diff options
| -rw-r--r-- | Documentation/rapidio/tsi721.txt | 5 | ||||
| -rw-r--r-- | drivers/rapidio/devices/tsi721.c | 15 |
2 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/rapidio/tsi721.txt b/Documentation/rapidio/tsi721.txt index 9c6ee3853793..cd2a2935d51d 100644 --- a/Documentation/rapidio/tsi721.txt +++ b/Documentation/rapidio/tsi721.txt @@ -46,6 +46,11 @@ fully compatible with RIONET driver (Ethernet over RapidIO messaging services). 0 = 128B, 1 = 256B, 2 = 512B, 3 = 1024B, 4 = 2048B and 5 = 4096B. Default value is '-1' (= keep platform setting). +- 'mbox_sel' - RIO messaging MBOX selection mask. This is a bitmask that defines + messaging MBOXes are managed by this device driver. Mask bits 0 - 3 + correspond to MBOX0 - MBOX3. MBOX is under driver's control if the + corresponding bit is set to '1'. Default value is 0x0f (= all). + II. Known problems None. diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c index 85098f8973a9..8e07cd56abdc 100644 --- a/drivers/rapidio/devices/tsi721.c +++ b/drivers/rapidio/devices/tsi721.c @@ -46,6 +46,11 @@ static int pcie_mrrs = -1; module_param(pcie_mrrs, int, S_IRUGO); MODULE_PARM_DESC(pcie_mrrs, "PCIe MRRS override value (0...5)"); +static u8 mbox_sel = 0x0f; +module_param(mbox_sel, byte, S_IRUGO); +MODULE_PARM_DESC(mbox_sel, + "RIO Messaging MBOX Selection Mask (default: 0x0f = all)"); + static void tsi721_omsg_handler(struct tsi721_device *priv, int ch); static void tsi721_imsg_handler(struct tsi721_device *priv, int ch); @@ -1881,6 +1886,11 @@ static int tsi721_open_outb_mbox(struct rio_mport *mport, void *dev_id, goto out; } + if ((mbox_sel & (1 << mbox)) == 0) { + rc = -ENODEV; + goto out; + } + priv->omsg_ring[mbox].dev_id = dev_id; priv->omsg_ring[mbox].size = entries; priv->omsg_ring[mbox].sts_rdptr = 0; @@ -2165,6 +2175,11 @@ static int tsi721_open_inb_mbox(struct rio_mport *mport, void *dev_id, goto out; } + if ((mbox_sel & (1 << mbox)) == 0) { + rc = -ENODEV; + goto out; + } + /* Initialize IB Messaging Ring */ priv->imsg_ring[mbox].dev_id = dev_id; priv->imsg_ring[mbox].size = entries; |