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"
49 #include "ps3_gelic_wireless.h"
51 #define DRV_NAME "Gelic Network Driver"
52 #define DRV_VERSION "2.0"
54 MODULE_AUTHOR("SCE Inc.");
55 MODULE_DESCRIPTION("Gelic Network driver");
56 MODULE_LICENSE("GPL");
59 static inline void gelic_card_enable_rxdmac(struct gelic_card *card);
60 static inline void gelic_card_disable_rxdmac(struct gelic_card *card);
61 static inline void gelic_card_disable_txdmac(struct gelic_card *card);
62 static inline void gelic_card_reset_chain(struct gelic_card *card,
63 struct gelic_descr_chain *chain,
64 struct gelic_descr *start_descr);
67 int gelic_card_set_irq_mask(struct gelic_card *card, u64 mask)
71 status = lv1_net_set_interrupt_mask(bus_id(card), dev_id(card),
74 dev_info(ctodev(card),
75 "%s failed %d\n", __func__, status);
79 static inline void gelic_card_rx_irq_on(struct gelic_card *card)
81 card->irq_mask |= GELIC_CARD_RXINT;
82 gelic_card_set_irq_mask(card, card->irq_mask);
84 static inline void gelic_card_rx_irq_off(struct gelic_card *card)
86 card->irq_mask &= ~GELIC_CARD_RXINT;
87 gelic_card_set_irq_mask(card, card->irq_mask);
90 static void gelic_card_get_ether_port_status(struct gelic_card *card,
94 struct net_device *ether_netdev;
96 lv1_net_control(bus_id(card), dev_id(card),
97 GELIC_LV1_GET_ETH_PORT_STATUS,
98 GELIC_LV1_VLAN_TX_ETHERNET, 0, 0,
99 &card->ether_port_status, &v2);
102 ether_netdev = card->netdev[GELIC_PORT_ETHERNET];
103 if (card->ether_port_status & GELIC_LV1_ETHER_LINK_UP)
104 netif_carrier_on(ether_netdev);
106 netif_carrier_off(ether_netdev);
110 void gelic_card_up(struct gelic_card *card)
112 pr_debug("%s: called\n", __func__);
113 mutex_lock(&card->updown_lock);
114 if (atomic_inc_return(&card->users) == 1) {
115 pr_debug("%s: real do\n", __func__);
117 gelic_card_set_irq_mask(card, card->irq_mask);
119 gelic_card_enable_rxdmac(card);
121 napi_enable(&card->napi);
123 mutex_unlock(&card->updown_lock);
124 pr_debug("%s: done\n", __func__);
127 void gelic_card_down(struct gelic_card *card)
130 pr_debug("%s: called\n", __func__);
131 mutex_lock(&card->updown_lock);
132 if (atomic_dec_if_positive(&card->users) == 0) {
133 pr_debug("%s: real do\n", __func__);
134 napi_disable(&card->napi);
136 * Disable irq. Wireless interrupts will
137 * be disabled later if any
139 mask = card->irq_mask & (GELIC_CARD_WLAN_EVENT_RECEIVED |
140 GELIC_CARD_WLAN_COMMAND_COMPLETED);
141 gelic_card_set_irq_mask(card, mask);
143 gelic_card_disable_rxdmac(card);
144 gelic_card_reset_chain(card, &card->rx_chain,
145 card->descr + GELIC_NET_TX_DESCRIPTORS);
147 gelic_card_disable_txdmac(card);
149 mutex_unlock(&card->updown_lock);
150 pr_debug("%s: done\n", __func__);
154 * gelic_descr_get_status -- returns the status of a descriptor
155 * @descr: descriptor to look at
157 * returns the status as in the dmac_cmd_status field of the descriptor
159 static enum gelic_descr_dma_status
160 gelic_descr_get_status(struct gelic_descr *descr)
162 return be32_to_cpu(descr->dmac_cmd_status) & GELIC_DESCR_DMA_STAT_MASK;
166 * gelic_descr_set_status -- sets the status of a descriptor
167 * @descr: descriptor to change
168 * @status: status to set in the descriptor
170 * changes the status to the specified value. Doesn't change other bits
173 static void gelic_descr_set_status(struct gelic_descr *descr,
174 enum gelic_descr_dma_status status)
176 descr->dmac_cmd_status = cpu_to_be32(status |
177 (be32_to_cpu(descr->dmac_cmd_status) &
178 ~GELIC_DESCR_DMA_STAT_MASK));
180 * dma_cmd_status field is used to indicate whether the descriptor
182 * Usually caller of this function wants to inform that to the
183 * hardware, so we assure here the hardware sees the change.
189 * gelic_card_free_chain - free descriptor chain
190 * @card: card structure
191 * @descr_in: address of desc
193 static void gelic_card_free_chain(struct gelic_card *card,
194 struct gelic_descr *descr_in)
196 struct gelic_descr *descr;
198 for (descr = descr_in; descr && descr->bus_addr; descr = descr->next) {
199 dma_unmap_single(ctodev(card), descr->bus_addr,
200 GELIC_DESCR_SIZE, DMA_BIDIRECTIONAL);
206 * gelic_card_init_chain - links descriptor chain
207 * @card: card structure
208 * @chain: address of chain
209 * @start_descr: address of descriptor array
210 * @no: number of descriptors
212 * we manage a circular list that mirrors the hardware structure,
213 * except that the hardware uses bus addresses.
215 * returns 0 on success, <0 on failure
217 static int gelic_card_init_chain(struct gelic_card *card,
218 struct gelic_descr_chain *chain,
219 struct gelic_descr *start_descr, int no)
222 struct gelic_descr *descr;
225 memset(descr, 0, sizeof(*descr) * no);
227 /* set up the hardware pointers in each descriptor */
228 for (i = 0; i < no; i++, descr++) {
229 gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE);
231 dma_map_single(ctodev(card), descr,
235 if (!descr->bus_addr)
238 descr->next = descr + 1;
239 descr->prev = descr - 1;
241 /* make them as ring */
242 (descr - 1)->next = start_descr;
243 start_descr->prev = (descr - 1);
245 /* chain bus addr of hw descriptor */
247 for (i = 0; i < no; i++, descr++) {
248 descr->next_descr_addr = cpu_to_be32(descr->next->bus_addr);
251 chain->head = start_descr;
252 chain->tail = start_descr;
254 /* do not chain last hw descriptor */
255 (descr - 1)->next_descr_addr = 0;
260 for (i--, descr--; 0 <= i; i--, descr--)
262 dma_unmap_single(ctodev(card), descr->bus_addr,
269 * gelic_card_reset_chain - reset status of a descriptor chain
270 * @card: card structure
271 * @chain: address of chain
272 * @start_descr: address of descriptor array
274 * Reset the status of dma descriptors to ready state
275 * and re-initialize the hardware chain for later use
277 static void gelic_card_reset_chain(struct gelic_card *card,
278 struct gelic_descr_chain *chain,
279 struct gelic_descr *start_descr)
281 struct gelic_descr *descr;
283 for (descr = start_descr; start_descr != descr->next; descr++) {
284 gelic_descr_set_status(descr, GELIC_DESCR_DMA_CARDOWNED);
285 descr->next_descr_addr = cpu_to_be32(descr->next->bus_addr);
288 chain->head = start_descr;
289 chain->tail = (descr - 1);
291 (descr - 1)->next_descr_addr = 0;
294 * gelic_descr_prepare_rx - reinitializes a rx descriptor
295 * @card: card structure
296 * @descr: descriptor to re-init
298 * return 0 on succes, <0 on failure
300 * allocates a new rx skb, iommu-maps it and attaches it to the descriptor.
301 * Activate the descriptor state-wise
303 static int gelic_descr_prepare_rx(struct gelic_card *card,
304 struct gelic_descr *descr)
307 unsigned int bufsize;
309 if (gelic_descr_get_status(descr) != GELIC_DESCR_DMA_NOT_IN_USE)
310 dev_info(ctodev(card), "%s: ERROR status \n", __func__);
311 /* we need to round up the buffer size to a multiple of 128 */
312 bufsize = ALIGN(GELIC_NET_MAX_MTU, GELIC_NET_RXBUF_ALIGN);
314 /* and we need to have it 128 byte aligned, therefore we allocate a
316 descr->skb = dev_alloc_skb(bufsize + GELIC_NET_RXBUF_ALIGN - 1);
318 descr->buf_addr = 0; /* tell DMAC don't touch memory */
319 dev_info(ctodev(card),
320 "%s:allocate skb failed !!\n", __func__);
323 descr->buf_size = cpu_to_be32(bufsize);
324 descr->dmac_cmd_status = 0;
325 descr->result_size = 0;
326 descr->valid_size = 0;
327 descr->data_error = 0;
329 offset = ((unsigned long)descr->skb->data) &
330 (GELIC_NET_RXBUF_ALIGN - 1);
332 skb_reserve(descr->skb, GELIC_NET_RXBUF_ALIGN - offset);
333 /* io-mmu-map the skb */
334 descr->buf_addr = cpu_to_be32(dma_map_single(ctodev(card),
338 if (!descr->buf_addr) {
339 dev_kfree_skb_any(descr->skb);
341 dev_info(ctodev(card),
342 "%s:Could not iommu-map rx buffer\n", __func__);
343 gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE);
346 gelic_descr_set_status(descr, GELIC_DESCR_DMA_CARDOWNED);
352 * gelic_card_release_rx_chain - free all skb of rx descr
353 * @card: card structure
356 static void gelic_card_release_rx_chain(struct gelic_card *card)
358 struct gelic_descr *descr = card->rx_chain.head;
362 dma_unmap_single(ctodev(card),
363 be32_to_cpu(descr->buf_addr),
367 dev_kfree_skb_any(descr->skb);
369 gelic_descr_set_status(descr,
370 GELIC_DESCR_DMA_NOT_IN_USE);
373 } while (descr != card->rx_chain.head);
377 * gelic_card_fill_rx_chain - fills descriptors/skbs in the rx chains
378 * @card: card structure
380 * fills all descriptors in the rx chain: allocates skbs
381 * and iommu-maps them.
382 * returns 0 on success, < 0 on failure
384 static int gelic_card_fill_rx_chain(struct gelic_card *card)
386 struct gelic_descr *descr = card->rx_chain.head;
391 ret = gelic_descr_prepare_rx(card, descr);
396 } while (descr != card->rx_chain.head);
400 gelic_card_release_rx_chain(card);
405 * gelic_card_alloc_rx_skbs - allocates rx skbs in rx descriptor chains
406 * @card: card structure
408 * returns 0 on success, < 0 on failure
410 static int gelic_card_alloc_rx_skbs(struct gelic_card *card)
412 struct gelic_descr_chain *chain;
414 chain = &card->rx_chain;
415 ret = gelic_card_fill_rx_chain(card);
416 chain->tail = card->rx_top->prev; /* point to the last */
421 * gelic_descr_release_tx - processes a used tx descriptor
422 * @card: card structure
423 * @descr: descriptor to release
425 * releases a used tx descriptor (unmapping, freeing of skb)
427 static void gelic_descr_release_tx(struct gelic_card *card,
428 struct gelic_descr *descr)
430 struct sk_buff *skb = descr->skb;
432 BUG_ON(!(be32_to_cpu(descr->data_status) & GELIC_DESCR_TX_TAIL));
434 dma_unmap_single(ctodev(card), be32_to_cpu(descr->buf_addr), skb->len,
436 dev_kfree_skb_any(skb);
440 descr->next_descr_addr = 0;
441 descr->result_size = 0;
442 descr->valid_size = 0;
443 descr->data_status = 0;
444 descr->data_error = 0;
447 /* set descr status */
448 gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE);
451 static void gelic_card_stop_queues(struct gelic_card *card)
453 netif_stop_queue(card->netdev[GELIC_PORT_ETHERNET]);
455 if (card->netdev[GELIC_PORT_WIRELESS])
456 netif_stop_queue(card->netdev[GELIC_PORT_WIRELESS]);
458 static void gelic_card_wake_queues(struct gelic_card *card)
460 netif_wake_queue(card->netdev[GELIC_PORT_ETHERNET]);
462 if (card->netdev[GELIC_PORT_WIRELESS])
463 netif_wake_queue(card->netdev[GELIC_PORT_WIRELESS]);
466 * gelic_card_release_tx_chain - processes sent tx descriptors
467 * @card: adapter structure
468 * @stop: net_stop sequence
470 * releases the tx descriptors that gelic has finished with
472 static void gelic_card_release_tx_chain(struct gelic_card *card, int stop)
474 struct gelic_descr_chain *tx_chain;
475 enum gelic_descr_dma_status status;
476 struct net_device *netdev;
479 for (tx_chain = &card->tx_chain;
480 tx_chain->head != tx_chain->tail && tx_chain->tail;
481 tx_chain->tail = tx_chain->tail->next) {
482 status = gelic_descr_get_status(tx_chain->tail);
483 netdev = tx_chain->tail->skb->dev;
485 case GELIC_DESCR_DMA_RESPONSE_ERROR:
486 case GELIC_DESCR_DMA_PROTECTION_ERROR:
487 case GELIC_DESCR_DMA_FORCE_END:
488 if (printk_ratelimit())
489 dev_info(ctodev(card),
490 "%s: forcing end of tx descriptor " \
493 netdev->stats.tx_dropped++;
496 case GELIC_DESCR_DMA_COMPLETE:
497 if (tx_chain->tail->skb) {
498 netdev->stats.tx_packets++;
499 netdev->stats.tx_bytes +=
500 tx_chain->tail->skb->len;
504 case GELIC_DESCR_DMA_CARDOWNED:
505 /* pending tx request */
507 /* any other value (== GELIC_DESCR_DMA_NOT_IN_USE) */
511 gelic_descr_release_tx(card, tx_chain->tail);
515 if (!stop && release)
516 gelic_card_wake_queues(card);
520 * gelic_net_set_multi - sets multicast addresses and promisc flags
521 * @netdev: interface device structure
523 * gelic_net_set_multi configures multicast addresses as needed for the
524 * netdev interface. It also sets up multicast, allmulti and promisc
525 * flags appropriately
527 void gelic_net_set_multi(struct net_device *netdev)
529 struct gelic_card *card = netdev_card(netdev);
530 struct dev_mc_list *mc;
536 /* clear all multicast address */
537 status = lv1_net_remove_multicast_address(bus_id(card), dev_id(card),
540 dev_err(ctodev(card),
541 "lv1_net_remove_multicast_address failed %d\n",
543 /* set broadcast address */
544 status = lv1_net_add_multicast_address(bus_id(card), dev_id(card),
545 GELIC_NET_BROADCAST_ADDR, 0);
547 dev_err(ctodev(card),
548 "lv1_net_add_multicast_address failed, %d\n",
551 if ((netdev->flags & IFF_ALLMULTI) ||
552 (netdev->mc_count > GELIC_NET_MC_COUNT_MAX)) {
553 status = lv1_net_add_multicast_address(bus_id(card),
557 dev_err(ctodev(card),
558 "lv1_net_add_multicast_address failed, %d\n",
563 /* set multicast addresses */
564 for (mc = netdev->mc_list; mc; mc = mc->next) {
567 for (i = 0; i < ETH_ALEN; i++) {
571 status = lv1_net_add_multicast_address(bus_id(card),
575 dev_err(ctodev(card),
576 "lv1_net_add_multicast_address failed, %d\n",
582 * gelic_card_enable_rxdmac - enables the receive DMA controller
583 * @card: card structure
585 * gelic_card_enable_rxdmac enables the DMA controller by setting RX_DMA_EN
586 * in the GDADMACCNTR register
588 static inline void gelic_card_enable_rxdmac(struct gelic_card *card)
593 if (gelic_descr_get_status(card->rx_chain.head) !=
594 GELIC_DESCR_DMA_CARDOWNED) {
595 printk(KERN_ERR "%s: status=%x\n", __func__,
596 be32_to_cpu(card->rx_chain.head->dmac_cmd_status));
597 printk(KERN_ERR "%s: nextphy=%x\n", __func__,
598 be32_to_cpu(card->rx_chain.head->next_descr_addr));
599 printk(KERN_ERR "%s: head=%p\n", __func__,
600 card->rx_chain.head);
603 status = lv1_net_start_rx_dma(bus_id(card), dev_id(card),
604 card->rx_chain.head->bus_addr, 0);
606 dev_info(ctodev(card),
607 "lv1_net_start_rx_dma failed, status=%d\n", status);
611 * gelic_card_disable_rxdmac - disables the receive DMA controller
612 * @card: card structure
614 * gelic_card_disable_rxdmac terminates processing on the DMA controller by
615 * turing off DMA and issueing a force end
617 static inline void gelic_card_disable_rxdmac(struct gelic_card *card)
621 /* this hvc blocks until the DMA in progress really stopped */
622 status = lv1_net_stop_rx_dma(bus_id(card), dev_id(card), 0);
624 dev_err(ctodev(card),
625 "lv1_net_stop_rx_dma faild, %d\n", status);
629 * gelic_card_disable_txdmac - disables the transmit DMA controller
630 * @card: card structure
632 * gelic_card_disable_txdmac terminates processing on the DMA controller by
633 * turing off DMA and issueing a force end
635 static inline void gelic_card_disable_txdmac(struct gelic_card *card)
639 /* this hvc blocks until the DMA in progress really stopped */
640 status = lv1_net_stop_tx_dma(bus_id(card), dev_id(card), 0);
642 dev_err(ctodev(card),
643 "lv1_net_stop_tx_dma faild, status=%d\n", status);
647 * gelic_net_stop - called upon ifconfig down
648 * @netdev: interface device structure
652 int gelic_net_stop(struct net_device *netdev)
654 struct gelic_card *card;
656 pr_debug("%s: start\n", __func__);
658 netif_stop_queue(netdev);
659 netif_carrier_off(netdev);
661 card = netdev_card(netdev);
662 gelic_card_down(card);
664 pr_debug("%s: done\n", __func__);
669 * gelic_card_get_next_tx_descr - returns the next available tx descriptor
670 * @card: device structure to get descriptor from
672 * returns the address of the next descriptor, or NULL if not available.
674 static struct gelic_descr *
675 gelic_card_get_next_tx_descr(struct gelic_card *card)
677 if (!card->tx_chain.head)
679 /* see if the next descriptor is free */
680 if (card->tx_chain.tail != card->tx_chain.head->next &&
681 gelic_descr_get_status(card->tx_chain.head) ==
682 GELIC_DESCR_DMA_NOT_IN_USE)
683 return card->tx_chain.head;
690 * gelic_net_set_txdescr_cmdstat - sets the tx descriptor command field
691 * @descr: descriptor structure to fill out
692 * @skb: packet to consider
694 * fills out the command and status field of the descriptor structure,
695 * depending on hardware checksum settings. This function assumes a wmb()
696 * has executed before.
698 static void gelic_descr_set_tx_cmdstat(struct gelic_descr *descr,
701 if (skb->ip_summed != CHECKSUM_PARTIAL)
702 descr->dmac_cmd_status =
703 cpu_to_be32(GELIC_DESCR_DMA_CMD_NO_CHKSUM |
704 GELIC_DESCR_TX_DMA_FRAME_TAIL);
707 * if yes: tcp? udp? */
708 if (skb->protocol == htons(ETH_P_IP)) {
709 if (ip_hdr(skb)->protocol == IPPROTO_TCP)
710 descr->dmac_cmd_status =
711 cpu_to_be32(GELIC_DESCR_DMA_CMD_TCP_CHKSUM |
712 GELIC_DESCR_TX_DMA_FRAME_TAIL);
714 else if (ip_hdr(skb)->protocol == IPPROTO_UDP)
715 descr->dmac_cmd_status =
716 cpu_to_be32(GELIC_DESCR_DMA_CMD_UDP_CHKSUM |
717 GELIC_DESCR_TX_DMA_FRAME_TAIL);
719 * the stack should checksum non-tcp and non-udp
720 * packets on his own: NETIF_F_IP_CSUM
722 descr->dmac_cmd_status =
723 cpu_to_be32(GELIC_DESCR_DMA_CMD_NO_CHKSUM |
724 GELIC_DESCR_TX_DMA_FRAME_TAIL);
729 static inline struct sk_buff *gelic_put_vlan_tag(struct sk_buff *skb,
732 struct vlan_ethhdr *veth;
733 static unsigned int c;
735 if (skb_headroom(skb) < VLAN_HLEN) {
736 struct sk_buff *sk_tmp = skb;
737 pr_debug("%s: hd=%d c=%ud\n", __func__, skb_headroom(skb), c);
738 skb = skb_realloc_headroom(sk_tmp, VLAN_HLEN);
741 dev_kfree_skb_any(sk_tmp);
743 veth = (struct vlan_ethhdr *)skb_push(skb, VLAN_HLEN);
745 /* Move the mac addresses to the top of buffer */
746 memmove(skb->data, skb->data + VLAN_HLEN, 2 * ETH_ALEN);
748 veth->h_vlan_proto = cpu_to_be16(ETH_P_8021Q);
749 veth->h_vlan_TCI = htons(tag);
755 * gelic_descr_prepare_tx - setup a descriptor for sending packets
756 * @card: card structure
757 * @descr: descriptor structure
758 * @skb: packet to use
760 * returns 0 on success, <0 on failure.
763 static int gelic_descr_prepare_tx(struct gelic_card *card,
764 struct gelic_descr *descr,
769 if (card->vlan_required) {
770 struct sk_buff *skb_tmp;
771 enum gelic_port_type type;
773 type = netdev_port(skb->dev)->type;
774 skb_tmp = gelic_put_vlan_tag(skb,
775 card->vlan[type].tx);
781 buf = dma_map_single(ctodev(card), skb->data, skb->len, DMA_TO_DEVICE);
784 dev_err(ctodev(card),
785 "dma map 2 failed (%p, %i). Dropping packet\n",
786 skb->data, skb->len);
790 descr->buf_addr = cpu_to_be32(buf);
791 descr->buf_size = cpu_to_be32(skb->len);
793 descr->data_status = 0;
794 descr->next_descr_addr = 0; /* terminate hw descr */
795 gelic_descr_set_tx_cmdstat(descr, skb);
797 /* bump free descriptor pointer */
798 card->tx_chain.head = descr->next;
803 * gelic_card_kick_txdma - enables TX DMA processing
804 * @card: card structure
805 * @descr: descriptor address to enable TX processing at
808 static int gelic_card_kick_txdma(struct gelic_card *card,
809 struct gelic_descr *descr)
813 if (card->tx_dma_progress)
816 if (gelic_descr_get_status(descr) == GELIC_DESCR_DMA_CARDOWNED) {
817 card->tx_dma_progress = 1;
818 status = lv1_net_start_tx_dma(bus_id(card), dev_id(card),
821 dev_info(ctodev(card), "lv1_net_start_txdma failed," \
822 "status=%d\n", status);
828 * gelic_net_xmit - transmits a frame over the device
829 * @skb: packet to send out
830 * @netdev: interface device structure
832 * returns 0 on success, <0 on failure
834 int gelic_net_xmit(struct sk_buff *skb, struct net_device *netdev)
836 struct gelic_card *card = netdev_card(netdev);
837 struct gelic_descr *descr;
841 spin_lock_irqsave(&card->tx_lock, flags);
843 gelic_card_release_tx_chain(card, 0);
845 descr = gelic_card_get_next_tx_descr(card);
848 * no more descriptors free
850 gelic_card_stop_queues(card);
851 spin_unlock_irqrestore(&card->tx_lock, flags);
852 return NETDEV_TX_BUSY;
855 result = gelic_descr_prepare_tx(card, descr, skb);
858 * DMA map failed. As chanses are that failure
859 * would continue, just release skb and return
861 netdev->stats.tx_dropped++;
862 dev_kfree_skb_any(skb);
863 spin_unlock_irqrestore(&card->tx_lock, flags);
867 * link this prepared descriptor to previous one
868 * to achieve high performance
870 descr->prev->next_descr_addr = cpu_to_be32(descr->bus_addr);
872 * as hardware descriptor is modified in the above lines,
873 * ensure that the hardware sees it
876 if (gelic_card_kick_txdma(card, descr)) {
879 * release descriptors which were just prepared
881 netdev->stats.tx_dropped++;
882 gelic_descr_release_tx(card, descr);
883 gelic_descr_release_tx(card, descr->next);
884 card->tx_chain.tail = descr->next->next;
885 dev_info(ctodev(card), "%s: kick failure\n", __func__);
887 /* OK, DMA started/reserved */
888 netdev->trans_start = jiffies;
891 spin_unlock_irqrestore(&card->tx_lock, flags);
896 * gelic_net_pass_skb_up - takes an skb from a descriptor and passes it on
897 * @descr: descriptor to process
898 * @card: card structure
899 * @netdev: net_device structure to be passed packet
901 * iommu-unmaps the skb, fills out skb structure and passes the data to the
902 * stack. The descriptor state is not changed.
904 static void gelic_net_pass_skb_up(struct gelic_descr *descr,
905 struct gelic_card *card,
906 struct net_device *netdev)
909 struct sk_buff *skb = descr->skb;
910 u32 data_status, data_error;
912 data_status = be32_to_cpu(descr->data_status);
913 data_error = be32_to_cpu(descr->data_error);
914 /* unmap skb buffer */
915 dma_unmap_single(ctodev(card), be32_to_cpu(descr->buf_addr),
919 skb_put(skb, be32_to_cpu(descr->valid_size)?
920 be32_to_cpu(descr->valid_size) :
921 be32_to_cpu(descr->result_size));
922 if (!descr->valid_size)
923 dev_info(ctodev(card), "buffer full %x %x %x\n",
924 be32_to_cpu(descr->result_size),
925 be32_to_cpu(descr->buf_size),
926 be32_to_cpu(descr->dmac_cmd_status));
930 * the card put 2 bytes vlan tag in front
931 * of the ethernet frame
934 skb->protocol = eth_type_trans(skb, netdev);
936 /* checksum offload */
938 if ((data_status & GELIC_DESCR_DATA_STATUS_CHK_MASK) &&
939 (!(data_error & GELIC_DESCR_DATA_ERROR_CHK_MASK)))
940 skb->ip_summed = CHECKSUM_UNNECESSARY;
942 skb->ip_summed = CHECKSUM_NONE;
944 skb->ip_summed = CHECKSUM_NONE;
946 /* update netdevice statistics */
947 netdev->stats.rx_packets++;
948 netdev->stats.rx_bytes += skb->len;
950 /* pass skb up to stack */
951 netif_receive_skb(skb);
955 * gelic_card_decode_one_descr - processes an rx descriptor
956 * @card: card structure
958 * returns 1 if a packet has been sent to the stack, otherwise 0
960 * processes an rx descriptor by iommu-unmapping the data buffer and passing
961 * the packet up to the stack
963 static int gelic_card_decode_one_descr(struct gelic_card *card)
965 enum gelic_descr_dma_status status;
966 struct gelic_descr_chain *chain = &card->rx_chain;
967 struct gelic_descr *descr = chain->head;
968 struct net_device *netdev = NULL;
969 int dmac_chain_ended;
971 status = gelic_descr_get_status(descr);
972 /* is this descriptor terminated with next_descr == NULL? */
974 be32_to_cpu(descr->dmac_cmd_status) &
975 GELIC_DESCR_RX_DMA_CHAIN_END;
977 if (status == GELIC_DESCR_DMA_CARDOWNED)
980 if (status == GELIC_DESCR_DMA_NOT_IN_USE) {
981 dev_dbg(ctodev(card), "dormant descr? %p\n", descr);
985 /* netdevice select */
986 if (card->vlan_required) {
989 vid = *(u16 *)(descr->skb->data) & VLAN_VID_MASK;
990 for (i = 0; i < GELIC_PORT_MAX; i++) {
991 if (card->vlan[i].rx == vid) {
992 netdev = card->netdev[i];
996 if (GELIC_PORT_MAX <= i) {
997 pr_info("%s: unknown packet vid=%x\n", __func__, vid);
1001 netdev = card->netdev[GELIC_PORT_ETHERNET];
1003 if ((status == GELIC_DESCR_DMA_RESPONSE_ERROR) ||
1004 (status == GELIC_DESCR_DMA_PROTECTION_ERROR) ||
1005 (status == GELIC_DESCR_DMA_FORCE_END)) {
1006 dev_info(ctodev(card), "dropping RX descriptor with state %x\n",
1008 netdev->stats.rx_dropped++;
1012 if (status == GELIC_DESCR_DMA_BUFFER_FULL) {
1014 * Buffer full would occur if and only if
1015 * the frame length was longer than the size of this
1016 * descriptor's buffer. If the frame length was equal
1017 * to or shorter than buffer'size, FRAME_END condition
1019 * Anyway this frame was longer than the MTU,
1022 dev_info(ctodev(card), "overlength frame\n");
1026 * descriptoers any other than FRAME_END here should
1027 * be treated as error.
1029 if (status != GELIC_DESCR_DMA_FRAME_END) {
1030 dev_dbg(ctodev(card), "RX descriptor with state %x\n",
1035 /* ok, we've got a packet in descr */
1036 gelic_net_pass_skb_up(descr, card, netdev);
1039 * So that always DMAC can see the end
1040 * of the descriptor chain to avoid
1041 * from unwanted DMAC overrun.
1043 descr->next_descr_addr = 0;
1045 /* change the descriptor state: */
1046 gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE);
1049 * this call can fail, but for now, just leave this
1050 * decriptor without skb
1052 gelic_descr_prepare_rx(card, descr);
1054 chain->tail = descr;
1055 chain->head = descr->next;
1058 * Set this descriptor the end of the chain.
1060 descr->prev->next_descr_addr = cpu_to_be32(descr->bus_addr);
1063 * If dmac chain was met, DMAC stopped.
1066 if (dmac_chain_ended) {
1067 card->rx_dma_restart_required = 1;
1068 dev_dbg(ctodev(card), "reenable rx dma scheduled\n");
1075 * gelic_net_poll - NAPI poll function called by the stack to return packets
1076 * @napi: napi structure
1077 * @budget: number of packets we can pass to the stack at most
1079 * returns the number of the processed packets
1082 static int gelic_net_poll(struct napi_struct *napi, int budget)
1084 struct gelic_card *card = container_of(napi, struct gelic_card, napi);
1085 int packets_done = 0;
1087 while (packets_done < budget) {
1088 if (!gelic_card_decode_one_descr(card))
1094 if (packets_done < budget) {
1095 napi_complete(napi);
1096 gelic_card_rx_irq_on(card);
1098 return packets_done;
1101 * gelic_net_change_mtu - changes the MTU of an interface
1102 * @netdev: interface device structure
1103 * @new_mtu: new MTU value
1105 * returns 0 on success, <0 on failure
1107 int gelic_net_change_mtu(struct net_device *netdev, int new_mtu)
1109 /* no need to re-alloc skbs or so -- the max mtu is about 2.3k
1110 * and mtu is outbound only anyway */
1111 if ((new_mtu < GELIC_NET_MIN_MTU) ||
1112 (new_mtu > GELIC_NET_MAX_MTU)) {
1115 netdev->mtu = new_mtu;
1120 * gelic_card_interrupt - event handler for gelic_net
1122 static irqreturn_t gelic_card_interrupt(int irq, void *ptr)
1124 unsigned long flags;
1125 struct gelic_card *card = ptr;
1128 status = card->irq_status;
1133 status &= card->irq_mask;
1135 if (card->rx_dma_restart_required) {
1136 card->rx_dma_restart_required = 0;
1137 gelic_card_enable_rxdmac(card);
1140 if (status & GELIC_CARD_RXINT) {
1141 gelic_card_rx_irq_off(card);
1142 napi_schedule(&card->napi);
1145 if (status & GELIC_CARD_TXINT) {
1146 spin_lock_irqsave(&card->tx_lock, flags);
1147 card->tx_dma_progress = 0;
1148 gelic_card_release_tx_chain(card, 0);
1149 /* kick outstanding tx descriptor if any */
1150 gelic_card_kick_txdma(card, card->tx_chain.tail);
1151 spin_unlock_irqrestore(&card->tx_lock, flags);
1154 /* ether port status changed */
1155 if (status & GELIC_CARD_PORT_STATUS_CHANGED)
1156 gelic_card_get_ether_port_status(card, 1);
1158 #ifdef CONFIG_GELIC_WIRELESS
1159 if (status & (GELIC_CARD_WLAN_EVENT_RECEIVED |
1160 GELIC_CARD_WLAN_COMMAND_COMPLETED))
1161 gelic_wl_interrupt(card->netdev[GELIC_PORT_WIRELESS], status);
1167 #ifdef CONFIG_NET_POLL_CONTROLLER
1169 * gelic_net_poll_controller - artificial interrupt for netconsole etc.
1170 * @netdev: interface device structure
1172 * see Documentation/networking/netconsole.txt
1174 void gelic_net_poll_controller(struct net_device *netdev)
1176 struct gelic_card *card = netdev_card(netdev);
1178 gelic_card_set_irq_mask(card, 0);
1179 gelic_card_interrupt(netdev->irq, netdev);
1180 gelic_card_set_irq_mask(card, card->irq_mask);
1182 #endif /* CONFIG_NET_POLL_CONTROLLER */
1185 * gelic_net_open - called upon ifonfig up
1186 * @netdev: interface device structure
1188 * returns 0 on success, <0 on failure
1190 * gelic_net_open allocates all the descriptors and memory needed for
1191 * operation, sets up multicast list and enables interrupts
1193 int gelic_net_open(struct net_device *netdev)
1195 struct gelic_card *card = netdev_card(netdev);
1197 dev_dbg(ctodev(card), " -> %s %p\n", __func__, netdev);
1199 gelic_card_up(card);
1201 netif_start_queue(netdev);
1202 gelic_card_get_ether_port_status(card, 1);
1204 dev_dbg(ctodev(card), " <- %s\n", __func__);
1208 void gelic_net_get_drvinfo(struct net_device *netdev,
1209 struct ethtool_drvinfo *info)
1211 strncpy(info->driver, DRV_NAME, sizeof(info->driver) - 1);
1212 strncpy(info->version, DRV_VERSION, sizeof(info->version) - 1);
1215 static int gelic_ether_get_settings(struct net_device *netdev,
1216 struct ethtool_cmd *cmd)
1218 struct gelic_card *card = netdev_card(netdev);
1220 gelic_card_get_ether_port_status(card, 0);
1222 if (card->ether_port_status & GELIC_LV1_ETHER_FULL_DUPLEX)
1223 cmd->duplex = DUPLEX_FULL;
1225 cmd->duplex = DUPLEX_HALF;
1227 switch (card->ether_port_status & GELIC_LV1_ETHER_SPEED_MASK) {
1228 case GELIC_LV1_ETHER_SPEED_10:
1229 cmd->speed = SPEED_10;
1231 case GELIC_LV1_ETHER_SPEED_100:
1232 cmd->speed = SPEED_100;
1234 case GELIC_LV1_ETHER_SPEED_1000:
1235 cmd->speed = SPEED_1000;
1238 pr_info("%s: speed unknown\n", __func__);
1239 cmd->speed = SPEED_10;
1243 cmd->supported = SUPPORTED_TP | SUPPORTED_Autoneg |
1244 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
1245 SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
1246 SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full;
1247 cmd->advertising = cmd->supported;
1248 cmd->autoneg = AUTONEG_ENABLE; /* always enabled */
1249 cmd->port = PORT_TP;
1254 u32 gelic_net_get_rx_csum(struct net_device *netdev)
1256 struct gelic_card *card = netdev_card(netdev);
1258 return card->rx_csum;
1261 int gelic_net_set_rx_csum(struct net_device *netdev, u32 data)
1263 struct gelic_card *card = netdev_card(netdev);
1265 card->rx_csum = data;
1269 static void gelic_net_get_wol(struct net_device *netdev,
1270 struct ethtool_wolinfo *wol)
1272 if (0 <= ps3_compare_firmware_version(2, 2, 0))
1273 wol->supported = WAKE_MAGIC;
1277 wol->wolopts = ps3_sys_manager_get_wol() ? wol->supported : 0;
1278 memset(&wol->sopass, 0, sizeof(wol->sopass));
1280 static int gelic_net_set_wol(struct net_device *netdev,
1281 struct ethtool_wolinfo *wol)
1284 struct gelic_card *card;
1287 if (ps3_compare_firmware_version(2, 2, 0) < 0 ||
1288 !capable(CAP_NET_ADMIN))
1291 if (wol->wolopts & ~WAKE_MAGIC)
1294 card = netdev_card(netdev);
1295 if (wol->wolopts & WAKE_MAGIC) {
1296 status = lv1_net_control(bus_id(card), dev_id(card),
1298 GELIC_LV1_WOL_MAGIC_PACKET,
1299 0, GELIC_LV1_WOL_MP_ENABLE,
1302 pr_info("%s: enabling WOL failed %d\n", __func__,
1307 status = lv1_net_control(bus_id(card), dev_id(card),
1309 GELIC_LV1_WOL_ADD_MATCH_ADDR,
1310 0, GELIC_LV1_WOL_MATCH_ALL,
1313 ps3_sys_manager_set_wol(1);
1315 pr_info("%s: enabling WOL filter failed %d\n",
1320 status = lv1_net_control(bus_id(card), dev_id(card),
1322 GELIC_LV1_WOL_MAGIC_PACKET,
1323 0, GELIC_LV1_WOL_MP_DISABLE,
1326 pr_info("%s: disabling WOL failed %d\n", __func__,
1331 status = lv1_net_control(bus_id(card), dev_id(card),
1333 GELIC_LV1_WOL_DELETE_MATCH_ADDR,
1334 0, GELIC_LV1_WOL_MATCH_ALL,
1337 ps3_sys_manager_set_wol(0);
1339 pr_info("%s: removing WOL filter failed %d\n",
1348 static struct ethtool_ops gelic_ether_ethtool_ops = {
1349 .get_drvinfo = gelic_net_get_drvinfo,
1350 .get_settings = gelic_ether_get_settings,
1351 .get_link = ethtool_op_get_link,
1352 .get_tx_csum = ethtool_op_get_tx_csum,
1353 .set_tx_csum = ethtool_op_set_tx_csum,
1354 .get_rx_csum = gelic_net_get_rx_csum,
1355 .set_rx_csum = gelic_net_set_rx_csum,
1356 .get_wol = gelic_net_get_wol,
1357 .set_wol = gelic_net_set_wol,
1361 * gelic_net_tx_timeout_task - task scheduled by the watchdog timeout
1362 * function (to be called not under interrupt status)
1363 * @work: work is context of tx timout task
1365 * called as task when tx hangs, resets interface (if interface is up)
1367 static void gelic_net_tx_timeout_task(struct work_struct *work)
1369 struct gelic_card *card =
1370 container_of(work, struct gelic_card, tx_timeout_task);
1371 struct net_device *netdev = card->netdev[GELIC_PORT_ETHERNET];
1373 dev_info(ctodev(card), "%s:Timed out. Restarting... \n", __func__);
1375 if (!(netdev->flags & IFF_UP))
1378 netif_device_detach(netdev);
1379 gelic_net_stop(netdev);
1381 gelic_net_open(netdev);
1382 netif_device_attach(netdev);
1385 atomic_dec(&card->tx_timeout_task_counter);
1389 * gelic_net_tx_timeout - called when the tx timeout watchdog kicks in.
1390 * @netdev: interface device structure
1392 * called, if tx hangs. Schedules a task that resets the interface
1394 void gelic_net_tx_timeout(struct net_device *netdev)
1396 struct gelic_card *card;
1398 card = netdev_card(netdev);
1399 atomic_inc(&card->tx_timeout_task_counter);
1400 if (netdev->flags & IFF_UP)
1401 schedule_work(&card->tx_timeout_task);
1403 atomic_dec(&card->tx_timeout_task_counter);
1406 static const struct net_device_ops gelic_netdevice_ops = {
1407 .ndo_open = gelic_net_open,
1408 .ndo_stop = gelic_net_stop,
1409 .ndo_start_xmit = gelic_net_xmit,
1410 .ndo_set_multicast_list = gelic_net_set_multi,
1411 .ndo_change_mtu = gelic_net_change_mtu,
1412 .ndo_tx_timeout = gelic_net_tx_timeout,
1413 .ndo_validate_addr = eth_validate_addr,
1414 #ifdef CONFIG_NET_POLL_CONTROLLER
1415 .ndo_poll_controller = gelic_net_poll_controller,
1420 * gelic_ether_setup_netdev_ops - initialization of net_device operations
1421 * @netdev: net_device structure
1423 * fills out function pointers in the net_device structure
1425 static void gelic_ether_setup_netdev_ops(struct net_device *netdev,
1426 struct napi_struct *napi)
1428 netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
1430 netif_napi_add(netdev, napi,
1431 gelic_net_poll, GELIC_NET_NAPI_WEIGHT);
1432 netdev->ethtool_ops = &gelic_ether_ethtool_ops;
1433 netdev->netdev_ops = &gelic_netdevice_ops;
1437 * gelic_ether_setup_netdev - initialization of net_device
1438 * @netdev: net_device structure
1439 * @card: card structure
1441 * Returns 0 on success or <0 on failure
1443 * gelic_ether_setup_netdev initializes the net_device structure
1446 int gelic_net_setup_netdev(struct net_device *netdev, struct gelic_card *card)
1451 netdev->features = NETIF_F_IP_CSUM;
1453 status = lv1_net_control(bus_id(card), dev_id(card),
1454 GELIC_LV1_GET_MAC_ADDRESS,
1457 if (status || !is_valid_ether_addr((u8 *)&v1)) {
1458 dev_info(ctodev(card),
1459 "%s:lv1_net_control GET_MAC_ADDR failed %d\n",
1463 memcpy(netdev->dev_addr, &v1, ETH_ALEN);
1465 if (card->vlan_required) {
1466 netdev->hard_header_len += VLAN_HLEN;
1468 * As vlan is internally used,
1469 * we can not receive vlan packets
1471 netdev->features |= NETIF_F_VLAN_CHALLENGED;
1474 status = register_netdev(netdev);
1476 dev_err(ctodev(card), "%s:Couldn't register %s %d\n",
1477 __func__, netdev->name, status);
1480 dev_info(ctodev(card), "%s: MAC addr %pM\n",
1481 netdev->name, netdev->dev_addr);
1487 * gelic_alloc_card_net - allocates net_device and card structure
1489 * returns the card structure or NULL in case of errors
1491 * the card and net_device structures are linked to each other
1493 #define GELIC_ALIGN (32)
1494 static struct gelic_card *gelic_alloc_card_net(struct net_device **netdev)
1496 struct gelic_card *card;
1497 struct gelic_port *port;
1501 * gelic requires dma descriptor is 32 bytes aligned and
1502 * the hypervisor requires irq_status is 8 bytes aligned.
1504 BUILD_BUG_ON(offsetof(struct gelic_card, irq_status) % 8);
1505 BUILD_BUG_ON(offsetof(struct gelic_card, descr) % 32);
1507 sizeof(struct gelic_card) +
1508 sizeof(struct gelic_descr) * GELIC_NET_RX_DESCRIPTORS +
1509 sizeof(struct gelic_descr) * GELIC_NET_TX_DESCRIPTORS +
1512 p = kzalloc(alloc_size, GFP_KERNEL);
1515 card = PTR_ALIGN(p, GELIC_ALIGN);
1521 *netdev = alloc_etherdev(sizeof(struct gelic_port));
1523 kfree(card->unalign);
1526 port = netdev_priv(*netdev);
1529 port->netdev = *netdev;
1531 port->type = GELIC_PORT_ETHERNET;
1534 card->netdev[GELIC_PORT_ETHERNET] = *netdev;
1536 INIT_WORK(&card->tx_timeout_task, gelic_net_tx_timeout_task);
1537 init_waitqueue_head(&card->waitq);
1538 atomic_set(&card->tx_timeout_task_counter, 0);
1539 mutex_init(&card->updown_lock);
1540 atomic_set(&card->users, 0);
1545 static void gelic_card_get_vlan_info(struct gelic_card *card)
1554 [GELIC_PORT_ETHERNET] = {
1555 .tx = GELIC_LV1_VLAN_TX_ETHERNET,
1556 .rx = GELIC_LV1_VLAN_RX_ETHERNET
1558 [GELIC_PORT_WIRELESS] = {
1559 .tx = GELIC_LV1_VLAN_TX_WIRELESS,
1560 .rx = GELIC_LV1_VLAN_RX_WIRELESS
1564 for (i = 0; i < ARRAY_SIZE(vlan_id_ix); i++) {
1566 status = lv1_net_control(bus_id(card), dev_id(card),
1567 GELIC_LV1_GET_VLAN_ID,
1570 if (status || !v1) {
1571 if (status != LV1_NO_ENTRY)
1572 dev_dbg(ctodev(card),
1573 "get vlan id for tx(%d) failed(%d)\n",
1574 vlan_id_ix[i].tx, status);
1575 card->vlan[i].tx = 0;
1576 card->vlan[i].rx = 0;
1579 card->vlan[i].tx = (u16)v1;
1582 status = lv1_net_control(bus_id(card), dev_id(card),
1583 GELIC_LV1_GET_VLAN_ID,
1586 if (status || !v1) {
1587 if (status != LV1_NO_ENTRY)
1588 dev_info(ctodev(card),
1589 "get vlan id for rx(%d) failed(%d)\n",
1590 vlan_id_ix[i].rx, status);
1591 card->vlan[i].tx = 0;
1592 card->vlan[i].rx = 0;
1595 card->vlan[i].rx = (u16)v1;
1597 dev_dbg(ctodev(card), "vlan_id[%d] tx=%02x rx=%02x\n",
1598 i, card->vlan[i].tx, card->vlan[i].rx);
1601 if (card->vlan[GELIC_PORT_ETHERNET].tx) {
1602 BUG_ON(!card->vlan[GELIC_PORT_WIRELESS].tx);
1603 card->vlan_required = 1;
1605 card->vlan_required = 0;
1607 /* check wirelss capable firmware */
1608 if (ps3_compare_firmware_version(1, 6, 0) < 0) {
1609 card->vlan[GELIC_PORT_WIRELESS].tx = 0;
1610 card->vlan[GELIC_PORT_WIRELESS].rx = 0;
1613 dev_info(ctodev(card), "internal vlan %s\n",
1614 card->vlan_required? "enabled" : "disabled");
1617 * ps3_gelic_driver_probe - add a device to the control of this driver
1619 static int ps3_gelic_driver_probe(struct ps3_system_bus_device *dev)
1621 struct gelic_card *card;
1622 struct net_device *netdev;
1625 pr_debug("%s: called\n", __func__);
1626 result = ps3_open_hv_device(dev);
1629 dev_dbg(&dev->core, "%s:ps3_open_hv_device failed\n",
1634 result = ps3_dma_region_create(dev->d_region);
1637 dev_dbg(&dev->core, "%s:ps3_dma_region_create failed(%d)\n",
1639 BUG_ON("check region type");
1640 goto fail_dma_region;
1643 /* alloc card/netdevice */
1644 card = gelic_alloc_card_net(&netdev);
1646 dev_info(&dev->core, "%s:gelic_net_alloc_card failed\n",
1649 goto fail_alloc_card;
1651 ps3_system_bus_set_driver_data(dev, card);
1654 /* get internal vlan info */
1655 gelic_card_get_vlan_info(card);
1657 /* setup interrupt */
1658 result = lv1_net_set_interrupt_status_indicator(bus_id(card),
1660 ps3_mm_phys_to_lpar(__pa(&card->irq_status)),
1665 "%s:set_interrupt_status_indicator failed: %s\n",
1666 __func__, ps3_result(result));
1668 goto fail_status_indicator;
1671 result = ps3_sb_event_receive_port_setup(dev, PS3_BINDING_CPU_ANY,
1675 dev_info(ctodev(card),
1676 "%s:gelic_net_open_device failed (%d)\n",
1679 goto fail_alloc_irq;
1681 result = request_irq(card->irq, gelic_card_interrupt,
1682 IRQF_DISABLED, netdev->name, card);
1685 dev_info(ctodev(card), "%s:request_irq failed (%d)\n",
1687 goto fail_request_irq;
1690 /* setup card structure */
1691 card->irq_mask = GELIC_CARD_RXINT | GELIC_CARD_TXINT |
1692 GELIC_CARD_PORT_STATUS_CHANGED;
1693 card->rx_csum = GELIC_CARD_RX_CSUM_DEFAULT;
1696 if (gelic_card_init_chain(card, &card->tx_chain,
1697 card->descr, GELIC_NET_TX_DESCRIPTORS))
1699 if (gelic_card_init_chain(card, &card->rx_chain,
1700 card->descr + GELIC_NET_TX_DESCRIPTORS,
1701 GELIC_NET_RX_DESCRIPTORS))
1705 card->tx_top = card->tx_chain.head;
1706 card->rx_top = card->rx_chain.head;
1707 dev_dbg(ctodev(card), "descr rx %p, tx %p, size %#lx, num %#x\n",
1708 card->rx_top, card->tx_top, sizeof(struct gelic_descr),
1709 GELIC_NET_RX_DESCRIPTORS);
1710 /* allocate rx skbs */
1711 if (gelic_card_alloc_rx_skbs(card))
1712 goto fail_alloc_skbs;
1714 spin_lock_init(&card->tx_lock);
1715 card->tx_dma_progress = 0;
1717 /* setup net_device structure */
1718 netdev->irq = card->irq;
1719 SET_NETDEV_DEV(netdev, &card->dev->core);
1720 gelic_ether_setup_netdev_ops(netdev, &card->napi);
1721 result = gelic_net_setup_netdev(netdev, card);
1723 dev_dbg(&dev->core, "%s: setup_netdev failed %d",
1725 goto fail_setup_netdev;
1728 #ifdef CONFIG_GELIC_WIRELESS
1729 if (gelic_wl_driver_probe(card)) {
1730 dev_dbg(&dev->core, "%s: WL init failed\n", __func__);
1731 goto fail_setup_netdev;
1734 pr_debug("%s: done\n", __func__);
1739 gelic_card_free_chain(card, card->rx_chain.head);
1741 gelic_card_free_chain(card, card->tx_chain.head);
1743 free_irq(card->irq, card);
1744 netdev->irq = NO_IRQ;
1746 ps3_sb_event_receive_port_destroy(dev, card->irq);
1748 lv1_net_set_interrupt_status_indicator(bus_id(card),
1751 fail_status_indicator:
1752 ps3_system_bus_set_driver_data(dev, NULL);
1753 kfree(netdev_card(netdev)->unalign);
1754 free_netdev(netdev);
1756 ps3_dma_region_free(dev->d_region);
1758 ps3_close_hv_device(dev);
1764 * ps3_gelic_driver_remove - remove a device from the control of this driver
1767 static int ps3_gelic_driver_remove(struct ps3_system_bus_device *dev)
1769 struct gelic_card *card = ps3_system_bus_get_driver_data(dev);
1770 struct net_device *netdev0;
1771 pr_debug("%s: called\n", __func__);
1773 #ifdef CONFIG_GELIC_WIRELESS
1774 gelic_wl_driver_remove(card);
1776 /* stop interrupt */
1777 gelic_card_set_irq_mask(card, 0);
1779 /* turn off DMA, force end */
1780 gelic_card_disable_rxdmac(card);
1781 gelic_card_disable_txdmac(card);
1783 /* release chains */
1784 gelic_card_release_tx_chain(card, 1);
1785 gelic_card_release_rx_chain(card);
1787 gelic_card_free_chain(card, card->tx_top);
1788 gelic_card_free_chain(card, card->rx_top);
1790 netdev0 = card->netdev[GELIC_PORT_ETHERNET];
1791 /* disconnect event port */
1792 free_irq(card->irq, card);
1793 netdev0->irq = NO_IRQ;
1794 ps3_sb_event_receive_port_destroy(card->dev, card->irq);
1796 wait_event(card->waitq,
1797 atomic_read(&card->tx_timeout_task_counter) == 0);
1799 lv1_net_set_interrupt_status_indicator(bus_id(card), dev_id(card),
1802 unregister_netdev(netdev0);
1803 kfree(netdev_card(netdev0)->unalign);
1804 free_netdev(netdev0);
1806 ps3_system_bus_set_driver_data(dev, NULL);
1808 ps3_dma_region_free(dev->d_region);
1810 ps3_close_hv_device(dev);
1812 pr_debug("%s: done\n", __func__);
1816 static struct ps3_system_bus_driver ps3_gelic_driver = {
1817 .match_id = PS3_MATCH_ID_GELIC,
1818 .probe = ps3_gelic_driver_probe,
1819 .remove = ps3_gelic_driver_remove,
1820 .shutdown = ps3_gelic_driver_remove,
1821 .core.name = "ps3_gelic_driver",
1822 .core.owner = THIS_MODULE,
1825 static int __init ps3_gelic_driver_init (void)
1827 return firmware_has_feature(FW_FEATURE_PS3_LV1)
1828 ? ps3_system_bus_driver_register(&ps3_gelic_driver)
1832 static void __exit ps3_gelic_driver_exit (void)
1834 ps3_system_bus_driver_unregister(&ps3_gelic_driver);
1837 module_init(ps3_gelic_driver_init);
1838 module_exit(ps3_gelic_driver_exit);
1840 MODULE_ALIAS(PS3_MODULE_ALIAS_GELIC);