6.15-stable review patch. If anyone has any objections, please let me know.
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From: Long Li longli@microsoft.com
[ Upstream commit e0fca6f2cebff539e9317a15a37dcf432e3b851a ]
MANA supports RDMA in PF mode. The driver should record the doorbell physical address when in PF mode.
The doorbell physical address is used by the RDMA driver to map doorbell pages of the device to user-mode applications through RDMA verbs interface. In the past, they have been mapped to user-mode while the device is in VF mode. With the support for PF mode implemented, also expose those pages in PF mode.
Support for PF mode is implemented in 290e5d3c49f6 ("net: mana: Add support for Multi Vports on Bare metal")
Signed-off-by: Long Li longli@microsoft.com Reviewed-by: Simon Horman horms@kernel.org Link: https://patch.msgid.link/1750210606-12167-1-git-send-email-longli@linuxonhyp... Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/microsoft/mana/gdma_main.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c index 4ffaf75888852..3dc94349820d2 100644 --- a/drivers/net/ethernet/microsoft/mana/gdma_main.c +++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c @@ -31,6 +31,9 @@ static void mana_gd_init_pf_regs(struct pci_dev *pdev) gc->db_page_base = gc->bar0_va + mana_gd_r64(gc, GDMA_PF_REG_DB_PAGE_OFF);
+ gc->phys_db_page_base = gc->bar0_pa + + mana_gd_r64(gc, GDMA_PF_REG_DB_PAGE_OFF); + sriov_base_off = mana_gd_r64(gc, GDMA_SRIOV_REG_CFG_BASE_OFF);
sriov_base_va = gc->bar0_va + sriov_base_off;