[uzed] Set up pktbufs similarly to zybo

target/uzed/target.c

@@ -20,11 +20,16 @@
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
+#include <stdio.h>
 #include <dev/gpio.h>
 #include <target/gpioconfig.h>
+#include <lib/pktbuf.h>
+#include <kernel/vm.h>
 #include <platform/zynq.h>
 #include <platform/gem.h>
 
+#define ZYNQ_PKTBUF_CNT 128
+
 zynq_pll_cfg_tree_t zynq_pll_cfg = {
     .arm = {
         .lock_cnt = 250,
@@ -180,6 +185,29 @@ void target_early_init(void)
 
 void target_init(void)
 {
+    paddr_t buf_vaddr;
+    void *hdr_addr;
+
+    /* TODO: Move into zynq_common once the init order is sorted out with gem_init needing
+     * pktbufs, and app init running after target_init */
+    if (vmm_alloc_contiguous(vmm_get_kernel_aspace(), "pktbuf_headers",
+            ZYNQ_PKTBUF_CNT * sizeof(pktbuf_buf_t), (void **)&hdr_addr, 0, 0, ARCH_MMU_FLAG_CACHED) < 0) {
+        printf("Failed to initialize pktbuf hdr slab\n");
+        return;
+    }
+
+    for (size_t i = 0; i < ZYNQ_PKTBUF_CNT; i++) {
+        pktbuf_create((void *)hdr_addr, sizeof(pktbuf_t));
+        hdr_addr += sizeof(pktbuf_t);
+    }
+
+    if (vmm_alloc_contiguous(vmm_get_kernel_aspace(), "pktbuf_buffers",
+            ZYNQ_PKTBUF_CNT * sizeof(pktbuf_buf_t), (void **)&buf_vaddr, 0, 0, ARCH_MMU_FLAG_UNCACHED) < 0) {
+        printf("Failed to initialize pktbuf vm slab\n");
+        return;
+    }
+
+    pktbuf_create_bufs((void *)buf_vaddr, ZYNQ_PKTBUF_CNT * sizeof(pktbuf_buf_t));
     gem_init(GEM0_BASE);
 }
 

target/zybo/target.c

@@ -208,6 +208,8 @@ void target_init(void)
     paddr_t buf_vaddr;
     void *hdr_addr;
 
+    /* TODO: Move into zynq_common once the init order is sorted out with gem_init needing
+     * pktbufs, and app init running after target_init */
     if (vmm_alloc_contiguous(vmm_get_kernel_aspace(), "pktbuf_headers",
             ZYNQ_PKTBUF_CNT * sizeof(pktbuf_buf_t), (void **)&hdr_addr, 0, 0, ARCH_MMU_FLAG_CACHED) < 0) {
         printf("Failed to initialize pktbuf hdr slab\n");