2007-01-28 00:10:10

by Jay Cliburn

[permalink] [raw]
Subject: [PATCH 2.6.20-rc5 1/4] atl1: unconditionally enable MSI


From: Luca Tettamanti <[email protected]>

Unconditionally enable MSI in atl1 driver. Also remove some useless
#ifdef since pci_{en,dis}able_msi() are no-op when MSI support is not
configured in.

Signed-off-by: Luca Tettamanti <[email protected]>
Signed-off-by: Jay Cliburn <[email protected]>
---

drivers/net/atl1/atl1.h | 1 -
drivers/net/atl1/atl1_main.c | 22 +++++++---------------
drivers/net/atl1/atl1_param.c | 13 -------------
3 files changed, 7 insertions(+), 29 deletions(-)

diff --git a/drivers/net/atl1/atl1.h b/drivers/net/atl1/atl1.h
index 1d13e8f..0b30e1c 100644
--- a/drivers/net/atl1/atl1.h
+++ b/drivers/net/atl1/atl1.h
@@ -281,7 +281,6 @@ struct atl1_adapter {
struct atl1_smb smb;
struct atl1_cmb cmb;

- int enable_msi;
u32 pci_state[16];
};

diff --git a/drivers/net/atl1/atl1_main.c b/drivers/net/atl1/atl1_main.c
index c0b1555..68e6cd1 100644
--- a/drivers/net/atl1/atl1_main.c
+++ b/drivers/net/atl1/atl1_main.c
@@ -1793,18 +1793,12 @@ s32 atl1_up(struct atl1_adapter *adapter)
goto err_up;
}

-#ifdef CONFIG_PCI_MSI
- if (adapter->enable_msi) {
- err = pci_enable_msi(adapter->pdev);
- if (err) {
- dev_info(&adapter->pdev->dev, "Unable to enable MSI: %d\n", err);
- adapter->enable_msi = 0;
- }
- }
-#endif
- if (!adapter->enable_msi)
+ err = pci_enable_msi(adapter->pdev);
+ if (err) {
+ dev_info(&adapter->pdev->dev, "Unable to enable MSI: %d\n", err);
irq_flags |= IRQF_SHARED;
-
+ }
+
err = request_irq(adapter->pdev->irq, &atl1_intr, irq_flags,
netdev->name, netdev);
if (unlikely(err))
@@ -1821,6 +1815,7 @@ s32 atl1_up(struct atl1_adapter *adapter)
free_irq(adapter->pdev->irq, netdev);

err_up:
+ pci_disable_msi(adapter->pdev);
/* free rx_buffers */
atl1_clean_rx_ring(adapter);
return err;
@@ -1836,10 +1831,7 @@ void atl1_down(struct atl1_adapter *adapter)

atl1_irq_disable(adapter);
free_irq(adapter->pdev->irq, netdev);
-#ifdef CONFIG_PCI_MSI
- if (adapter->enable_msi)
- pci_disable_msi(adapter->pdev);
-#endif
+ pci_disable_msi(adapter->pdev);
atl1_reset_hw(&adapter->hw);
adapter->cmb.cmb->int_stats = 0;

diff --git a/drivers/net/atl1/atl1_param.c b/drivers/net/atl1/atl1_param.c
index 4732f43..caa2d83 100644
--- a/drivers/net/atl1/atl1_param.c
+++ b/drivers/net/atl1/atl1_param.c
@@ -68,10 +68,6 @@ static int num_flash_vendor = 0;
module_param_array_named(flash_vendor, flash_vendor, int, &num_flash_vendor, 0);
MODULE_PARM_DESC(flash_vendor, "SPI flash vendor");

-int enable_msi;
-module_param(enable_msi, int, 0444);
-MODULE_PARM_DESC(enable_msi, "Enable PCI MSI");
-
#define DEFAULT_INT_MOD_CNT 100 /* 200us */
#define MAX_INT_MOD_CNT 65000
#define MIN_INT_MOD_CNT 50
@@ -211,13 +207,4 @@ void __devinit atl1_check_options(struct atl1_adapter *adapter)
adapter->hw.flash_vendor = (u8) (opt.def);
}
}
-
- { /* PCI MSI usage */
-
-#ifdef CONFIG_PCI_MSI
- adapter->enable_msi = enable_msi;
-#else
- adapter->enable_msi = 0;
-#endif
- }
}



Luca
--
Inquietudine sintetica
Solo, davanti all'ignoto
Tienimi stretto a te


2007-01-28 02:06:49

by Jay Cliburn

[permalink] [raw]
Subject: Re: [PATCH 2.6.20-rc5 1/4] atl1: unconditionally enable MSI

The subject line on all four of the current crop of atl1 patches is
incorrect; they were generated against *2.6.20-rc6*, not rc5. I apologize
for the error.

Jay

2007-01-30 14:41:43

by Jeff Garzik

[permalink] [raw]
Subject: Re: [PATCH 2.6.20-rc5 1/4] atl1: unconditionally enable MSI

Jay Cliburn wrote:
> From: Luca Tettamanti <[email protected]>
>
> Unconditionally enable MSI in atl1 driver. Also remove some useless
> #ifdef since pci_{en,dis}able_msi() are no-op when MSI support is not
> configured in.
>
> Signed-off-by: Luca Tettamanti <[email protected]>
> Signed-off-by: Jay Cliburn <[email protected]>

applied patches 1-4 to #atl1

The only remaining problem with your patches is that they added trailing
whitespace:


[jgarzik@pretzel netdev-2.6]$ git-am --signoff --utf8 /g/tmp/mbox

Applying 'atl1: unconditionally enable MSI'

Adds trailing whitespace.
.dotest/patch:44:
warning: 1 line adds trailing whitespaces.
Wrote tree dc738e9c0b8becc628dc3bdbbcb02988b671065a
Committed: ab248491d6e576228710950e3d21ea0731aa2de4

Applying 'atl1: add missing include dma-mapping.h'

Wrote tree 5fb3cad9771ccb59d7e3610367bb69bb33b3b45d
Committed: 13b6ae2c23523e808530681e16998220150c881c

Applying 'atl1: properly use CONFIG_PM'

Wrote tree 9fb334ce776443d59039aaedcd6a5a09790a3d67
Committed: 01e8d5606f0732222baf9ec8664d1e833ac428ca

Applying 'atl1: incorporate reviewer comments'

Adds trailing whitespace.
.dotest/patch:197:static int atl1_get_settings(struct net_device *netdev,
Adds trailing whitespace.
.dotest/patch:230:static int atl1_set_settings(struct net_device *netdev,
Adds trailing whitespace.
.dotest/patch:240: printk(KERN_DEBUG "%s: ethtool shutting
down adapter\n",
Adds trailing whitespace.
.dotest/patch:258: } else
Adds trailing whitespace.
.dotest/patch:292:
warning: squelched 10 whitespace errors
warning: 15 lines add trailing whitespaces.
Wrote tree 75ab9e0e86a96951c542b1f6e7557c917ca6799b
Committed: 37e12a2bd50cb62add05b97fc6661d21782f232b