[PATCH resend] libertas: support mesh for various firmware versions
Bing Zhao
bzhao at marvell.com
Mon Mar 16 16:56:59 EDT 2009
On Monday, March 16, 2009 at 9:49 AM, Dan Williams wrote:
>> + __le16 command = CMD_MESH_CONFIG_OLD;
>
> You'll probably just want "u16" here, since you're doing cpu-endian
> operations on it below, and since it gets converted to LE16 when adding
> it to the command anyway. This *should* trigger a sparse warning if
> you're building with sparse and CHECK_ENDIAN.
>
> http://lwn.net/Articles/205624/
>
>> lbs_deb_enter(LBS_DEB_CMD);
>>
>> - cmd->hdr.command = cpu_to_le16(CMD_MESH_CONFIG);
>> + /*
>> + * Command id is 0xac for v10 FW along with mesh interface
>> + * id in bits 14-13-12.
>> + */
>> + if (priv->mesh_fw_ver == MESH_FW_NEW)
>> + command = CMD_MESH_CONFIG |
>> + (MESH_IFACE_ID << MESH_IFACE_BIT_OFFSET);
>
> Like here; you've declared 'command' as __le16 above, but the value
> you're assigning to it will be cpu-endian. sparse should complain about
> this.
>
>> +
>> + cmd->hdr.command = cpu_to_le16(command);
>
> 'command' is getting converted to LE16 here anyway, so there's no need
> to declare command as __le16 initially.
>
> Everything else looks great. If you could resent with the above change
> from __le16 -> u16, I think it's ready. Thanks!
>
> Dan
Hi Dan,
Thank you very much for reviewing the patch and the detailed
information of sparse and __CHECK_ENDIAN__.
The updated patch is attached below.
Thanks,
Bing
----------------------------------------------------
libertas: support mesh for various firmware versions
CMD_MESH_CONFIG command ID and a couple of structure members in TxPD,
RxPD have been changed in firmware version 10.x.y.z and newer.
Signed-off-by: Kiran Divekar <dkiran at marvell.com>
Signed-off-by: Bing Zhao <bzhao at marvell.com>
---
drivers/net/wireless/libertas/cmd.c | 26 +++++++++++++++++-
drivers/net/wireless/libertas/defs.h | 21 ++++++++++++++
drivers/net/wireless/libertas/dev.h | 1 +
drivers/net/wireless/libertas/host.h | 3 +-
drivers/net/wireless/libertas/hostcmd.h | 28 +++++++++++++++++---
drivers/net/wireless/libertas/main.c | 44 +++++++++++++++++++------------
drivers/net/wireless/libertas/rx.c | 32 ++++++----------------
drivers/net/wireless/libertas/tx.c | 8 ++++-
drivers/net/wireless/libertas/types.h | 2 +
9 files changed, 116 insertions(+), 49 deletions(-)
diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index 639dd02..17d6f9c 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -119,6 +119,19 @@ int lbs_update_hw_spec(struct lbs_private *priv)
lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
cmd.hwifversion, cmd.version);
+ /* Determine mesh_fw_ver from fwrelease and fwcapinfo */
+ /* 5.0.16p0 9.0.0.p0 is known to NOT support any mesh */
+ /* 5.110.22 have mesh command with 0xa3 command id */
+ /* 10.0.0.p0 FW brings in mesh config command with different id */
+ /* Check FW version MSB and initialize mesh_fw_ver */
+ if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5)
+ priv->mesh_fw_ver = MESH_FW_OLD;
+ else if ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) &&
+ (priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK))
+ priv->mesh_fw_ver = MESH_FW_NEW;
+ else
+ priv->mesh_fw_ver = MESH_NONE;
+
/* Clamp region code to 8-bit since FW spec indicates that it should
* only ever be 8-bit, even though the field size is 16-bit. Some firmware
* returns non-zero high 8 bits here.
@@ -1036,17 +1049,26 @@ static int __lbs_mesh_config_send(struct lbs_private *priv,
uint16_t action, uint16_t type)
{
int ret;
+ u16 command = CMD_MESH_CONFIG_OLD;
lbs_deb_enter(LBS_DEB_CMD);
- cmd->hdr.command = cpu_to_le16(CMD_MESH_CONFIG);
+ /*
+ * Command id is 0xac for v10 FW along with mesh interface
+ * id in bits 14-13-12.
+ */
+ if (priv->mesh_fw_ver == MESH_FW_NEW)
+ command = CMD_MESH_CONFIG |
+ (MESH_IFACE_ID << MESH_IFACE_BIT_OFFSET);
+
+ cmd->hdr.command = cpu_to_le16(command);
cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
cmd->hdr.result = 0;
cmd->type = cpu_to_le16(type);
cmd->action = cpu_to_le16(action);
- ret = lbs_cmd_with_response(priv, CMD_MESH_CONFIG, cmd);
+ ret = lbs_cmd_with_response(priv, command, cmd);
lbs_deb_leave(LBS_DEB_CMD);
return ret;
diff --git a/drivers/net/wireless/libertas/defs.h b/drivers/net/wireless/libertas/defs.h
index e8dfde3..48da157 100644
--- a/drivers/net/wireless/libertas/defs.h
+++ b/drivers/net/wireless/libertas/defs.h
@@ -227,6 +227,20 @@ static inline void lbs_deb_hex(unsigned int grp, const char *prompt, u8 *buf, in
#define TxPD_CONTROL_WDS_FRAME (1<<17)
#define TxPD_MESH_FRAME TxPD_CONTROL_WDS_FRAME
+/** Mesh interface ID */
+#define MESH_IFACE_ID 0x0001
+/** Mesh id should be in bits 14-13-12 */
+#define MESH_IFACE_BIT_OFFSET 0x000c
+/** Mesh enable bit in FW capability */
+#define MESH_CAPINFO_ENABLE_MASK (1<<16)
+
+/** FW definition from Marvell v5 */
+#define MRVL_FW_V5 (0x05)
+/** FW definition from Marvell v10 */
+#define MRVL_FW_V10 (0x0a)
+/** FW major revision definition */
+#define MRVL_FW_MAJOR_REV(x) ((x)>>24)
+
/** RxPD status */
#define MRVDRV_RXPD_STATUS_OK 0x0001
@@ -380,6 +394,13 @@ enum KEY_INFO_WPA {
KEY_INFO_WPA_ENABLED = 0x04
};
+/** mesh_fw_ver */
+enum _mesh_fw_ver {
+ MESH_NONE = 0, /* MESH is not supported */
+ MESH_FW_OLD, /* MESH is supported in FW V5 */
+ MESH_FW_NEW, /* MESH is supported in FW V10 and newer */
+};
+
/* Default values for fwt commands. */
#define FWT_DEFAULT_METRIC 0
#define FWT_DEFAULT_DIR 1
diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h
index dd682c4..5f3f6b2 100644
--- a/drivers/net/wireless/libertas/dev.h
+++ b/drivers/net/wireless/libertas/dev.h
@@ -101,6 +101,7 @@ struct lbs_mesh_stats {
/** Private structure for the MV device */
struct lbs_private {
int mesh_open;
+ int mesh_fw_ver;
int infra_open;
int mesh_autostart_enabled;
diff --git a/drivers/net/wireless/libertas/host.h b/drivers/net/wireless/libertas/host.h
index d4457ef..8ff8ac9 100644
--- a/drivers/net/wireless/libertas/host.h
+++ b/drivers/net/wireless/libertas/host.h
@@ -83,7 +83,8 @@
#define CMD_FWT_ACCESS 0x0095
#define CMD_802_11_MONITOR_MODE 0x0098
#define CMD_MESH_ACCESS 0x009b
-#define CMD_MESH_CONFIG 0x00a3
+#define CMD_MESH_CONFIG_OLD 0x00a3
+#define CMD_MESH_CONFIG 0x00ac
#define CMD_SET_BOOT2_VER 0x00a5
#define CMD_802_11_BEACON_CTRL 0x00b0
diff --git a/drivers/net/wireless/libertas/hostcmd.h b/drivers/net/wireless/libertas/hostcmd.h
index a899aeb..391c54a 100644
--- a/drivers/net/wireless/libertas/hostcmd.h
+++ b/drivers/net/wireless/libertas/hostcmd.h
@@ -13,8 +13,19 @@
/* TxPD descriptor */
struct txpd {
- /* Current Tx packet status */
- __le32 tx_status;
+ /* union to cope up with later FW revisions */
+ union {
+ /* Current Tx packet status */
+ __le32 tx_status;
+ struct {
+ /* BSS type: client, AP, etc. */
+ u8 bss_type;
+ /* BSS number */
+ u8 bss_num;
+ /* Reserved */
+ __le16 reserved;
+ } bss;
+ } u;
/* Tx control */
__le32 tx_control;
__le32 tx_packet_location;
@@ -36,8 +47,17 @@ struct txpd {
/* RxPD Descriptor */
struct rxpd {
- /* Current Rx packet status */
- __le16 status;
+ /* union to cope up with later FW revisions */
+ union {
+ /* Current Rx packet status */
+ __le16 status;
+ struct {
+ /* BSS type: client, AP, etc. */
+ u8 bss_type;
+ /* BSS number */
+ u8 bss_num;
+ } bss;
+ } u;
/* SNR */
u8 snr;
diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c
index d93553f..f14d341 100644
--- a/drivers/net/wireless/libertas/main.c
+++ b/drivers/net/wireless/libertas/main.c
@@ -1316,8 +1316,10 @@ int lbs_start_card(struct lbs_private *priv)
lbs_update_channel(priv);
- /* 5.0.16p0 is known to NOT support any mesh */
- if (priv->fwrelease > 0x05001000) {
+ /* Check mesh FW version and appropriately send the mesh start
+ * command
+ */
+ if (priv->mesh_fw_ver == MESH_FW_OLD) {
/* Enable mesh, if supported, and work out which TLV it uses.
0x100 + 291 is an unofficial value used in 5.110.20.pXX
0x100 + 37 is the official value used in 5.110.21.pXX
@@ -1331,27 +1333,35 @@ int lbs_start_card(struct lbs_private *priv)
It's just that 5.110.20.pXX will not have done anything
useful */
- priv->mesh_tlv = 0x100 + 291;
+ priv->mesh_tlv = TLV_TYPE_OLD_MESH_ID;
if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
priv->curbssparams.channel)) {
- priv->mesh_tlv = 0x100 + 37;
+ priv->mesh_tlv = TLV_TYPE_MESH_ID;
if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
priv->curbssparams.channel))
priv->mesh_tlv = 0;
}
- if (priv->mesh_tlv) {
- lbs_add_mesh(priv);
-
- if (device_create_file(&dev->dev, &dev_attr_lbs_mesh))
- lbs_pr_err("cannot register lbs_mesh attribute\n");
-
- /* While rtap isn't related to mesh, only mesh-enabled
- * firmware implements the rtap functionality via
- * CMD_802_11_MONITOR_MODE.
- */
- if (device_create_file(&dev->dev, &dev_attr_lbs_rtap))
- lbs_pr_err("cannot register lbs_rtap attribute\n");
- }
+ } else if (priv->mesh_fw_ver == MESH_FW_NEW) {
+ /* 10.0.0.pXX new firmwares should succeed with TLV
+ * 0x100+37; Do not invoke command with old TLV.
+ */
+ priv->mesh_tlv = TLV_TYPE_MESH_ID;
+ if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
+ priv->curbssparams.channel))
+ priv->mesh_tlv = 0;
+ }
+ if (priv->mesh_tlv) {
+ lbs_add_mesh(priv);
+
+ if (device_create_file(&dev->dev, &dev_attr_lbs_mesh))
+ lbs_pr_err("cannot register lbs_mesh attribute\n");
+
+ /* While rtap isn't related to mesh, only mesh-enabled
+ * firmware implements the rtap functionality via
+ * CMD_802_11_MONITOR_MODE.
+ */
+ if (device_create_file(&dev->dev, &dev_attr_lbs_rtap))
+ lbs_pr_err("cannot register lbs_rtap attribute\n");
}
lbs_debugfs_init_one(priv, dev);
diff --git a/drivers/net/wireless/libertas/rx.c b/drivers/net/wireless/libertas/rx.c
index 079e6aa..5cf1462 100644
--- a/drivers/net/wireless/libertas/rx.c
+++ b/drivers/net/wireless/libertas/rx.c
@@ -160,8 +160,15 @@ int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *skb)
p_rx_pkt = (struct rxpackethdr *) skb->data;
p_rx_pd = &p_rx_pkt->rx_pd;
- if (priv->mesh_dev && (p_rx_pd->rx_control & RxPD_MESH_FRAME))
- dev = priv->mesh_dev;
+ if (priv->mesh_dev) {
+ if (priv->mesh_fw_ver == MESH_FW_OLD) {
+ if (p_rx_pd->rx_control & RxPD_MESH_FRAME)
+ dev = priv->mesh_dev;
+ } else if (priv->mesh_fw_ver == MESH_FW_NEW) {
+ if (p_rx_pd->u.bss.bss_num == MESH_IFACE_ID)
+ dev = priv->mesh_dev;
+ }
+ }
lbs_deb_hex(LBS_DEB_RX, "RX Data: Before chop rxpd", skb->data,
min_t(unsigned int, skb->len, 100));
@@ -173,17 +180,6 @@ int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *skb)
goto done;
}
- /*
- * Check rxpd status and update 802.3 stat,
- */
- if (!(p_rx_pd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK))) {
- lbs_deb_rx("rx err: frame received with bad status\n");
- lbs_pr_alert("rxpd not ok\n");
- priv->stats.rx_errors++;
- ret = 0;
- goto done;
- }
-
lbs_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n",
skb->len, sizeof(struct rxpd), skb->len - sizeof(struct rxpd));
@@ -332,14 +328,6 @@ static int process_rxed_802_11_packet(struct lbs_private *priv,
goto done;
}
- /*
- * Check rxpd status and update 802.3 stat,
- */
- if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK))) {
- //lbs_deb_rx("rx err: frame received with bad status\n");
- priv->stats.rx_errors++;
- }
-
lbs_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n",
skb->len, sizeof(struct rxpd), skb->len - sizeof(struct rxpd));
@@ -361,8 +349,6 @@ static int process_rxed_802_11_packet(struct lbs_private *priv,
/* XXX must check no carryout */
radiotap_hdr.antsignal = prxpd->snr + prxpd->nf;
radiotap_hdr.rx_flags = 0;
- if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK)))
- radiotap_hdr.rx_flags |= IEEE80211_RADIOTAP_F_RX_BADFCS;
//memset(radiotap_hdr.pad, 0x11, IEEE80211_RADIOTAP_HDRLEN - 18);
/* chop the rxpd */
diff --git a/drivers/net/wireless/libertas/tx.c b/drivers/net/wireless/libertas/tx.c
index 68bec31..6be3b27 100644
--- a/drivers/net/wireless/libertas/tx.c
+++ b/drivers/net/wireless/libertas/tx.c
@@ -132,8 +132,12 @@ int lbs_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
txpd->tx_packet_length = cpu_to_le16(pkt_len);
txpd->tx_packet_location = cpu_to_le32(sizeof(struct txpd));
- if (dev == priv->mesh_dev)
- txpd->tx_control |= cpu_to_le32(TxPD_MESH_FRAME);
+ if (dev == priv->mesh_dev) {
+ if (priv->mesh_fw_ver == MESH_FW_OLD)
+ txpd->tx_control |= cpu_to_le32(TxPD_MESH_FRAME);
+ else if (priv->mesh_fw_ver == MESH_FW_NEW)
+ txpd->u.bss.bss_num = MESH_IFACE_ID;
+ }
lbs_deb_hex(LBS_DEB_TX, "txpd", (u8 *) &txpd, sizeof(struct txpd));
diff --git a/drivers/net/wireless/libertas/types.h b/drivers/net/wireless/libertas/types.h
index fb7a2d1..de03b9c 100644
--- a/drivers/net/wireless/libertas/types.h
+++ b/drivers/net/wireless/libertas/types.h
@@ -94,6 +94,8 @@ struct ieeetypes_assocrsp {
#define TLV_TYPE_TSFTIMESTAMP (PROPRIETARY_TLV_BASE_ID + 19)
#define TLV_TYPE_RSSI_HIGH (PROPRIETARY_TLV_BASE_ID + 22)
#define TLV_TYPE_SNR_HIGH (PROPRIETARY_TLV_BASE_ID + 23)
+#define TLV_TYPE_MESH_ID (PROPRIETARY_TLV_BASE_ID + 37)
+#define TLV_TYPE_OLD_MESH_ID (PROPRIETARY_TLV_BASE_ID + 291)
/** TLV related data structures*/
struct mrvlietypesheader {
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