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Revert "USB: rndis: Honor dl_max_packet_size value sent by host"

Browse source 
This reverts commit 8d0058d89c.

Instead, set GSI IN aggregation size by directly reading the
RNDIS_MSG_INIT message's MaxTransferSize field.

Change-Id: Ia36ac79f4fce2c3e89a542cfa82c39c4c1b52700
Signed-off-by: Jack Pham <jackp@codeaurora.org>
This commit is contained in:
Jack Pham 2020-05-08 00:33:31 -07:00
commit d96a0b49f5
3 changed files with 9 additions and 17 deletions
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10
drivers/usb/gadget/function/f_gsi.c
View file

@ -2048,10 +2048,14 @@ static void gsi_rndis_command_complete(struct usb_ep *ep,
buf = (rndis_init_msg_type *)req->buf;
if (le32_to_cpu(buf->MessageType) == RNDIS_MSG_INIT) {
log_event_dbg("RNDIS host major:%d minor:%d version\n",
le32_to_cpu(buf->MajorVersion),
le32_to_cpu(buf->MinorVersion));
/* honor host dl aggr size */
gsi->d_port.in_aggr_size = gsi->params->dl_max_xfer_size;
log_event_dbg("RNDIS host dl_aggr_size:%d\n",
gsi->params->dl_max_xfer_size);
gsi->d_port.in_aggr_size = le32_to_cpu(buf->MaxTransferSize);
log_event_dbg("RNDIS host DL MaxTransferSize:%d\n",
le32_to_cpu(buf->MaxTransferSize));
}
}

13
drivers/usb/gadget/function/rndis.c
View file

@ -803,17 +803,8 @@ int rndis_msg_parser(struct rndis_params *params, u8 *buf)
/* For USB: responses may take up to 10 seconds */
switch (MsgType) {
case RNDIS_MSG_INIT:
pr_debug("%s: RNDIS_MSG_INIT\n", __func__);
tmp++; /* to get RequestID */
params->host_rndis_major_ver = get_unaligned_le32(tmp++);
params->host_rndis_minor_ver = get_unaligned_le32(tmp++);
params->dl_max_xfer_size = get_unaligned_le32(tmp++);
pr_debug("%s(): RNDIS Host Major:%d Minor:%d version\n",
__func__, params->host_rndis_major_ver,
params->host_rndis_minor_ver);
pr_debug("%s(): DL Max Transfer size:%x\n",
__func__, params->dl_max_xfer_size);
pr_debug("%s: RNDIS_MSG_INIT\n",
__func__);
params->state = RNDIS_INITIALIZED;
return rndis_init_response(params, (rndis_init_msg_type *)buf);

3
drivers/usb/gadget/function/rndis.h
View file

@ -171,9 +171,6 @@ typedef struct rndis_params {
u32 vendorID;
u8 max_pkt_per_xfer;
u32 host_rndis_major_ver;
u32 host_rndis_minor_ver;
u32 dl_max_xfer_size;
const char *vendorDescr;
u8 pkt_alignment_factor;
void (*resp_avail)(void *v);