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xhci: Remove old no-op test. 

The test of placing a number of command no-ops on the command ring and
counting the number of no-op events that were generated was only used
during the initial xHCI driver bring up.  This test is no longer used, so
delete it.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This commit is contained in:
Sarah Sharp 2010-10-21 12:22:28 -07:00
parent db7c7c0aee
commit 0b8ca72a23
3 changed files with 0 additions and 35 deletions
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19
drivers/usb/host/xhci-ring.c
View File

@ -1113,7 +1113,6 @@ bandwidth_change:
handle_set_deq_completion(xhci, event, xhci->cmd_ring->dequeue);
break;
case TRB_TYPE(TRB_CMD_NOOP):
++xhci->noops_handled;
break;
case TRB_TYPE(TRB_RESET_EP):
handle_reset_ep_completion(xhci, event, xhci->cmd_ring->dequeue);
@ -3125,24 +3124,6 @@ static int queue_command(struct xhci_hcd *xhci, u32 field1, u32 field2,
return 0;
}
/* 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), false);
}
/*
* Place a no-op command on the command ring to test the command and
* event ring.
*/
void *xhci_setup_one_noop(struct xhci_hcd *xhci)
{
if (queue_cmd_noop(xhci) < 0)
return NULL;
xhci->noops_submitted++;
return xhci_ring_cmd_db;
}
/* Queue a slot enable or disable request on the command ring */
int xhci_queue_slot_control(struct xhci_hcd *xhci, u32 trb_type, u32 slot_id)
{

10
drivers/usb/host/xhci.c
View File

@ -350,7 +350,6 @@ void xhci_event_ring_work(unsigned long arg)
temp = xhci_readl(xhci, &xhci->ir_set->irq_pending);
xhci_dbg(xhci, "ir_set 0 pending = 0x%x\n", temp);
xhci_dbg(xhci, "No-op commands handled = %d\n", xhci->noops_handled);
xhci_dbg(xhci, "HC error bitmask = 0x%x\n", xhci->error_bitmask);
xhci->error_bitmask = 0;
xhci_dbg(xhci, "Event ring:\n");
@ -370,10 +369,6 @@ void xhci_event_ring_work(unsigned long arg)
xhci_dbg_ep_rings(xhci, i, j, &xhci->devs[i]->eps[j]);
}
}
if (xhci->noops_submitted != NUM_TEST_NOOPS)
if (xhci_setup_one_noop(xhci))
xhci_ring_cmd_db(xhci);
spin_unlock_irqrestore(&xhci->lock, flags);
if (!xhci->zombie)
@ -402,7 +397,6 @@ int xhci_run(struct usb_hcd *hcd)
u32 ret;
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
struct pci_dev *pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller);
void (*doorbell)(struct xhci_hcd *) = NULL;
hcd->uses_new_polling = 1;
@ -475,8 +469,6 @@ int xhci_run(struct usb_hcd *hcd)
&xhci->ir_set->irq_pending);
xhci_print_ir_set(xhci, xhci->ir_set, 0);
if (NUM_TEST_NOOPS > 0)
doorbell = xhci_setup_one_noop(xhci);
if (xhci->quirks & XHCI_NEC_HOST)
xhci_queue_vendor_command(xhci, 0, 0, 0,
TRB_TYPE(TRB_NEC_GET_FW));
@ -486,8 +478,6 @@ int xhci_run(struct usb_hcd *hcd)
return -ENODEV;
}
if (doorbell)
(*doorbell)(xhci);
if (xhci->quirks & XHCI_NEC_HOST)
xhci_ring_cmd_db(xhci);

6
drivers/usb/host/xhci.h
View File

@ -1243,8 +1243,6 @@ struct xhci_hcd {
*/
#define XHCI_STATE_DYING (1 << 0)
/* Statistics */
int noops_submitted;
int noops_handled;
int error_bitmask;
unsigned int quirks;
#define XHCI_LINK_TRB_QUIRK (1 << 0)
@ -1264,9 +1262,6 @@ struct xhci_hcd {
unsigned int num_usb2_ports;
};
/* For testing purposes */
#define NUM_TEST_NOOPS 0
/* convert between an HCD pointer and the corresponding EHCI_HCD */
static inline struct xhci_hcd *hcd_to_xhci(struct usb_hcd *hcd)
{
@ -1471,7 +1466,6 @@ struct xhci_segment *trb_in_td(struct xhci_segment *start_seg,
dma_addr_t suspect_dma);
int xhci_is_vendor_info_code(struct xhci_hcd *xhci, unsigned int trb_comp_code);
void xhci_ring_cmd_db(struct xhci_hcd *xhci);
void *xhci_setup_one_noop(struct xhci_hcd *xhci);
int xhci_queue_slot_control(struct xhci_hcd *xhci, u32 trb_type, u32 slot_id);
int xhci_queue_address_device(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr,
u32 slot_id);