diff options
| author | Arjun Vynipadath <arjun@chelsio.com> | 2018-03-13 16:24:45 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-13 11:28:19 -0400 |
| commit | 8b4e6b3ca2ed63917e18303005fdd34a586e86db (patch) | |
| tree | f3b158fdd8947d0c7bec54ac1235700ccb5cc5fe /drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | |
| parent | 74b8da705caff32d599474b3c49fd6a5c65fe03e (diff) | |
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.h')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h index d3fa53db61ee..b2df0ffb7c94 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h @@ -831,6 +831,16 @@ struct vf_info { u16 vlan; }; +enum { + HMA_DMA_MAPPED_FLAG = 1 +}; + +struct hma_data { + unsigned char flags; + struct sg_table *sgt; + dma_addr_t *phy_addr; /* physical address of the page */ +}; + struct mbox_list { struct list_head list; }; @@ -946,6 +956,9 @@ struct adapter { /* Ethtool Dump */ struct ethtool_dump eth_dump; + + /* HMA */ + struct hma_data hma; }; /* Support for "sched-class" command to allow a TX Scheduling Class to be |