diff mbox series

[iwl-next,v4,3/5] ice: Initial support for E825C hardware in ice_adapter

Message ID 20240718105253.72997-4-sergey.temerkhanov@intel.com (mailing list archive)
State Awaiting Upstream
Delegated to: Netdev Maintainers
Headers show
Series Replace auxbus with ice_adapter in the PTP support code | expand

Checks

Context Check Description
netdev/tree_selection success Guessing tree name failed - patch did not apply

Commit Message

Sergey Temerkhanov July 18, 2024, 10:52 a.m. UTC
Address E825C devices by PCI ID since dual IP core configurations
need 1 ice_adapter for both devices.

Signed-off-by: Sergey Temerkhanov <sergey.temerkhanov@intel.com>
---
 drivers/net/ethernet/intel/ice/ice_adapter.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

Comments

Simon Horman July 18, 2024, 12:56 p.m. UTC | #1
On Thu, Jul 18, 2024 at 12:52:51PM +0200, Sergey Temerkhanov wrote:
> Address E825C devices by PCI ID since dual IP core configurations
> need 1 ice_adapter for both devices.
> 
> Signed-off-by: Sergey Temerkhanov <sergey.temerkhanov@intel.com>

Reviewed-by: Simon Horman <horms@kernel.org>
Jacob Keller July 23, 2024, 11:15 p.m. UTC | #2
On 7/18/2024 3:52 AM, Sergey Temerkhanov wrote:
> Address E825C devices by PCI ID since dual IP core configurations
> need 1 ice_adapter for both devices.
> 
> Signed-off-by: Sergey Temerkhanov <sergey.temerkhanov@intel.com>
> ---
>  drivers/net/ethernet/intel/ice/ice_adapter.c | 16 +++++++++++++---
>  1 file changed, 13 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/ice/ice_adapter.c b/drivers/net/ethernet/intel/ice/ice_adapter.c
> index ad84d8ad49a6..903d0bc9e3e5 100644
> --- a/drivers/net/ethernet/intel/ice/ice_adapter.c
> +++ b/drivers/net/ethernet/intel/ice/ice_adapter.c
> @@ -9,12 +9,14 @@
>  #include <linux/spinlock.h>
>  #include <linux/xarray.h>
>  #include "ice_adapter.h"
> +#include "ice.h"
>  
>  static DEFINE_XARRAY(ice_adapters);
>  static DEFINE_MUTEX(ice_adapters_mutex);
>  
>  /* PCI bus number is 8 bits. Slot is 5 bits. Domain can have the rest. */
>  #define INDEX_FIELD_DOMAIN GENMASK(BITS_PER_LONG - 1, 13)
> +#define INDEX_FIELD_DEV    GENMASK(31, 16)
>  #define INDEX_FIELD_BUS    GENMASK(12, 5)
>  #define INDEX_FIELD_SLOT   GENMASK(4, 0)
>  
> @@ -24,9 +26,17 @@ static unsigned long ice_adapter_index(const struct pci_dev *pdev)
>  
>  	WARN_ON(domain > FIELD_MAX(INDEX_FIELD_DOMAIN));
>  
> -	return FIELD_PREP(INDEX_FIELD_DOMAIN, domain) |
> -	       FIELD_PREP(INDEX_FIELD_BUS,    pdev->bus->number) |
> -	       FIELD_PREP(INDEX_FIELD_SLOT,   PCI_SLOT(pdev->devfn));
> +	switch (pdev->device) {
> +	case ICE_DEV_ID_E825C_BACKPLANE:
> +	case ICE_DEV_ID_E825C_QSFP:
> +	case ICE_DEV_ID_E825C_SFP:
> +	case ICE_DEV_ID_E825C_SGMII:
> +		return FIELD_PREP(INDEX_FIELD_DEV, pdev->device);
> +	default:
> +		return FIELD_PREP(INDEX_FIELD_DOMAIN, domain) |
> +		       FIELD_PREP(INDEX_FIELD_BUS,    pdev->bus->number) |
> +		       FIELD_PREP(INDEX_FIELD_SLOT,   PCI_SLOT(pdev->devfn));
> +	}
>  }


If we extend the ice_adapter to non-PTP uses (like the RSS or other
ideas that were pointed out a while ago). How till those be affected by
this change?

I think it makes sense still, though we may need some specialized
handling if some of those configs don't cross the IP core boundary
(unlike PTP which does).

Thanks,
Jake

>  
>  static struct ice_adapter *ice_adapter_new(void)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/ice/ice_adapter.c b/drivers/net/ethernet/intel/ice/ice_adapter.c
index ad84d8ad49a6..903d0bc9e3e5 100644
--- a/drivers/net/ethernet/intel/ice/ice_adapter.c
+++ b/drivers/net/ethernet/intel/ice/ice_adapter.c
@@ -9,12 +9,14 @@ 
 #include <linux/spinlock.h>
 #include <linux/xarray.h>
 #include "ice_adapter.h"
+#include "ice.h"
 
 static DEFINE_XARRAY(ice_adapters);
 static DEFINE_MUTEX(ice_adapters_mutex);
 
 /* PCI bus number is 8 bits. Slot is 5 bits. Domain can have the rest. */
 #define INDEX_FIELD_DOMAIN GENMASK(BITS_PER_LONG - 1, 13)
+#define INDEX_FIELD_DEV    GENMASK(31, 16)
 #define INDEX_FIELD_BUS    GENMASK(12, 5)
 #define INDEX_FIELD_SLOT   GENMASK(4, 0)
 
@@ -24,9 +26,17 @@  static unsigned long ice_adapter_index(const struct pci_dev *pdev)
 
 	WARN_ON(domain > FIELD_MAX(INDEX_FIELD_DOMAIN));
 
-	return FIELD_PREP(INDEX_FIELD_DOMAIN, domain) |
-	       FIELD_PREP(INDEX_FIELD_BUS,    pdev->bus->number) |
-	       FIELD_PREP(INDEX_FIELD_SLOT,   PCI_SLOT(pdev->devfn));
+	switch (pdev->device) {
+	case ICE_DEV_ID_E825C_BACKPLANE:
+	case ICE_DEV_ID_E825C_QSFP:
+	case ICE_DEV_ID_E825C_SFP:
+	case ICE_DEV_ID_E825C_SGMII:
+		return FIELD_PREP(INDEX_FIELD_DEV, pdev->device);
+	default:
+		return FIELD_PREP(INDEX_FIELD_DOMAIN, domain) |
+		       FIELD_PREP(INDEX_FIELD_BUS,    pdev->bus->number) |
+		       FIELD_PREP(INDEX_FIELD_SLOT,   PCI_SLOT(pdev->devfn));
+	}
 }
 
 static struct ice_adapter *ice_adapter_new(void)