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thunderbolt: Generalize tunnel creation functionality

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To be able to tunnel non-PCIe traffic, separate tunnel functionality
into generic and PCIe specific parts. Rename struct tb_pci_tunnel to
tb_tunnel, and make it hold an array of paths instead of just two.
Update all the tunneling functions to take this structure as parameter.

We also move tb_pci_port_active() to switch.c (and rename it) where we
will be keeping all port and switch related functions.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Mika Westerberg
2017-02-19 13:48:29 +02:00
parent 1752b9f787
commit 93f36ade5b
6 changed files with 235 additions and 150 deletions
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13
drivers/thunderbolt/switch.c
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@@ -599,6 +599,19 @@ static int tb_init_port(struct tb_port *port)
}
/**
* tb_pci_port_enable() - Enable PCIe adapter port
* @port: PCIe port to enable
* @enable: Enable/disable the PCIe adapter
*/
int tb_pci_port_enable(struct tb_port *port, bool enable)
{
u32 word = enable ? TB_PCI_EN : 0x0;
if (!port->cap_adap)
return -ENXIO;
return tb_port_write(port, &word, TB_CFG_PORT, port->cap_adap, 1);
}
/* switch utility functions */
static void tb_dump_switch(struct tb *tb, struct tb_regs_switch_header *sw)