diff options
| author | Bartosz Szczepanek | 2017-02-07 12:20:18 +0100 |
|---|---|---|
| committer | Michael Brown | 2017-02-07 12:54:57 +0100 |
| commit | ed864feb3aedcde41040d4a5293608ccd2d3361a (patch) | |
| tree | b33fb5fd2a381c6ab7c009d2f8a385e061f66609 /src/drivers | |
| parent | [http] Cleanly shut down potentially looped interfaces (diff) | |
| download | ipxe-ed864feb3aedcde41040d4a5293608ccd2d3361a.tar.gz ipxe-ed864feb3aedcde41040d4a5293608ccd2d3361a.tar.xz ipxe-ed864feb3aedcde41040d4a5293608ccd2d3361a.zip | |
[thunderx] Fix hardware deinitialization
It is required to reset BGX context state for the LMAC using
BGX_CMR_CONFIG register.
This solves problem with network connectivity in Linux booted from
iPXE.
Signed-off-by: Bartosz Szczepanek <bartosz.szczepanek@cavium.com>
Modified-by: Michael Brown <mcb30@ipxe.org>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/drivers')
| -rw-r--r-- | src/drivers/net/thunderx.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/drivers/net/thunderx.c b/src/drivers/net/thunderx.c index 306adc45..901ecba1 100644 --- a/src/drivers/net/thunderx.c +++ b/src/drivers/net/thunderx.c @@ -1146,10 +1146,17 @@ static int txnic_lmac_probe ( struct txnic_lmac *lmac ) { * @v lmac Logical MAC */ static void txnic_lmac_remove ( struct txnic_lmac *lmac ) { + uint64_t config; /* Sanity check */ assert ( lmac->vnic != NULL ); + /* Disable packet receive and transmit */ + config = readq ( lmac->regs + BGX_CMR_CONFIG ); + config &= ~( BGX_CMR_CONFIG_DATA_PKT_TX_EN | + BGX_CMR_CONFIG_DATA_PKT_RX_EN ); + writeq ( config, ( lmac->regs + BGX_CMR_CONFIG ) ); + /* Unregister network device */ unregister_netdev ( lmac->vnic->netdev ); |