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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>
This commit is contained in:
Shalom Toledo 2018-03-19 09:51:00 +02:00 committed by David S. Miller
parent c846d8da56
commit 830a8b1b00
1 changed files with 6 additions and 3 deletions
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9
drivers/net/ethernet/mellanox/mlxsw/pci.c
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@ -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));