Commit d1038467 authored by Matthew Rosato's avatar Matthew Rosato Committed by Christian Borntraeger

s390/pci: stash dtsm and maxstbl

Store information about what IOAT designation types are supported by
underlying hardware as well as the largest store block size allowed.
These values will be needed by passthrough.
Reviewed-by: default avatarNiklas Schnelle <schnelle@linux.ibm.com>
Reviewed-by: default avatarPierre Morel <pmorel@linux.ibm.com>
Reviewed-by: default avatarChristian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: default avatarMatthew Rosato <mjrosato@linux.ibm.com>
Link: https://lore.kernel.org/r/20220606203325.110625-10-mjrosato@linux.ibm.comSigned-off-by: default avatarChristian Borntraeger <borntraeger@linux.ibm.com>
parent c68468ed
......@@ -126,9 +126,11 @@ struct zpci_dev {
u32 gisa; /* GISA designation for passthrough */
u16 vfn; /* virtual function number */
u16 pchid; /* physical channel ID */
u16 maxstbl; /* Maximum store block size */
u8 pfgid; /* function group ID */
u8 pft; /* pci function type */
u8 port;
u8 dtsm; /* Supported DT mask */
u8 rid_available : 1;
u8 has_hp_slot : 1;
u8 has_resources : 1;
......
......@@ -153,9 +153,11 @@ struct clp_rsp_query_pci_grp {
u8 : 6;
u8 frame : 1;
u8 refresh : 1; /* TLB refresh mode */
u16 reserved2;
u16 : 3;
u16 maxstbl : 13; /* Maximum store block size */
u16 mui;
u16 : 16;
u8 dtsm; /* Supported DT mask */
u8 reserved3;
u16 maxfaal;
u16 : 4;
u16 dnoi : 12;
......
......@@ -106,6 +106,8 @@ static void clp_store_query_pci_fngrp(struct zpci_dev *zdev,
zdev->max_msi = response->noi;
zdev->fmb_update = response->mui;
zdev->version = response->version;
zdev->maxstbl = response->maxstbl;
zdev->dtsm = response->dtsm;
switch (response->version) {
case 1:
......
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