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| author | Arjun Vynipadath | 2018-03-13 11:54:45 +0100 |
|---|---|---|
| committer | David S. Miller | 2018-03-13 16:28:19 +0100 |
| commit | 8b4e6b3ca2ed63917e18303005fdd34a586e86db (patch) | |
| tree | f3b158fdd8947d0c7bec54ac1235700ccb5cc5fe /drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | |
| parent | Merge branch 'pernet-convert-part6' (diff) | |
| download | kernel-qcow2-linux-8b4e6b3ca2ed63917e18303005fdd34a586e86db.tar.gz kernel-qcow2-linux-8b4e6b3ca2ed63917e18303005fdd34a586e86db.tar.xz kernel-qcow2-linux-8b4e6b3ca2ed63917e18303005fdd34a586e86db.zip | |
cxgb4: Add HMA support
HMA(Host Memory Access) maps a part of host memory for T6-SO memfree cards.
This commit does the following:
- Query FW to check if we have HMA support. If yes, the params will
return HMA size configured in FW. We will dma map memory based
on this size.
- Also contains changes to get HMA memory information via debugfs.
Signed-off-by: Arjun Vynipadath <arjun@chelsio.com>
Signed-off-by: Santosh Rastapur <santosh@chelsio.com>
Signed-off-by: Michael Werner <werner@chelsio.com>
Signed-off-by: Ganesh GR <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c index 2822bbff73e8..de2ba86eccfd 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c @@ -2617,7 +2617,7 @@ int mem_open(struct inode *inode, struct file *file) file->private_data = inode->i_private; - mem = (uintptr_t)file->private_data & 0x3; + mem = (uintptr_t)file->private_data & 0x7; adap = file->private_data - mem; (void)t4_fwcache(adap, FW_PARAM_DEV_FWCACHE_FLUSH); @@ -2630,7 +2630,7 @@ static ssize_t mem_read(struct file *file, char __user *buf, size_t count, { loff_t pos = *ppos; loff_t avail = file_inode(file)->i_size; - unsigned int mem = (uintptr_t)file->private_data & 3; + unsigned int mem = (uintptr_t)file->private_data & 0x7; struct adapter *adap = file->private_data - mem; __be32 *data; int ret; @@ -3042,6 +3042,12 @@ int t4_setup_debugfs(struct adapter *adap) add_debugfs_mem(adap, "mc", MEM_MC, EXT_MEM_SIZE_G(size)); } + + if (i & HMA_MUX_F) { + size = t4_read_reg(adap, MA_EXT_MEMORY1_BAR_A); + add_debugfs_mem(adap, "hma", MEM_HMA, + EXT_MEM1_SIZE_G(size)); + } } de = debugfs_create_file_size("flash", S_IRUSR, adap->debugfs_root, adap, |