2 * PS3 gelic network driver.
4 * Copyright (C) 2007 Sony Computer Entertainment Inc.
5 * Copyright 2006, 2007 Sony Corporation
7 * This file is based on: spider_net.c
9 * (C) Copyright IBM Corp. 2005
11 * Authors : Utz Bacher <utz.bacher@de.ibm.com>
12 * Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2, or (at your option)
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31 #include <linux/kernel.h>
32 #include <linux/module.h>
34 #include <linux/etherdevice.h>
35 #include <linux/ethtool.h>
36 #include <linux/if_vlan.h>
40 #include <linux/tcp.h>
42 #include <linux/dma-mapping.h>
43 #include <net/checksum.h>
44 #include <asm/firmware.h>
46 #include <asm/lv1call.h>
48 #include "ps3_gelic_net.h"
50 #define DRV_NAME "Gelic Network Driver"
51 #define DRV_VERSION "1.0"
53 MODULE_AUTHOR("SCE Inc.");
54 MODULE_DESCRIPTION("Gelic Network driver");
55 MODULE_LICENSE("GPL");
57 static inline struct device
*ctodev(struct gelic_net_card
*card
)
59 return &card
->dev
->core
;
61 static inline unsigned int bus_id(struct gelic_net_card
*card
)
63 return card
->dev
->bus_id
;
65 static inline unsigned int dev_id(struct gelic_net_card
*card
)
67 return card
->dev
->dev_id
;
71 static int gelic_net_set_irq_mask(struct gelic_net_card
*card
, u64 mask
)
75 status
= lv1_net_set_interrupt_mask(bus_id(card
), dev_id(card
),
78 dev_info(ctodev(card
),
79 "lv1_net_set_interrupt_mask failed %d\n", status
);
82 static inline void gelic_net_rx_irq_on(struct gelic_net_card
*card
)
84 gelic_net_set_irq_mask(card
, card
->ghiintmask
| GELIC_NET_RXINT
);
86 static inline void gelic_net_rx_irq_off(struct gelic_net_card
*card
)
88 gelic_net_set_irq_mask(card
, card
->ghiintmask
& ~GELIC_NET_RXINT
);
91 * gelic_net_get_descr_status -- returns the status of a descriptor
92 * @descr: descriptor to look at
94 * returns the status as in the dmac_cmd_status field of the descriptor
96 static enum gelic_net_descr_status
97 gelic_net_get_descr_status(struct gelic_net_descr
*descr
)
101 cmd_status
= descr
->dmac_cmd_status
;
102 cmd_status
>>= GELIC_NET_DESCR_IND_PROC_SHIFT
;
107 * gelic_net_set_descr_status -- sets the status of a descriptor
108 * @descr: descriptor to change
109 * @status: status to set in the descriptor
111 * changes the status to the specified value. Doesn't change other bits
114 static void gelic_net_set_descr_status(struct gelic_net_descr
*descr
,
115 enum gelic_net_descr_status status
)
119 /* read the status */
120 cmd_status
= descr
->dmac_cmd_status
;
121 /* clean the upper 4 bits */
122 cmd_status
&= GELIC_NET_DESCR_IND_PROC_MASKO
;
123 /* add the status to it */
124 cmd_status
|= ((u32
)status
) << GELIC_NET_DESCR_IND_PROC_SHIFT
;
125 /* and write it back */
126 descr
->dmac_cmd_status
= cmd_status
;
128 * dma_cmd_status field is used to indicate whether the descriptor
130 * Usually caller of this function wants to inform that to the
131 * hardware, so we assure here the hardware sees the change.
137 * gelic_net_free_chain - free descriptor chain
138 * @card: card structure
139 * @descr_in: address of desc
141 static void gelic_net_free_chain(struct gelic_net_card
*card
,
142 struct gelic_net_descr
*descr_in
)
144 struct gelic_net_descr
*descr
;
146 for (descr
= descr_in
; descr
&& descr
->bus_addr
; descr
= descr
->next
) {
147 dma_unmap_single(ctodev(card
), descr
->bus_addr
,
148 GELIC_NET_DESCR_SIZE
, DMA_BIDIRECTIONAL
);
154 * gelic_net_init_chain - links descriptor chain
155 * @card: card structure
156 * @chain: address of chain
157 * @start_descr: address of descriptor array
158 * @no: number of descriptors
160 * we manage a circular list that mirrors the hardware structure,
161 * except that the hardware uses bus addresses.
163 * returns 0 on success, <0 on failure
165 static int gelic_net_init_chain(struct gelic_net_card
*card
,
166 struct gelic_net_descr_chain
*chain
,
167 struct gelic_net_descr
*start_descr
, int no
)
170 struct gelic_net_descr
*descr
;
173 memset(descr
, 0, sizeof(*descr
) * no
);
175 /* set up the hardware pointers in each descriptor */
176 for (i
= 0; i
< no
; i
++, descr
++) {
177 gelic_net_set_descr_status(descr
, GELIC_NET_DESCR_NOT_IN_USE
);
179 dma_map_single(ctodev(card
), descr
,
180 GELIC_NET_DESCR_SIZE
,
183 if (!descr
->bus_addr
)
186 descr
->next
= descr
+ 1;
187 descr
->prev
= descr
- 1;
189 /* make them as ring */
190 (descr
- 1)->next
= start_descr
;
191 start_descr
->prev
= (descr
- 1);
193 /* chain bus addr of hw descriptor */
195 for (i
= 0; i
< no
; i
++, descr
++) {
196 descr
->next_descr_addr
= descr
->next
->bus_addr
;
199 chain
->head
= start_descr
;
200 chain
->tail
= start_descr
;
202 /* do not chain last hw descriptor */
203 (descr
- 1)->next_descr_addr
= 0;
208 for (i
--, descr
--; 0 <= i
; i
--, descr
--)
210 dma_unmap_single(ctodev(card
), descr
->bus_addr
,
211 GELIC_NET_DESCR_SIZE
,
217 * gelic_net_prepare_rx_descr - reinitializes a rx descriptor
218 * @card: card structure
219 * @descr: descriptor to re-init
221 * return 0 on succes, <0 on failure
223 * allocates a new rx skb, iommu-maps it and attaches it to the descriptor.
224 * Activate the descriptor state-wise
226 static int gelic_net_prepare_rx_descr(struct gelic_net_card
*card
,
227 struct gelic_net_descr
*descr
)
230 unsigned int bufsize
;
232 if (gelic_net_get_descr_status(descr
) != GELIC_NET_DESCR_NOT_IN_USE
) {
233 dev_info(ctodev(card
), "%s: ERROR status \n", __func__
);
235 /* we need to round up the buffer size to a multiple of 128 */
236 bufsize
= ALIGN(GELIC_NET_MAX_MTU
, GELIC_NET_RXBUF_ALIGN
);
238 /* and we need to have it 128 byte aligned, therefore we allocate a
240 descr
->skb
= netdev_alloc_skb(card
->netdev
,
241 bufsize
+ GELIC_NET_RXBUF_ALIGN
- 1);
243 descr
->buf_addr
= 0; /* tell DMAC don't touch memory */
244 dev_info(ctodev(card
),
245 "%s:allocate skb failed !!\n", __func__
);
248 descr
->buf_size
= bufsize
;
249 descr
->dmac_cmd_status
= 0;
250 descr
->result_size
= 0;
251 descr
->valid_size
= 0;
252 descr
->data_error
= 0;
254 offset
= ((unsigned long)descr
->skb
->data
) &
255 (GELIC_NET_RXBUF_ALIGN
- 1);
257 skb_reserve(descr
->skb
, GELIC_NET_RXBUF_ALIGN
- offset
);
258 /* io-mmu-map the skb */
259 descr
->buf_addr
= dma_map_single(ctodev(card
), descr
->skb
->data
,
262 if (!descr
->buf_addr
) {
263 dev_kfree_skb_any(descr
->skb
);
265 dev_info(ctodev(card
),
266 "%s:Could not iommu-map rx buffer\n", __func__
);
267 gelic_net_set_descr_status(descr
, GELIC_NET_DESCR_NOT_IN_USE
);
270 gelic_net_set_descr_status(descr
, GELIC_NET_DESCR_CARDOWNED
);
276 * gelic_net_release_rx_chain - free all skb of rx descr
277 * @card: card structure
280 static void gelic_net_release_rx_chain(struct gelic_net_card
*card
)
282 struct gelic_net_descr
*descr
= card
->rx_chain
.head
;
286 dma_unmap_single(ctodev(card
),
291 dev_kfree_skb_any(descr
->skb
);
293 gelic_net_set_descr_status(descr
,
294 GELIC_NET_DESCR_NOT_IN_USE
);
297 } while (descr
!= card
->rx_chain
.head
);
301 * gelic_net_fill_rx_chain - fills descriptors/skbs in the rx chains
302 * @card: card structure
304 * fills all descriptors in the rx chain: allocates skbs
305 * and iommu-maps them.
306 * returns 0 on success, <0 on failure
308 static int gelic_net_fill_rx_chain(struct gelic_net_card
*card
)
310 struct gelic_net_descr
*descr
= card
->rx_chain
.head
;
315 ret
= gelic_net_prepare_rx_descr(card
, descr
);
320 } while (descr
!= card
->rx_chain
.head
);
324 gelic_net_release_rx_chain(card
);
329 * gelic_net_alloc_rx_skbs - allocates rx skbs in rx descriptor chains
330 * @card: card structure
332 * returns 0 on success, <0 on failure
334 static int gelic_net_alloc_rx_skbs(struct gelic_net_card
*card
)
336 struct gelic_net_descr_chain
*chain
;
338 chain
= &card
->rx_chain
;
339 ret
= gelic_net_fill_rx_chain(card
);
340 chain
->head
= card
->rx_top
->prev
; /* point to the last */
345 * gelic_net_release_tx_descr - processes a used tx descriptor
346 * @card: card structure
347 * @descr: descriptor to release
349 * releases a used tx descriptor (unmapping, freeing of skb)
351 static void gelic_net_release_tx_descr(struct gelic_net_card
*card
,
352 struct gelic_net_descr
*descr
)
357 if (descr
->data_status
& (1 << GELIC_NET_TXDESC_TAIL
)) {
360 dma_unmap_single(ctodev(card
), descr
->buf_addr
, skb
->len
,
362 dev_kfree_skb_any(skb
);
364 dma_unmap_single(ctodev(card
), descr
->buf_addr
,
365 descr
->buf_size
, DMA_TO_DEVICE
);
370 descr
->next_descr_addr
= 0;
371 descr
->result_size
= 0;
372 descr
->valid_size
= 0;
373 descr
->data_status
= 0;
374 descr
->data_error
= 0;
377 /* set descr status */
378 gelic_net_set_descr_status(descr
, GELIC_NET_DESCR_NOT_IN_USE
);
382 * gelic_net_release_tx_chain - processes sent tx descriptors
383 * @card: adapter structure
384 * @stop: net_stop sequence
386 * releases the tx descriptors that gelic has finished with
388 static void gelic_net_release_tx_chain(struct gelic_net_card
*card
, int stop
)
390 struct gelic_net_descr_chain
*tx_chain
;
391 enum gelic_net_descr_status status
;
394 for (tx_chain
= &card
->tx_chain
;
395 tx_chain
->head
!= tx_chain
->tail
&& tx_chain
->tail
;
396 tx_chain
->tail
= tx_chain
->tail
->next
) {
397 status
= gelic_net_get_descr_status(tx_chain
->tail
);
399 case GELIC_NET_DESCR_RESPONSE_ERROR
:
400 case GELIC_NET_DESCR_PROTECTION_ERROR
:
401 case GELIC_NET_DESCR_FORCE_END
:
402 if (printk_ratelimit())
403 dev_info(ctodev(card
),
404 "%s: forcing end of tx descriptor " \
407 card
->netdev
->stats
.tx_dropped
++;
410 case GELIC_NET_DESCR_COMPLETE
:
411 if (tx_chain
->tail
->skb
) {
412 card
->netdev
->stats
.tx_packets
++;
413 card
->netdev
->stats
.tx_bytes
+=
414 tx_chain
->tail
->skb
->len
;
418 case GELIC_NET_DESCR_CARDOWNED
:
419 /* pending tx request */
421 /* any other value (== GELIC_NET_DESCR_NOT_IN_USE) */
425 gelic_net_release_tx_descr(card
, tx_chain
->tail
);
429 if (!stop
&& (2 < release
))
430 netif_wake_queue(card
->netdev
);
434 * gelic_net_set_multi - sets multicast addresses and promisc flags
435 * @netdev: interface device structure
437 * gelic_net_set_multi configures multicast addresses as needed for the
438 * netdev interface. It also sets up multicast, allmulti and promisc
439 * flags appropriately
441 static void gelic_net_set_multi(struct net_device
*netdev
)
443 struct gelic_net_card
*card
= netdev_priv(netdev
);
444 struct dev_mc_list
*mc
;
450 /* clear all multicast address */
451 status
= lv1_net_remove_multicast_address(bus_id(card
), dev_id(card
),
454 dev_err(ctodev(card
),
455 "lv1_net_remove_multicast_address failed %d\n",
457 /* set broadcast address */
458 status
= lv1_net_add_multicast_address(bus_id(card
), dev_id(card
),
459 GELIC_NET_BROADCAST_ADDR
, 0);
461 dev_err(ctodev(card
),
462 "lv1_net_add_multicast_address failed, %d\n",
465 if (netdev
->flags
& IFF_ALLMULTI
466 || netdev
->mc_count
> GELIC_NET_MC_COUNT_MAX
) { /* list max */
467 status
= lv1_net_add_multicast_address(bus_id(card
),
471 dev_err(ctodev(card
),
472 "lv1_net_add_multicast_address failed, %d\n",
477 /* set multicast address */
478 for (mc
= netdev
->mc_list
; mc
; mc
= mc
->next
) {
481 for (i
= 0; i
< ETH_ALEN
; i
++) {
485 status
= lv1_net_add_multicast_address(bus_id(card
),
489 dev_err(ctodev(card
),
490 "lv1_net_add_multicast_address failed, %d\n",
496 * gelic_net_enable_rxdmac - enables the receive DMA controller
497 * @card: card structure
499 * gelic_net_enable_rxdmac enables the DMA controller by setting RX_DMA_EN
500 * in the GDADMACCNTR register
502 static inline void gelic_net_enable_rxdmac(struct gelic_net_card
*card
)
506 status
= lv1_net_start_rx_dma(bus_id(card
), dev_id(card
),
507 card
->rx_chain
.tail
->bus_addr
, 0);
509 dev_info(ctodev(card
),
510 "lv1_net_start_rx_dma failed, status=%d\n", status
);
514 * gelic_net_disable_rxdmac - disables the receive DMA controller
515 * @card: card structure
517 * gelic_net_disable_rxdmac terminates processing on the DMA controller by
518 * turing off DMA and issueing a force end
520 static inline void gelic_net_disable_rxdmac(struct gelic_net_card
*card
)
524 /* this hvc blocks until the DMA in progress really stopped */
525 status
= lv1_net_stop_rx_dma(bus_id(card
), dev_id(card
), 0);
527 dev_err(ctodev(card
),
528 "lv1_net_stop_rx_dma faild, %d\n", status
);
532 * gelic_net_disable_txdmac - disables the transmit DMA controller
533 * @card: card structure
535 * gelic_net_disable_txdmac terminates processing on the DMA controller by
536 * turing off DMA and issueing a force end
538 static inline void gelic_net_disable_txdmac(struct gelic_net_card
*card
)
542 /* this hvc blocks until the DMA in progress really stopped */
543 status
= lv1_net_stop_tx_dma(bus_id(card
), dev_id(card
), 0);
545 dev_err(ctodev(card
),
546 "lv1_net_stop_tx_dma faild, status=%d\n", status
);
550 * gelic_net_stop - called upon ifconfig down
551 * @netdev: interface device structure
555 static int gelic_net_stop(struct net_device
*netdev
)
557 struct gelic_net_card
*card
= netdev_priv(netdev
);
559 napi_disable(&card
->napi
);
560 netif_stop_queue(netdev
);
562 /* turn off DMA, force end */
563 gelic_net_disable_rxdmac(card
);
564 gelic_net_disable_txdmac(card
);
566 gelic_net_set_irq_mask(card
, 0);
568 /* disconnect event port */
569 free_irq(card
->netdev
->irq
, card
->netdev
);
570 ps3_sb_event_receive_port_destroy(card
->dev
, card
->netdev
->irq
);
571 card
->netdev
->irq
= NO_IRQ
;
573 netif_carrier_off(netdev
);
576 gelic_net_release_tx_chain(card
, 1);
577 gelic_net_release_rx_chain(card
);
579 gelic_net_free_chain(card
, card
->tx_top
);
580 gelic_net_free_chain(card
, card
->rx_top
);
586 * gelic_net_get_next_tx_descr - returns the next available tx descriptor
587 * @card: device structure to get descriptor from
589 * returns the address of the next descriptor, or NULL if not available.
591 static struct gelic_net_descr
*
592 gelic_net_get_next_tx_descr(struct gelic_net_card
*card
)
594 if (!card
->tx_chain
.head
)
596 /* see if we can two consecutive free descrs */
597 if (card
->tx_chain
.tail
!= card
->tx_chain
.head
->next
&&
598 gelic_net_get_descr_status(card
->tx_chain
.head
) ==
599 GELIC_NET_DESCR_NOT_IN_USE
&&
600 card
->tx_chain
.tail
!= card
->tx_chain
.head
->next
->next
&&
601 gelic_net_get_descr_status(card
->tx_chain
.head
->next
) ==
602 GELIC_NET_DESCR_NOT_IN_USE
)
603 return card
->tx_chain
.head
;
610 * gelic_net_set_txdescr_cmdstat - sets the tx descriptor command field
611 * @descr: descriptor structure to fill out
612 * @skb: packet to consider
613 * @middle: middle of frame
615 * fills out the command and status field of the descriptor structure,
616 * depending on hardware checksum settings. This function assumes a wmb()
617 * has executed before.
619 static void gelic_net_set_txdescr_cmdstat(struct gelic_net_descr
*descr
,
620 struct sk_buff
*skb
, int middle
)
627 eofr
= GELIC_NET_DMAC_CMDSTAT_END_FRAME
;
629 if (skb
->ip_summed
!= CHECKSUM_PARTIAL
)
630 descr
->dmac_cmd_status
= GELIC_NET_DMAC_CMDSTAT_NOCS
| eofr
;
633 * if yes: tcp? udp? */
634 if (skb
->protocol
== htons(ETH_P_IP
)) {
635 if (ip_hdr(skb
)->protocol
== IPPROTO_TCP
)
636 descr
->dmac_cmd_status
=
637 GELIC_NET_DMAC_CMDSTAT_TCPCS
| eofr
;
638 else if (ip_hdr(skb
)->protocol
== IPPROTO_UDP
)
639 descr
->dmac_cmd_status
=
640 GELIC_NET_DMAC_CMDSTAT_UDPCS
| eofr
;
642 * the stack should checksum non-tcp and non-udp
643 * packets on his own: NETIF_F_IP_CSUM
645 descr
->dmac_cmd_status
=
646 GELIC_NET_DMAC_CMDSTAT_NOCS
| eofr
;
652 * gelic_net_prepare_tx_descr_v - get dma address of skb_data
653 * @card: card structure
654 * @descr: descriptor structure
655 * @skb: packet to use
657 * returns 0 on success, <0 on failure.
660 static int gelic_net_prepare_tx_descr_v(struct gelic_net_card
*card
,
661 struct gelic_net_descr
*descr
,
665 unsigned int vlan_len
;
666 struct gelic_net_descr
*sec_descr
= descr
->next
;
668 if (skb
->len
< GELIC_NET_VLAN_POS
)
671 vlan_len
= GELIC_NET_VLAN_POS
;
672 memcpy(&descr
->vlan
, skb
->data
, vlan_len
);
673 if (card
->vlan_index
!= -1) {
674 /* internal vlan tag used */
675 descr
->vlan
.h_vlan_proto
= htons(ETH_P_8021Q
); /* vlan 0x8100*/
676 descr
->vlan
.h_vlan_TCI
= htons(card
->vlan_id
[card
->vlan_index
]);
677 vlan_len
+= VLAN_HLEN
; /* added for above two lines */
681 buf
[0] = dma_map_single(ctodev(card
), &descr
->vlan
,
682 vlan_len
, DMA_TO_DEVICE
);
685 dev_err(ctodev(card
),
686 "dma map 1 failed (%p, %i). Dropping packet\n",
687 skb
->data
, vlan_len
);
691 buf
[1] = dma_map_single(ctodev(card
), skb
->data
+ GELIC_NET_VLAN_POS
,
692 skb
->len
- GELIC_NET_VLAN_POS
,
696 dev_err(ctodev(card
),
697 "dma map 2 failed (%p, %i). Dropping packet\n",
698 skb
->data
+ GELIC_NET_VLAN_POS
,
699 skb
->len
- GELIC_NET_VLAN_POS
);
700 dma_unmap_single(ctodev(card
), buf
[0], vlan_len
,
706 descr
->buf_addr
= buf
[0];
707 descr
->buf_size
= vlan_len
;
708 descr
->skb
= NULL
; /* not used */
709 descr
->data_status
= 0;
710 descr
->next_descr_addr
= descr
->next
->bus_addr
;
711 gelic_net_set_txdescr_cmdstat(descr
, skb
, 1); /* not the frame end */
714 sec_descr
->buf_addr
= buf
[1];
715 sec_descr
->buf_size
= skb
->len
- GELIC_NET_VLAN_POS
;
716 sec_descr
->skb
= skb
;
717 sec_descr
->data_status
= 0;
718 sec_descr
->next_descr_addr
= 0; /* terminate hw descr */
719 gelic_net_set_txdescr_cmdstat(sec_descr
, skb
, 0);
721 /* bump free descriptor pointer */
722 card
->tx_chain
.head
= sec_descr
->next
;
727 * gelic_net_kick_txdma - enables TX DMA processing
728 * @card: card structure
729 * @descr: descriptor address to enable TX processing at
732 static int gelic_net_kick_txdma(struct gelic_net_card
*card
,
733 struct gelic_net_descr
*descr
)
738 if (card
->tx_dma_progress
)
741 if (gelic_net_get_descr_status(descr
) == GELIC_NET_DESCR_CARDOWNED
) {
742 card
->tx_dma_progress
= 1;
743 /* sometimes we need retry here */
745 status
= lv1_net_start_tx_dma(bus_id(card
),
752 dev_info(ctodev(card
), "lv1_net_start_txdma failed," \
754 status
, card
->irq_status
);
760 * gelic_net_xmit - transmits a frame over the device
761 * @skb: packet to send out
762 * @netdev: interface device structure
764 * returns 0 on success, <0 on failure
766 static int gelic_net_xmit(struct sk_buff
*skb
, struct net_device
*netdev
)
768 struct gelic_net_card
*card
= netdev_priv(netdev
);
769 struct gelic_net_descr
*descr
;
773 spin_lock_irqsave(&card
->tx_dma_lock
, flags
);
775 gelic_net_release_tx_chain(card
, 0);
777 descr
= gelic_net_get_next_tx_descr(card
);
780 * no more descriptors free
782 netif_stop_queue(netdev
);
783 spin_unlock_irqrestore(&card
->tx_dma_lock
, flags
);
784 return NETDEV_TX_BUSY
;
787 result
= gelic_net_prepare_tx_descr_v(card
, descr
, skb
);
790 * DMA map failed. As chanses are that failure
791 * would continue, just release skb and return
793 card
->netdev
->stats
.tx_dropped
++;
794 dev_kfree_skb_any(skb
);
795 spin_unlock_irqrestore(&card
->tx_dma_lock
, flags
);
799 * link this prepared descriptor to previous one
800 * to achieve high performance
802 descr
->prev
->next_descr_addr
= descr
->bus_addr
;
804 * as hardware descriptor is modified in the above lines,
805 * ensure that the hardware sees it
808 if (gelic_net_kick_txdma(card
, descr
)) {
811 * release descriptors which were just prepared
813 card
->netdev
->stats
.tx_dropped
++;
814 gelic_net_release_tx_descr(card
, descr
);
815 gelic_net_release_tx_descr(card
, descr
->next
);
816 card
->tx_chain
.tail
= descr
->next
->next
;
817 dev_info(ctodev(card
), "%s: kick failure\n", __func__
);
819 /* OK, DMA started/reserved */
820 netdev
->trans_start
= jiffies
;
823 spin_unlock_irqrestore(&card
->tx_dma_lock
, flags
);
828 * gelic_net_pass_skb_up - takes an skb from a descriptor and passes it on
829 * @descr: descriptor to process
830 * @card: card structure
832 * iommu-unmaps the skb, fills out skb structure and passes the data to the
833 * stack. The descriptor state is not changed.
835 static void gelic_net_pass_skb_up(struct gelic_net_descr
*descr
,
836 struct gelic_net_card
*card
)
839 struct net_device
*netdev
;
840 u32 data_status
, data_error
;
842 data_status
= descr
->data_status
;
843 data_error
= descr
->data_error
;
844 netdev
= card
->netdev
;
845 /* unmap skb buffer */
847 dma_unmap_single(ctodev(card
), descr
->buf_addr
, GELIC_NET_MAX_MTU
,
850 skb_put(skb
, descr
->valid_size
? descr
->valid_size
: descr
->result_size
);
851 if (!descr
->valid_size
)
852 dev_info(ctodev(card
), "buffer full %x %x %x\n",
853 descr
->result_size
, descr
->buf_size
,
854 descr
->dmac_cmd_status
);
858 * the card put 2 bytes vlan tag in front
859 * of the ethernet frame
862 skb
->protocol
= eth_type_trans(skb
, netdev
);
864 /* checksum offload */
866 if ((data_status
& GELIC_NET_DATA_STATUS_CHK_MASK
) &&
867 (!(data_error
& GELIC_NET_DATA_ERROR_CHK_MASK
)))
868 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
870 skb
->ip_summed
= CHECKSUM_NONE
;
872 skb
->ip_summed
= CHECKSUM_NONE
;
874 /* update netdevice statistics */
875 card
->netdev
->stats
.rx_packets
++;
876 card
->netdev
->stats
.rx_bytes
+= skb
->len
;
878 /* pass skb up to stack */
879 netif_receive_skb(skb
);
883 * gelic_net_decode_one_descr - processes an rx descriptor
884 * @card: card structure
886 * returns 1 if a packet has been sent to the stack, otherwise 0
888 * processes an rx descriptor by iommu-unmapping the data buffer and passing
889 * the packet up to the stack
891 static int gelic_net_decode_one_descr(struct gelic_net_card
*card
)
893 enum gelic_net_descr_status status
;
894 struct gelic_net_descr_chain
*chain
= &card
->rx_chain
;
895 struct gelic_net_descr
*descr
= chain
->tail
;
896 int dmac_chain_ended
;
898 status
= gelic_net_get_descr_status(descr
);
899 /* is this descriptor terminated with next_descr == NULL? */
901 descr
->dmac_cmd_status
& GELIC_NET_DMAC_CMDSTAT_RXDCEIS
;
903 if (status
== GELIC_NET_DESCR_CARDOWNED
)
906 if (status
== GELIC_NET_DESCR_NOT_IN_USE
) {
907 dev_dbg(ctodev(card
), "dormant descr? %p\n", descr
);
911 if ((status
== GELIC_NET_DESCR_RESPONSE_ERROR
) ||
912 (status
== GELIC_NET_DESCR_PROTECTION_ERROR
) ||
913 (status
== GELIC_NET_DESCR_FORCE_END
)) {
914 dev_info(ctodev(card
), "dropping RX descriptor with state %x\n",
916 card
->netdev
->stats
.rx_dropped
++;
920 if (status
== GELIC_NET_DESCR_BUFFER_FULL
) {
922 * Buffer full would occur if and only if
923 * the frame length was longer than the size of this
924 * descriptor's buffer. If the frame length was equal
925 * to or shorter than buffer'size, FRAME_END condition
927 * Anyway this frame was longer than the MTU,
930 dev_info(ctodev(card
), "overlength frame\n");
934 * descriptoers any other than FRAME_END here should
935 * be treated as error.
937 if (status
!= GELIC_NET_DESCR_FRAME_END
) {
938 dev_dbg(ctodev(card
), "RX descriptor with state %x\n",
943 /* ok, we've got a packet in descr */
944 gelic_net_pass_skb_up(descr
, card
);
947 * So that always DMAC can see the end
948 * of the descriptor chain to avoid
949 * from unwanted DMAC overrun.
951 descr
->next_descr_addr
= 0;
953 /* change the descriptor state: */
954 gelic_net_set_descr_status(descr
, GELIC_NET_DESCR_NOT_IN_USE
);
957 * this call can fail, but for now, just leave this
958 * decriptor without skb
960 gelic_net_prepare_rx_descr(card
, descr
);
963 chain
->tail
= descr
->next
;
966 * Set this descriptor the end of the chain.
968 descr
->prev
->next_descr_addr
= descr
->bus_addr
;
971 * If dmac chain was met, DMAC stopped.
974 if (dmac_chain_ended
) {
975 card
->rx_dma_restart_required
= 1;
976 dev_dbg(ctodev(card
), "reenable rx dma scheduled\n");
983 * gelic_net_poll - NAPI poll function called by the stack to return packets
984 * @netdev: interface device structure
985 * @budget: number of packets we can pass to the stack at most
987 * returns 0 if no more packets available to the driver/stack. Returns 1,
988 * if the quota is exceeded, but the driver has still packets.
991 static int gelic_net_poll(struct napi_struct
*napi
, int budget
)
993 struct gelic_net_card
*card
= container_of(napi
, struct gelic_net_card
, napi
);
994 struct net_device
*netdev
= card
->netdev
;
995 int packets_done
= 0;
997 while (packets_done
< budget
) {
998 if (!gelic_net_decode_one_descr(card
))
1004 if (packets_done
< budget
) {
1005 netif_rx_complete(netdev
, napi
);
1006 gelic_net_rx_irq_on(card
);
1008 return packets_done
;
1011 * gelic_net_change_mtu - changes the MTU of an interface
1012 * @netdev: interface device structure
1013 * @new_mtu: new MTU value
1015 * returns 0 on success, <0 on failure
1017 static int gelic_net_change_mtu(struct net_device
*netdev
, int new_mtu
)
1019 /* no need to re-alloc skbs or so -- the max mtu is about 2.3k
1020 * and mtu is outbound only anyway */
1021 if ((new_mtu
< GELIC_NET_MIN_MTU
) ||
1022 (new_mtu
> GELIC_NET_MAX_MTU
)) {
1025 netdev
->mtu
= new_mtu
;
1030 * gelic_net_interrupt - event handler for gelic_net
1032 static irqreturn_t
gelic_net_interrupt(int irq
, void *ptr
)
1034 unsigned long flags
;
1035 struct net_device
*netdev
= ptr
;
1036 struct gelic_net_card
*card
= netdev_priv(netdev
);
1039 status
= card
->irq_status
;
1044 if (card
->rx_dma_restart_required
) {
1045 card
->rx_dma_restart_required
= 0;
1046 gelic_net_enable_rxdmac(card
);
1049 if (status
& GELIC_NET_RXINT
) {
1050 gelic_net_rx_irq_off(card
);
1051 netif_rx_schedule(netdev
, &card
->napi
);
1054 if (status
& GELIC_NET_TXINT
) {
1055 spin_lock_irqsave(&card
->tx_dma_lock
, flags
);
1056 card
->tx_dma_progress
= 0;
1057 gelic_net_release_tx_chain(card
, 0);
1058 /* kick outstanding tx descriptor if any */
1059 gelic_net_kick_txdma(card
, card
->tx_chain
.tail
);
1060 spin_unlock_irqrestore(&card
->tx_dma_lock
, flags
);
1065 #ifdef CONFIG_NET_POLL_CONTROLLER
1067 * gelic_net_poll_controller - artificial interrupt for netconsole etc.
1068 * @netdev: interface device structure
1070 * see Documentation/networking/netconsole.txt
1072 static void gelic_net_poll_controller(struct net_device
*netdev
)
1074 struct gelic_net_card
*card
= netdev_priv(netdev
);
1076 gelic_net_set_irq_mask(card
, 0);
1077 gelic_net_interrupt(netdev
->irq
, netdev
);
1078 gelic_net_set_irq_mask(card
, card
->ghiintmask
);
1080 #endif /* CONFIG_NET_POLL_CONTROLLER */
1083 * gelic_net_open_device - open device and map dma region
1084 * @card: card structure
1086 static int gelic_net_open_device(struct gelic_net_card
*card
)
1090 result
= ps3_sb_event_receive_port_setup(card
->dev
, PS3_BINDING_CPU_ANY
,
1091 &card
->netdev
->irq
);
1094 dev_info(ctodev(card
),
1095 "%s:%d: gelic_net_open_device failed (%d)\n",
1096 __func__
, __LINE__
, result
);
1098 goto fail_alloc_irq
;
1101 result
= request_irq(card
->netdev
->irq
, gelic_net_interrupt
,
1102 IRQF_DISABLED
, card
->netdev
->name
, card
->netdev
);
1105 dev_info(ctodev(card
), "%s:%d: request_irq failed (%d)\n",
1106 __func__
, __LINE__
, result
);
1107 goto fail_request_irq
;
1113 ps3_sb_event_receive_port_destroy(card
->dev
, card
->netdev
->irq
);
1114 card
->netdev
->irq
= NO_IRQ
;
1121 * gelic_net_open - called upon ifonfig up
1122 * @netdev: interface device structure
1124 * returns 0 on success, <0 on failure
1126 * gelic_net_open allocates all the descriptors and memory needed for
1127 * operation, sets up multicast list and enables interrupts
1129 static int gelic_net_open(struct net_device
*netdev
)
1131 struct gelic_net_card
*card
= netdev_priv(netdev
);
1133 dev_dbg(ctodev(card
), " -> %s:%d\n", __func__
, __LINE__
);
1135 gelic_net_open_device(card
);
1137 if (gelic_net_init_chain(card
, &card
->tx_chain
,
1138 card
->descr
, GELIC_NET_TX_DESCRIPTORS
))
1139 goto alloc_tx_failed
;
1140 if (gelic_net_init_chain(card
, &card
->rx_chain
,
1141 card
->descr
+ GELIC_NET_TX_DESCRIPTORS
,
1142 GELIC_NET_RX_DESCRIPTORS
))
1143 goto alloc_rx_failed
;
1146 card
->tx_top
= card
->tx_chain
.head
;
1147 card
->rx_top
= card
->rx_chain
.head
;
1148 dev_dbg(ctodev(card
), "descr rx %p, tx %p, size %#lx, num %#x\n",
1149 card
->rx_top
, card
->tx_top
, sizeof(struct gelic_net_descr
),
1150 GELIC_NET_RX_DESCRIPTORS
);
1151 /* allocate rx skbs */
1152 if (gelic_net_alloc_rx_skbs(card
))
1153 goto alloc_skbs_failed
;
1155 napi_enable(&card
->napi
);
1157 card
->tx_dma_progress
= 0;
1158 card
->ghiintmask
= GELIC_NET_RXINT
| GELIC_NET_TXINT
;
1160 gelic_net_set_irq_mask(card
, card
->ghiintmask
);
1161 gelic_net_enable_rxdmac(card
);
1163 netif_start_queue(netdev
);
1164 netif_carrier_on(netdev
);
1169 gelic_net_free_chain(card
, card
->rx_top
);
1171 gelic_net_free_chain(card
, card
->tx_top
);
1176 static void gelic_net_get_drvinfo (struct net_device
*netdev
,
1177 struct ethtool_drvinfo
*info
)
1179 strncpy(info
->driver
, DRV_NAME
, sizeof(info
->driver
) - 1);
1180 strncpy(info
->version
, DRV_VERSION
, sizeof(info
->version
) - 1);
1183 static int gelic_net_get_settings(struct net_device
*netdev
,
1184 struct ethtool_cmd
*cmd
)
1186 struct gelic_net_card
*card
= netdev_priv(netdev
);
1191 speed
= duplex
= -1;
1192 status
= lv1_net_control(bus_id(card
), dev_id(card
),
1193 GELIC_NET_GET_ETH_PORT_STATUS
, GELIC_NET_PORT
, 0, 0,
1198 if (v1
& GELIC_NET_FULL_DUPLEX
) {
1199 duplex
= DUPLEX_FULL
;
1201 duplex
= DUPLEX_HALF
;
1204 if (v1
& GELIC_NET_SPEED_10
) {
1206 } else if (v1
& GELIC_NET_SPEED_100
) {
1208 } else if (v1
& GELIC_NET_SPEED_1000
) {
1212 cmd
->supported
= SUPPORTED_TP
| SUPPORTED_Autoneg
|
1213 SUPPORTED_10baseT_Half
| SUPPORTED_10baseT_Full
|
1214 SUPPORTED_100baseT_Half
| SUPPORTED_100baseT_Full
|
1215 SUPPORTED_1000baseT_Half
| SUPPORTED_1000baseT_Full
;
1216 cmd
->advertising
= cmd
->supported
;
1218 cmd
->duplex
= duplex
;
1219 cmd
->autoneg
= AUTONEG_ENABLE
; /* always enabled */
1220 cmd
->port
= PORT_TP
;
1225 static u32
gelic_net_get_link(struct net_device
*netdev
)
1227 struct gelic_net_card
*card
= netdev_priv(netdev
);
1232 status
= lv1_net_control(bus_id(card
), dev_id(card
),
1233 GELIC_NET_GET_ETH_PORT_STATUS
, GELIC_NET_PORT
, 0, 0,
1236 return 0; /* link down */
1238 if (v1
& GELIC_NET_LINK_UP
)
1246 static int gelic_net_nway_reset(struct net_device
*netdev
)
1248 if (netif_running(netdev
)) {
1249 gelic_net_stop(netdev
);
1250 gelic_net_open(netdev
);
1255 static u32
gelic_net_get_tx_csum(struct net_device
*netdev
)
1257 return (netdev
->features
& NETIF_F_IP_CSUM
) != 0;
1260 static int gelic_net_set_tx_csum(struct net_device
*netdev
, u32 data
)
1263 netdev
->features
|= NETIF_F_IP_CSUM
;
1265 netdev
->features
&= ~NETIF_F_IP_CSUM
;
1270 static u32
gelic_net_get_rx_csum(struct net_device
*netdev
)
1272 struct gelic_net_card
*card
= netdev_priv(netdev
);
1274 return card
->rx_csum
;
1277 static int gelic_net_set_rx_csum(struct net_device
*netdev
, u32 data
)
1279 struct gelic_net_card
*card
= netdev_priv(netdev
);
1281 card
->rx_csum
= data
;
1285 static struct ethtool_ops gelic_net_ethtool_ops
= {
1286 .get_drvinfo
= gelic_net_get_drvinfo
,
1287 .get_settings
= gelic_net_get_settings
,
1288 .get_link
= gelic_net_get_link
,
1289 .nway_reset
= gelic_net_nway_reset
,
1290 .get_tx_csum
= gelic_net_get_tx_csum
,
1291 .set_tx_csum
= gelic_net_set_tx_csum
,
1292 .get_rx_csum
= gelic_net_get_rx_csum
,
1293 .set_rx_csum
= gelic_net_set_rx_csum
,
1297 * gelic_net_tx_timeout_task - task scheduled by the watchdog timeout
1298 * function (to be called not under interrupt status)
1299 * @work: work is context of tx timout task
1301 * called as task when tx hangs, resets interface (if interface is up)
1303 static void gelic_net_tx_timeout_task(struct work_struct
*work
)
1305 struct gelic_net_card
*card
=
1306 container_of(work
, struct gelic_net_card
, tx_timeout_task
);
1307 struct net_device
*netdev
= card
->netdev
;
1309 dev_info(ctodev(card
), "%s:Timed out. Restarting... \n", __func__
);
1311 if (!(netdev
->flags
& IFF_UP
))
1314 netif_device_detach(netdev
);
1315 gelic_net_stop(netdev
);
1317 gelic_net_open(netdev
);
1318 netif_device_attach(netdev
);
1321 atomic_dec(&card
->tx_timeout_task_counter
);
1325 * gelic_net_tx_timeout - called when the tx timeout watchdog kicks in.
1326 * @netdev: interface device structure
1328 * called, if tx hangs. Schedules a task that resets the interface
1330 static void gelic_net_tx_timeout(struct net_device
*netdev
)
1332 struct gelic_net_card
*card
;
1334 card
= netdev_priv(netdev
);
1335 atomic_inc(&card
->tx_timeout_task_counter
);
1336 if (netdev
->flags
& IFF_UP
)
1337 schedule_work(&card
->tx_timeout_task
);
1339 atomic_dec(&card
->tx_timeout_task_counter
);
1343 * gelic_net_setup_netdev_ops - initialization of net_device operations
1344 * @netdev: net_device structure
1346 * fills out function pointers in the net_device structure
1348 static void gelic_net_setup_netdev_ops(struct net_device
*netdev
)
1350 netdev
->open
= &gelic_net_open
;
1351 netdev
->stop
= &gelic_net_stop
;
1352 netdev
->hard_start_xmit
= &gelic_net_xmit
;
1353 netdev
->set_multicast_list
= &gelic_net_set_multi
;
1354 netdev
->change_mtu
= &gelic_net_change_mtu
;
1356 netdev
->tx_timeout
= &gelic_net_tx_timeout
;
1357 netdev
->watchdog_timeo
= GELIC_NET_WATCHDOG_TIMEOUT
;
1358 netdev
->ethtool_ops
= &gelic_net_ethtool_ops
;
1362 * gelic_net_setup_netdev - initialization of net_device
1363 * @card: card structure
1365 * Returns 0 on success or <0 on failure
1367 * gelic_net_setup_netdev initializes the net_device structure
1369 static int gelic_net_setup_netdev(struct gelic_net_card
*card
)
1371 struct net_device
*netdev
= card
->netdev
;
1372 struct sockaddr addr
;
1377 SET_MODULE_OWNER(netdev
);
1378 SET_NETDEV_DEV(netdev
, &card
->dev
->core
);
1379 spin_lock_init(&card
->tx_dma_lock
);
1381 card
->rx_csum
= GELIC_NET_RX_CSUM_DEFAULT
;
1383 gelic_net_setup_netdev_ops(netdev
);
1385 netif_napi_add(netdev
, &card
->napi
,
1386 gelic_net_poll
, GELIC_NET_NAPI_WEIGHT
);
1388 netdev
->features
= NETIF_F_IP_CSUM
;
1390 status
= lv1_net_control(bus_id(card
), dev_id(card
),
1391 GELIC_NET_GET_MAC_ADDRESS
,
1393 if (status
|| !is_valid_ether_addr((u8
*)&v1
)) {
1394 dev_info(ctodev(card
),
1395 "%s:lv1_net_control GET_MAC_ADDR failed %d\n",
1400 memcpy(addr
.sa_data
, &v1
, ETH_ALEN
);
1401 memcpy(netdev
->dev_addr
, addr
.sa_data
, ETH_ALEN
);
1402 dev_info(ctodev(card
), "MAC addr %02x:%02x:%02x:%02x:%02x:%02x\n",
1403 netdev
->dev_addr
[0], netdev
->dev_addr
[1],
1404 netdev
->dev_addr
[2], netdev
->dev_addr
[3],
1405 netdev
->dev_addr
[4], netdev
->dev_addr
[5]);
1407 card
->vlan_index
= -1; /* no vlan */
1408 for (i
= 0; i
< GELIC_NET_VLAN_MAX
; i
++) {
1409 status
= lv1_net_control(bus_id(card
), dev_id(card
),
1410 GELIC_NET_GET_VLAN_ID
,
1411 i
+ 1, /* index; one based */
1413 if (status
== GELIC_NET_VLAN_NO_ENTRY
) {
1414 dev_dbg(ctodev(card
),
1415 "GELIC_VLAN_ID no entry:%d, VLAN disabled\n",
1417 card
->vlan_id
[i
] = 0;
1418 } else if (status
) {
1419 dev_dbg(ctodev(card
),
1420 "%s:GELIC_NET_VLAN_ID faild, status=%d\n",
1422 card
->vlan_id
[i
] = 0;
1424 card
->vlan_id
[i
] = (u32
)v1
;
1425 dev_dbg(ctodev(card
), "vlan_id:%d, %lx\n", i
, v1
);
1428 if (card
->vlan_id
[GELIC_NET_VLAN_WIRED
- 1])
1429 card
->vlan_index
= GELIC_NET_VLAN_WIRED
- 1;
1431 status
= register_netdev(netdev
);
1433 dev_err(ctodev(card
), "%s:Couldn't register net_device: %d\n",
1442 * gelic_net_alloc_card - allocates net_device and card structure
1444 * returns the card structure or NULL in case of errors
1446 * the card and net_device structures are linked to each other
1448 static struct gelic_net_card
*gelic_net_alloc_card(void)
1450 struct net_device
*netdev
;
1451 struct gelic_net_card
*card
;
1454 alloc_size
= sizeof (*card
) +
1455 sizeof (struct gelic_net_descr
) * GELIC_NET_RX_DESCRIPTORS
+
1456 sizeof (struct gelic_net_descr
) * GELIC_NET_TX_DESCRIPTORS
;
1458 * we assume private data is allocated 32 bytes (or more) aligned
1459 * so that gelic_net_descr should be 32 bytes aligned.
1460 * Current alloc_etherdev() does do it because NETDEV_ALIGN
1462 * check this assumption here.
1464 BUILD_BUG_ON(NETDEV_ALIGN
< 32);
1465 BUILD_BUG_ON(offsetof(struct gelic_net_card
, irq_status
) % 8);
1466 BUILD_BUG_ON(offsetof(struct gelic_net_card
, descr
) % 32);
1468 netdev
= alloc_etherdev(alloc_size
);
1472 card
= netdev_priv(netdev
);
1473 card
->netdev
= netdev
;
1474 INIT_WORK(&card
->tx_timeout_task
, gelic_net_tx_timeout_task
);
1475 init_waitqueue_head(&card
->waitq
);
1476 atomic_set(&card
->tx_timeout_task_counter
, 0);
1482 * ps3_gelic_driver_probe - add a device to the control of this driver
1484 static int ps3_gelic_driver_probe (struct ps3_system_bus_device
*dev
)
1486 struct gelic_net_card
*card
= gelic_net_alloc_card();
1490 dev_info(&dev
->core
, "gelic_net_alloc_card failed\n");
1492 goto fail_alloc_card
;
1495 ps3_system_bus_set_driver_data(dev
, card
);
1498 result
= ps3_open_hv_device(dev
);
1501 dev_dbg(&dev
->core
, "ps3_open_hv_device failed\n");
1505 result
= ps3_dma_region_create(dev
->d_region
);
1508 dev_dbg(&dev
->core
, "ps3_dma_region_create failed(%d)\n",
1510 BUG_ON("check region type");
1511 goto fail_dma_region
;
1514 result
= lv1_net_set_interrupt_status_indicator(bus_id(card
),
1516 ps3_mm_phys_to_lpar(__pa(&card
->irq_status
)),
1521 "lv1_net_set_interrupt_status_indicator failed: %s\n",
1522 ps3_result(result
));
1524 goto fail_status_indicator
;
1527 result
= gelic_net_setup_netdev(card
);
1530 dev_dbg(&dev
->core
, "%s:%d: ps3_dma_region_create failed: "
1531 "(%d)\n", __func__
, __LINE__
, result
);
1532 goto fail_setup_netdev
;
1538 lv1_net_set_interrupt_status_indicator(bus_id(card
),
1541 fail_status_indicator
:
1542 ps3_dma_region_free(dev
->d_region
);
1544 ps3_close_hv_device(dev
);
1546 ps3_system_bus_set_driver_data(dev
, NULL
);
1547 free_netdev(card
->netdev
);
1553 * ps3_gelic_driver_remove - remove a device from the control of this driver
1556 static int ps3_gelic_driver_remove (struct ps3_system_bus_device
*dev
)
1558 struct gelic_net_card
*card
= ps3_system_bus_get_driver_data(dev
);
1560 wait_event(card
->waitq
,
1561 atomic_read(&card
->tx_timeout_task_counter
) == 0);
1563 lv1_net_set_interrupt_status_indicator(bus_id(card
), dev_id(card
),
1566 unregister_netdev(card
->netdev
);
1567 free_netdev(card
->netdev
);
1569 ps3_system_bus_set_driver_data(dev
, NULL
);
1571 ps3_dma_region_free(dev
->d_region
);
1573 ps3_close_hv_device(dev
);
1578 static struct ps3_system_bus_driver ps3_gelic_driver
= {
1579 .match_id
= PS3_MATCH_ID_GELIC
,
1580 .probe
= ps3_gelic_driver_probe
,
1581 .remove
= ps3_gelic_driver_remove
,
1582 .shutdown
= ps3_gelic_driver_remove
,
1583 .core
.name
= "ps3_gelic_driver",
1584 .core
.owner
= THIS_MODULE
,
1587 static int __init
ps3_gelic_driver_init (void)
1589 return firmware_has_feature(FW_FEATURE_PS3_LV1
)
1590 ? ps3_system_bus_driver_register(&ps3_gelic_driver
)
1594 static void __exit
ps3_gelic_driver_exit (void)
1596 ps3_system_bus_driver_unregister(&ps3_gelic_driver
);
1599 module_init (ps3_gelic_driver_init
);
1600 module_exit (ps3_gelic_driver_exit
);
1602 MODULE_ALIAS(PS3_MODULE_ALIAS_GELIC
);