
);
1124 queue_tail_inc(&eq_obj
->q
);
1128 static int event_handle(struct be_adapter
*adapter
,
1129 struct be_eq_obj
*eq_obj
)
1131 struct be_eq_entry
*eqe
;
1134 while ((eqe
= event_get(eq_obj
)) != NULL
) {
1139 /* Deal with any spurious interrupts that come
1142 be_eq_notify(adapter
, eq_obj
->q
.id
, true, true, num
);
1144 napi_schedule(&eq_obj
->napi
);
1149 /* Just read and notify events without processing them.
1150 * Used at the time of destroying event queues */
1151 static void be_eq_clean(struct be_adapter
*adapter
,
1152 struct be_eq_obj
*eq_obj
)
1154 struct be_eq_entry
*eqe
;
1157 while ((eqe
= event_get(eq_obj
)) != NULL
) {
1163 be_eq_notify(adapter
, eq_obj
->q
.id
, false, true, num
);
1166 static void be_rx_q_clean(struct be_adapter
*adapter
)
1168 struct be_rx_page_info
*page_info
;
1169 struct be_queue_info
*rxq
= &adapter
->rx_obj
.q
;
1170 struct be_queue_info
*rx_cq
= &adapter
->rx_obj
.cq
;
1171 struct be_eth_rx_compl
*rxcp
;
1174 /* First cleanup pending rx completions */
1175 while ((rxcp
= be_rx_compl_get(adapter
)) != NULL
) {
1176 be_rx_compl_discard(adapter
, rxcp
);
1177 be_rx_compl_reset(rxcp
);
1178 be_cq_notify(adapter
, rx_cq
->id
, true, 1);
1181 /* Then free posted rx buffer that were not used */
1182 tail
= (rxq
->head
+ rxq
->len
- atomic_read(&rxq
->used
)) % rxq
->len
;
1183 for (; atomic_read(&rxq
->used
) > 0; index_inc(&tail
, rxq
->len
)) {
1184 page_info
= get_rx_page_info(adapter
, tail
);
1185 put_page(page_info
->page
);
1186 memset(page_info
, 0, sizeof(*page_info
));
1188 BUG_ON(atomic_read(&rxq
->used
));
1191 static void be_tx_compl_clean(struct be_adapter
*adapter
)
1193 struct be_queue_info
*tx_cq
= &adapter
->tx_obj
.cq
;
1194 struct be_queue_info
*txq
= &adapter
->tx_obj
.q
;
1195 struct be_eth_tx_compl
*txcp
;
1196 u16 end_idx
, cmpl
= 0, timeo
= 0;
1197 struct sk_buff
**sent_skbs
= adapter
->tx_obj
.sent_skb_list
;
1198 struct sk_buff
*sent_skb
;
1201 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1203 while ((txcp
= be_tx_compl_get(tx_cq
))) {
1204 end_idx
= AMAP_GET_BITS(struct amap_eth_tx_compl
,
1206 be_tx_compl_process(adapter
, end_idx
);
1210 be_cq_notify(adapter
, tx_cq
->id
, false, cmpl
);
1214 if (atomic_read(&txq
->used
) == 0 || ++timeo
> 200)
1220 if (atomic_read(&txq
->used
))
1221 dev_err(&adapter
->pdev
->dev
, "%d pending tx-completions\n",
1222 atomic_read(&txq
->used
));
1224 /* free posted tx for which compls will never arrive */
1225 while (atomic_read(&txq
->used
)) {
1226 sent_skb
= sent_skbs
[txq
->tail
];
1227 end_idx
= txq
->tail
;
1229 wrb_cnt_for_skb(sent_skb
, &dummy_wrb
) - 1, txq
->len
);
1230 be_tx_compl_process(adapter
, end_idx
);
1234 static void be_mcc_queues_destroy(struct be_adapter
*adapter
)
1236 struct be_queue_info
*q
;
1238 q
= &adapter
->mcc_obj
.q
;
1240 be_cmd_q_destroy(adapter
, q
, QTYPE_MCCQ
);
1241 be_queue_free(adapter
, q
);
1243 q
= &adapter
->mcc_obj
.cq
;
1245 be_cmd_q_destroy(adapter
, q
, QTYPE_CQ
);
1246 be_queue_free(adapter
, q
);
1249 /* Must be called only after TX qs are created as MCC shares TX EQ */
1250 static int be_mcc_queues_create(struct be_adapter
*adapter
)
1252 struct be_queue_info
*q
, *cq
;
1254 /* Alloc MCC compl queue */
1255 cq
= &adapter
->mcc_obj
.cq
;
1256 if (be_queue_alloc(adapter
, cq
, MCC_CQ_LEN
,
1257 sizeof(struct be_mcc_compl
)))
1260 /* Ask BE to create MCC compl queue; share TX's eq */
1261 if (be_cmd_cq_create(adapter
, cq
, &adapter
->tx_eq
.q
, false, true, 0))
1264 /* Alloc MCC queue */
1265 q
= &adapter
->mcc_obj
.q
;
1266 if (be_queue_alloc(adapter
, q
, MCC_Q_LEN
, sizeof(struct be_mcc_wrb
)))
1267 goto mcc_cq_destroy
;
1269 /* Ask BE to create MCC queue */
1270 if (be_cmd_mccq_create(adapter
, q
, cq
))
1276 be_queue_free(adapter
, q
);
1278 be_cmd_q_destroy(adapter
, cq
, QTYPE_CQ
);
1280 be_queue_free(adapter
, cq
);
1285 static void be_tx_queues_destroy(struct be_adapter
*adapter
)
1287 struct be_queue_info
*q
;
1289 q
= &adapter
->tx_obj
.q
;
1291 be_cmd_q_destroy(adapter
, q
, QTYPE_TXQ
);
1292 be_queue_free(adapter
, q
);
1294 q
= &adapter
->tx_obj
.cq
;
1296 be_cmd_q_destroy(adapter
, q
, QTYPE_CQ
);
1297 be_queue_free(adapter
, q
);
1299 /* Clear any residual events */
1300 be_eq_clean(adapter
, &adapter
->tx_eq
);
1302 q
= &adapter
->tx_eq
.q
;
1304 be_cmd_q_destroy(adapter
, q
, QTYPE_EQ
);
1305 be_queue_free(adapter
, q
);
1308 static int be_tx_queues_create(struct be_adapter
*adapter
)
1310 struct be_queue_info
*eq
, *q
, *cq
;
1312 adapter
->tx_eq
.max_eqd
= 0;
1313 adapter
->tx_eq
.min_eqd
= 0;
1314 adapter
->tx_eq
.cur_eqd
= 96;
1315 adapter
->tx_eq
.enable_aic
= false;
1316 /* Alloc Tx Event queue */
1317 eq
= &adapter
->tx_eq
.q
;
1318 if (be_queue_alloc(adapter
, eq
, EVNT_Q_LEN
, sizeof(struct be_eq_entry
)))
1321 /* Ask BE to create Tx Event queue */
1322 if (be_cmd_eq_create(adapter
, eq
, adapter
->tx_eq
.cur_eqd
))
1324 adapter
->base_eq_id
= adapter
->tx_eq
.q
.id
;
1326 /* Alloc TX eth compl queue */
1327 cq
= &adapter
->tx_obj
.cq
;
1328 if (be_queue_alloc(adapter
, cq
, TX_CQ_LEN
,
1329 sizeof(struct be_eth_tx_compl
)))
1332 /* Ask BE to create Tx eth compl queue */
1333 if (be_cmd_cq_create(adapter
, cq
, eq
, false, false, 3))
1336 /* Alloc TX eth queue */
1337 q
= &adapter
->tx_obj
.q
;
1338 if (be_queue_alloc(adapter
, q
, TX_Q_LEN
, sizeof(struct be_eth_wrb
)))
1341 /* Ask BE to create Tx eth queue */
1342 if (be_cmd_txq_create(adapter
, q
, cq
))
1347 be_queue_free(adapter
, q
);
1349 be_cmd_q_destroy(adapter
, cq
, QTYPE_CQ
);
1351 be_queue_free(adapter
, cq
);
1353 be_cmd_q_destroy(adapter
, eq
, QTYPE_EQ
);
1355 be_queue_free(adapter
, eq
);
1359 static void be_rx_queues_destroy(struct be_adapter
*adapter
)
1361 struct be_queue_info
*q
;
1363 q
= &adapter
->rx_obj
.q
;
1365 be_cmd_q_destroy(adapter
, q
, QTYPE_RXQ
);
1367 /* After the rxq is invalidated, wait for a grace time
1368 * of 1ms for all dma to end and the flush compl to arrive
1371 be_rx_q_clean(adapter
);
1373 be_queue_free(adapter
, q
);
1375 q
= &adapter
->rx_obj
.cq
;
1377 be_cmd_q_destroy(adapter
, q
, QTYPE_CQ
);
1378 be_queue_free(adapter
, q
);
1380 /* Clear any residual events */
1381 be_eq_clean(adapter
, &adapter
->rx_eq
);
1383 q
= &adapter
->rx_eq
.q
;
1385 be_cmd_q_destroy(adapter
, q
, QTYPE_EQ
);
1386 be_queue_free(adapter
, q
);
1389 static int be_rx_queues_create(struct be_adapter
*adapter
)
1391 struct be_queue_info
*eq
, *q
, *cq
;
1394 adapter
->big_page_size
= (1 << get_order(rx_frag_size
)) * PAGE_SIZE
;
1395 adapter
->rx_eq
.max_eqd
= BE_MAX_EQD
;
1396 adapter
->rx_eq
.min_eqd
= 0;
1397 adapter
->rx_eq
.cur_eqd
= 0;
1398 adapter
->rx_eq
.enable_aic
= true;
1400 /* Alloc Rx Event queue */
1401 eq
= &adapter
->rx_eq
.q
;
1402 rc
= be_queue_alloc(adapter
, eq
, EVNT_Q_LEN
,
1403 sizeof(struct be_eq_entry
));
1407 /* Ask BE to create Rx Event queue */
1408 rc
= be_cmd_eq_create(adapter
, eq
, adapter
->rx_eq
.cur_eqd
);
1412 /* Alloc RX eth compl queue */
1413 cq
= &adapter
->rx_obj
.cq
;
1414 rc
= be_queue_alloc(adapter
, cq
, RX_CQ_LEN
,
1415 sizeof(struct be_eth_rx_compl
));
1419 /* Ask BE to create Rx eth compl queue */
1420 rc
= be_cmd_cq_create(adapter
, cq
, eq
, false, false, 3);
1424 /* Alloc RX eth queue */
1425 q
= &adapter
->rx_obj
.q
;
1426 rc
= be_queue_alloc(adapter
, q
, RX_Q_LEN
, sizeof(struct be_eth_rx_d
));
1430 /* Ask BE to create Rx eth queue */
1431 rc
= be_cmd_rxq_create(adapter
, q
, cq
->id
, rx_frag_size
,
1432 BE_MAX_JUMBO_FRAME_SIZE
, adapter
->if_handle
, false);
1438 be_queue_free(adapter
, q
);
1440 be_cmd_q_destroy(adapter
, cq
, QTYPE_CQ
);
1442 be_queue_free(adapter
, cq
);
1444 be_cmd_q_destroy(adapter
, eq
, QTYPE_EQ
);
1446 be_queue_free(adapter
, eq
);
1450 /* There are 8 evt ids per func. Retruns the evt id's bit number */
1451 static inline int be_evt_bit_get(struct be_adapter
*adapter
, u32 eq_id
)
1453 return eq_id
- adapter
->base_eq_id
;
1456 static irqreturn_t
be_intx(int irq
, void *dev
)
1458 struct be_adapter
*adapter
= dev
;
1461 isr
= ioread32(adapter
->csr
+ CEV_ISR0_OFFSET
+
1462 (adapter
->tx_eq
.q
.id
/ 8) * CEV_ISR_SIZE
);
1466 event_handle(adapter
, &adapter
->tx_eq
);
1467 event_handle(adapter
, &adapter
->rx_eq
);
1472 static irqreturn_t
be_msix_rx(int irq
, void *dev
)
1474 struct be_adapter
*adapter
= dev
;
1476 event_handle(adapter
, &adapter
->rx_eq
);
1481 static irqreturn_t
be_msix_tx_mcc(int irq
, void *dev
)
1483 struct be_adapter
*adapter
= dev
;
1485 event_handle(adapter
, &adapter
->tx_eq
);
1490 static inline bool do_gro(struct be_adapter
*adapter
,
1491 struct be_eth_rx_compl
*rxcp
)
1493 int err
= AMAP_GET_BITS(struct amap_eth_rx_compl
, err
, rxcp
);
1494 int tcp_frame
= AMAP_GET_BITS(struct amap_eth_rx_compl
, tcpf
, rxcp
);
1497 drvr_stats(adapter
)->be_rxcp_err
++;
1499 return (tcp_frame
&& !err
) ? true : false;
1502 int be_poll_rx(struct napi_struct
*napi
, int budget
)
1504 struct be_eq_obj
*rx_eq
= container_of(napi
, struct be_eq_obj
, napi
);
1505 struct be_adapter
*adapter
=
1506 container_of(rx_eq
, struct be_adapter
, rx_eq
);
1507 struct be_queue_info
*rx_cq
= &adapter
->rx_obj
.cq
;
1508 struct be_eth_rx_compl
*rxcp
;
1511 adapter
->stats
.drvr_stats
.be_rx_polls
++;
1512 for (work_done
= 0; work_done
< budget
; work_done
++) {
1513 rxcp
= be_rx_compl_get(adapter
);
1517 if (do_gro(adapter
, rxcp
))
1518 be_rx_compl_process_gro(adapter
, rxcp
);
1520 be_rx_compl_process(adapter
, rxcp
);
1522 be_rx_compl_reset(rxcp
);
1525 /* Refill the queue */
1526 if (atomic_read(&adapter
->rx_obj
.q
.used
) < RX_FRAGS_REFILL_WM
)
1527 be_post_rx_frags(adapter
);
1530 if (work_done
< budget
) {
1531 napi_complete(napi
);
1532 be_cq_notify(adapter
, rx_cq
->id
, true, work_done
);
1534 /* More to be consumed; continue with interrupts disabled */
1535 be_cq_notify(adapter
, rx_cq
->id
, false, work_done
);
1540 /* As TX and MCC share the same EQ check for both TX and MCC completions.
1541 * For TX/MCC we don't honour budget; consume everything
1543 static int be_poll_tx_mcc(struct napi_struct
*napi
, int budget
)
1545 struct be_eq_obj
*tx_eq
= container_of(napi
, struct be_eq_obj
, napi
);
1546 struct be_adapter
*adapter
=
1547 container_of(tx_eq
, struct be_adapter
, tx_eq
);
1548 struct be_queue_info
*txq
= &adapter
->tx_obj
.q
;
1549 struct be_queue_info
*tx_cq
= &adapter
->tx_obj
.cq
;
1550 struct be_eth_tx_compl
*txcp
;
1551 int tx_compl
= 0, mcc_compl
, status
= 0;
1554 while ((txcp
= be_tx_compl_get(tx_cq
))) {
1555 end_idx
= AMAP_GET_BITS(struct amap_eth_tx_compl
,
1557 be_tx_compl_process(adapter
, end_idx
);
1561 mcc_compl
= be_process_mcc(adapter
, &status
);
1563 napi_complete(napi
);
1566 struct be_mcc_obj
*mcc_obj
= &adapter
->mcc_obj
;
1567 be_cq_notify(adapter
, mcc_obj
->cq
.id
, true, mcc_compl
);
1571 be_cq_notify(adapter
, adapter
->tx_obj
.cq
.id
, true, tx_compl
);
1573 /* As Tx wrbs have been freed up, wake up netdev queue if
1574 * it was stopped due to lack of tx wrbs.
1576 if (netif_queue_stopped(adapter
->netdev
) &&
1577 atomic_read(&txq
->used
) < txq
->len
/ 2) {
1578 netif_wake_queue(adapter
->netdev
);
1581 drvr_stats(adapter
)->be_tx_events
++;
1582 drvr_stats(adapter
)->be_tx_compl
+= tx_compl
;
1588 static void be_worker(struct work_struct
*work
)
1590 struct be_adapter
*adapter
=
1591 container_of(work
, struct be_adapter
, work
.work
);
1593 be_cmd_get_stats(adapter
, &adapter
->stats
.cmd
);
1596 be_rx_eqd_update(adapter
);
1598 be_tx_rate_update(adapter
);
1599 be_rx_rate_update(adapter
);
1601 if (adapter
->rx_post_starved
) {
1602 adapter
->rx_post_starved
= false;
1603 be_post_rx_frags(adapter
);
1606 schedule_delayed_work(&adapter
->work
, msecs_to_jiffies(1000));
1609 static void be_msix_disable(struct be_adapter
*adapter
)
1611 if (adapter
->msix_enabled
) {
1612 pci_disable_msix(adapter
->pdev
);
1613 adapter
->msix_enabled
= false;
1617 static void be_msix_enable(struct be_adapter
*adapter
)
1621 for (i
= 0; i
< BE_NUM_MSIX_VECTORS
; i
++)
1622 adapter
->msix_entries
[i
].entry
= i
;
1624 status
= pci_enable_msix(adapter
->pdev
, adapter
->msix_entries
,
1625 BE_NUM_MSIX_VECTORS
);
1627 adapter
->msix_enabled
= true;
1630 static void be_sriov_enable(struct be_adapter
*adapter
)
1632 #ifdef CONFIG_PCI_IOV
1634 be_check_sriov_fn_type(adapter
);
1635 if (be_physfn(adapter
) && num_vfs
) {
1636 status
= pci_enable_sriov(adapter
->pdev
, num_vfs
);
1637 adapter
->sriov_enabled
= status
? false : true;
1642 static void be_sriov_disable(struct be_adapter
*adapter
)
1644 #ifdef CONFIG_PCI_IOV
1645 if (adapter
->sriov_enabled
) {
1646 pci_disable_sriov(adapter
->pdev
);
1647 adapter
->sriov_enabled
= false;
1652 static inline int be_msix_vec_get(struct be_adapter
*adapter
, u32 eq_id
)
1654 return adapter
->msix_entries
[
1655 be_evt_bit_get(adapter
, eq_id
)].vector
;
1658 static int be_request_irq(struct be_adapter
*adapter
,
1659 struct be_eq_obj
*eq_obj
,
1660 void *handler
, char *desc
)
1662 struct net_device
*netdev
= adapter
->netdev
;
1665 sprintf(eq_obj
->desc
, "%s-%s", netdev
->name
, desc
);
1666 vec
= be_msix_vec_get(adapter
, eq_obj
->q
.id
);
1667 return request_irq(vec
, handler
, 0, eq_obj
->desc
, adapter
);
1670 static void be_free_irq(struct be_adapter
*adapter
, struct be_eq_obj
*eq_obj
)
1672 int vec
= be_msix_vec_get(adapter
, eq_obj
->q
.id
);
1673 free_irq(vec
, adapter
);
1676 static int be_msix_register(struct be_adapter
*adapter
)
1680 status
= be_request_irq(adapter
, &adapter
->tx_eq
, be_msix_tx_mcc
, "tx");
1684 status
= be_request_irq(adapter
, &adapter
->rx_eq
, be_msix_rx
, "rx");
1691 be_free_irq(adapter
, &adapter
->tx_eq
);
1693 dev_warn(&adapter
->pdev
->dev
,
1694 "MSIX Request IRQ failed - err %d\n", status
);
1695 pci_disable_msix(adapter
->pdev
);
1696 adapter
->msix_enabled
= false;
1700 static int be_irq_register(struct be_adapter
*adapter
)
1702 struct net_device
*netdev
= adapter
->netdev
;
1705 if (adapter
->msix_enabled
) {
1706 status
= be_msix_register(adapter
);
1709 /* INTx is not supported for VF */
1710 if (!be_physfn(adapter
))
1715 netdev
->irq
= adapter
->pdev
->irq
;
1716 status
= request_irq(netdev
->irq
, be_intx
, IRQF_SHARED
, netdev
->name
,
1719 dev_err(&adapter
->pdev
->dev
,
1720 "INTx request IRQ failed - err %d\n", status
);
1724 adapter
->isr_registered
= true;
1728 static void be_irq_unregister(struct be_adapter
*adapter
)
1730 struct net_device
*netdev
= adapter
->netdev
;
1732 if (!adapter
->isr_registered
)
1736 if (!adapter
->msix_enabled
) {
1737 free_irq(netdev
->irq
, adapter
);
1742 be_free_irq(adapter
, &adapter
->tx_eq
);
1743 be_free_irq(adapter
, &adapter
->rx_eq
);
1745 adapter
->isr_registered
= false;
1748 static int be_close(struct net_device
*netdev
)
1750 struct be_adapter
*adapter
= netdev_priv(netdev
);
1751 struct be_eq_obj
*rx_eq
= &adapter
->rx_eq
;
1752 struct be_eq_obj
*tx_eq
= &adapter
->tx_eq
;
1755 cancel_delayed_work_sync(&adapter
->work
);
1757 be_async_mcc_disable(adapter
);
1759 netif_stop_queue(netdev
);
1760 netif_carrier_off(netdev
);
1761 adapter
->link_up
= false;
1763 be_intr_set(adapter
, false);
1765 if (adapter
->msix_enabled
) {
1766 vec
= be_msix_vec_get(adapter
, tx_eq
->q
.id
);
1767 synchronize_irq(vec
);
1768 vec
= be_msix_vec_get(adapter
, rx_eq
->q
.id
);
1769 synchronize_irq(vec
);
1771 synchronize_irq(netdev
->irq
);
1773 be_irq_unregister(adapter
);
1775 napi_disable(&rx_eq
->napi
);
1776 napi_disable(&tx_eq
->napi
);
1778 /* Wait for all pending tx completions to arrive so that
1779 * all tx skbs are freed.
1781 be_tx_compl_clean(adapter
);
1786 static int be_open(struct net_device
*netdev
)
1788 struct be_adapter
*adapter
= netdev_priv(netdev
);
1789 struct be_eq_obj
*rx_eq
= &adapter
->rx_eq
;
1790 struct be_eq_obj
*tx_eq
= &adapter
->tx_eq
;
1796 /* First time posting */
1797 be_post_rx_frags(adapter
);
1799 napi_enable(&rx_eq
->napi
);
1800 napi_enable(&tx_eq
->napi
);
1802 be_irq_register(adapter
);
1804 be_intr_set(adapter
, true);
1806 /* The evt queues are created in unarmed state; arm them */
1807 be_eq_notify(adapter
, rx_eq
->q
.id
, true, false, 0);
1808 be_eq_notify(adapter
, tx_eq
->q
.id
, true, false, 0);
1810 /* Rx compl queue may be in unarmed state; rearm it */
1811 be_cq_notify(adapter
, adapter
->rx_obj
.cq
.id
, true, 0);
1813 /* Now that interrupts are on we can process async mcc */
1814 be_async_mcc_enable(adapter
);
1816 schedule_delayed_work(&adapter
->work
, msecs_to_jiffies(100));
1818 status
= be_cmd_link_status_query(adapter
, &link_up
, &mac_speed
,
1822 be_link_status_update(adapter
, link_up
);
1824 if (be_physfn(adapter
)) {
1825 status
= be_vid_config(adapter
);
1829 status
= be_cmd_set_flow_control(adapter
,
1830 adapter
->tx_fc
, adapter
->rx_fc
);
1837 be_close(adapter
->netdev
);
1841 static int be_setup_wol(struct be_adapter
*adapter
, bool enable
)
1843 struct be_dma_mem cmd
;
1847 memset(mac
, 0, ETH_ALEN
);
1849 cmd
.size
= sizeof(struct be_cmd_req_acpi_wol_magic_config
);
1850 cmd
.va
= pci_alloc_consistent(adapter
->pdev
, cmd
.size
, &cmd
.dma
);
1853 memset(cmd
.va
, 0, cmd
.size
);
1856 status
= pci_write_config_dword(adapter
->pdev
,
1857 PCICFG_PM_CONTROL_OFFSET
, PCICFG_PM_CONTROL_MASK
);
1859 dev_err(&adapter
->pdev
->dev
,
1860 "Could not enable Wake-on-lan\n");
1861 pci_free_consistent(adapter
->pdev
, cmd
.size
, cmd
.va
,
1865 status
= be_cmd_enable_magic_wol(adapter
,
1866 adapter
->netdev
->dev_addr
, &cmd
);
1867 pci_enable_wake(adapter
->pdev
, PCI_D3hot
, 1);
1868 pci_enable_wake(adapter
->pdev
, PCI_D3cold
, 1);
1870 status
= be_cmd_enable_magic_wol(adapter
, mac
, &cmd
);
1871 pci_enable_wake(adapter
->pdev
, PCI_D3hot
, 0);
1872 pci_enable_wake(adapter
->pdev
, PCI_D3cold
, 0);
1875 pci_free_consistent(adapter
->pdev
, cmd
.size
, cmd
.va
, cmd
.dma
);
1879 static int be_setup(struct be_adapter
*adapter
)
1881 struct net_device
*netdev
= adapter
->netdev
;
1882 u32 cap_flags
, en_flags
, vf
= 0;
1886 cap_flags
= en_flags
= BE_IF_FLAGS_UNTAGGED
| BE_IF_FLAGS_BROADCAST
;
1888 if (be_physfn(adapter
)) {
1889 cap_flags
|= BE_IF_FLAGS_MCAST_PROMISCUOUS
|
1890 BE_IF_FLAGS_PROMISCUOUS
|
1891 BE_IF_FLAGS_PASS_L3L4_ERRORS
;
1892 en_flags
|= BE_IF_FLAGS_PASS_L3L4_ERRORS
;
1895 status
= be_cmd_if_create(adapter
, cap_flags
, en_flags
,
1896 netdev
->dev_addr
, false/* pmac_invalid */,
1897 &adapter
->if_handle
, &adapter
->pmac_id
, 0);
1901 if (be_physfn(adapter
)) {
1902 while (vf
< num_vfs
) {
1903 cap_flags
= en_flags
= BE_IF_FLAGS_UNTAGGED
1904 | BE_IF_FLAGS_BROADCAST
;
1905 status
= be_cmd_if_create(adapter
, cap_flags
, en_flags
,
1906 mac
, true, &adapter
->vf_if_handle
[vf
],
1909 dev_err(&adapter
->pdev
->dev
,
1910 "Interface Create failed for VF %d\n", vf
);
1915 } else if (!be_physfn(adapter
)) {
1916 status
= be_cmd_mac_addr_query(adapter
, mac
,
1917 MAC_ADDRESS_TYPE_NETWORK
, false, adapter
->if_handle
);
1919 memcpy(adapter
->netdev
->dev_addr
, mac
, ETH_ALEN
);
1920 memcpy(adapter
->netdev
->perm_addr
, mac
, ETH_ALEN
);
1924 status
= be_tx_queues_create(adapter
);
1928 status
= be_rx_queues_create(adapter
);
1932 status
= be_mcc_queues_create(adapter
);
1936 adapter
->link_speed
= -1;
1941 be_rx_queues_destroy(adapter
);
1943 be_tx_queues_destroy(adapter
);
1945 for (vf
= 0; vf
< num_vfs
; vf
++)
1946 if (adapter
->vf_if_handle
[vf
])
1947 be_cmd_if_destroy(adapter
, adapter
->vf_if_handle
[vf
]);
1948 be_cmd_if_destroy(adapter
, adapter
->if_handle
);
1953 static int be_clear(struct be_adapter
*adapter
)
1955 be_mcc_queues_destroy(adapter
);
1956 be_rx_queues_destroy(adapter
);
1957 be_tx_queues_destroy(adapter
);
1959 be_cmd_if_destroy(adapter
, adapter
->if_handle
);
1961 /* tell fw we're done with firing cmds */
1962 be_cmd_fw_clean(adapter
);
1967 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
1968 char flash_cookie
[2][16] = {"*** SE FLAS",
1969 "H DIRECTORY *** "};
1971 static bool be_flash_redboot(struct be_adapter
*adapter
,
1972 const u8
*p
, u32 img_start
, int image_size
,
1979 crc_offset
= hdr_size
+ img_start
+ image_size
- 4;
1983 status
= be_cmd_get_flash_crc(adapter
, flashed_crc
,
1986 dev_err(&adapter
->pdev
->dev
,
1987 "could not get crc from flash, not flashing redboot\n");
1991 /*update redboot only if crc does not match*/
1992 if (!memcmp(flashed_crc
, p
, 4))
1998 static int be_flash_data(struct be_adapter
*adapter
,
1999 const struct firmware
*fw
,
2000 struct be_dma_mem
*flash_cmd
, int num_of_images
)
2003 int status
= 0, i
, filehdr_size
= 0;
2004 u32 total_bytes
= 0, flash_op
;
2006 const u8
*p
= fw
->data
;
2007 struct be_cmd_write_flashrom
*req
= flash_cmd
->va
;
2008 struct flash_comp
*pflashcomp
;
2011 struct flash_comp gen3_flash_types
[9] = {
2012 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3
, IMG_TYPE_ISCSI_ACTIVE
,
2013 FLASH_IMAGE_MAX_SIZE_g3
},
2014 { FLASH_REDBOOT_START_g3
, IMG_TYPE_REDBOOT
,
2015 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3
},
2016 { FLASH_iSCSI_BIOS_START_g3
, IMG_TYPE_BIOS
,
2017 FLASH_BIOS_IMAGE_MAX_SIZE_g3
},
2018 { FLASH_PXE_BIOS_START_g3
, IMG_TYPE_PXE_BIOS
,
2019 FLASH_BIOS_IMAGE_MAX_SIZE_g3
},
2020 { FLASH_FCoE_BIOS_START_g3
, IMG_TYPE_FCOE_BIOS
,
2021 FLASH_BIOS_IMAGE_MAX_SIZE_g3
},
2022 { FLASH_iSCSI_BACKUP_IMAGE_START_g3
, IMG_TYPE_ISCSI_BACKUP
,
2023 FLASH_IMAGE_MAX_SIZE_g3
},
2024 { FLASH_FCoE_PRIMARY_IMAGE_START_g3
, IMG_TYPE_FCOE_FW_ACTIVE
,
2025 FLASH_IMAGE_MAX_SIZE_g3
},
2026 { FLASH_FCoE_BACKUP_IMAGE_START_g3
, IMG_TYPE_FCOE_FW_BACKUP
,
2027 FLASH_IMAGE_MAX_SIZE_g3
},
2028 { FLASH_NCSI_START_g3
, IMG_TYPE_NCSI_FW
,
2029 FLASH_NCSI_IMAGE_MAX_SIZE_g3
}
2031 struct flash_comp gen2_flash_types
[8] = {
2032 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2
, IMG_TYPE_ISCSI_ACTIVE
,
2033 FLASH_IMAGE_MAX_SIZE_g2
},
2034 { FLASH_REDBOOT_START_g2
, IMG_TYPE_REDBOOT
,
2035 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2
},
2036 { FLASH_iSCSI_BIOS_START_g2
, IMG_TYPE_BIOS
,
2037 FLASH_BIOS_IMAGE_MAX_SIZE_g2
},
2038 { FLASH_PXE_BIOS_START_g2
, IMG_TYPE_PXE_BIOS
,
2039 FLASH_BIOS_IMAGE_MAX_SIZE_g2
},
2040 { FLASH_FCoE_BIOS_START_g2
, IMG_TYPE_FCOE_BIOS
,
2041 FLASH_BIOS_IMAGE_MAX_SIZE_g2
},
2042 { FLASH_iSCSI_BACKUP_IMAGE_START_g2
, IMG_TYPE_ISCSI_BACKUP
,
2043 FLASH_IMAGE_MAX_SIZE_g2
},
2044 { FLASH_FCoE_PRIMARY_IMAGE_START_g2
, IMG_TYPE_FCOE_FW_ACTIVE
,
2045 FLASH_IMAGE_MAX_SIZE_g2
},
2046 { FLASH_FCoE_BACKUP_IMAGE_START_g2
, IMG_TYPE_FCOE_FW_BACKUP
,
2047 FLASH_IMAGE_MAX_SIZE_g2
}
2050 if (adapter
->generation
== BE_GEN3
) {
2051 pflashcomp
= gen3_flash_types
;
2052 filehdr_size
= sizeof(struct flash_file_hdr_g3
);
2055 pflashcomp
= gen2_flash_types
;
2056 filehdr_size
= sizeof(struct flash_file_hdr_g2
);
2059 for (i
= 0; i
< num_comp
; i
++) {
2060 if ((pflashcomp
[i
].optype
== IMG_TYPE_NCSI_FW
) &&
2061 memcmp(adapter
->fw_ver
, "3.102.148.0", 11) < 0)
2063 if ((pflashcomp
[i
].optype
== IMG_TYPE_REDBOOT
) &&
2064 (!be_flash_redboot(adapter
, fw
->data
,
2065 pflashcomp
[i
].offset
, pflashcomp
[i
].size
,
2069 p
+= filehdr_size
+ pflashcomp
[i
].offset
2070 + (num_of_images
* sizeof(struct image_hdr
));
2071 if (p
+ pflashcomp
[i
].size
> fw
->data
+ fw
->size
)
2073 total_bytes
= pflashcomp
[i
].size
;
2074 while (total_bytes
) {
2075 if (total_bytes
> 32*1024)
2076 num_bytes
= 32*1024;
2078 num_bytes
= total_bytes
;
2079 total_bytes
-= num_bytes
;
2082 flash_op
= FLASHROM_OPER_FLASH
;
2084 flash_op
= FLASHROM_OPER_SAVE
;
2085 memcpy(req
->params
.data_buf
, p
, num_bytes
);
2087 status
= be_cmd_write_flashrom(adapter
, flash_cmd
,
2088 pflashcomp
[i
].optype
, flash_op
, num_bytes
);
2090 dev_err(&adapter
->pdev
->dev
,
2091 "cmd to write to flash rom failed.\n");
2100 static int get_ufigen_type(struct flash_file_hdr_g2
*fhdr
)
2104 if (fhdr
->build
[0] == '3')
2106 else if (fhdr
->build
[0] == '2')
2112 int be_load_fw(struct be_adapter
*adapter
, u8
*func
)
2114 char fw_file
[ETHTOOL_FLASH_MAX_FILENAME
];
2115 const struct firmware
*fw
;
2116 struct flash_file_hdr_g2
*fhdr
;
2117 struct flash_file_hdr_g3
*fhdr3
;
2118 struct image_hdr
*img_hdr_ptr
= NULL
;
2119 struct be_dma_mem flash_cmd
;
2120 int status
, i
= 0, num_imgs
= 0;
2123 strcpy(fw_file
, func
);
2125 status
= request_firmware(&fw
, fw_file
, &adapter
->pdev
->dev
);
2130 fhdr
= (struct flash_file_hdr_g2
*) p
;
2131 dev_info(&adapter
->pdev
->dev
, "Flashing firmware file %s\n", fw_file
);
2133 flash_cmd
.size
= sizeof(struct be_cmd_write_flashrom
) + 32*1024;
2134 flash_cmd
.va
= pci_alloc_consistent(adapter
->pdev
, flash_cmd
.size
,
2136 if (!flash_cmd
.va
) {
2138 dev_err(&adapter
->pdev
->dev
,
2139 "Memory allocation failure while flashing\n");
2143 if ((adapter
->generation
== BE_GEN3
) &&
2144 (get_ufigen_type(fhdr
) == BE_GEN3
)) {
2145 fhdr3
= (struct flash_file_hdr_g3
*) fw
->data
;
2146 num_imgs
= le32_to_cpu(fhdr3
->num_imgs
);
2147 for (i
= 0; i
< num_imgs
; i
++) {
2148 img_hdr_ptr
= (struct image_hdr
*) (fw
->data
+
2149 (sizeof(struct flash_file_hdr_g3
) +
2150 i
* sizeof(struct image_hdr
)));
2151 if (le32_to_cpu(img_hdr_ptr
->imageid
) == 1)
2152 status
= be_flash_data(adapter
, fw
, &flash_cmd
,
2155 } else if ((adapter
->generation
== BE_GEN2
) &&
2156 (get_ufigen_type(fhdr
) == BE_GEN2
)) {
2157 status
= be_flash_data(adapter
, fw
, &flash_cmd
, 0);
2159 dev_err(&adapter
->pdev
->dev
,
2160 "UFI and Interface are not compatible for flashing\n");
2164 pci_free_consistent(adapter
->pdev
, flash_cmd
.size
, flash_cmd
.va
,
2167 dev_err(&adapter
->pdev
->dev
, "Firmware load error\n");
2171 dev_info(&adapter
->pdev
->dev
, "Firmware flashed successfully\n");
2174 release_firmware(fw
);
2178 static struct net_device_ops be_netdev_ops
= {
2179 .ndo_open
= be_open
,
2180 .ndo_stop
= be_close
,
2181 .ndo_start_xmit
= be_xmit
,
2182 .ndo_get_stats
= be_get_stats
,
2183 .ndo_set_rx_mode
= be_set_multicast_list
,
2184 .ndo_set_mac_address
= be_mac_addr_set
,
2185 .ndo_change_mtu
= be_change_mtu
,
2186 .ndo_validate_addr
= eth_validate_addr
,
2187 .ndo_vlan_rx_register
= be_vlan_register
,
2188 .ndo_vlan_rx_add_vid
= be_vlan_add_vid
,
2189 .ndo_vlan_rx_kill_vid
= be_vlan_rem_vid
,
2190 .ndo_set_vf_mac
= be_set_vf_mac
2193 static void be_netdev_init(struct net_device
*netdev
)
2195 struct be_adapter
*adapter
= netdev_priv(netdev
);
2197 netdev
->features
|= NETIF_F_SG
| NETIF_F_HW_VLAN_RX
| NETIF_F_TSO
|
2198 NETIF_F_HW_VLAN_TX
| NETIF_F_HW_VLAN_FILTER
| NETIF_F_HW_CSUM
|
2199 NETIF_F_GRO
| NETIF_F_TSO6
;
2201 netdev
->vlan_features
|= NETIF_F_SG
| NETIF_F_TSO
| NETIF_F_HW_CSUM
;
2203 netdev
->flags
|= IFF_MULTICAST
;
2205 adapter
->rx_csum
= true;
2207 /* Default settings for Rx and Tx flow control */
2208 adapter
->rx_fc
= true;
2209 adapter
->tx_fc
= true;
2211 netif_set_gso_max_size(netdev
, 65535);
2213 BE_SET_NETDEV_OPS(netdev
, &be_netdev_ops
);
2215 SET_ETHTOOL_OPS(netdev
, &be_ethtool_ops
);
2217 netif_napi_add(netdev
, &adapter
->rx_eq
.napi
, be_poll_rx
,
2219 netif_napi_add(netdev
, &adapter
->tx_eq
.napi
, be_poll_tx_mcc
,
2222 netif_carrier_off(netdev
);
2223 netif_stop_queue(netdev
);
2226 static void be_unmap_pci_bars(struct be_adapter
*adapter
)
2229 iounmap(adapter
->csr
);
2231 iounmap(adapter
->db
);
2232 if (adapter
->pcicfg
&& be_physfn(adapter
))
2233 iounmap(adapter
->pcicfg
);
2236 static int be_map_pci_bars(struct be_adapter
*adapter
)
2239 int pcicfg_reg
, db_reg
;
2241 if (be_physfn(adapter
)) {
2242 addr
= ioremap_nocache(pci_resource_start(adapter
->pdev
, 2),
2243 pci_resource_len(adapter
->pdev
, 2));
2246 adapter
->csr
= addr
;
2249 if (adapter
->generation
== BE_GEN2
) {
2254 if (be_physfn(adapter
))
2259 addr
= ioremap_nocache(pci_resource_start(adapter
->pdev
, db_reg
),
2260 pci_resource_len(adapter
->pdev
, db_reg
));
2265 if (be_physfn(adapter
)) {
2266 addr
= ioremap_nocache(
2267 pci_resource_start(adapter
->pdev
, pcicfg_reg
),
2268 pci_resource_len(adapter
->pdev
, pcicfg_reg
));
2271 adapter
->pcicfg
= addr
;
2273 adapter
->pcicfg
= adapter
->db
+ SRIOV_VF_PCICFG_OFFSET
;
2277 be_unmap_pci_bars(adapter
);
2282 static void be_ctrl_cleanup(struct be_adapter
*adapter
)
2284 struct be_dma_mem
*mem
= &adapter
->mbox_mem_alloced
;
2286 be_unmap_pci_bars(adapter
);
2289 pci_free_consistent(adapter
->pdev
, mem
->size
,
2292 mem
= &adapter
->mc_cmd_mem
;
2294 pci_free_consistent(adapter
->pdev
, mem
->size
,
2298 static int be_ctrl_init(struct be_adapter
*adapter
)
2300 struct be_dma_mem
*mbox_mem_alloc
= &adapter
->mbox_mem_alloced
;
2301 struct be_dma_mem
*mbox_mem_align
= &adapter
->mbox_mem
;
2302 struct be_dma_mem
*mc_cmd_mem
= &adapter
->mc_cmd_mem
;
2305 status
= be_map_pci_bars(adapter
);
2309 mbox_mem_alloc
->size
= sizeof(struct be_mcc_mailbox
) + 16;
2310 mbox_mem_alloc
->va
= pci_alloc_consistent(adapter
->pdev
,
2311 mbox_mem_alloc
->size
, &mbox_mem_alloc
->dma
);
2312 if (!mbox_mem_alloc
->va
) {
2314 goto unmap_pci_bars
;
2317 mbox_mem_align
->size
= sizeof(struct be_mcc_mailbox
);
2318 mbox_mem_align
->va
= PTR_ALIGN(mbox_mem_alloc
->va
, 16);
2319 mbox_mem_align
->dma
= PTR_ALIGN(mbox_mem_alloc
->dma
, 16);
2320 memset(mbox_mem_align
->va
, 0, sizeof(struct be_mcc_mailbox
));
2322 mc_cmd_mem
->size
= sizeof(struct be_cmd_req_mcast_mac_config
);
2323 mc_cmd_mem
->va
= pci_alloc_consistent(adapter
->pdev
, mc_cmd_mem
->size
,
2325 if (mc_cmd_mem
->va
== NULL
) {
2329 memset(mc_cmd_mem
->va
, 0, mc_cmd_mem
->size
);
2331 spin_lock_init(&adapter
->mbox_lock
);
2332 spin_lock_init(&adapter
->mcc_lock
);
2333 spin_lock_init(&adapter
->mcc_cq_lock
);
2335 init_completion(&adapter
->flash_compl
);
2336 pci_save_state(adapter
->pdev
);
2340 pci_free_consistent(adapter
->pdev
, mbox_mem_alloc
->size
,
2341 mbox_mem_alloc
->va
, mbox_mem_alloc
->dma
);
2344 be_unmap_pci_bars(adapter
);
2350 static void be_stats_cleanup(struct be_adapter
*adapter
)
2352 struct be_stats_obj
*stats
= &adapter
->stats
;
2353 struct be_dma_mem
*cmd
= &stats
->cmd
;
2356 pci_free_consistent(adapter
->pdev
, cmd
->size
,
2360 static int be_stats_init(struct be_adapter
*adapter
)
2362 struct be_stats_obj
*stats
= &adapter
->stats
;
2363 struct be_dma_mem
*cmd
= &stats
->cmd
;
2365 cmd
->size
= sizeof(struct be_cmd_req_get_stats
);
2366 cmd
->va
= pci_alloc_consistent(adapter
->pdev
, cmd
->size
, &cmd
->dma
);
2367 if (cmd
->va
== NULL
)
2369 memset(cmd
->va
, 0, cmd
->size
);
2373 static void __devexit
be_remove(struct pci_dev
*pdev
)
2375 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
2380 unregister_netdev(adapter
->netdev
);
2384 be_stats_cleanup(adapter
);
2386 be_ctrl_cleanup(adapter
);
2388 be_sriov_disable(adapter
);
2390 be_msix_disable(adapter
);
2392 pci_set_drvdata(pdev
, NULL
);
2393 pci_release_regions(pdev
);
2394 pci_disable_device(pdev
);
2396 free_netdev(adapter
->netdev
);
2399 static int be_get_config(struct be_adapter
*adapter
)
2404 status
= be_cmd_get_fw_ver(adapter
, adapter
->fw_ver
);
2408 status
= be_cmd_query_fw_cfg(adapter
,
2409 &adapter
->port_num
, &adapter
->cap
);
2413 memset(mac
, 0, ETH_ALEN
);
2415 if (be_physfn(adapter
)) {
2416 status
= be_cmd_mac_addr_query(adapter
, mac
,
2417 MAC_ADDRESS_TYPE_NETWORK
, true /*permanent */, 0);
2422 if (!is_valid_ether_addr(mac
))
2423 return -EADDRNOTAVAIL
;
2425 memcpy(adapter
->netdev
->dev_addr
, mac
, ETH_ALEN
);
2426 memcpy(adapter
->netdev
->perm_addr
, mac
, ETH_ALEN
);
2429 if (adapter
->cap
& 0x400)
2430 adapter
->max_vlans
= BE_NUM_VLANS_SUPPORTED
/4;
2432 adapter
->max_vlans
= BE_NUM_VLANS_SUPPORTED
;
2437 static int __devinit
be_probe(struct pci_dev
*pdev
,
2438 const struct pci_device_id
*pdev_id
)
2441 struct be_adapter
*adapter
;
2442 struct net_device
*netdev
;
2445 status
= pci_enable_device(pdev
);
2449 status
= pci_request_regions(pdev
, DRV_NAME
);
2452 pci_set_master(pdev
);
2454 netdev
= alloc_etherdev(sizeof(struct be_adapter
));
2455 if (netdev
== NULL
) {
2459 adapter
= netdev_priv(netdev
);
2461 switch (pdev
->device
) {
2464 adapter
->generation
= BE_GEN2
;
2468 adapter
->generation
= BE_GEN3
;
2471 adapter
->generation
= 0;
2474 adapter
->pdev
= pdev
;
2475 pci_set_drvdata(pdev
, adapter
);
2476 adapter
->netdev
= netdev
;
2477 be_netdev_init(netdev
);
2478 SET_NETDEV_DEV(netdev
, &pdev
->dev
);
2480 be_msix_enable(adapter
);
2482 status
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(64));
2484 netdev
->features
|= NETIF_F_HIGHDMA
;
2486 status
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
2488 dev_err(&pdev
->dev
, "Could not set PCI DMA Mask\n");
2493 be_sriov_enable(adapter
);
2495 status
= be_ctrl_init(adapter
);
2499 /* sync up with fw's ready state */
2500 if (be_physfn(adapter
)) {
2501 status
= be_cmd_POST(adapter
);
2506 /* tell fw we're ready to fire cmds */
2507 status
= be_cmd_fw_init(adapter
);
2511 if (be_physfn(adapter
)) {
2512 status
= be_cmd_reset_function(adapter
);
2517 status
= be_stats_init(adapter
);
2521 status
= be_get_config(adapter
);
2525 INIT_DELAYED_WORK(&adapter
->work
, be_worker
);
2527 status
= be_setup(adapter
);
2531 status
= register_netdev(netdev
);
2535 dev_info(&pdev
->dev
, "%s port %d\n", nic_name(pdev
), adapter
->port_num
);
2541 be_stats_cleanup(adapter
);
2543 be_ctrl_cleanup(adapter
);
2545 be_msix_disable(adapter
);
2546 be_sriov_disable(adapter
);
2547 free_netdev(adapter
->netdev
);
2548 pci_set_drvdata(pdev
, NULL
);
2550 pci_release_regions(pdev
);
2552 pci_disable_device(pdev
);
2554 dev_err(&pdev
->dev
, "%s initialization failed\n", nic_name(pdev
));
2558 static int be_suspend(struct pci_dev
*pdev
, pm_message_t state
)
2560 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
2561 struct net_device
*netdev
= adapter
->netdev
;
2564 be_setup_wol(adapter
, true);
2566 netif_device_detach(netdev
);
2567 if (netif_running(netdev
)) {
2572 be_cmd_get_flow_control(adapter
, &adapter
->tx_fc
, &adapter
->rx_fc
);
2575 pci_save_state(pdev
);
2576 pci_disable_device(pdev
);
2577 pci_set_power_state(pdev
, pci_choose_state(pdev
, state
));
2581 static int be_resume(struct pci_dev
*pdev
)
2584 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
2585 struct net_device
*netdev
= adapter
->netdev
;
2587 netif_device_detach(netdev
);
2589 status
= pci_enable_device(pdev
);
2593 pci_set_power_state(pdev
, 0);
2594 pci_restore_state(pdev
);
2596 /* tell fw we're ready to fire cmds */
2597 status
= be_cmd_fw_init(adapter
);
2602 if (netif_running(netdev
)) {
2607 netif_device_attach(netdev
);
2610 be_setup_wol(adapter
, false);
2615 * An FLR will stop BE from DMAing any data.
2617 static void be_shutdown(struct pci_dev
*pdev
)
2619 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
2620 struct net_device
*netdev
= adapter
->netdev
;
2622 netif_device_detach(netdev
);
2624 be_cmd_reset_function(adapter
);
2627 be_setup_wol(adapter
, true);
2629 pci_disable_device(pdev
);
2632 static pci_ers_result_t
be_eeh_err_detected(struct pci_dev
*pdev
,
2633 pci_channel_state_t state
)
2635 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
2636 struct net_device
*netdev
= adapter
->netdev
;
2638 dev_err(&adapter
->pdev
->dev
, "EEH error detected\n");
2640 adapter
->eeh_err
= true;
2642 netif_device_detach(netdev
);
2644 if (netif_running(netdev
)) {
2651 if (state
== pci_channel_io_perm_failure
)
2652 return PCI_ERS_RESULT_DISCONNECT
;
2654 pci_disable_device(pdev
);
2656 return PCI_ERS_RESULT_NEED_RESET
;
2659 static pci_ers_result_t
be_eeh_reset(struct pci_dev
*pdev
)
2661 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
2664 dev_info(&adapter
->pdev
->dev
, "EEH reset\n");
2665 adapter
->eeh_err
= false;
2667 status
= pci_enable_device(pdev
);
2669 return PCI_ERS_RESULT_DISCONNECT
;
2671 pci_set_master(pdev
);
2672 pci_set_power_state(pdev
, 0);
2673 pci_restore_state(pdev
);
2675 /* Check if card is ok and fw is ready */
2676 status
= be_cmd_POST(adapter
);
2678 return PCI_ERS_RESULT_DISCONNECT
;
2680 return PCI_ERS_RESULT_RECOVERED
;
2683 static void be_eeh_resume(struct pci_dev
*pdev
)
2686 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
2687 struct net_device
*netdev
= adapter
->netdev
;
2689 dev_info(&adapter
->pdev
->dev
, "EEH resume\n");
2691 pci_save_state(pdev
);
2693 /* tell fw we're ready to fire cmds */
2694 status
= be_cmd_fw_init(adapter
);
2698 status
= be_setup(adapter
);
2702 if (netif_running(netdev
)) {
2703 status
= be_open(netdev
);
2707 netif_device_attach(netdev
);
2710 dev_err(&adapter
->pdev
->dev
, "EEH resume failed\n");
2713 static struct pci_error_handlers be_eeh_handlers
= {
2714 .error_detected
= be_eeh_err_detected
,
2715 .slot_reset
= be_eeh_reset
,
2716 .resume
= be_eeh_resume
,
2719 static struct pci_driver be_driver
= {
2721 .id_table
= be_dev_ids
,
2723 .remove
= be_remove
,
2724 .suspend
= be_suspend
,
2725 .resume
= be_resume
,
2726 .shutdown
= be_shutdown
,
2727 .err_handler
= &be_eeh_handlers
2730 static int __init
be_init_module(void)
2732 if (rx_frag_size
!= 8192 && rx_frag_size
!= 4096 &&
2733 rx_frag_size
!= 2048) {
2734 printk(KERN_WARNING DRV_NAME
2735 " : Module param rx_frag_size must be 2048/4096/8192."
2737 rx_frag_size
= 2048;
2741 printk(KERN_WARNING DRV_NAME
2742 " : Module param num_vfs must not be greater than 32."
2747 return pci_register_driver(&be_driver
);
2749 module_init(be_init_module
);
2751 static void __exit
be_exit_module(void)
2753 pci_unregister_driver(&be_driver
);
2755 module_exit(be_exit_module
);