From ea562de57590c966cd5a75fda8defecd397e6436 Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Mon, 14 Sep 2015 10:20:53 +0000 Subject: qemu: Update to upstream patches (From OE-Core rev: f0189829498e30231d826c9f55aad73e622d076e) Signed-off-by: Richard Purdie --- .../qemu/qemu/smc91c111_fix1.patch | 85 ++++++++++++++++++++++ .../qemu/qemu/smc91c111_fix2.patch | 46 ++++++++++++ .../qemu/qemu/smc91c111_fix3.patch | 33 +++++++++ 3 files changed, 164 insertions(+) create mode 100644 meta/recipes-devtools/qemu/qemu/smc91c111_fix1.patch create mode 100644 meta/recipes-devtools/qemu/qemu/smc91c111_fix2.patch create mode 100644 meta/recipes-devtools/qemu/qemu/smc91c111_fix3.patch (limited to 'meta/recipes-devtools/qemu/qemu') diff --git a/meta/recipes-devtools/qemu/qemu/smc91c111_fix1.patch b/meta/recipes-devtools/qemu/qemu/smc91c111_fix1.patch new file mode 100644 index 0000000000..bd1223a446 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/smc91c111_fix1.patch @@ -0,0 +1,85 @@ +From: Peter Crosthwaite +Subject: [RFT PATCH v1 1/3] net: smc91c111: guard flush_queued_packets() on + can_rx() +Date: Thu, 10 Sep 2015 21:23:43 -0700 + +Check that the core can once again receive packets before asking the +net layer to do a flush. This will make it more convenient to flush +packets when adding new conditions to can_receive. + +Add missing if braces while moving the can_receive() core code. + +Signed-off-by: Peter Crosthwaite + +Upstream-Status: Submitted + +--- + + hw/net/smc91c111.c | 30 ++++++++++++++++++++++-------- + 1 file changed, 22 insertions(+), 8 deletions(-) + +Index: qemu-2.4.0/hw/net/smc91c111.c +=================================================================== +--- qemu-2.4.0.orig/hw/net/smc91c111.c ++++ qemu-2.4.0/hw/net/smc91c111.c +@@ -124,6 +124,24 @@ static void smc91c111_update(smc91c111_s + qemu_set_irq(s->irq, level); + } + ++static int smc91c111_can_receive(smc91c111_state *s) ++{ ++ if ((s->rcr & RCR_RXEN) == 0 || (s->rcr & RCR_SOFT_RST)) { ++ return 1; ++ } ++ if (s->allocated == (1 << NUM_PACKETS) - 1) { ++ return 0; ++ } ++ return 1; ++} ++ ++static inline void smc91c111_flush_queued_packets(smc91c111_state *s) ++{ ++ if (smc91c111_can_receive(s)) { ++ qemu_flush_queued_packets(qemu_get_queue(s->nic)); ++ } ++} ++ + /* Try to allocate a packet. Returns 0x80 on failure. */ + static int smc91c111_allocate_packet(smc91c111_state *s) + { +@@ -185,7 +203,7 @@ static void smc91c111_release_packet(smc + s->allocated &= ~(1 << packet); + if (s->tx_alloc == 0x80) + smc91c111_tx_alloc(s); +- qemu_flush_queued_packets(qemu_get_queue(s->nic)); ++ smc91c111_flush_queued_packets(s); + } + + /* Flush the TX FIFO. */ +@@ -636,15 +654,11 @@ static uint32_t smc91c111_readl(void *op + return val; + } + +-static int smc91c111_can_receive(NetClientState *nc) ++static int smc91c111_can_receive_nc(NetClientState *nc) + { + smc91c111_state *s = qemu_get_nic_opaque(nc); + +- if ((s->rcr & RCR_RXEN) == 0 || (s->rcr & RCR_SOFT_RST)) +- return 1; +- if (s->allocated == (1 << NUM_PACKETS) - 1) +- return 0; +- return 1; ++ return smc91c111_can_receive(s); + } + + static ssize_t smc91c111_receive(NetClientState *nc, const uint8_t *buf, size_t size) +@@ -739,7 +753,7 @@ static const MemoryRegionOps smc91c111_m + static NetClientInfo net_smc91c111_info = { + .type = NET_CLIENT_OPTIONS_KIND_NIC, + .size = sizeof(NICState), +- .can_receive = smc91c111_can_receive, ++ .can_receive = smc91c111_can_receive_nc, + .receive = smc91c111_receive, + }; + diff --git a/meta/recipes-devtools/qemu/qemu/smc91c111_fix2.patch b/meta/recipes-devtools/qemu/qemu/smc91c111_fix2.patch new file mode 100644 index 0000000000..018aed5f80 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/smc91c111_fix2.patch @@ -0,0 +1,46 @@ +From: Peter Crosthwaite +X-Google-Original-From: Peter Crosthwaite +To: qemu-devel@nongnu.org +Cc: peter.maydell@linaro.org, richard.purdie@linuxfoundation.org +Subject: [RFT PATCH v1 2/3] net: smc91c111: gate can_receive() on rx FIFO + having a slot +Date: Thu, 10 Sep 2015 21:23:57 -0700 + +Return false from can_receive() when the FIFO doesn't have a free RX +slot. This fixes a bug in the current code where the allocated buffer +is freed before the fifo pop, triggering a premature flush of queued RX +packets. It also will handle a corner case, where the guest manually +frees the allocated buffer before popping the rx FIFO (hence it is not +enough to just delay the flush_queued_packets()). + +Reported-by: Richard Purdie +Signed-off-by: Peter Crosthwaite + +Upstream-Status: Submitted +--- + + hw/net/smc91c111.c | 4 +++- + 1 file changed, 3 insertions(+), 1 deletion(-) + +Index: qemu-2.4.0/hw/net/smc91c111.c +=================================================================== +--- qemu-2.4.0.orig/hw/net/smc91c111.c ++++ qemu-2.4.0/hw/net/smc91c111.c +@@ -129,7 +129,8 @@ static int smc91c111_can_receive(smc91c1 + if ((s->rcr & RCR_RXEN) == 0 || (s->rcr & RCR_SOFT_RST)) { + return 1; + } +- if (s->allocated == (1 << NUM_PACKETS) - 1) { ++ if (s->allocated == (1 << NUM_PACKETS) - 1 || ++ s->rx_fifo_len == NUM_PACKETS) { + return 0; + } + return 1; +@@ -182,6 +183,7 @@ static void smc91c111_pop_rx_fifo(smc91c + } else { + s->int_level &= ~INT_RCV; + } ++ smc91c111_flush_queued_packets(s); + smc91c111_update(s); + } + diff --git a/meta/recipes-devtools/qemu/qemu/smc91c111_fix3.patch b/meta/recipes-devtools/qemu/qemu/smc91c111_fix3.patch new file mode 100644 index 0000000000..9e865f7f09 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/smc91c111_fix3.patch @@ -0,0 +1,33 @@ +From: Peter Crosthwaite +To: qemu-devel@nongnu.org +Cc: peter.maydell@linaro.org, richard.purdie@linuxfoundation.org +Subject: [RFT PATCH v1 3/3] net: smc91c111: flush packets on RCR register + changes +Date: Thu, 10 Sep 2015 21:24:12 -0700 + +The SOFT_RST or RXEN in the control register can be used as a condition +to unblock the net layer via can_receive(). So check for possible +flushes on RCR changes. This will drop all pending packets on soft +reset or disable which is the functional intent of the can_receive() +logic. + +Signed-off-by: Peter Crosthwaite + +Upstream-Status: Submitted +--- + + hw/net/smc91c111.c | 1 + + 1 file changed, 1 insertion(+) + +Index: qemu-2.4.0/hw/net/smc91c111.c +=================================================================== +--- qemu-2.4.0.orig/hw/net/smc91c111.c ++++ qemu-2.4.0/hw/net/smc91c111.c +@@ -331,6 +331,7 @@ static void smc91c111_writeb(void *opaqu + if (s->rcr & RCR_SOFT_RST) { + smc91c111_reset(DEVICE(s)); + } ++ smc91c111_flush_queued_packets(s); + return; + case 10: case 11: /* RPCR */ + /* Ignored */ -- cgit v1.2.3-54-g00ecf