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S2IO: Fixes in MSIX related code.

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- Calling store_xmsi_data to store the MSI-X datas during initialization
  in s2io-init_nic function
- Disabling NAPI when MSI-X is enabled
- Freeing sp->entries and sp->s2io_entries in s2io_rem_isr

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Sivakumar Subramani 2007-08-06 05:36:28 -04:00 committed by David S. Miller
parent 8abc4d5b84
commit c77dd43e77
2 changed files with 20 additions and 0 deletions
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19
drivers/net/s2io.c
View file

@ -3892,6 +3892,12 @@ static int s2io_open(struct net_device *dev)
}
}
/* NAPI doesn't work well with MSI(X) */
if (sp->intr_type != INTA) {
if(sp->config.napi)
sp->config.napi = 0;
}
/* Initialize H/W and enable interrupts */
err = s2io_card_up(sp);
if (err) {
@ -6471,6 +6477,7 @@ static void s2io_rem_isr(struct s2io_nic * sp)
{
int cnt = 0;
struct net_device *dev = sp->dev;
struct swStat *stats = &sp->mac_control.stats_info->sw_stat;
if (sp->intr_type == MSI_X) {
int i;
@ -6483,6 +6490,16 @@ static void s2io_rem_isr(struct s2io_nic * sp)
free_irq(vector, arg);
}
kfree(sp->entries);
stats->mem_freed +=
(MAX_REQUESTED_MSI_X * sizeof(struct msix_entry));
kfree(sp->s2io_entries);
stats->mem_freed +=
(MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry));
sp->entries = NULL;
sp->s2io_entries = NULL;
pci_read_config_word(sp->pdev, 0x42, &msi_control);
msi_control &= 0xFFFE; /* Disable MSI */
pci_write_config_word(sp->pdev, 0x42, msi_control);
@ -7377,6 +7394,8 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
dev->addr_len = ETH_ALEN;
memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN);
/* Store the values of the MSIX table in the s2io_nic structure */
store_xmsi_data(sp);
/* reset Nic and bring it to known state */
s2io_reset(sp);

1
drivers/net/s2io.h
View file

@ -415,6 +415,7 @@ struct config_param {
#define INTA 0
#define MSI_X 2
u8 intr_type;
u8 napi;
/* Specifies if Tx Intr is UTILZ or PER_LIST type. */