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Commit 384f9d91 authored by Chris Lew's avatar Chris Lew
Browse files

diag: diagfwd_socket: Increase socket receive buf 



Diag expects heavy traffic when maximum logging is enabled. The maximum
amount of packets QRTR will deliver before flow control kicks in is
16k * 10. Use setsockopt to increase the rcvbuf for the diag sockets
to avoid dropping any packets from the remote.

Change-Id: I782997c00e1f4ccefb8cee635b65ae2edb733396
Signed-off-by: default avatarChris Lew <clew@codeaurora.org>
parent 5cd75ce7

drivers/char/diag/diagfwd_socket.c

+8 −0
Original line number Diff line number Diff line
@@ -52,6 +52,10 @@ 
#define INST_ID_DCI_CMD		3

#define INST_ID_DCI		4



#define MAX_BUF_SIZE 		0x4400

#define MAX_NO_PACKETS		10

#define DIAG_SO_RCVBUF_SIZE	(MAX_BUF_SIZE * MAX_NO_PACKETS)



struct qmi_handle *cntl_qmi;

static uint64_t bootup_req[NUM_SOCKET_SUBSYSTEMS];
@@ -438,6 +442,7 @@ static void socket_open_server(struct diag_socket_info *info) 
	struct kvec iv = { &pkt, sizeof(pkt) };

	int ret;

	int sl = sizeof(sq);

	unsigned int size = DIAG_SO_RCVBUF_SIZE;



	if (!info || info->port_type != PORT_TYPE_SERVER)

		return;
@@ -456,6 +461,9 @@ static void socket_open_server(struct diag_socket_info *info) 
		return;

	}



	kernel_setsockopt(info->hdl, SOL_SOCKET, SO_RCVBUF,

			  (char *)&size, sizeof(size));



	write_lock_bh(&info->hdl->sk->sk_callback_lock);

	info->hdl->sk->sk_user_data = (void *)(info);

	info->hdl->sk->sk_data_ready = socket_data_ready;