qed: Introduce VFs
This adds the qed VFs for the first time -
The vfs are limited functions, with a very different PCI bar structure
[when compared with PFs] to better impose the related security demands
associated with them.
This patch includes the logic neccesary to allow VFs to successfully probe
[without actually adding the ability to enable iov].
This includes diverging all the flows that would occur as part of the pci
probe of the driver, preventing VF from accessing registers/memories it
can't and instead utilize the VF->PF channel to query the PF for needed
information.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/qlogic/qed/qed_hw.c b/drivers/net/ethernet/qlogic/qed/qed_hw.c
index a9be5a4..0ada7fd 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_hw.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_hw.c
@@ -23,6 +23,7 @@
#include "qed_hsi.h"
#include "qed_hw.h"
#include "qed_reg_addr.h"
+#include "qed_sriov.h"
#define QED_BAR_ACQUIRE_TIMEOUT 1000
@@ -236,8 +237,12 @@
quota = min_t(size_t, n - done,
PXP_EXTERNAL_BAR_PF_WINDOW_SINGLE_SIZE);
- qed_ptt_set_win(p_hwfn, p_ptt, hw_addr + done);
- hw_offset = qed_ptt_get_bar_addr(p_ptt);
+ if (IS_PF(p_hwfn->cdev)) {
+ qed_ptt_set_win(p_hwfn, p_ptt, hw_addr + done);
+ hw_offset = qed_ptt_get_bar_addr(p_ptt);
+ } else {
+ hw_offset = hw_addr + done;
+ }
dw_count = quota / 4;
host_addr = (u32 *)((u8 *)addr + done);
@@ -808,6 +813,9 @@
break;
case PROTOCOLID_ETH:
pq_id = p_params->eth.tc;
+ if (p_params->eth.is_vf)
+ pq_id += p_hwfn->qm_info.vf_queues_offset +
+ p_params->eth.vf_id;
break;
default:
pq_id = 0;