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From: Finn Thain <fthain@telegraphics.com.au>
To: Jason Wang <jasowang@redhat.com>, qemu-devel@nongnu.org
Cc: Aleksandar Rikalo <aleksandar.rikalo@rt-rk.com>,
	Herve Poussineau <hpoussin@reactos.org>,
	Laurent Vivier <laurent@vivier.eu>,
	qemu-stable@nongnu.org
Subject: [PATCH 05/10] dp8393x: Update LLFA register
Date: Sat, 14 Dec 2019 12:25:57 +1100	[thread overview]
Message-ID: <42667d1214124065a82e661f38757fdfd0a47943.1576286757.git.fthain@telegraphics.com.au> (raw)
In-Reply-To: <cover.1576286757.git.fthain@telegraphics.com.au>

If the chip used QEMU's algorithm it would need an extra word-sized
register just to recheck the EOL bit, which would be a waste of silicon.
Do it the way the chip would do it. No functional change.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
---
 hw/net/dp8393x.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c
index 49d7d9769e..494deb42bf 100644
--- a/hw/net/dp8393x.c
+++ b/hw/net/dp8393x.c
@@ -768,7 +768,8 @@ static ssize_t dp8393x_receive(NetClientState *nc, const uint8_t * buf,
         address = dp8393x_crda(s) + sizeof(uint16_t) * 5 * width;
         address_space_rw(&s->as, address, MEMTXATTRS_UNSPECIFIED,
                          (uint8_t *)s->data, size, 0);
-        if (dp8393x_get(s, width, 0) & 0x1) {
+        s->regs[SONIC_LLFA] = dp8393x_get(s, width, 0);
+        if (s->regs[SONIC_LLFA] & 0x1) {
             /* Still EOL ; stop reception */
             return -1;
         }
-- 
2.23.0



  parent reply	other threads:[~2019-12-14  1:30 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-14  1:25 [PATCH 00/10] Fixes for DP8393X SONIC device emulation Finn Thain
2019-12-14  1:25 ` [PATCH 08/10] dp8393x: Implement packet size limit and RBAE interrupt Finn Thain
2019-12-14  1:25 ` [PATCH 09/10] dp8393x: Don't stop reception upon RBE interrupt assertion Finn Thain
2019-12-14  1:25 ` [PATCH 06/10] dp8393x: Clear RRRA command register bit only when appropriate Finn Thain
2019-12-14 13:31   ` Philippe Mathieu-Daudé
2019-12-14  1:25 ` [PATCH 02/10] dp8393x: Clean up endianness hacks Finn Thain
2019-12-14  1:25 ` Finn Thain [this message]
2019-12-14  1:25 ` [PATCH 10/10] dp8393x: Don't clobber packet checksum Finn Thain
2019-12-14 13:21   ` Philippe Mathieu-Daudé
2019-12-14  1:25 ` [PATCH 07/10] dp8393x: Implement TBWC0 and TBWC1 registers to restore buffer state Finn Thain
2019-12-14  1:25 ` [PATCH 01/10] dp8393x: Mask EOL bit from descriptor addresses Finn Thain
2019-12-14 13:35   ` Philippe Mathieu-Daudé
2019-12-14 23:21     ` Finn Thain
2019-12-14  1:25 ` [PATCH 04/10] dp8393x: Don't advance RX descriptor twice Finn Thain
2019-12-14  1:25 ` [PATCH 03/10] dp8393x: Have dp8393x_receive() return the packet size Finn Thain
2019-12-14 13:26   ` Philippe Mathieu-Daudé
2019-12-14  1:43 ` [PATCH 00/10] Fixes for DP8393X SONIC device emulation no-reply
2019-12-14  2:52   ` Finn Thain
2019-12-14 13:38     ` Philippe Mathieu-Daudé
2019-12-14 13:45       ` Eric Blake
2019-12-14 17:17 ` Aleksandar Markovic
2019-12-14 23:16   ` Finn Thain
2019-12-14 23:32     ` Aleksandar Markovic
2019-12-14 23:35       ` Aleksandar Markovic
2019-12-20  4:24         ` Finn Thain
2019-12-23 17:17           ` Philippe Mathieu-Daudé
2019-12-24  0:12             ` NetBSD/arc on MIPS Magnum, was " Finn Thain
2019-12-24  4:33               ` Finn Thain
2019-12-24  6:53                 ` Hervé Poussineau
2020-01-06 22:15                   ` Finn Thain
2019-12-16  0:36     ` Finn Thain
2019-12-20  4:21       ` Finn Thain
2019-12-20 11:38 ` Aleksandar Markovic
2019-12-20 12:03   ` Aleksandar Markovic
2019-12-20 12:54   ` Laurent Vivier
2019-12-20 23:22     ` Finn Thain
2019-12-21 12:03       ` Aleksandar Markovic

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