search for: virtio_scsi_config

On 16/01/2017 17:04, Fam Zheng wrote: > + node_name = virtio_cread64(vdev, > + offsetof(struct virtio_scsi_config, primary_wwnn)); > + port_name = virtio_cread64(vdev, > + offsetof(struct virtio_scsi_config, primary_wwpn)); > + } else { > + node_name = virtio_cread64(vdev, > + offsetof(struct virtio_scsi_config, secondary_wwnn)); > + port_name = virtio_cread64(vdev, > + offsetof(s...

On 16/01/2017 17:04, Fam Zheng wrote: > + node_name = virtio_cread64(vdev, > + offsetof(struct virtio_scsi_config, primary_wwnn)); > + port_name = virtio_cread64(vdev, > + offsetof(struct virtio_scsi_config, primary_wwpn)); > + } else { > + node_name = virtio_cread64(vdev, > + offsetof(struct virtio_scsi_config, secondary_wwnn)); > + port_name = virtio_cread64(vdev, > + offsetof(s...

v2: Fix endianness of WWNN/WWPN. [Paolo] This series implements the proposed fc_host feature of virtio-scsi. The first patch updates the data structure changes according to the spec proposal; the second patch actually implements the operations. Fam Zheng (2): virtio_scsi: Add fc_host definitions virtio_scsi: Implement fc_host drivers/scsi/virtio_scsi.c | 60

v2: Fix endianness of WWNN/WWPN. [Paolo] This series implements the proposed fc_host feature of virtio-scsi. The first patch updates the data structure changes according to the spec proposal; the second patch actually implements the operations. Fam Zheng (2): virtio_scsi: Add fc_host definitions virtio_scsi: Implement fc_host drivers/scsi/virtio_scsi.c | 60

...irtio_scsi.c b/drivers/scsi/virtio_scsi.c index 0e0910c5b942..c36aeb9a1330 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -746,14 +746,14 @@ static struct scsi_host_template virtscsi_host_template = { #define virtscsi_config_get(vdev, fld) \ ({ \ - typeof(((struct virtio_scsi_config *)0)->fld) __val; \ + __virtio_native_type(struct virtio_scsi_config, fld) __val; \ virtio_cread(vdev, struct virtio_scsi_config, fld, &__val); \ __val; \ }) #define virtscsi_config_set(vdev, fld, val) \ do { \ - typeof(((struct virtio_scsi_config *)0)->fld) __val = (val);...

...irtio_scsi.c b/drivers/scsi/virtio_scsi.c index 0e0910c5b942..c36aeb9a1330 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -746,14 +746,14 @@ static struct scsi_host_template virtscsi_host_template = { #define virtscsi_config_get(vdev, fld) \ ({ \ - typeof(((struct virtio_scsi_config *)0)->fld) __val; \ + __virtio_native_type(struct virtio_scsi_config, fld) __val; \ virtio_cread(vdev, struct virtio_scsi_config, fld, &__val); \ __val; \ }) #define virtscsi_config_set(vdev, fld, val) \ do { \ - typeof(((struct virtio_scsi_config *)0)->fld) __val = (val);...

...host here? > > I think so. The fc_host sysfs uses u64 to represent port_name and node_name, > this patch does the same, so using virtio_* helpers for these fields should > handle the endianness correctly. I was suspicious about it because they are defined as "u8 x[8]" in the virtio_scsi_config struct. So you would need to read with virtio_cread_bytes and pass the result to wwn_to_u64. For example, if you have 0x500123456789abcd this would be 0x50 0x01 0x23 0x45 0x67 0x89 0xab 0cd in virtio_scsi_config, and then virtio_cread64 would read it as a little-endian u64, 0xcdab896745230150....

...host here? > > I think so. The fc_host sysfs uses u64 to represent port_name and node_name, > this patch does the same, so using virtio_* helpers for these fields should > handle the endianness correctly. I was suspicious about it because they are defined as "u8 x[8]" in the virtio_scsi_config struct. So you would need to read with virtio_cread_bytes and pass the result to wwn_to_u64. For example, if you have 0x500123456789abcd this would be 0x50 0x01 0x23 0x45 0x67 0x89 0xab 0cd in virtio_scsi_config, and then virtio_cread64 would read it as a little-endian u64, 0xcdab896745230150....

...t_node_name = 1, > + .show_host_port_name = 1, > + .show_host_port_type = 1, > + .show_host_port_state = 1, > +}; > + > +static struct scsi_transport_template *virtscsi_fc_transport_template; > + > #define virtscsi_config_get(vdev, fld) \ > ({ \ > typeof(((struct virtio_scsi_config *)0)->fld) __val; \ > @@ -956,15 +966,42 @@ static int virtscsi_init(struct virtio_device *vdev, > return err; > } > > +static void virtscsi_update_fc_host_attrs(struct virtio_device *vdev) > +{ > + struct Scsi_Host *shost = vdev->priv; > + u8 node_name[8], port_n...

...t_node_name = 1, > + .show_host_port_name = 1, > + .show_host_port_type = 1, > + .show_host_port_state = 1, > +}; > + > +static struct scsi_transport_template *virtscsi_fc_transport_template; > + > #define virtscsi_config_get(vdev, fld) \ > ({ \ > typeof(((struct virtio_scsi_config *)0)->fld) __val; \ > @@ -956,15 +966,42 @@ static int virtscsi_init(struct virtio_device *vdev, > return err; > } > > +static void virtscsi_update_fc_host_attrs(struct virtio_device *vdev) > +{ > + struct Scsi_Host *shost = vdev->priv; > + u8 node_name[8], port_n...

This series implements the proposed fc_host feature of virtio-scsi. The first patch updates the data structure changes according to the spec proposal; the second patch actually implements the operations. Fam Zheng (2): virtio_scsi: Add fc_host definitions virtio_scsi: Implement fc_host drivers/scsi/virtio_scsi.c | 55 +++++++++++++++++++++++++++++++++++++++-

This series implements the proposed fc_host feature of virtio-scsi. The first patch updates the data structure changes according to the spec proposal; the second patch actually implements the operations. Fam Zheng (2): virtio_scsi: Add fc_host definitions virtio_scsi: Implement fc_host drivers/scsi/virtio_scsi.c | 55 +++++++++++++++++++++++++++++++++++++++-

On Mon, 01/16 17:45, Paolo Bonzini wrote: > > > On 16/01/2017 17:04, Fam Zheng wrote: > > + node_name = virtio_cread64(vdev, > > + offsetof(struct virtio_scsi_config, primary_wwnn)); > > + port_name = virtio_cread64(vdev, > > + offsetof(struct virtio_scsi_config, primary_wwpn)); > > + } else { > > + node_name = virtio_cread64(vdev, > > + offsetof(struct virtio_scsi_config, secondary_wwnn)); > > + port_name = virtio_cre...

...tion_template virtscsi_fc_template = { + .show_host_node_name = 1, + .show_host_port_name = 1, + .show_host_port_type = 1, + .show_host_port_state = 1, +}; + +static struct scsi_transport_template *virtscsi_fc_transport_template; + #define virtscsi_config_get(vdev, fld) \ ({ \ typeof(((struct virtio_scsi_config *)0)->fld) __val; \ @@ -956,15 +966,38 @@ static int virtscsi_init(struct virtio_device *vdev, return err; } +static void virtscsi_update_fc_host_attrs(struct virtio_device *vdev) +{ + struct Scsi_Host *shost = vdev->priv; + u64 node_name, port_name; + + if (virtscsi_config_get(vdev, pri...

...tion_template virtscsi_fc_template = { + .show_host_node_name = 1, + .show_host_port_name = 1, + .show_host_port_type = 1, + .show_host_port_state = 1, +}; + +static struct scsi_transport_template *virtscsi_fc_transport_template; + #define virtscsi_config_get(vdev, fld) \ ({ \ typeof(((struct virtio_scsi_config *)0)->fld) __val; \ @@ -956,15 +966,42 @@ static int virtscsi_init(struct virtio_device *vdev, return err; } +static void virtscsi_update_fc_host_attrs(struct virtio_device *vdev) +{ + struct Scsi_Host *shost = vdev->priv; + u8 node_name[8], port_name[8]; + + if (virtscsi_config_get(vdev...

..._SIZE(features), .driver.name = KBUILD_MODNAME, .driver.owner = THIS_MODULE, .id_table = id_table, diff --git a/include/linux/virtio_scsi.h b/include/linux/virtio_scsi.h index 8ddeafd..dc8d305 100644 --- a/include/linux/virtio_scsi.h +++ b/include/linux/virtio_scsi.h @@ -69,6 +69,10 @@ struct virtio_scsi_config { u32 max_lun; } __packed; +/* Feature Bits */ +#define VIRTIO_SCSI_F_INOUT 0 +#define VIRTIO_SCSI_F_HOTPLUG 1 + /* Response codes */ #define VIRTIO_SCSI_S_OK 0 #define VIRTIO_SCSI_S_OVERRUN 1 @@ -105,6 +109,11 @@ st...

..._SIZE(features), .driver.name = KBUILD_MODNAME, .driver.owner = THIS_MODULE, .id_table = id_table, diff --git a/include/linux/virtio_scsi.h b/include/linux/virtio_scsi.h index 8ddeafd..dc8d305 100644 --- a/include/linux/virtio_scsi.h +++ b/include/linux/virtio_scsi.h @@ -69,6 +69,10 @@ struct virtio_scsi_config { u32 max_lun; } __packed; +/* Feature Bits */ +#define VIRTIO_SCSI_F_INOUT 0 +#define VIRTIO_SCSI_F_HOTPLUG 1 + /* Response codes */ #define VIRTIO_SCSI_S_OK 0 #define VIRTIO_SCSI_S_OVERRUN 1 @@ -105,6 +109,11 @@ st...

..._SIZE(features), .driver.name = KBUILD_MODNAME, .driver.owner = THIS_MODULE, .id_table = id_table, diff --git a/include/linux/virtio_scsi.h b/include/linux/virtio_scsi.h index 8ddeafd..dc8d305 100644 --- a/include/linux/virtio_scsi.h +++ b/include/linux/virtio_scsi.h @@ -69,6 +69,10 @@ struct virtio_scsi_config { u32 max_lun; } __packed; +/* Feature Bits */ +#define VIRTIO_SCSI_F_INOUT 0 +#define VIRTIO_SCSI_F_HOTPLUG 1 + /* Response codes */ #define VIRTIO_SCSI_S_OK 0 #define VIRTIO_SCSI_S_OVERRUN 1 @@ -105,6 +109,11 @@ st...

..._SIZE(features), .driver.name = KBUILD_MODNAME, .driver.owner = THIS_MODULE, .id_table = id_table, diff --git a/include/linux/virtio_scsi.h b/include/linux/virtio_scsi.h index 8ddeafd..dc8d305 100644 --- a/include/linux/virtio_scsi.h +++ b/include/linux/virtio_scsi.h @@ -69,6 +69,10 @@ struct virtio_scsi_config { u32 max_lun; } __packed; +/* Feature Bits */ +#define VIRTIO_SCSI_F_INOUT 0 +#define VIRTIO_SCSI_F_HOTPLUG 1 + /* Response codes */ #define VIRTIO_SCSI_S_OK 0 #define VIRTIO_SCSI_S_OVERRUN 1 @@ -105,6 +109,11 @@ st...

...hink so. The fc_host sysfs uses u64 to represent port_name and node_name, > > this patch does the same, so using virtio_* helpers for these fields should > > handle the endianness correctly. > > I was suspicious about it because they are defined as "u8 x[8]" in the > virtio_scsi_config struct. So you would need to read with > virtio_cread_bytes and pass the result to wwn_to_u64. > > For example, if you have 0x500123456789abcd this would be > > 0x50 0x01 0x23 0x45 0x67 0x89 0xab 0cd > > in virtio_scsi_config, and then virtio_cread64 would read it as a &gt...