65fed8a8c155271cf647651bd62eecb5928ae3a4 |
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29-May-2014 |
Jack Morgenstein <jackm@dev.mellanox.co.il> |
IB/mlx4: Add interface for selecting VFs to enable QP0 via MLX proxy QPs This commit adds the sysfs interface for enabling QP0 on VFs for selected VF/port. By default, no VFs are enabled for QP0 operation. To enable QP0 operation on a VF/port, under /sys/class/infiniband/mlx4_x/iov/<b:d:f>/ports/x there are two new entries: - smi_enabled (read-only). Indicates whether smi is currently enabled for the indicated VF/port - enable_smi_admin (rw). Used by the admin to request that smi capability be enabled or disabled for the indicated VF/port. 0 = disable, 1 = enable. The requested enablement will occur at the next reset of the VF (e.g. driver restart on the VM which owns the VF). Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
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449fc48866f7d84b0d9a19201de18a4dd4d3488c |
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19-Mar-2014 |
Matan Barak <matanb@mellanox.com> |
net/mlx4: Adapt code for N-Port VF Adds support for N-Port VFs, this includes: 1. Adding support in the wrapped FW command In wrapped commands, we need to verify and convert the slave's port into the real physical port. Furthermore, when sending the response back to the slave, a reverse conversion should be made. 2. Adjusting sqpn for QP1 para-virtualization The slave assumes that sqpn is used for QP1 communication. If the slave is assigned to a port != (first port), we need to adjust the sqpn that will direct its QP1 packets into the correct endpoint. 3. Adjusting gid[5] to modify the port for raw ethernet In B0 steering, gid[5] contains the port. It needs to be adjusted into the physical port. 4. Adjusting number of ports in the query / ports caps in the FW commands When a slave queries the hardware, it needs to view only the physical ports it's assigned to. 5. Adjusting the sched_qp according to the port number The QP port is encoded in the sched_qp, thus in modify_qp we need to encode the correct port in sched_qp. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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af2e2e35a23e4aeecfe4332a7140c81e0f09b7e3 |
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29-Dec-2013 |
Julia Lawall <Julia.Lawall@lip6.fr> |
IB/mlx4: Fix error return code Set the return variable to an error code as done elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Roland Dreier <roland@purestorage.com>
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6950a235b86cf4e73d2b8e5476e7d0eb8f61af63 |
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21-Jan-2013 |
Julia Lawall <Julia.Lawall@lip6.fr> |
IB/mlx4: Adjust duplicate test Delete successive tests to the same location. The code tested the result of a previous allocation, that itself was already tested. It is changed to test the result of the most recent allocation. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @s exists@ local idexpression y; expression x,e; @@ *if ( \(x == NULL\|IS_ERR(x)\|y != 0\) ) { ... when forall return ...; } ... when != \(y = e\|y += e\|y -= e\|y |= e\|y &= e\|y++\|y--\|&y\) when != \(XT_GETPAGE(...,y)\|WMI_CMD_BUF(...)\) *if ( \(x == NULL\|IS_ERR(x)\|y != 0\) ) { ... when forall return ...; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Roland Dreier <roland@purestorage.com>
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c1e7e466120b80ce49e91af0c9da1ce6dee4844a |
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03-Aug-2012 |
Jack Morgenstein <jackm@dev.mellanox.co.il> |
IB/mlx4: Add iov directory in sysfs under the ib device This directory is added only for the master -- slaves do not have it. The sysfs iov directory is used to manage and examine the port P_Key and guid paravirtualization. Under iov/ports, the administrator may examine the gid and P_Key tables as they are present in the device (and as are seen in the "network view" presented to the SM). Under the iov/<pci slot number> directories, the admin may map the index numbers in the physical tables (as under iov/ports) to the paravirtualized index numbers that guests see. For example, if the administrator, for port 1 on guest 2 maps physical pkey index 10 to virtual index 1, then that guest, whenever it uses its pkey index 1, will actually be using the real pkey index 10. Based on patch from Erez Shitrit <erezsh@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
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