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add a backoff algorithm when nacks are received by devices

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add seperate response buffers and request queue sizes in bus bridge
add delay to respond to a nack in the bus bridge

src/dev/i8254xGBe.cc:
src/dev/ide_ctrl.cc:
src/dev/ns_gige.cc:
src/dev/pcidev.hh:
src/dev/sinic.cc:
    add backoff delay parameters
src/dev/io_device.cc:
src/dev/io_device.hh:
    add a backoff algorithm when nacks are received.
src/mem/bridge.cc:
src/mem/bridge.hh:
    add seperate response buffers and request queue sizes
    add a new parameters to specify how long before a nack in ready to go after a packet that needs to be nacked is received
src/mem/cache/cache_impl.hh:
    assert on the
src/mem/tport.cc:
    add a friendly assert to make sure the packet was inserted into the list

--HG--
extra : convert_revision : 3595ad932015a4ce2bb72772da7850ad91bd09b1
This commit is contained in:
Ali Saidi
2007-05-09 18:20:24 -04:00
parent 37b45e3c8c
commit 3c608bf765
11 changed files with 250 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/dev/ide_ctrl.cc
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@@ -751,6 +751,8 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(IdeController)
SimObjectParam<System *> system;
SimObjectParam<Platform *> platform;
Param<Tick> min_backoff_delay;
Param<Tick> max_backoff_delay;
SimObjectParam<PciConfigData *> configdata;
Param<uint32_t> pci_bus;
Param<uint32_t> pci_dev;
@@ -765,6 +767,8 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(IdeController)
INIT_PARAM(system, "System pointer"),
INIT_PARAM(platform, "Platform pointer"),
INIT_PARAM(min_backoff_delay, "Minimum delay after receving a nack packed"),
INIT_PARAM(max_backoff_delay, "Maximum delay after receving a nack packed"),
INIT_PARAM(configdata, "PCI Config data"),
INIT_PARAM(pci_bus, "PCI bus ID"),
INIT_PARAM(pci_dev, "PCI device number"),
@@ -781,6 +785,8 @@ CREATE_SIM_OBJECT(IdeController)
params->name = getInstanceName();
params->platform = platform;
params->system = system;
params->min_backoff_delay = min_backoff_delay;
params->max_backoff_delay = max_backoff_delay;
params->configData = configdata;
params->busNum = pci_bus;
params->deviceNum = pci_dev;