wil6210: support devices with different PCIe bar size

wil6210 devices can have different PCIe bar size, hence get the
bar size from PCIe device instead of using a constant bar size.

Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

diff --git a/drivers/net/wireless/ath/wil6210/ioctl.c b/drivers/net/wireless/ath/wil6210/ioctl.c
index 630380078236db718590da145ea1f56a4188d151..1c49ad8f9478075848f6077c45a581c23b08b9dd 100644 (file)
--- a/drivers/net/wireless/ath/wil6210/ioctl.c
+++ b/drivers/net/wireless/ath/wil6210/ioctl.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014 Qualcomm Atheros, Inc.
+ * Copyright (c) 2014,2017 Qualcomm Atheros, Inc.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -46,7 +46,7 @@ static void __iomem *wil_ioc_addr(struct wil6210_priv *wil, uint32_t addr,
        }
 
        off = a - wil->csr;
-       if (size >= WIL6210_MEM_SIZE - off) {
+       if (size >= wil->bar_size - off) {
                wil_err(wil, "Requested block does not fit into memory: "
                        "off = 0x%08x size = 0x%08x\n", off, size);
                return NULL;

diff --git a/drivers/net/wireless/ath/wil6210/pcie_bus.c b/drivers/net/wireless/ath/wil6210/pcie_bus.c
index 33bd85cea05e958c57b34c82bf1bf8d286ef5abd..bf9f26563c486f1147c62cd83fc1da7591c0e85e 100644 (file)
--- a/drivers/net/wireless/ath/wil6210/pcie_bus.c
+++ b/drivers/net/wireless/ath/wil6210/pcie_bus.c
@@ -200,16 +200,18 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
                .ramdump = wil_platform_rop_ramdump,
                .fw_recovery = wil_platform_rop_fw_recovery,
        };
+       u32 bar_size = pci_resource_len(pdev, 0);
 
        /* check HW */
        dev_info(&pdev->dev, WIL_NAME
-                " device found [%04x:%04x] (rev %x)\n",
-                (int)pdev->vendor, (int)pdev->device, (int)pdev->revision);
-
-       if (pci_resource_len(pdev, 0) != WIL6210_MEM_SIZE) {
-               dev_err(&pdev->dev, "Not " WIL_NAME "? "
-                       "BAR0 size is %lu while expecting %lu\n",
-                       (ulong)pci_resource_len(pdev, 0), WIL6210_MEM_SIZE);
+                " device found [%04x:%04x] (rev %x) bar size 0x%x\n",
+                (int)pdev->vendor, (int)pdev->device, (int)pdev->revision,
+                bar_size);
+
+       if ((bar_size < WIL6210_MIN_MEM_SIZE) ||
+           (bar_size > WIL6210_MAX_MEM_SIZE)) {
+               dev_err(&pdev->dev, "Unexpected BAR0 size 0x%x\n",
+                       bar_size);
                return -ENODEV;
        }
 
@@ -222,6 +224,7 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
        wil->pdev = pdev;
        pci_set_drvdata(pdev, wil);
+       wil->bar_size = bar_size;
        /* rollback to if_free */
 
        wil->platform_handle =

diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index fe942bae29786a65660c1d075b32aaab688e3368..ca532c777b5651169d9774539fb28654f4ab99a6 100644 (file)
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -58,7 +58,8 @@ static inline u32 WIL_GET_BITS(u32 x, int b0, int b1)
        return (x >> b0) & ((1 << (b1 - b0 + 1)) - 1);
 }
 
-#define WIL6210_MEM_SIZE (2*1024*1024UL)
+#define WIL6210_MIN_MEM_SIZE (2 * 1024 * 1024UL)
+#define WIL6210_MAX_MEM_SIZE (4 * 1024 * 1024UL)
 
 #define WIL_TX_Q_LEN_DEFAULT           (4000)
 #define WIL_RX_RING_SIZE_ORDER_DEFAULT (10)
@@ -599,6 +600,7 @@ extern u8 led_polarity;
 
 struct wil6210_priv {
        struct pci_dev *pdev;
+       u32 bar_size;
        struct wireless_dev *wdev;
        void __iomem *csr;
        DECLARE_BITMAP(status, wil_status_last);

diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index 814c35645b737a3664bd3047de49d4c9fc10fc69..93902cb2e8cf4434e04dba998875a806e0f3bd7a 100644 (file)
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -157,7 +157,7 @@ void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_)
                return NULL;
 
        off = HOSTADDR(ptr);
-       if (off > WIL6210_MEM_SIZE - 4)
+       if (off > wil->bar_size - 4)
                return NULL;
 
        return wil->csr + off;
@@ -177,7 +177,7 @@ void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr)
                return NULL;
 
        off = HOSTADDR(ptr);
-       if (off > WIL6210_MEM_SIZE - 4)
+       if (off > wil->bar_size - 4)
                return NULL;
 
        return wil->csr + off;