diff options
| -rw-r--r-- | drivers/usb/host/xhci-hcd.c | 82 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-mem.c | 55 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 68 | ||||
| -rw-r--r-- | drivers/usb/host/xhci.h | 34 |
4 files changed, 186 insertions, 53 deletions
diff --git a/drivers/usb/host/xhci-hcd.c b/drivers/usb/host/xhci-hcd.c index 9c985d1..2fcc360 100644 --- a/drivers/usb/host/xhci-hcd.c +++ b/drivers/usb/host/xhci-hcd.c @@ -612,8 +612,8 @@ int xhci_check_args(struct usb_hcd *hcd, struct usb_device *udev, } static int xhci_configure_endpoint(struct xhci_hcd *xhci, - struct usb_device *udev, struct xhci_virt_device *virt_dev, - bool ctx_change); + struct usb_device *udev, struct xhci_command *command, + bool ctx_change, bool must_succeed); /* * Full speed devices may have a max packet size greater than 8 bytes, but the @@ -645,7 +645,8 @@ static int xhci_check_maxpacket(struct xhci_hcd *xhci, unsigned int slot_id, xhci_dbg(xhci, "Issuing evaluate context command.\n"); /* Set up the modified control endpoint 0 */ - xhci_endpoint_copy(xhci, xhci->devs[slot_id], ep_index); + xhci_endpoint_copy(xhci, xhci->devs[slot_id]->in_ctx, + xhci->devs[slot_id]->out_ctx, ep_index); in_ctx = xhci->devs[slot_id]->in_ctx; ep_ctx = xhci_get_ep_ctx(xhci, in_ctx, ep_index); ep_ctx->ep_info2 &= ~MAX_PACKET_MASK; @@ -664,8 +665,8 @@ static int xhci_check_maxpacket(struct xhci_hcd *xhci, unsigned int slot_id, xhci_dbg(xhci, "Slot %d output context\n", slot_id); xhci_dbg_ctx(xhci, out_ctx, ep_index); - ret = xhci_configure_endpoint(xhci, urb->dev, - xhci->devs[slot_id], true); + ret = xhci_configure_endpoint(xhci, urb->dev, NULL, + true, false); /* Clean up the input context for later use by bandwidth * functions. @@ -1038,11 +1039,11 @@ static void xhci_zero_in_ctx(struct xhci_hcd *xhci, struct xhci_virt_device *vir } static int xhci_configure_endpoint_result(struct xhci_hcd *xhci, - struct usb_device *udev, struct xhci_virt_device *virt_dev) + struct usb_device *udev, int *cmd_status) { int ret; - switch (virt_dev->cmd_status) { + switch (*cmd_status) { case COMP_ENOMEM: dev_warn(&udev->dev, "Not enough host controller resources " "for new device state.\n"); @@ -1068,7 +1069,7 @@ static int xhci_configure_endpoint_result(struct xhci_hcd *xhci, break; default: xhci_err(xhci, "ERROR: unexpected command completion " - "code 0x%x.\n", virt_dev->cmd_status); + "code 0x%x.\n", *cmd_status); ret = -EINVAL; break; } @@ -1076,11 +1077,12 @@ static int xhci_configure_endpoint_result(struct xhci_hcd *xhci, } static int xhci_evaluate_context_result(struct xhci_hcd *xhci, - struct usb_device *udev, struct xhci_virt_device *virt_dev) + struct usb_device *udev, int *cmd_status) { int ret; + struct xhci_virt_device *virt_dev = xhci->devs[udev->slot_id]; - switch (virt_dev->cmd_status) { + switch (*cmd_status) { case COMP_EINVAL: dev_warn(&udev->dev, "WARN: xHCI driver setup invalid evaluate " "context command.\n"); @@ -1101,7 +1103,7 @@ static int xhci_evaluate_context_result(struct xhci_hcd *xhci, break; default: xhci_err(xhci, "ERROR: unexpected command completion " - "code 0x%x.\n", virt_dev->cmd_status); + "code 0x%x.\n", *cmd_status); ret = -EINVAL; break; } @@ -1112,19 +1114,37 @@ static int xhci_evaluate_context_result(struct xhci_hcd *xhci, * and wait for it to finish. */ static int xhci_configure_endpoint(struct xhci_hcd *xhci, - struct usb_device *udev, struct xhci_virt_device *virt_dev, - bool ctx_change) + struct usb_device *udev, + struct xhci_command *command, + bool ctx_change, bool must_succeed) { int ret; int timeleft; unsigned long flags; + struct xhci_container_ctx *in_ctx; + struct completion *cmd_completion; + int *cmd_status; + struct xhci_virt_device *virt_dev; spin_lock_irqsave(&xhci->lock, flags); + virt_dev = xhci->devs[udev->slot_id]; + if (command) { + in_ctx = command->in_ctx; + cmd_completion = command->completion; + cmd_status = &command->status; + command->command_trb = xhci->cmd_ring->enqueue; + list_add_tail(&command->cmd_list, &virt_dev->cmd_list); + } else { + in_ctx = virt_dev->in_ctx; + cmd_completion = &virt_dev->cmd_completion; + cmd_status = &virt_dev->cmd_status; + } + if (!ctx_change) - ret = xhci_queue_configure_endpoint(xhci, virt_dev->in_ctx->dma, - udev->slot_id); + ret = xhci_queue_configure_endpoint(xhci, in_ctx->dma, + udev->slot_id, must_succeed); else - ret = xhci_queue_evaluate_context(xhci, virt_dev->in_ctx->dma, + ret = xhci_queue_evaluate_context(xhci, in_ctx->dma, udev->slot_id); if (ret < 0) { spin_unlock_irqrestore(&xhci->lock, flags); @@ -1136,7 +1156,7 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci, /* Wait for the configure endpoint command to complete */ timeleft = wait_for_completion_interruptible_timeout( - &virt_dev->cmd_completion, + cmd_completion, USB_CTRL_SET_TIMEOUT); if (timeleft <= 0) { xhci_warn(xhci, "%s while waiting for %s command\n", @@ -1149,8 +1169,8 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci, } if (!ctx_change) - return xhci_configure_endpoint_result(xhci, udev, virt_dev); - return xhci_evaluate_context_result(xhci, udev, virt_dev); + return xhci_configure_endpoint_result(xhci, udev, cmd_status); + return xhci_evaluate_context_result(xhci, udev, cmd_status); } /* Called after one or more calls to xhci_add_endpoint() or @@ -1196,7 +1216,8 @@ int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev) xhci_dbg_ctx(xhci, virt_dev->in_ctx, LAST_CTX_TO_EP_NUM(slot_ctx->dev_info)); - ret = xhci_configure_endpoint(xhci, udev, virt_dev, false); + ret = xhci_configure_endpoint(xhci, udev, NULL, + false, false); if (ret) { /* Callee should call reset_bandwidth() */ return ret; @@ -1248,19 +1269,19 @@ void xhci_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev) } static void xhci_setup_input_ctx_for_config_ep(struct xhci_hcd *xhci, - unsigned int slot_id, u32 add_flags, u32 drop_flags) + struct xhci_container_ctx *in_ctx, + struct xhci_container_ctx *out_ctx, + u32 add_flags, u32 drop_flags) { struct xhci_input_control_ctx *ctrl_ctx; - ctrl_ctx = xhci_get_input_control_ctx(xhci, - xhci->devs[slot_id]->in_ctx); + ctrl_ctx = xhci_get_input_control_ctx(xhci, in_ctx); ctrl_ctx->add_flags = add_flags; ctrl_ctx->drop_flags = drop_flags; - xhci_slot_copy(xhci, xhci->devs[slot_id]); + xhci_slot_copy(xhci, in_ctx, out_ctx); ctrl_ctx->add_flags |= SLOT_FLAG; - xhci_dbg(xhci, "Slot ID %d Input Context:\n", slot_id); - xhci_dbg_ctx(xhci, xhci->devs[slot_id]->in_ctx, - xhci_last_valid_endpoint(add_flags)); + xhci_dbg(xhci, "Input Context:\n"); + xhci_dbg_ctx(xhci, in_ctx, xhci_last_valid_endpoint(add_flags)); } void xhci_setup_input_ctx_for_quirk(struct xhci_hcd *xhci, @@ -1272,7 +1293,8 @@ void xhci_setup_input_ctx_for_quirk(struct xhci_hcd *xhci, u32 added_ctxs; dma_addr_t addr; - xhci_endpoint_copy(xhci, xhci->devs[slot_id], ep_index); + xhci_endpoint_copy(xhci, xhci->devs[slot_id]->in_ctx, + xhci->devs[slot_id]->out_ctx, ep_index); in_ctx = xhci->devs[slot_id]->in_ctx; ep_ctx = xhci_get_ep_ctx(xhci, in_ctx, ep_index); addr = xhci_trb_virt_to_dma(deq_state->new_deq_seg, @@ -1288,8 +1310,8 @@ void xhci_setup_input_ctx_for_quirk(struct xhci_hcd *xhci, ep_ctx->deq = addr | deq_state->new_cycle_state; added_ctxs = xhci_get_endpoint_flag_from_index(ep_index); - xhci_setup_input_ctx_for_config_ep(xhci, slot_id, - added_ctxs, added_ctxs); + xhci_setup_input_ctx_for_config_ep(xhci, xhci->devs[slot_id]->in_ctx, + xhci->devs[slot_id]->out_ctx, added_ctxs, added_ctxs); } void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci, diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 75458ec..6e6797a 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -319,6 +319,7 @@ int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id, goto fail; init_completion(&dev->cmd_completion); + INIT_LIST_HEAD(&dev->cmd_list); /* Point to output device context in dcbaa. */ xhci->dcbaa->dev_context_ptrs[slot_id] = dev->out_ctx->dma; @@ -624,13 +625,15 @@ void xhci_endpoint_zero(struct xhci_hcd *xhci, * issue a configure endpoint command. */ void xhci_endpoint_copy(struct xhci_hcd *xhci, - struct xhci_virt_device *vdev, unsigned int ep_index) + struct xhci_container_ctx *in_ctx, + struct xhci_container_ctx *out_ctx, + unsigned int ep_index) { struct xhci_ep_ctx *out_ep_ctx; struct xhci_ep_ctx *in_ep_ctx; - out_ep_ctx = xhci_get_ep_ctx(xhci, vdev->out_ctx, ep_index); - in_ep_ctx = xhci_get_ep_ctx(xhci, vdev->in_ctx, ep_index); + out_ep_ctx = xhci_get_ep_ctx(xhci, out_ctx, ep_index); + in_ep_ctx = xhci_get_ep_ctx(xhci, in_ctx, ep_index); in_ep_ctx->ep_info = out_ep_ctx->ep_info; in_ep_ctx->ep_info2 = out_ep_ctx->ep_info2; @@ -643,13 +646,15 @@ void xhci_endpoint_copy(struct xhci_hcd *xhci, * issue a configure endpoint command. Only the context entries field matters, * but we'll copy the whole thing anyway. */ -void xhci_slot_copy(struct xhci_hcd *xhci, struct xhci_virt_device *vdev) +void xhci_slot_copy(struct xhci_hcd *xhci, + struct xhci_container_ctx *in_ctx, + struct xhci_container_ctx *out_ctx) { struct xhci_slot_ctx *in_slot_ctx; struct xhci_slot_ctx *out_slot_ctx; - in_slot_ctx = xhci_get_slot_ctx(xhci, vdev->in_ctx); - out_slot_ctx = xhci_get_slot_ctx(xhci, vdev->out_ctx); + in_slot_ctx = xhci_get_slot_ctx(xhci, in_ctx); + out_slot_ctx = xhci_get_slot_ctx(xhci, out_ctx); in_slot_ctx->dev_info = out_slot_ctx->dev_info; in_slot_ctx->dev_info2 = out_slot_ctx->dev_info2; @@ -754,6 +759,44 @@ static void scratchpad_free(struct xhci_hcd *xhci) xhci->scratchpad = NULL; } +struct xhci_command *xhci_alloc_command(struct xhci_hcd *xhci, + bool allocate_completion, gfp_t mem_flags) +{ + struct xhci_command *command; + + command = kzalloc(sizeof(*command), mem_flags); + if (!command) + return NULL; + + command->in_ctx = + xhci_alloc_container_ctx(xhci, XHCI_CTX_TYPE_INPUT, mem_flags); + if (!command->in_ctx) + return NULL; + + if (allocate_completion) { + command->completion = + kzalloc(sizeof(struct completion), mem_flags); + if (!command->completion) { + xhci_free_container_ctx(xhci, command->in_ctx); + return NULL; + } + init_completion(command->completion); + } + + command->status = 0; + INIT_LIST_HEAD(&command->cmd_list); + return command; +} + +void xhci_free_command(struct xhci_hcd *xhci, + struct xhci_command *command) +{ + xhci_free_container_ctx(xhci, + command->in_ctx); + kfree(command->completion); + kfree(command); +} + void xhci_mem_cleanup(struct xhci_hcd *xhci) { struct pci_dev *pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller); diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 6a72d20..a9379b3 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -675,7 +675,8 @@ static void handle_reset_ep_completion(struct xhci_hcd *xhci, if (xhci->quirks & XHCI_RESET_EP_QUIRK) { xhci_dbg(xhci, "Queueing configure endpoint command\n"); xhci_queue_configure_endpoint(xhci, - xhci->devs[slot_id]->in_ctx->dma, slot_id); + xhci->devs[slot_id]->in_ctx->dma, slot_id, + false); xhci_ring_cmd_db(xhci); } else { /* Clear our internal halted state and restart the ring */ @@ -691,6 +692,7 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, u64 cmd_dma; dma_addr_t cmd_dequeue_dma; struct xhci_input_control_ctx *ctrl_ctx; + struct xhci_virt_device *virt_dev; unsigned int ep_index; struct xhci_ring *ep_ring; unsigned int ep_state; @@ -721,6 +723,25 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, xhci_free_virt_device(xhci, slot_id); break; case TRB_TYPE(TRB_CONFIG_EP): + virt_dev = xhci->devs[slot_id]; + /* Check to see if a command in the device's command queue + * matches this one. Signal the completion or free the command. + */ + if (!list_empty(&virt_dev->cmd_list)) { + struct xhci_command *command; + command = list_entry(virt_dev->cmd_list.next, + struct xhci_command, cmd_list); + if (xhci->cmd_ring->dequeue == command->command_trb) { + command->status = + GET_COMP_CODE(event->status); + list_del(&command->cmd_list); + if (command->completion) + complete(command->completion); + else + xhci_free_command(xhci, command); + } + break; + } /* * Configure endpoint commands can come from the USB core * configuration or alt setting changes, or because the HW @@ -729,7 +750,7 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, * not waiting on the configure endpoint command. */ ctrl_ctx = xhci_get_input_control_ctx(xhci, - xhci->devs[slot_id]->in_ctx); + virt_dev->in_ctx); /* Input ctx add_flags are the endpoint index plus one */ ep_index = xhci_last_valid_endpoint(ctrl_ctx->add_flags) - 1; ep_ring = xhci->devs[slot_id]->eps[ep_index].ring; @@ -1858,12 +1879,27 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags, /**** Command Ring Operations ****/ -/* Generic function for queueing a command TRB on the command ring */ -static int queue_command(struct xhci_hcd *xhci, u32 field1, u32 field2, u32 field3, u32 field4) +/* Generic function for queueing a command TRB on the command ring. + * Check to make sure there's room on the command ring for one command TRB. + * Also check that there's room reserved for commands that must not fail. + * If this is a command that must not fail, meaning command_must_succeed = TRUE, + * then only check for the number of reserved spots. + * Don't decrement xhci->cmd_ring_reserved_trbs after we've queued the TRB + * because the command event handler may want to resubmit a failed command. + */ +static int queue_command(struct xhci_hcd *xhci, u32 field1, u32 field2, + u32 field3, u32 field4, bool command_must_succeed) { - if (!room_on_ring(xhci, xhci->cmd_ring, 1)) { + int reserved_trbs = xhci->cmd_ring_reserved_trbs; + if (!command_must_succeed) + reserved_trbs++; + + if (!room_on_ring(xhci, xhci->cmd_ring, reserved_trbs)) { if (!in_interrupt()) xhci_err(xhci, "ERR: No room for command on command ring\n"); + if (command_must_succeed) + xhci_err(xhci, "ERR: Reserved TRB counting for " + "unfailable commands failed.\n"); return -ENOMEM; } queue_trb(xhci, xhci->cmd_ring, false, field1, field2, field3, @@ -1874,7 +1910,7 @@ static int queue_command(struct xhci_hcd *xhci, u32 field1, u32 field2, u32 fiel /* Queue a no-op command on the command ring */ static int queue_cmd_noop(struct xhci_hcd *xhci) { - return queue_command(xhci, 0, 0, 0, TRB_TYPE(TRB_CMD_NOOP)); + return queue_command(xhci, 0, 0, 0, TRB_TYPE(TRB_CMD_NOOP), false); } /* @@ -1893,7 +1929,7 @@ void *xhci_setup_one_noop(struct xhci_hcd *xhci) int xhci_queue_slot_control(struct xhci_hcd *xhci, u32 trb_type, u32 slot_id) { return queue_command(xhci, 0, 0, 0, - TRB_TYPE(trb_type) | SLOT_ID_FOR_TRB(slot_id)); + TRB_TYPE(trb_type) | SLOT_ID_FOR_TRB(slot_id), false); } /* Queue an address device command TRB */ @@ -1902,16 +1938,18 @@ int xhci_queue_address_device(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, { return queue_command(xhci, lower_32_bits(in_ctx_ptr), upper_32_bits(in_ctx_ptr), 0, - TRB_TYPE(TRB_ADDR_DEV) | SLOT_ID_FOR_TRB(slot_id)); + TRB_TYPE(TRB_ADDR_DEV) | SLOT_ID_FOR_TRB(slot_id), + false); } /* Queue a configure endpoint command TRB */ int xhci_queue_configure_endpoint(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, - u32 slot_id) + u32 slot_id, bool command_must_succeed) { return queue_command(xhci, lower_32_bits(in_ctx_ptr), upper_32_bits(in_ctx_ptr), 0, - TRB_TYPE(TRB_CONFIG_EP) | SLOT_ID_FOR_TRB(slot_id)); + TRB_TYPE(TRB_CONFIG_EP) | SLOT_ID_FOR_TRB(slot_id), + command_must_succeed); } /* Queue an evaluate context command TRB */ @@ -1920,7 +1958,8 @@ int xhci_queue_evaluate_context(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, { return queue_command(xhci, lower_32_bits(in_ctx_ptr), upper_32_bits(in_ctx_ptr), 0, - TRB_TYPE(TRB_EVAL_CONTEXT) | SLOT_ID_FOR_TRB(slot_id)); + TRB_TYPE(TRB_EVAL_CONTEXT) | SLOT_ID_FOR_TRB(slot_id), + false); } int xhci_queue_stop_endpoint(struct xhci_hcd *xhci, int slot_id, @@ -1931,7 +1970,7 @@ int xhci_queue_stop_endpoint(struct xhci_hcd *xhci, int slot_id, u32 type = TRB_TYPE(TRB_STOP_RING); return queue_command(xhci, 0, 0, 0, - trb_slot_id | trb_ep_index | type); + trb_slot_id | trb_ep_index | type, false); } /* Set Transfer Ring Dequeue Pointer command. @@ -1955,7 +1994,7 @@ static int queue_set_tr_deq(struct xhci_hcd *xhci, int slot_id, } return queue_command(xhci, lower_32_bits(addr) | cycle_state, upper_32_bits(addr), 0, - trb_slot_id | trb_ep_index | type); + trb_slot_id | trb_ep_index | type, false); } int xhci_queue_reset_ep(struct xhci_hcd *xhci, int slot_id, @@ -1965,5 +2004,6 @@ int xhci_queue_reset_ep(struct xhci_hcd *xhci, int slot_id, u32 trb_ep_index = EP_ID_FOR_TRB(ep_index); u32 type = TRB_TYPE(TRB_RESET_EP); - return queue_command(xhci, 0, 0, 0, trb_slot_id | trb_ep_index | type); + return queue_command(xhci, 0, 0, 0, trb_slot_id | trb_ep_index | type, + false); } diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 6270922..36f7d4f 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -620,6 +620,22 @@ struct xhci_input_control_ctx { u32 rsvd2[6]; }; +/* Represents everything that is needed to issue a command on the command ring. + * It's useful to pre-allocate these for commands that cannot fail due to + * out-of-memory errors, like freeing streams. + */ +struct xhci_command { + /* Input context for changing device state */ + struct xhci_container_ctx *in_ctx; + u32 status; + /* If completion is null, no one is waiting on this command + * and the structure can be freed after the command completes. + */ + struct completion *completion; + union xhci_trb *command_trb; + struct list_head cmd_list; +}; + /* drop context bitmasks */ #define DROP_EP(x) (0x1 << x) /* add context bitmasks */ @@ -658,6 +674,7 @@ struct xhci_virt_device { struct completion cmd_completion; /* Status of the last command issued for this device */ u32 cmd_status; + struct list_head cmd_list; }; @@ -920,6 +937,8 @@ union xhci_trb { * It must also be greater than 16. */ #define TRBS_PER_SEGMENT 64 +/* Allow two commands + a link TRB, along with any reserved command TRBs */ +#define MAX_RSVD_CMD_TRBS (TRBS_PER_SEGMENT - 3) #define SEGMENT_SIZE (TRBS_PER_SEGMENT*16) /* TRB buffer pointers can't cross 64KB boundaries */ #define TRB_MAX_BUFF_SHIFT 16 @@ -1040,6 +1059,7 @@ struct xhci_hcd { /* data structures */ struct xhci_device_context_array *dcbaa; struct xhci_ring *cmd_ring; + unsigned int cmd_ring_reserved_trbs; struct xhci_ring *event_ring; struct xhci_erst erst; /* Scratchpad */ @@ -1178,12 +1198,20 @@ unsigned int xhci_get_endpoint_flag_from_index(unsigned int ep_index); unsigned int xhci_last_valid_endpoint(u32 added_ctxs); void xhci_endpoint_zero(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev, struct usb_host_endpoint *ep); void xhci_endpoint_copy(struct xhci_hcd *xhci, - struct xhci_virt_device *vdev, unsigned int ep_index); -void xhci_slot_copy(struct xhci_hcd *xhci, struct xhci_virt_device *vdev); + struct xhci_container_ctx *in_ctx, + struct xhci_container_ctx *out_ctx, + unsigned int ep_index); +void xhci_slot_copy(struct xhci_hcd *xhci, + struct xhci_container_ctx *in_ctx, + struct xhci_container_ctx *out_ctx); int xhci_endpoint_init(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev, struct usb_device *udev, struct usb_host_endpoint *ep, gfp_t mem_flags); void xhci_ring_free(struct xhci_hcd *xhci, struct xhci_ring *ring); +struct xhci_command *xhci_alloc_command(struct xhci_hcd *xhci, + bool allocate_completion, gfp_t mem_flags); +void xhci_free_command(struct xhci_hcd *xhci, + struct xhci_command *command); #ifdef CONFIG_PCI /* xHCI PCI glue */ @@ -1229,7 +1257,7 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, struct urb *urb, int xhci_queue_intr_tx(struct xhci_hcd *xhci, gfp_t mem_flags, struct urb *urb, int slot_id, unsigned int ep_index); int xhci_queue_configure_endpoint(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, - u32 slot_id); + u32 slot_id, bool command_must_succeed); int xhci_queue_evaluate_context(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, u32 slot_id); int xhci_queue_reset_ep(struct xhci_hcd *xhci, int slot_id, |