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af_rxrpc: Expose more RxRPC parameters via sysctls

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Expose RxRPC parameters via sysctls to control the Rx window size, the Rx MTU
maximum size and the number of packets that can be glued into a jumbo packet.

More info added to Documentation/networking/rxrpc.txt.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2014-02-07 18:10:30 +00:00
parent 9823f39a17
commit 817913d8cd
5 changed files with 79 additions and 4 deletions
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33
net/rxrpc/sysctl.c
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@@ -17,6 +17,9 @@
static struct ctl_table_header *rxrpc_sysctl_reg_table;
static const unsigned zero = 0;
static const unsigned one = 1;
static const unsigned four = 4;
static const unsigned n_65535 = 65535;
static const unsigned n_max_acks = RXRPC_MAXACKS;
/*
* RxRPC operating parameters.
@@ -94,6 +97,36 @@ static struct ctl_table rxrpc_sysctl_table[] = {
.proc_handler = proc_dointvec_minmax,
.extra1 = (void *)&one,
},
/* Non-time values */
{
.procname = "rx_window_size",
.data = &rxrpc_rx_window_size,
.maxlen = sizeof(unsigned),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = (void *)&one,
.extra2 = (void *)&n_max_acks,
},
{
.procname = "rx_mtu",
.data = &rxrpc_rx_mtu,
.maxlen = sizeof(unsigned),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = (void *)&one,
.extra1 = (void *)&n_65535,
},
{
.procname = "rx_jumbo_max",
.data = &rxrpc_rx_jumbo_max,
.maxlen = sizeof(unsigned),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = (void *)&one,
.extra2 = (void *)&four,
},
{ }
};