2015-10-20 11:25:19

by Kalle Valo

[permalink] [raw]
Subject: [PATCH v2] ath10k: add FW API support to test mode

From: Alan Liu <[email protected]>

Add WMI-TLV and FW API support in ath10k testmode.
Ath10k can get right wmi command format from UTF image
to communicate UTF firmware.

Signed-off-by: Alan Liu <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
---
drivers/net/wireless/ath/ath10k/core.c | 4 -
drivers/net/wireless/ath/ath10k/core.h | 5 +
drivers/net/wireless/ath/ath10k/hw.h | 1
drivers/net/wireless/ath/ath10k/testmode.c | 202 ++++++++++++++++++++++++++--
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 14 ++
5 files changed, 205 insertions(+), 21 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 13de3617d5ab..b7a82ae3b3fa 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -568,8 +568,8 @@ static int ath10k_download_fw(struct ath10k *ar, enum ath10k_firmware_mode mode)
}
break;
case ATH10K_FIRMWARE_MODE_UTF:
- data = ar->testmode.utf->data;
- data_len = ar->testmode.utf->size;
+ data = ar->testmode.utf_firmware_data;
+ data_len = ar->testmode.utf_firmware_len;
mode_name = "utf";
break;
default:
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 7cc7cdd56c95..a6371108be9b 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -814,9 +814,12 @@ struct ath10k {
struct {
/* protected by conf_mutex */
const struct firmware *utf;
+ char utf_version[32];
+ const void *utf_firmware_data;
+ size_t utf_firmware_len;
DECLARE_BITMAP(orig_fw_features, ATH10K_FW_FEATURE_COUNT);
enum ath10k_fw_wmi_op_version orig_wmi_op_version;
-
+ enum ath10k_fw_wmi_op_version op_version;
/* protected by data_lock */
bool utf_monitor;
} testmode;
diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 2d87737e35ff..0c8ea0226684 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -94,6 +94,7 @@ enum qca6174_chip_id_rev {
#define ATH10K_FW_API5_FILE "firmware-5.bin"

#define ATH10K_FW_UTF_FILE "utf.bin"
+#define ATH10K_FW_UTF_API2_FILE "utf-2.bin"

/* includes also the null byte */
#define ATH10K_FIRMWARE_MAGIC "QCA-ATH10K"
diff --git a/drivers/net/wireless/ath/ath10k/testmode.c b/drivers/net/wireless/ath/ath10k/testmode.c
index b084f88da102..1d5a2fdcbf56 100644
--- a/drivers/net/wireless/ath/ath10k/testmode.c
+++ b/drivers/net/wireless/ath/ath10k/testmode.c
@@ -139,11 +139,181 @@ static int ath10k_tm_cmd_get_version(struct ath10k *ar, struct nlattr *tb[])
return cfg80211_testmode_reply(skb);
}

-static int ath10k_tm_cmd_utf_start(struct ath10k *ar, struct nlattr *tb[])
+static int ath10k_tm_fetch_utf_firmware_api_2(struct ath10k *ar)
+{
+ size_t len, magic_len, ie_len;
+ struct ath10k_fw_ie *hdr;
+ char filename[100];
+ __le32 *version;
+ const u8 *data;
+ int ie_id, ret;
+
+ snprintf(filename, sizeof(filename), "%s/%s",
+ ar->hw_params.fw.dir, ATH10K_FW_UTF_API2_FILE);
+
+ /* load utf firmware image */
+ ret = request_firmware(&ar->testmode.utf, filename, ar->dev);
+ if (ret) {
+ ath10k_warn(ar, "failed to retrieve utf firmware '%s': %d\n",
+ filename, ret);
+ return ret;
+ }
+
+ data = ar->testmode.utf->data;
+ len = ar->testmode.utf->size;
+
+ /* FIXME: call release_firmware() in error cases */
+
+ /* magic also includes the null byte, check that as well */
+ magic_len = strlen(ATH10K_FIRMWARE_MAGIC) + 1;
+
+ if (len < magic_len) {
+ ath10k_err(ar, "utf firmware file is too small to contain magic\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ if (memcmp(data, ATH10K_FIRMWARE_MAGIC, magic_len) != 0) {
+ ath10k_err(ar, "invalid firmware magic\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ /* jump over the padding */
+ magic_len = ALIGN(magic_len, 4);
+
+ len -= magic_len;
+ data += magic_len;
+
+ /* loop elements */
+ while (len > sizeof(struct ath10k_fw_ie)) {
+ hdr = (struct ath10k_fw_ie *)data;
+
+ ie_id = le32_to_cpu(hdr->id);
+ ie_len = le32_to_cpu(hdr->len);
+
+ len -= sizeof(*hdr);
+ data += sizeof(*hdr);
+
+ if (len < ie_len) {
+ ath10k_err(ar, "invalid length for FW IE %d (%zu < %zu)\n",
+ ie_id, len, ie_len);
+ ret = -EINVAL;
+ goto err;
+ }
+
+ switch (ie_id) {
+ case ATH10K_FW_IE_FW_VERSION:
+ if (ie_len > sizeof(ar->testmode.utf_version) - 1)
+ break;
+
+ memcpy(ar->testmode.utf_version, data, ie_len);
+ ar->testmode.utf_version[ie_len] = '\0';
+
+ ath10k_dbg(ar, ATH10K_DBG_TESTMODE,
+ "testmode found fw utf version %s\n",
+ ar->testmode.utf_version);
+ break;
+ case ATH10K_FW_IE_TIMESTAMP:
+ /* ignore timestamp, but don't warn about it either */
+ break;
+ case ATH10K_FW_IE_FW_IMAGE:
+ ath10k_dbg(ar, ATH10K_DBG_TESTMODE,
+ "testmode found fw image ie (%zd B)\n",
+ ie_len);
+
+ ar->testmode.utf_firmware_data = data;
+ ar->testmode.utf_firmware_len = ie_len;
+ break;
+ case ATH10K_FW_IE_WMI_OP_VERSION:
+ if (ie_len != sizeof(u32))
+ break;
+ version = (__le32 *)data;
+ ar->testmode.op_version = le32_to_cpup(version);
+ ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode found fw ie wmi op version %d\n",
+ ar->testmode.op_version);
+ break;
+ default:
+ ath10k_warn(ar, "Unknown testmode FW IE: %u\n",
+ le32_to_cpu(hdr->id));
+ break;
+ }
+ /* jump over the padding */
+ ie_len = ALIGN(ie_len, 4);
+
+ len -= ie_len;
+ data += ie_len;
+ }
+
+ if (!ar->testmode.utf_firmware_data || !ar->testmode.utf_firmware_len) {
+ ath10k_err(ar, "No ATH10K_FW_IE_FW_IMAGE found\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ return 0;
+
+err:
+ release_firmware(ar->testmode.utf);
+
+ return ret;
+}
+
+static int ath10k_tm_fetch_utf_firmware_api_1(struct ath10k *ar)
{
char filename[100];
int ret;

+ snprintf(filename, sizeof(filename), "%s/%s",
+ ar->hw_params.fw.dir, ATH10K_FW_UTF_FILE);
+
+ /* load utf firmware image */
+ ret = request_firmware(&ar->testmode.utf, filename, ar->dev);
+ if (ret) {
+ ath10k_warn(ar, "failed to retrieve utf firmware '%s': %d\n",
+ filename, ret);
+ return ret;
+ }
+
+ /* We didn't find FW UTF API 1 ("utf.bin") does not advertise
+ * firmware features. Do an ugly hack where we force the firmware
+ * features to match with 10.1 branch so that wmi.c will use the
+ * correct WMI interface.
+ */
+
+ ar->testmode.op_version = ATH10K_FW_WMI_OP_VERSION_10_1;
+ ar->testmode.utf_firmware_data = ar->testmode.utf->data;
+ ar->testmode.utf_firmware_len = ar->testmode.utf->size;
+
+ return 0;
+}
+
+static int ath10k_tm_fetch_firmware(struct ath10k *ar)
+{
+ int ret;
+
+ ret = ath10k_tm_fetch_utf_firmware_api_2(ar);
+ if (ret == 0) {
+ ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode using fw utf api 2");
+ return 0;
+ }
+
+ ret = ath10k_tm_fetch_utf_firmware_api_1(ar);
+ if (ret) {
+ ath10k_err(ar, "failed to fetch utf firmware binary: %d", ret);
+ return ret;
+ }
+
+ ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode using utf api 1");
+
+ return 0;
+}
+
+static int ath10k_tm_cmd_utf_start(struct ath10k *ar, struct nlattr *tb[])
+{
+ const char *ver;
+ int ret;
+
ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode cmd utf start\n");

mutex_lock(&ar->conf_mutex);
@@ -165,36 +335,27 @@ static int ath10k_tm_cmd_utf_start(struct ath10k *ar, struct nlattr *tb[])
goto err;
}

- snprintf(filename, sizeof(filename), "%s/%s",
- ar->hw_params.fw.dir, ATH10K_FW_UTF_FILE);
-
- /* load utf firmware image */
- ret = request_firmware(&ar->testmode.utf, filename, ar->dev);
+ ret = ath10k_tm_fetch_firmware(ar);
if (ret) {
- ath10k_warn(ar, "failed to retrieve utf firmware '%s': %d\n",
- filename, ret);
+ ath10k_err(ar, "failed to fetch UTF firmware: %d", ret);
goto err;
}

spin_lock_bh(&ar->data_lock);
-
ar->testmode.utf_monitor = true;
-
spin_unlock_bh(&ar->data_lock);
-
BUILD_BUG_ON(sizeof(ar->fw_features) !=
sizeof(ar->testmode.orig_fw_features));

memcpy(ar->testmode.orig_fw_features, ar->fw_features,
sizeof(ar->fw_features));
ar->testmode.orig_wmi_op_version = ar->wmi.op_version;
-
- /* utf.bin firmware image does not advertise firmware features. Do
- * an ugly hack where we force the firmware features so that wmi.c
- * will use the correct WMI interface.
- */
memset(ar->fw_features, 0, sizeof(ar->fw_features));
- ar->wmi.op_version = ATH10K_FW_WMI_OP_VERSION_10_1;
+
+ ar->wmi.op_version = ar->testmode.op_version;
+
+ ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode wmi version %d\n",
+ ar->wmi.op_version);

ret = ath10k_hif_power_up(ar);
if (ret) {
@@ -212,7 +373,12 @@ static int ath10k_tm_cmd_utf_start(struct ath10k *ar, struct nlattr *tb[])

ar->state = ATH10K_STATE_UTF;

- ath10k_info(ar, "UTF firmware started\n");
+ if (strlen(ar->testmode.utf_version) > 0)
+ ver = ar->testmode.utf_version;
+ else
+ ver = "API 1";
+
+ ath10k_info(ar, "UTF firmware %s started\n", ver);

mutex_unlock(&ar->conf_mutex);

diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index 8f835480a62c..6fbd17b69469 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -23,6 +23,7 @@
#include "wmi-ops.h"
#include "wmi-tlv.h"
#include "p2p.h"
+#include "testmode.h"

/***************/
/* TLV helpers */
@@ -419,6 +420,7 @@ static void ath10k_wmi_tlv_op_rx(struct ath10k *ar, struct sk_buff *skb)
{
struct wmi_cmd_hdr *cmd_hdr;
enum wmi_tlv_event_id id;
+ bool consumed;

cmd_hdr = (struct wmi_cmd_hdr *)skb->data;
id = MS(__le32_to_cpu(cmd_hdr->cmd_id), WMI_CMD_HDR_CMD_ID);
@@ -428,6 +430,18 @@ static void ath10k_wmi_tlv_op_rx(struct ath10k *ar, struct sk_buff *skb)

trace_ath10k_wmi_event(ar, id, skb->data, skb->len);

+ consumed = ath10k_tm_event_wmi(ar, id, skb);
+
+ /* Ready event must be handled normally also in UTF mode so that we
+ * know the UTF firmware has booted, others we are just bypass WMI
+ * events to testmode.
+ */
+ if (consumed && id != WMI_TLV_READY_EVENTID) {
+ ath10k_dbg(ar, ATH10K_DBG_WMI,
+ "wmi tlv testmode consumed 0x%x\n", id);
+ goto out;
+ }
+
switch (id) {
case WMI_TLV_MGMT_RX_EVENTID:
ath10k_wmi_event_mgmt_rx(ar, skb);



2015-10-20 19:31:13

by Manikanta

[permalink] [raw]
Subject: Re: [PATCH v2] ath10k: add FW API support to test mode



On 10/20/2015 04:55 PM, Kalle Valo wrote:
> From: Alan Liu <[email protected]>
>
> Add WMI-TLV and FW API support in ath10k testmode.
> Ath10k can get right wmi command format from UTF image
> to communicate UTF firmware.
>
> Signed-off-by: Alan Liu <[email protected]>
> Signed-off-by: Kalle Valo <[email protected]>
> ---
> drivers/net/wireless/ath/ath10k/core.c | 4 -
> drivers/net/wireless/ath/ath10k/core.h | 5 +
> drivers/net/wireless/ath/ath10k/hw.h | 1
> drivers/net/wireless/ath/ath10k/testmode.c | 202 ++++++++++++++++++++++++++--
> drivers/net/wireless/ath/ath10k/wmi-tlv.c | 14 ++
> 5 files changed, 205 insertions(+), 21 deletions(-)
>
> diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
> index 13de3617d5ab..b7a82ae3b3fa 100644
> --- a/drivers/net/wireless/ath/ath10k/core.c
> +++ b/drivers/net/wireless/ath/ath10k/core.c
> @@ -568,8 +568,8 @@ static int ath10k_download_fw(struct ath10k *ar, enum ath10k_firmware_mode mode)
> }
> break;
> case ATH10K_FIRMWARE_MODE_UTF:
> - data = ar->testmode.utf->data;
> - data_len = ar->testmode.utf->size;
> + data = ar->testmode.utf_firmware_data;
> + data_len = ar->testmode.utf_firmware_len;
> mode_name = "utf";
> break;
> default:
> diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
> index 7cc7cdd56c95..a6371108be9b 100644
> --- a/drivers/net/wireless/ath/ath10k/core.h
> +++ b/drivers/net/wireless/ath/ath10k/core.h
> @@ -814,9 +814,12 @@ struct ath10k {
> struct {
> /* protected by conf_mutex */
> const struct firmware *utf;
> + char utf_version[32];
> + const void *utf_firmware_data;
> + size_t utf_firmware_len;
> DECLARE_BITMAP(orig_fw_features, ATH10K_FW_FEATURE_COUNT);
> enum ath10k_fw_wmi_op_version orig_wmi_op_version;
> -
> + enum ath10k_fw_wmi_op_version op_version;
> /* protected by data_lock */
> bool utf_monitor;
> } testmode;
> diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
> index 2d87737e35ff..0c8ea0226684 100644
> --- a/drivers/net/wireless/ath/ath10k/hw.h
> +++ b/drivers/net/wireless/ath/ath10k/hw.h
> @@ -94,6 +94,7 @@ enum qca6174_chip_id_rev {
> #define ATH10K_FW_API5_FILE "firmware-5.bin"
>
> #define ATH10K_FW_UTF_FILE "utf.bin"
> +#define ATH10K_FW_UTF_API2_FILE "utf-2.bin"
>
> /* includes also the null byte */
> #define ATH10K_FIRMWARE_MAGIC "QCA-ATH10K"
> diff --git a/drivers/net/wireless/ath/ath10k/testmode.c b/drivers/net/wireless/ath/ath10k/testmode.c
> index b084f88da102..1d5a2fdcbf56 100644
> --- a/drivers/net/wireless/ath/ath10k/testmode.c
> +++ b/drivers/net/wireless/ath/ath10k/testmode.c
> @@ -139,11 +139,181 @@ static int ath10k_tm_cmd_get_version(struct ath10k *ar, struct nlattr *tb[])
> return cfg80211_testmode_reply(skb);
> }
>
> -static int ath10k_tm_cmd_utf_start(struct ath10k *ar, struct nlattr *tb[])
> +static int ath10k_tm_fetch_utf_firmware_api_2(struct ath10k *ar)
> +{
> + size_t len, magic_len, ie_len;
> + struct ath10k_fw_ie *hdr;
> + char filename[100];
> + __le32 *version;
> + const u8 *data;
> + int ie_id, ret;
> +
> + snprintf(filename, sizeof(filename), "%s/%s",
> + ar->hw_params.fw.dir, ATH10K_FW_UTF_API2_FILE);
> +
> + /* load utf firmware image */
> + ret = request_firmware(&ar->testmode.utf, filename, ar->dev);
> + if (ret) {
> + ath10k_warn(ar, "failed to retrieve utf firmware '%s': %d\n",
> + filename, ret);
> + return ret;
> + }
> +
> + data = ar->testmode.utf->data;
> + len = ar->testmode.utf->size;
> +
> + /* FIXME: call release_firmware() in error cases */
> +
> + /* magic also includes the null byte, check that as well */
> + magic_len = strlen(ATH10K_FIRMWARE_MAGIC) + 1;
> +
> + if (len < magic_len) {
> + ath10k_err(ar, "utf firmware file is too small to contain magic\n");
> + ret = -EINVAL;
> + goto err;
> + }
> +
> + if (memcmp(data, ATH10K_FIRMWARE_MAGIC, magic_len) != 0) {
> + ath10k_err(ar, "invalid firmware magic\n");
> + ret = -EINVAL;
> + goto err;
> + }
> +
> + /* jump over the padding */
> + magic_len = ALIGN(magic_len, 4);
> +
> + len -= magic_len;
> + data += magic_len;
> +
> + /* loop elements */
> + while (len > sizeof(struct ath10k_fw_ie)) {
> + hdr = (struct ath10k_fw_ie *)data;
> +
> + ie_id = le32_to_cpu(hdr->id);
> + ie_len = le32_to_cpu(hdr->len);
> +
> + len -= sizeof(*hdr);
> + data += sizeof(*hdr);
> +
> + if (len < ie_len) {
> + ath10k_err(ar, "invalid length for FW IE %d (%zu < %zu)\n",
> + ie_id, len, ie_len);
> + ret = -EINVAL;
> + goto err;
> + }
> +
> + switch (ie_id) {
> + case ATH10K_FW_IE_FW_VERSION:

Something like ATH10K_UTF_IE_FW_VERSION or ATH10K_TESTMODE_IE_FW_VERSION
would be less confusing and better, isn't it?

> + if (ie_len > sizeof(ar->testmode.utf_version) - 1)
> + break;
> +
> + memcpy(ar->testmode.utf_version, data, ie_len);
> + ar->testmode.utf_version[ie_len] = '\0';
> +
> + ath10k_dbg(ar, ATH10K_DBG_TESTMODE,
> + "testmode found fw utf version %s\n",
> + ar->testmode.utf_version);
> + break;
> + case ATH10K_FW_IE_TIMESTAMP:

ATH10K_UTF_IE_TIMESTAMP?

> + /* ignore timestamp, but don't warn about it either */
> + break;
> + case ATH10K_FW_IE_FW_IMAGE:

ATH10K_UTF_IE_FW_IMAGE?

> + ath10k_dbg(ar, ATH10K_DBG_TESTMODE,
> + "testmode found fw image ie (%zd B)\n",
> + ie_len);
> +
> + ar->testmode.utf_firmware_data = data;
> + ar->testmode.utf_firmware_len = ie_len;
> + break;
> + case ATH10K_FW_IE_WMI_OP_VERSION:

ATH10K_UTF_IE_WMI_OP_VERSION?

> + if (ie_len != sizeof(u32))
> + break;
> + version = (__le32 *)data;
> + ar->testmode.op_version = le32_to_cpup(version);
> + ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode found fw ie wmi op version %d\n",
> + ar->testmode.op_version);
> + break;
> + default:
> + ath10k_warn(ar, "Unknown testmode FW IE: %u\n",
> + le32_to_cpu(hdr->id));
> + break;
> + }
> + /* jump over the padding */
> + ie_len = ALIGN(ie_len, 4);
> +
> + len -= ie_len;
> + data += ie_len;
> + }
> +
> + if (!ar->testmode.utf_firmware_data || !ar->testmode.utf_firmware_len) {
> + ath10k_err(ar, "No ATH10K_FW_IE_FW_IMAGE found\n");
> + ret = -EINVAL;
> + goto err;
> + }
> +
> + return 0;
> +
> +err:
> + release_firmware(ar->testmode.utf);
> +
> + return ret;
> +}
> +
> +static int ath10k_tm_fetch_utf_firmware_api_1(struct ath10k *ar)
> {
> char filename[100];
> int ret;
>
> + snprintf(filename, sizeof(filename), "%s/%s",
> + ar->hw_params.fw.dir, ATH10K_FW_UTF_FILE);
> +
> + /* load utf firmware image */
> + ret = request_firmware(&ar->testmode.utf, filename, ar->dev);
> + if (ret) {
> + ath10k_warn(ar, "failed to retrieve utf firmware '%s': %d\n",
> + filename, ret);
> + return ret;
> + }
> +
> + /* We didn't find FW UTF API 1 ("utf.bin") does not advertise
> + * firmware features. Do an ugly hack where we force the firmware
> + * features to match with 10.1 branch so that wmi.c will use the
> + * correct WMI interface.
> + */
> +
> + ar->testmode.op_version = ATH10K_FW_WMI_OP_VERSION_10_1;
> + ar->testmode.utf_firmware_data = ar->testmode.utf->data;
> + ar->testmode.utf_firmware_len = ar->testmode.utf->size;
> +
> + return 0;
> +}
> +
> +static int ath10k_tm_fetch_firmware(struct ath10k *ar)
> +{
> + int ret;
> +
> + ret = ath10k_tm_fetch_utf_firmware_api_2(ar);
> + if (ret == 0) {
> + ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode using fw utf api 2");
> + return 0;
> + }
> +
> + ret = ath10k_tm_fetch_utf_firmware_api_1(ar);
> + if (ret) {
> + ath10k_err(ar, "failed to fetch utf firmware binary: %d", ret);
> + return ret;
> + }
> +
> + ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode using utf api 1");
> +
> + return 0;
> +}
> +
> +static int ath10k_tm_cmd_utf_start(struct ath10k *ar, struct nlattr *tb[])
> +{
> + const char *ver;
> + int ret;
> +
> ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode cmd utf start\n");
>
> mutex_lock(&ar->conf_mutex);
> @@ -165,36 +335,27 @@ static int ath10k_tm_cmd_utf_start(struct ath10k *ar, struct nlattr *tb[])
> goto err;
> }
>
> - snprintf(filename, sizeof(filename), "%s/%s",
> - ar->hw_params.fw.dir, ATH10K_FW_UTF_FILE);
> -
> - /* load utf firmware image */
> - ret = request_firmware(&ar->testmode.utf, filename, ar->dev);
> + ret = ath10k_tm_fetch_firmware(ar);
> if (ret) {
> - ath10k_warn(ar, "failed to retrieve utf firmware '%s': %d\n",
> - filename, ret);
> + ath10k_err(ar, "failed to fetch UTF firmware: %d", ret);
> goto err;
> }
>
> spin_lock_bh(&ar->data_lock);
> -
> ar->testmode.utf_monitor = true;
> -
> spin_unlock_bh(&ar->data_lock);
> -
> BUILD_BUG_ON(sizeof(ar->fw_features) !=
> sizeof(ar->testmode.orig_fw_features));
>
> memcpy(ar->testmode.orig_fw_features, ar->fw_features,
> sizeof(ar->fw_features));
> ar->testmode.orig_wmi_op_version = ar->wmi.op_version;
> -
> - /* utf.bin firmware image does not advertise firmware features. Do
> - * an ugly hack where we force the firmware features so that wmi.c
> - * will use the correct WMI interface.
> - */
> memset(ar->fw_features, 0, sizeof(ar->fw_features));
> - ar->wmi.op_version = ATH10K_FW_WMI_OP_VERSION_10_1;
> +
> + ar->wmi.op_version = ar->testmode.op_version;
> +
> + ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode wmi version %d\n",
> + ar->wmi.op_version);
>
> ret = ath10k_hif_power_up(ar);
> if (ret) {
> @@ -212,7 +373,12 @@ static int ath10k_tm_cmd_utf_start(struct ath10k *ar, struct nlattr *tb[])
>
> ar->state = ATH10K_STATE_UTF;
>
> - ath10k_info(ar, "UTF firmware started\n");
> + if (strlen(ar->testmode.utf_version) > 0)
> + ver = ar->testmode.utf_version;
> + else
> + ver = "API 1";
> +
> + ath10k_info(ar, "UTF firmware %s started\n", ver);
>
> mutex_unlock(&ar->conf_mutex);
>
> diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
> index 8f835480a62c..6fbd17b69469 100644
> --- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
> +++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
> @@ -23,6 +23,7 @@
> #include "wmi-ops.h"
> #include "wmi-tlv.h"
> #include "p2p.h"
> +#include "testmode.h"
>
> /***************/
> /* TLV helpers */
> @@ -419,6 +420,7 @@ static void ath10k_wmi_tlv_op_rx(struct ath10k *ar, struct sk_buff *skb)
> {
> struct wmi_cmd_hdr *cmd_hdr;
> enum wmi_tlv_event_id id;
> + bool consumed;
>
> cmd_hdr = (struct wmi_cmd_hdr *)skb->data;
> id = MS(__le32_to_cpu(cmd_hdr->cmd_id), WMI_CMD_HDR_CMD_ID);
> @@ -428,6 +430,18 @@ static void ath10k_wmi_tlv_op_rx(struct ath10k *ar, struct sk_buff *skb)
>
> trace_ath10k_wmi_event(ar, id, skb->data, skb->len);
>
> + consumed = ath10k_tm_event_wmi(ar, id, skb);
> +
> + /* Ready event must be handled normally also in UTF mode so that we
> + * know the UTF firmware has booted, others we are just bypass WMI
> + * events to testmode.
> + */
> + if (consumed && id != WMI_TLV_READY_EVENTID) {
> + ath10k_dbg(ar, ATH10K_DBG_WMI,
> + "wmi tlv testmode consumed 0x%x\n", id);
> + goto out;
> + }
> +
> switch (id) {
> case WMI_TLV_MGMT_RX_EVENTID:
> ath10k_wmi_event_mgmt_rx(ar, skb);
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>

2015-10-21 07:28:09

by Michal Kazior

[permalink] [raw]
Subject: Re: [PATCH v2] ath10k: add FW API support to test mode

On 21 October 2015 at 09:22, Manikanta <[email protected]> wrote:
> On Wednesday 21 October 2015 12:36 PM, Michal Kazior wrote:
>> On 20 October 2015 at 09:01, Manikanta Pubbisetty
>> <[email protected]> wrote:
>>> On 10/20/2015 04:55 PM, Kalle Valo wrote:
>>>>
>>>> From: Alan Liu <[email protected]>
>>>>
>>>> Add WMI-TLV and FW API support in ath10k testmode.
>>>> Ath10k can get right wmi command format from UTF image
>>>> to communicate UTF firmware.
>>>>
>>>> Signed-off-by: Alan Liu <[email protected]>
>>>> Signed-off-by: Kalle Valo <[email protected]>
>>>> ---
[...]
>>>> + /* loop elements */
>>>> + while (len > sizeof(struct ath10k_fw_ie)) {
>>>> + hdr = (struct ath10k_fw_ie *)data;
>>>> +
>>>> + ie_id = le32_to_cpu(hdr->id);
>>>> + ie_len = le32_to_cpu(hdr->len);
>>>> +
>>>> + len -= sizeof(*hdr);
>>>> + data += sizeof(*hdr);
>>>> +
>>>> + if (len < ie_len) {
>>>> + ath10k_err(ar, "invalid length for FW IE %d (%zu
>>>> <
>>>> %zu)\n",
>>>> + ie_id, len, ie_len);
>>>> + ret = -EINVAL;
>>>> + goto err;
>>>> + }
>>>> +
>>>> + switch (ie_id) {
>>>> + case ATH10K_FW_IE_FW_VERSION:
>>>
>>>
>>> Something like ATH10K_UTF_IE_FW_VERSION or ATH10K_TESTMODE_IE_FW_VERSION
>>> would be less confusing and better, isn't it?
>>
>> I don't really see a reason to. UTF is just another main program to
>> run on the device.
>>
>> If anything I would suggest to unify the FW API parsing logic to work
>> with a dedicated structure instead of `struct ath10k` directly, i.e.
>>
>> struct ath10k_fw {
>> void *data;
>> size_t data_len;
>> enum wmi_op_version wmi_op_version;
>> // ...
>> };
>>
>> int ath10k_core_fw_api_parse(struct ath10k *ar,
>> struct ath10k_fw *arfw,
>> struct firmware *fw)
>> {
>> // parse and fill in `arfw`
>> }
>>
>> struct ath10k {
>> // ...
>> struct ath10k_fw fw_normal;
>> struct ath10k_fw fw_utf;
>> // ...
>> };
>>
>>
>> Michał
>
> Hmmm, this way we will have a unified firmware parsing logic. Is this a task
> which can be taken up easily or any other hidden complexities are invloved
> ?.

Decoupling the parsing logic should be rather easy. I don't think
there are any gotchas.


> I mean can we do the changes for current parsing logic and then rework the
> test mode patch ? what is your suggestion ?

If you want to do the unified parsing logic approach you should first
decouple the logic (i.e. make it not fill `struct ath10k` directly)
and then rework the testmode patch on top of that.


Michał

2015-10-29 10:54:21

by Kalle Valo

[permalink] [raw]
Subject: Re: [PATCH v2] ath10k: add FW API support to test mode

Kalle Valo <[email protected]> writes:

> From: Alan Liu <[email protected]>
>
> Add WMI-TLV and FW API support in ath10k testmode.
> Ath10k can get right wmi command format from UTF image
> to communicate UTF firmware.
>
> Signed-off-by: Alan Liu <[email protected]>
> Signed-off-by: Kalle Valo <[email protected]>

Applied, thanks.

--
Kalle Valo

2015-10-21 07:22:36

by Manikanta

[permalink] [raw]
Subject: Re: [PATCH v2] ath10k: add FW API support to test mode


On Wednesday 21 October 2015 12:36 PM, Michal Kazior wrote:
> On 20 October 2015 at 09:01, Manikanta Pubbisetty
> <[email protected]> wrote:
>>
>> On 10/20/2015 04:55 PM, Kalle Valo wrote:
>>> From: Alan Liu <[email protected]>
>>>
>>> Add WMI-TLV and FW API support in ath10k testmode.
>>> Ath10k can get right wmi command format from UTF image
>>> to communicate UTF firmware.
>>>
>>> Signed-off-by: Alan Liu <[email protected]>
>>> Signed-off-by: Kalle Valo <[email protected]>
>>> ---
>>> drivers/net/wireless/ath/ath10k/core.c | 4 -
>>> drivers/net/wireless/ath/ath10k/core.h | 5 +
>>> drivers/net/wireless/ath/ath10k/hw.h | 1
>>> drivers/net/wireless/ath/ath10k/testmode.c | 202
>>> ++++++++++++++++++++++++++--
>>> drivers/net/wireless/ath/ath10k/wmi-tlv.c | 14 ++
>>> 5 files changed, 205 insertions(+), 21 deletions(-)
>>>
>>> diff --git a/drivers/net/wireless/ath/ath10k/core.c
>>> b/drivers/net/wireless/ath/ath10k/core.c
>>> index 13de3617d5ab..b7a82ae3b3fa 100644
>>> --- a/drivers/net/wireless/ath/ath10k/core.c
>>> +++ b/drivers/net/wireless/ath/ath10k/core.c
>>> @@ -568,8 +568,8 @@ static int ath10k_download_fw(struct ath10k *ar, enum
>>> ath10k_firmware_mode mode)
>>> }
>>> break;
>>> case ATH10K_FIRMWARE_MODE_UTF:
>>> - data = ar->testmode.utf->data;
>>> - data_len = ar->testmode.utf->size;
>>> + data = ar->testmode.utf_firmware_data;
>>> + data_len = ar->testmode.utf_firmware_len;
>>> mode_name = "utf";
>>> break;
>>> default:
>>> diff --git a/drivers/net/wireless/ath/ath10k/core.h
>>> b/drivers/net/wireless/ath/ath10k/core.h
>>> index 7cc7cdd56c95..a6371108be9b 100644
>>> --- a/drivers/net/wireless/ath/ath10k/core.h
>>> +++ b/drivers/net/wireless/ath/ath10k/core.h
>>> @@ -814,9 +814,12 @@ struct ath10k {
>>> struct {
>>> /* protected by conf_mutex */
>>> const struct firmware *utf;
>>> + char utf_version[32];
>>> + const void *utf_firmware_data;
>>> + size_t utf_firmware_len;
>>> DECLARE_BITMAP(orig_fw_features, ATH10K_FW_FEATURE_COUNT);
>>> enum ath10k_fw_wmi_op_version orig_wmi_op_version;
>>> -
>>> + enum ath10k_fw_wmi_op_version op_version;
>>> /* protected by data_lock */
>>> bool utf_monitor;
>>> } testmode;
>>> diff --git a/drivers/net/wireless/ath/ath10k/hw.h
>>> b/drivers/net/wireless/ath/ath10k/hw.h
>>> index 2d87737e35ff..0c8ea0226684 100644
>>> --- a/drivers/net/wireless/ath/ath10k/hw.h
>>> +++ b/drivers/net/wireless/ath/ath10k/hw.h
>>> @@ -94,6 +94,7 @@ enum qca6174_chip_id_rev {
>>> #define ATH10K_FW_API5_FILE "firmware-5.bin"
>>>
>>> #define ATH10K_FW_UTF_FILE "utf.bin"
>>> +#define ATH10K_FW_UTF_API2_FILE "utf-2.bin"
>>>
>>> /* includes also the null byte */
>>> #define ATH10K_FIRMWARE_MAGIC "QCA-ATH10K"
>>> diff --git a/drivers/net/wireless/ath/ath10k/testmode.c
>>> b/drivers/net/wireless/ath/ath10k/testmode.c
>>> index b084f88da102..1d5a2fdcbf56 100644
>>> --- a/drivers/net/wireless/ath/ath10k/testmode.c
>>> +++ b/drivers/net/wireless/ath/ath10k/testmode.c
>>> @@ -139,11 +139,181 @@ static int ath10k_tm_cmd_get_version(struct ath10k
>>> *ar, struct nlattr *tb[])
>>> return cfg80211_testmode_reply(skb);
>>> }
>>>
>>> -static int ath10k_tm_cmd_utf_start(struct ath10k *ar, struct nlattr
>>> *tb[])
>>> +static int ath10k_tm_fetch_utf_firmware_api_2(struct ath10k *ar)
>>> +{
>>> + size_t len, magic_len, ie_len;
>>> + struct ath10k_fw_ie *hdr;
>>> + char filename[100];
>>> + __le32 *version;
>>> + const u8 *data;
>>> + int ie_id, ret;
>>> +
>>> + snprintf(filename, sizeof(filename), "%s/%s",
>>> + ar->hw_params.fw.dir, ATH10K_FW_UTF_API2_FILE);
>>> +
>>> + /* load utf firmware image */
>>> + ret = request_firmware(&ar->testmode.utf, filename, ar->dev);
>>> + if (ret) {
>>> + ath10k_warn(ar, "failed to retrieve utf firmware '%s':
>>> %d\n",
>>> + filename, ret);
>>> + return ret;
>>> + }
>>> +
>>> + data = ar->testmode.utf->data;
>>> + len = ar->testmode.utf->size;
>>> +
>>> + /* FIXME: call release_firmware() in error cases */
>>> +
>>> + /* magic also includes the null byte, check that as well */
>>> + magic_len = strlen(ATH10K_FIRMWARE_MAGIC) + 1;
>>> +
>>> + if (len < magic_len) {
>>> + ath10k_err(ar, "utf firmware file is too small to contain
>>> magic\n");
>>> + ret = -EINVAL;
>>> + goto err;
>>> + }
>>> +
>>> + if (memcmp(data, ATH10K_FIRMWARE_MAGIC, magic_len) != 0) {
>>> + ath10k_err(ar, "invalid firmware magic\n");
>>> + ret = -EINVAL;
>>> + goto err;
>>> + }
>>> +
>>> + /* jump over the padding */
>>> + magic_len = ALIGN(magic_len, 4);
>>> +
>>> + len -= magic_len;
>>> + data += magic_len;
>>> +
>>> + /* loop elements */
>>> + while (len > sizeof(struct ath10k_fw_ie)) {
>>> + hdr = (struct ath10k_fw_ie *)data;
>>> +
>>> + ie_id = le32_to_cpu(hdr->id);
>>> + ie_len = le32_to_cpu(hdr->len);
>>> +
>>> + len -= sizeof(*hdr);
>>> + data += sizeof(*hdr);
>>> +
>>> + if (len < ie_len) {
>>> + ath10k_err(ar, "invalid length for FW IE %d (%zu <
>>> %zu)\n",
>>> + ie_id, len, ie_len);
>>> + ret = -EINVAL;
>>> + goto err;
>>> + }
>>> +
>>> + switch (ie_id) {
>>> + case ATH10K_FW_IE_FW_VERSION:
>>
>> Something like ATH10K_UTF_IE_FW_VERSION or ATH10K_TESTMODE_IE_FW_VERSION
>> would be less confusing and better, isn't it?
> I don't really see a reason to. UTF is just another main program to
> run on the device.
>
> If anything I would suggest to unify the FW API parsing logic to work
> with a dedicated structure instead of `struct ath10k` directly, i.e.
>
> struct ath10k_fw {
> void *data;
> size_t data_len;
> enum wmi_op_version wmi_op_version;
> // ...
> };
>
> int ath10k_core_fw_api_parse(struct ath10k *ar,
> struct ath10k_fw *arfw,
> struct firmware *fw)
> {
> // parse and fill in `arfw`
> }
>
> struct ath10k {
> // ...
> struct ath10k_fw fw_normal;
> struct ath10k_fw fw_utf;
> // ...
> };
>
>
> Michał
Hmmm, this way we will have a unified firmware parsing logic. Is this a
task which can be taken up easily or any other hidden complexities are
invloved ?.
I mean can we do the changes for current parsing logic and then rework
the test mode patch ? what is your suggestion ?

-Manikanta

2015-10-21 07:06:24

by Michal Kazior

[permalink] [raw]
Subject: Re: [PATCH v2] ath10k: add FW API support to test mode

On 20 October 2015 at 09:01, Manikanta Pubbisetty
<[email protected]> wrote:
>
>
> On 10/20/2015 04:55 PM, Kalle Valo wrote:
>>
>> From: Alan Liu <[email protected]>
>>
>> Add WMI-TLV and FW API support in ath10k testmode.
>> Ath10k can get right wmi command format from UTF image
>> to communicate UTF firmware.
>>
>> Signed-off-by: Alan Liu <[email protected]>
>> Signed-off-by: Kalle Valo <[email protected]>
>> ---
>> drivers/net/wireless/ath/ath10k/core.c | 4 -
>> drivers/net/wireless/ath/ath10k/core.h | 5 +
>> drivers/net/wireless/ath/ath10k/hw.h | 1
>> drivers/net/wireless/ath/ath10k/testmode.c | 202
>> ++++++++++++++++++++++++++--
>> drivers/net/wireless/ath/ath10k/wmi-tlv.c | 14 ++
>> 5 files changed, 205 insertions(+), 21 deletions(-)
>>
>> diff --git a/drivers/net/wireless/ath/ath10k/core.c
>> b/drivers/net/wireless/ath/ath10k/core.c
>> index 13de3617d5ab..b7a82ae3b3fa 100644
>> --- a/drivers/net/wireless/ath/ath10k/core.c
>> +++ b/drivers/net/wireless/ath/ath10k/core.c
>> @@ -568,8 +568,8 @@ static int ath10k_download_fw(struct ath10k *ar, enum
>> ath10k_firmware_mode mode)
>> }
>> break;
>> case ATH10K_FIRMWARE_MODE_UTF:
>> - data = ar->testmode.utf->data;
>> - data_len = ar->testmode.utf->size;
>> + data = ar->testmode.utf_firmware_data;
>> + data_len = ar->testmode.utf_firmware_len;
>> mode_name = "utf";
>> break;
>> default:
>> diff --git a/drivers/net/wireless/ath/ath10k/core.h
>> b/drivers/net/wireless/ath/ath10k/core.h
>> index 7cc7cdd56c95..a6371108be9b 100644
>> --- a/drivers/net/wireless/ath/ath10k/core.h
>> +++ b/drivers/net/wireless/ath/ath10k/core.h
>> @@ -814,9 +814,12 @@ struct ath10k {
>> struct {
>> /* protected by conf_mutex */
>> const struct firmware *utf;
>> + char utf_version[32];
>> + const void *utf_firmware_data;
>> + size_t utf_firmware_len;
>> DECLARE_BITMAP(orig_fw_features, ATH10K_FW_FEATURE_COUNT);
>> enum ath10k_fw_wmi_op_version orig_wmi_op_version;
>> -
>> + enum ath10k_fw_wmi_op_version op_version;
>> /* protected by data_lock */
>> bool utf_monitor;
>> } testmode;
>> diff --git a/drivers/net/wireless/ath/ath10k/hw.h
>> b/drivers/net/wireless/ath/ath10k/hw.h
>> index 2d87737e35ff..0c8ea0226684 100644
>> --- a/drivers/net/wireless/ath/ath10k/hw.h
>> +++ b/drivers/net/wireless/ath/ath10k/hw.h
>> @@ -94,6 +94,7 @@ enum qca6174_chip_id_rev {
>> #define ATH10K_FW_API5_FILE "firmware-5.bin"
>>
>> #define ATH10K_FW_UTF_FILE "utf.bin"
>> +#define ATH10K_FW_UTF_API2_FILE "utf-2.bin"
>>
>> /* includes also the null byte */
>> #define ATH10K_FIRMWARE_MAGIC "QCA-ATH10K"
>> diff --git a/drivers/net/wireless/ath/ath10k/testmode.c
>> b/drivers/net/wireless/ath/ath10k/testmode.c
>> index b084f88da102..1d5a2fdcbf56 100644
>> --- a/drivers/net/wireless/ath/ath10k/testmode.c
>> +++ b/drivers/net/wireless/ath/ath10k/testmode.c
>> @@ -139,11 +139,181 @@ static int ath10k_tm_cmd_get_version(struct ath10k
>> *ar, struct nlattr *tb[])
>> return cfg80211_testmode_reply(skb);
>> }
>>
>> -static int ath10k_tm_cmd_utf_start(struct ath10k *ar, struct nlattr
>> *tb[])
>> +static int ath10k_tm_fetch_utf_firmware_api_2(struct ath10k *ar)
>> +{
>> + size_t len, magic_len, ie_len;
>> + struct ath10k_fw_ie *hdr;
>> + char filename[100];
>> + __le32 *version;
>> + const u8 *data;
>> + int ie_id, ret;
>> +
>> + snprintf(filename, sizeof(filename), "%s/%s",
>> + ar->hw_params.fw.dir, ATH10K_FW_UTF_API2_FILE);
>> +
>> + /* load utf firmware image */
>> + ret = request_firmware(&ar->testmode.utf, filename, ar->dev);
>> + if (ret) {
>> + ath10k_warn(ar, "failed to retrieve utf firmware '%s':
>> %d\n",
>> + filename, ret);
>> + return ret;
>> + }
>> +
>> + data = ar->testmode.utf->data;
>> + len = ar->testmode.utf->size;
>> +
>> + /* FIXME: call release_firmware() in error cases */
>> +
>> + /* magic also includes the null byte, check that as well */
>> + magic_len = strlen(ATH10K_FIRMWARE_MAGIC) + 1;
>> +
>> + if (len < magic_len) {
>> + ath10k_err(ar, "utf firmware file is too small to contain
>> magic\n");
>> + ret = -EINVAL;
>> + goto err;
>> + }
>> +
>> + if (memcmp(data, ATH10K_FIRMWARE_MAGIC, magic_len) != 0) {
>> + ath10k_err(ar, "invalid firmware magic\n");
>> + ret = -EINVAL;
>> + goto err;
>> + }
>> +
>> + /* jump over the padding */
>> + magic_len = ALIGN(magic_len, 4);
>> +
>> + len -= magic_len;
>> + data += magic_len;
>> +
>> + /* loop elements */
>> + while (len > sizeof(struct ath10k_fw_ie)) {
>> + hdr = (struct ath10k_fw_ie *)data;
>> +
>> + ie_id = le32_to_cpu(hdr->id);
>> + ie_len = le32_to_cpu(hdr->len);
>> +
>> + len -= sizeof(*hdr);
>> + data += sizeof(*hdr);
>> +
>> + if (len < ie_len) {
>> + ath10k_err(ar, "invalid length for FW IE %d (%zu <
>> %zu)\n",
>> + ie_id, len, ie_len);
>> + ret = -EINVAL;
>> + goto err;
>> + }
>> +
>> + switch (ie_id) {
>> + case ATH10K_FW_IE_FW_VERSION:
>
>
> Something like ATH10K_UTF_IE_FW_VERSION or ATH10K_TESTMODE_IE_FW_VERSION
> would be less confusing and better, isn't it?

I don't really see a reason to. UTF is just another main program to
run on the device.

If anything I would suggest to unify the FW API parsing logic to work
with a dedicated structure instead of `struct ath10k` directly, i.e.

struct ath10k_fw {
void *data;
size_t data_len;
enum wmi_op_version wmi_op_version;
// ...
};

int ath10k_core_fw_api_parse(struct ath10k *ar,
struct ath10k_fw *arfw,
struct firmware *fw)
{
// parse and fill in `arfw`
}

struct ath10k {
// ...
struct ath10k_fw fw_normal;
struct ath10k_fw fw_utf;
// ...
};


Michał

2015-10-29 10:47:24

by Kalle Valo

[permalink] [raw]
Subject: Re: [PATCH v2] ath10k: add FW API support to test mode

Michal Kazior <[email protected]> writes:

>> Hmmm, this way we will have a unified firmware parsing logic. Is this a task
>> which can be taken up easily or any other hidden complexities are invloved
>> ?.
>
> Decoupling the parsing logic should be rather easy. I don't think
> there are any gotchas.

I agree.

>> I mean can we do the changes for current parsing logic and then rework the
>> test mode patch ? what is your suggestion ?
>
> If you want to do the unified parsing logic approach you should first
> decouple the logic (i.e. make it not fill `struct ath10k` directly)
> and then rework the testmode patch on top of that.

Actually I prefer the other way around, I can first apply the test mode
patch and later someone can decouple the logic in a new patch. The code
size benefits that from all pretty small so I don't think it's sensible
to delay this patch. But decoupling the logic would be nice cleanup to
do.

--
Kalle Valo