Re: [PATCH 7/7] accel/qaic: Add AIC200 support

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On 12/20/2024 10:33 AM, Lizhi Hou wrote:

On 12/20/24 09:26, Jeffrey Hugo wrote:
On 12/13/2024 5:49 PM, Lizhi Hou wrote:

On 12/13/24 13:33, Jeffrey Hugo wrote:
+static const struct qaic_device_config aic200_config = {
+    .family = FAMILY_AIC200,
+    .bar_mask = BIT(0) | BIT(1) | BIT(2) | BIT(4),

Will this pass the BAR mask check in init_pci()?

Yes, BITs 0, 1, 2, 4 would be 0x17 and that value is & with 0x3f (masking off upper bits).  The result would be 0x17.

It seems BIT(1) is not expected in init_pci?

     if (bars != (BIT(0) | BIT(2) | BIT(4))) {

I think you are only referencing patch 5, when you should also reference patch 6. This check gets modified in patch 6 -

-	if (bars != (BIT(0) | BIT(2) | BIT(4))) {
- pci_dbg(pdev, "%s: expected BARs 0, 2, and 4 not found in device. Found 0x%x\n",
-			__func__, bars);
+	if (bars != config->bar_mask) {
+		pci_dbg(pdev, "%s: expected BARs %#x not found in device. Found %#x\n",
+			__func__, config->bar_mask, bars);
 		return -EINVAL;
 	}


Do you still see an issue?




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