Patrick Williams | c124f4f | 2015-09-15 14:41:29 -0500 | [diff] [blame] | 1 | From: Peter Crosthwaite <crosthwaitepeter@gmail.com> |
| 2 | To: qemu-devel@nongnu.org |
| 3 | Cc: peter.maydell@linaro.org, richard.purdie@linuxfoundation.org |
| 4 | Subject: [RFT PATCH v1 3/3] net: smc91c111: flush packets on RCR register |
| 5 | changes |
| 6 | Date: Thu, 10 Sep 2015 21:24:12 -0700 |
| 7 | |
| 8 | The SOFT_RST or RXEN in the control register can be used as a condition |
| 9 | to unblock the net layer via can_receive(). So check for possible |
| 10 | flushes on RCR changes. This will drop all pending packets on soft |
| 11 | reset or disable which is the functional intent of the can_receive() |
| 12 | logic. |
| 13 | |
| 14 | Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> |
| 15 | |
| 16 | Upstream-Status: Submitted |
| 17 | --- |
| 18 | |
| 19 | hw/net/smc91c111.c | 1 + |
| 20 | 1 file changed, 1 insertion(+) |
| 21 | |
| 22 | Index: qemu-2.4.0/hw/net/smc91c111.c |
| 23 | =================================================================== |
| 24 | --- qemu-2.4.0.orig/hw/net/smc91c111.c |
| 25 | +++ qemu-2.4.0/hw/net/smc91c111.c |
| 26 | @@ -331,6 +331,7 @@ static void smc91c111_writeb(void *opaqu |
| 27 | if (s->rcr & RCR_SOFT_RST) { |
| 28 | smc91c111_reset(DEVICE(s)); |
| 29 | } |
| 30 | + smc91c111_flush_queued_packets(s); |
| 31 | return; |
| 32 | case 10: case 11: /* RPCR */ |
| 33 | /* Ignored */ |