diff options
| author | Shalom Toledo <shalomt@mellanox.com> | 2018-03-19 09:51:00 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-20 12:11:02 -0400 |
| commit | 830a8b1b001d3c2b4dfaa97d0eea5b9d6b03ae62 (patch) | |
| tree | caff31184811bae3093c559c396574eccd2614c6 | |
| parent | c846d8da5640a6c61d57e2c14a1a6d74b9c643b0 (diff) | |
| download | linux-830a8b1b001d3c2b4dfaa97d0eea5b9d6b03ae62.tar.bz2 | |
mlxsw: pci: Set mbox dma addresses to zero when not used
Some of the opcodes don't use in, out or both mboxes. In such cases, the
mbox address is a reserved field and FW expects it to be zero.
Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/pci.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c index 85faa87bf42d..e30c6ce3dcb4 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/pci.c +++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c @@ -1519,8 +1519,7 @@ static int mlxsw_pci_cmd_exec(void *bus_priv, u16 opcode, u8 opcode_mod, u8 *p_status) { struct mlxsw_pci *mlxsw_pci = bus_priv; - dma_addr_t in_mapaddr = mlxsw_pci->cmd.in_mbox.mapaddr; - dma_addr_t out_mapaddr = mlxsw_pci->cmd.out_mbox.mapaddr; + dma_addr_t in_mapaddr = 0, out_mapaddr = 0; bool evreq = mlxsw_pci->cmd.nopoll; unsigned long timeout = msecs_to_jiffies(MLXSW_PCI_CIR_TIMEOUT_MSECS); bool *p_wait_done = &mlxsw_pci->cmd.wait_done; @@ -1532,11 +1531,15 @@ static int mlxsw_pci_cmd_exec(void *bus_priv, u16 opcode, u8 opcode_mod, if (err) return err; - if (in_mbox) + if (in_mbox) { memcpy(mlxsw_pci->cmd.in_mbox.buf, in_mbox, in_mbox_size); + in_mapaddr = mlxsw_pci->cmd.in_mbox.mapaddr; + } mlxsw_pci_write32(mlxsw_pci, CIR_IN_PARAM_HI, upper_32_bits(in_mapaddr)); mlxsw_pci_write32(mlxsw_pci, CIR_IN_PARAM_LO, lower_32_bits(in_mapaddr)); + if (out_mbox) + out_mapaddr = mlxsw_pci->cmd.out_mbox.mapaddr; mlxsw_pci_write32(mlxsw_pci, CIR_OUT_PARAM_HI, upper_32_bits(out_mapaddr)); mlxsw_pci_write32(mlxsw_pci, CIR_OUT_PARAM_LO, lower_32_bits(out_mapaddr)); |