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Couple of changes, back down on last TSO change, instead make old

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adapter list still capable, but only PCI-E adapters are now enabled.
The user can enable older PCI-X or PCI adapters using ifconfig.
Secondly, Arthur Hartwig pointed out my MSI change was not working
correctly, changed to something that now does. Thanks Arthur.
There was also a fundamental bug in the 82575 MSIX code, the MSIX
registers had to be mapped, opps :)

Rubber-stamped by: Pdeuskar
This commit is contained in:
Jack F Vogel 2007-05-17 00:14:03 +00:00
parent 2fdb65fd82
commit 481dd885f8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=169637
2 changed files with 31 additions and 8 deletions
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37
sys/dev/em/if_em.c
View File

@ -447,7 +447,7 @@ em_attach(device_t dev)
callout_init_mtx(&adapter->timer, &adapter->mtx, 0);
callout_init_mtx(&adapter->tx_fifo_timer, &adapter->mtx, 0);
/* Determine hardware revision */
/* Determine hardware and mac info */
em_identify_hardware(adapter);
/* Setup PCI resources */
@ -2542,16 +2542,28 @@ em_allocate_pci_resources(struct adapter *adapter)
rid = 0x0;
if (adapter->hw.mac.type >= e1000_82575) {
/*
* Eventually this will be used
* Setup MSI/X
*/
rid = PCIR_BAR(EM_MSIX_BAR);
adapter->msix_mem = bus_alloc_resource_any(dev,
SYS_RES_MEMORY, &rid, RF_ACTIVE);
if (!adapter->msix_mem) {
device_printf(dev,"Unable to map MSIX table \n");
return (ENXIO);
}
/*
* Eventually this may be used
* for Multiqueue, for now we will
* just use one vector.
*
* val = pci_msix_count(dev);
*/
val = pci_msix_count(dev);
val = 1;
if ((val) && pci_alloc_msix(dev, &val) == 0) {
rid = 1;
adapter->msi = 1;
}
} else if (adapter->hw.bus.type == e1000_bus_type_pci_express) {
} else if (adapter->hw.mac.type > e1000_82571) {
val = pci_msi_count(dev);
if (val == 1 && pci_alloc_msi(dev, &val) == 0) {
rid = 1;
@ -2646,7 +2658,11 @@ em_free_pci_resources(struct adapter *adapter)
if (adapter->res_interrupt != NULL)
bus_release_resource(dev, SYS_RES_IRQ,
0, adapter->res_interrupt);
adapter->msi ? 1 : 0, adapter->res_interrupt);
if (adapter->msix_mem != NULL)
bus_release_resource(dev, SYS_RES_MEMORY,
PCIR_BAR(EM_MSIX_BAR), adapter->msix_mem);
if (adapter->msi)
pci_release_msi(dev);
@ -2769,11 +2785,16 @@ em_setup_interface(device_t dev, struct adapter *adapter)
ifp->if_capenable |= IFCAP_HWCSUM | IFCAP_VLAN_HWCSUM;
}
/* Enable TSO for PCI Express adapters */
if (adapter->hw.bus.type == e1000_bus_type_pci_express) {
/* Identify TSO capable adapters */
if ((adapter->hw.mac.type > e1000_82544) &&
(adapter->hw.mac.type != e1000_82547))
ifp->if_capabilities |= IFCAP_TSO4;
/*
* By default only enable on PCI-E, this
* can be overriden by ifconfig.
*/
if (adapter->hw.mac.type >= e1000_82571)
ifp->if_capenable |= IFCAP_TSO4;
}
/*
* Tell the upper layer(s) we support long frames.

2
sys/dev/em/if_em.h
View File

@ -209,6 +209,7 @@ POSSIBILITY OF SUCH DAMAGE.
#define EM_BAR_MEM_TYPE_MASK 0x00000006
#define EM_BAR_MEM_TYPE_32BIT 0x00000000
#define EM_BAR_MEM_TYPE_64BIT 0x00000004
#define EM_MSIX_BAR 3 /* On 82575 */
/* Defines for printing debug information */
#define DEBUG_INIT 0
@ -263,6 +264,7 @@ struct adapter {
struct device *dev;
struct resource *res_memory;
struct resource *flash_mem;
struct resource *msix_mem;
struct resource *res_ioport;
struct resource *res_interrupt;
void *int_handler_tag;