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Date: Mon, 6 Nov 2023 17:54:06 +0000
From: Pawel Laszczak <pawell@...ence.com>
To: Pawel Laszczak <pawell@...ence.com>,
"peter.chen@...nel.org" <peter.chen@...nel.org>
CC: "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] usb:cdnsp: remove TRB_FLUSH_ENDPOINT command
Please ignore this email. This patch has been already accepted.
It has been send due to some server email issue.
>-----Original Message-----
>From: Pawel Laszczak <pawell@...ence.com>
>Sent: Thursday, October 12, 2023 6:46 AM
>To: peter.chen@...nel.org
>Cc: gregkh@...uxfoundation.org; linux-usb@...r.kernel.org; linux-
>kernel@...r.kernel.org; Pawel Laszczak <pawell@...ence.com>
>Subject: [PATCH] usb:cdnsp: remove TRB_FLUSH_ENDPOINT command
>
>Patch removes TRB_FLUSH_ENDPOINT command from driver.
>This command is not supported by controller and USBSSP returns TRB Error
>completion code for it.
>
>Signed-off-by: Pawel Laszczak <pawell@...ence.com>
>---
> drivers/usb/cdns3/cdnsp-debug.h | 3 --- drivers/usb/cdns3/cdnsp-gadget.c
>| 6 +----- drivers/usb/cdns3/cdnsp-gadget.h | 5 -----
> drivers/usb/cdns3/cdnsp-ring.c | 24 ------------------------
> 4 files changed, 1 insertion(+), 37 deletions(-)
>
>diff --git a/drivers/usb/cdns3/cdnsp-debug.h b/drivers/usb/cdns3/cdnsp-
>debug.h index f0ca865cce2a..ad617b7455b9 100644
>--- a/drivers/usb/cdns3/cdnsp-debug.h
>+++ b/drivers/usb/cdns3/cdnsp-debug.h
>@@ -131,8 +131,6 @@ static inline const char *cdnsp_trb_type_string(u8
>type)
> return "Endpoint Not ready";
> case TRB_HALT_ENDPOINT:
> return "Halt Endpoint";
>- case TRB_FLUSH_ENDPOINT:
>- return "FLush Endpoint";
> default:
> return "UNKNOWN";
> }
>@@ -328,7 +326,6 @@ static inline const char *cdnsp_decode_trb(char *str,
>size_t size, u32 field0,
> break;
> case TRB_RESET_EP:
> case TRB_HALT_ENDPOINT:
>- case TRB_FLUSH_ENDPOINT:
> ret = snprintf(str, size,
> "%s: ep%d%s(%d) ctx %08x%08x slot %ld flags %c",
> cdnsp_trb_type_string(type),
>diff --git a/drivers/usb/cdns3/cdnsp-gadget.c b/drivers/usb/cdns3/cdnsp-
>gadget.c
>index 4b67749edb99..4a3f0f958256 100644
>--- a/drivers/usb/cdns3/cdnsp-gadget.c
>+++ b/drivers/usb/cdns3/cdnsp-gadget.c
>@@ -1024,10 +1024,8 @@ static int cdnsp_gadget_ep_disable(struct usb_ep
>*ep)
> pep->ep_state |= EP_DIS_IN_RROGRESS;
>
> /* Endpoint was unconfigured by Reset Device command. */
>- if (!(pep->ep_state & EP_UNCONFIGURED)) {
>+ if (!(pep->ep_state & EP_UNCONFIGURED))
> cdnsp_cmd_stop_ep(pdev, pep);
>- cdnsp_cmd_flush_ep(pdev, pep);
>- }
>
> /* Remove all queued USB requests. */
> while (!list_empty(&pep->pending_list)) { @@ -1424,8 +1422,6 @@
>static void cdnsp_stop(struct cdnsp_device *pdev) {
> u32 temp;
>
>- cdnsp_cmd_flush_ep(pdev, &pdev->eps[0]);
>-
> /* Remove internally queued request for ep0. */
> if (!list_empty(&pdev->eps[0].pending_list)) {
> struct cdnsp_request *req;
>diff --git a/drivers/usb/cdns3/cdnsp-gadget.h b/drivers/usb/cdns3/cdnsp-
>gadget.h
>index e1b5801fdddf..dbee6f085277 100644
>--- a/drivers/usb/cdns3/cdnsp-gadget.h
>+++ b/drivers/usb/cdns3/cdnsp-gadget.h
>@@ -1128,8 +1128,6 @@ union cdnsp_trb {
> #define TRB_HALT_ENDPOINT 54
> /* Doorbell Overflow Event. */
> #define TRB_DRB_OVERFLOW 57
>-/* Flush Endpoint Command. */
>-#define TRB_FLUSH_ENDPOINT 58
>
> #define TRB_TYPE_LINK(x) (((x) & TRB_TYPE_BITMASK) ==
>TRB_TYPE(TRB_LINK))
> #define TRB_TYPE_LINK_LE32(x) (((x) &
>cpu_to_le32(TRB_TYPE_BITMASK)) == \
>@@ -1539,8 +1537,6 @@ void cdnsp_queue_configure_endpoint(struct
>cdnsp_device *pdev, void cdnsp_queue_reset_ep(struct cdnsp_device *pdev,
>unsigned int ep_index); void cdnsp_queue_halt_endpoint(struct
>cdnsp_device *pdev,
> unsigned int ep_index);
>-void cdnsp_queue_flush_endpoint(struct cdnsp_device *pdev,
>- unsigned int ep_index);
> void cdnsp_force_header_wakeup(struct cdnsp_device *pdev, int intf_num);
>void cdnsp_queue_reset_device(struct cdnsp_device *pdev); void
>cdnsp_queue_new_dequeue_state(struct cdnsp_device *pdev, @@ -1574,7
>+1570,6 @@ void cdnsp_irq_reset(struct cdnsp_device *pdev); int
>cdnsp_halt_endpoint(struct cdnsp_device *pdev,
> struct cdnsp_ep *pep, int value);
> int cdnsp_cmd_stop_ep(struct cdnsp_device *pdev, struct cdnsp_ep *pep); -
>int cdnsp_cmd_flush_ep(struct cdnsp_device *pdev, struct cdnsp_ep *pep);
>void cdnsp_setup_analyze(struct cdnsp_device *pdev); int
>cdnsp_status_stage(struct cdnsp_device *pdev); int
>cdnsp_reset_device(struct cdnsp_device *pdev); diff --git
>a/drivers/usb/cdns3/cdnsp-ring.c b/drivers/usb/cdns3/cdnsp-ring.c index
>07f6068342d4..af981778382d 100644
>--- a/drivers/usb/cdns3/cdnsp-ring.c
>+++ b/drivers/usb/cdns3/cdnsp-ring.c
>@@ -2123,19 +2123,6 @@ int cdnsp_cmd_stop_ep(struct cdnsp_device
>*pdev, struct cdnsp_ep *pep)
> return ret;
> }
>
>-int cdnsp_cmd_flush_ep(struct cdnsp_device *pdev, struct cdnsp_ep *pep) -{
>- int ret;
>-
>- cdnsp_queue_flush_endpoint(pdev, pep->idx);
>- cdnsp_ring_cmd_db(pdev);
>- ret = cdnsp_wait_for_cmd_compl(pdev);
>-
>- trace_cdnsp_handle_cmd_flush_ep(pep->out_ctx);
>-
>- return ret;
>-}
>-
> /*
> * The transfer burst count field of the isochronous TRB defines the number
>of
> * bursts that are required to move all packets in this TD. Only SuperSpeed
>@@ -2465,17 +2452,6 @@ void cdnsp_queue_halt_endpoint(struct
>cdnsp_device *pdev, unsigned int ep_index)
> EP_ID_FOR_TRB(ep_index));
> }
>
>-/*
>- * Queue a flush endpoint request on the command ring.
>- */
>-void cdnsp_queue_flush_endpoint(struct cdnsp_device *pdev,
>- unsigned int ep_index)
>-{
>- cdnsp_queue_command(pdev, 0, 0, 0,
>TRB_TYPE(TRB_FLUSH_ENDPOINT) |
>- SLOT_ID_FOR_TRB(pdev->slot_id) |
>- EP_ID_FOR_TRB(ep_index));
>-}
>-
> void cdnsp_force_header_wakeup(struct cdnsp_device *pdev, int intf_num)
>{
> u32 lo, mid;
>--
>2.25.1
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